diff --git a/.gitignore b/.gitignore
index f9fa99e..9b8c6b5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,4 @@
 /target
 *.sqlite
+node_modules/
+test-data/
\ No newline at end of file
diff --git a/Cargo.lock b/Cargo.lock
index f298ec3..b08daae 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -47,6 +47,12 @@ version = "0.2.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "683d7910e743518b0e34f1186f92494becacb047c7b6bf616c96772180fef923"
 
+[[package]]
+name = "alphanumeric-sort"
+version = "1.5.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d67c60c5f10f11c6ee04de72b2dd98bb9d2548cbc314d22a609bfa8bd9e87e8f"
+
 [[package]]
 name = "android_system_properties"
 version = "0.1.5"
@@ -472,6 +478,26 @@ dependencies = [
  "subtle",
 ]
 
+[[package]]
+name = "dirs"
+version = "4.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ca3aa72a6f96ea37bbc5aa912f6788242832f75369bdfdadcb0e38423f100059"
+dependencies = [
+ "dirs-sys",
+]
+
+[[package]]
+name = "dirs-sys"
+version = "0.3.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1b1d1d91c932ef41c0f2663aa8b0ca0342d444d842c06914aa0a7e352d0bada6"
+dependencies = [
+ "libc",
+ "redox_users",
+ "winapi",
+]
+
 [[package]]
 name = "displaydoc"
 version = "0.2.5"
@@ -495,7 +521,7 @@ dependencies = [
 [[package]]
 name = "dojo-introspect-events"
 version = "0.1.0"
-source = "git+https://github.com/dojoengine/dojo-introspect?branch=main#490003ea57afdaea72c85c90be07c73c63f45604"
+source = "git+https://github.com/dojoengine/dojo-introspect?branch=next#45ce54d11c8f7860aec11e4c3733fe699dd37d45"
 dependencies = [
  "introspect-types",
  "introspect-value",
@@ -506,8 +532,10 @@ dependencies = [
 [[package]]
 name = "dojo-introspect-types"
 version = "0.1.0"
-source = "git+https://github.com/dojoengine/dojo-introspect?branch=main#490003ea57afdaea72c85c90be07c73c63f45604"
+source = "git+https://github.com/dojoengine/dojo-introspect?branch=next#45ce54d11c8f7860aec11e4c3733fe699dd37d45"
 dependencies = [
+ "anyhow",
+ "async-trait",
  "cainome-cairo-serde",
  "dojo-introspect-utils",
  "introspect-events",
@@ -523,7 +551,7 @@ dependencies = [
 [[package]]
 name = "dojo-introspect-utils"
 version = "0.1.0"
-source = "git+https://github.com/dojoengine/dojo-introspect?branch=main#490003ea57afdaea72c85c90be07c73c63f45604"
+source = "git+https://github.com/dojoengine/dojo-introspect?branch=next#45ce54d11c8f7860aec11e4c3733fe699dd37d45"
 dependencies = [
  "anyhow",
  "cainome-cairo-serde",
@@ -594,6 +622,17 @@ dependencies = [
  "windows-sys 0.61.2",
 ]
 
+[[package]]
+name = "etcetera"
+version = "0.8.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "136d1b5283a1ab77bd9257427ffd09d8667ced0570b6f938942bc7568ed5b943"
+dependencies = [
+ "cfg-if",
+ "home",
+ "windows-sys 0.48.0",
+]
+
 [[package]]
 name = "eth-keystore"
 version = "0.5.0"
@@ -876,6 +915,15 @@ version = "0.4.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7f24254aa9a54b5c858eaee2f5bccdb46aaf0e486a595ed5fd8f86ba55232a70"
 
+[[package]]
+name = "hkdf"
+version = "0.12.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7b5f8eb2ad728638ea2c7d47a21db23b7b58a72ed6a38256b8a1849f15fbbdf7"
+dependencies = [
+ "hmac",
+]
+
 [[package]]
 name = "hmac"
 version = "0.12.1"
@@ -885,6 +933,15 @@ dependencies = [
  "digest",
 ]
 
+[[package]]
+name = "home"
+version = "0.5.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "589533453244b0995c858700322199b2becb13b627df2851f64a2775d024abcf"
+dependencies = [
+ "windows-sys 0.59.0",
+]
+
 [[package]]
 name = "http"
 version = "1.3.1"
@@ -1215,7 +1272,7 @@ dependencies = [
 [[package]]
 name = "introspect-events"
 version = "0.1.2"
-source = "git+https://github.com/cartridge-gg/introspect?branch=main#5025c1e8d465bf1282cb1a8cce914f935f912989"
+source = "git+https://github.com/cartridge-gg/introspect?branch=next#ba3b47c5976e2126d584800ecb1e8193e0cc9369"
 dependencies = [
  "cainome-cairo-serde",
  "introspect-types",
@@ -1227,7 +1284,7 @@ dependencies = [
 [[package]]
 name = "introspect-types"
 version = "0.1.2"
-source = "git+https://github.com/cartridge-gg/introspect?branch=main#5025c1e8d465bf1282cb1a8cce914f935f912989"
+source = "git+https://github.com/cartridge-gg/introspect?branch=next#ba3b47c5976e2126d584800ecb1e8193e0cc9369"
 dependencies = [
  "cainome-cairo-serde",
  "introspect-value",
@@ -1240,7 +1297,7 @@ dependencies = [
 [[package]]
 name = "introspect-value"
 version = "0.1.2"
-source = "git+https://github.com/cartridge-gg/introspect?branch=main#5025c1e8d465bf1282cb1a8cce914f935f912989"
+source = "git+https://github.com/cartridge-gg/introspect?branch=next#ba3b47c5976e2126d584800ecb1e8193e0cc9369"
 dependencies = [
  "cainome-cairo-serde",
  "convert_case 0.8.0",
@@ -1342,6 +1399,17 @@ version = "0.2.177"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2874a2af47a2325c2001a6e6fad9b16a53b802102b528163885171cf92b15976"
 
+[[package]]
+name = "libredox"
+version = "0.1.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "416f7e718bdb06000964960ffa43b4335ad4012ae8b99060261aa4a8088d5ccb"
+dependencies = [
+ "bitflags",
+ "libc",
+ "redox_syscall",
+]
+
 [[package]]
 name = "libsqlite3-sys"
 version = "0.27.0"
@@ -1395,6 +1463,16 @@ dependencies = [
  "regex-automata",
 ]
 
+[[package]]
+name = "md-5"
+version = "0.10.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d89e7ee0cfbedfc4da3340218492196241d89eefb6dab27de5df917a6d2e78cf"
+dependencies = [
+ "cfg-if",
+ "digest",
+]
+
 [[package]]
 name = "memchr"
 version = "2.7.6"
@@ -1419,13 +1497,13 @@ dependencies = [
 
 [[package]]
 name = "mio"
-version = "1.0.4"
+version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "78bed444cc8a2160f01cbcf811ef18cac863ad68ae8ca62092e8db51d51c761c"
+checksum = "69d83b0086dc8ecf3ce9ae2874b2d1290252e2a30720bea58a5c6639b0092873"
 dependencies = [
  "libc",
  "wasi",
- "windows-sys 0.59.0",
+ "windows-sys 0.61.2",
 ]
 
 [[package]]
@@ -1847,6 +1925,17 @@ dependencies = [
  "bitflags",
 ]
 
+[[package]]
+name = "redox_users"
+version = "0.4.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ba009ff324d1fc1b900bd1fdb31564febe58a8ccc8a6fdbb93b543d33b13ca43"
+dependencies = [
+ "getrandom 0.2.16",
+ "libredox",
+ "thiserror 1.0.69",
+]
+
 [[package]]
 name = "ref-cast"
 version = "1.0.25"
@@ -1922,6 +2011,15 @@ dependencies = [
  "webpki-roots",
 ]
 
+[[package]]
+name = "resolve-path"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "321e5e41b3b192dab6f1e75b9deacb6688b4b8c5e68906a78e8f43e7c2887bb5"
+dependencies = [
+ "dirs",
+]
+
 [[package]]
 name = "rfc6979"
 version = "0.4.0"
@@ -2005,9 +2103,9 @@ dependencies = [
 
 [[package]]
 name = "rustls"
-version = "0.23.32"
+version = "0.23.33"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cd3c25631629d034ce7cd9940adc9d45762d46de2b0f57193c4443b92c6d4d40"
+checksum = "751e04a496ca00bb97a5e043158d23d66b5aabf2e1d5aa2a0aaebb1aafe6f82c"
 dependencies = [
  "once_cell",
  "ring",
@@ -2313,6 +2411,7 @@ checksum = "c9a2ccff1a000a5a59cd33da541d9f2fdcd9e6e8229cc200565942bff36d0aaa"
 dependencies = [
  "sqlx-core",
  "sqlx-macros",
+ "sqlx-postgres",
  "sqlx-sqlite",
 ]
 
@@ -2344,6 +2443,7 @@ dependencies = [
  "paste",
  "percent-encoding",
  "serde",
+ "serde_json",
  "sha2",
  "smallvec",
  "sqlformat",
@@ -2384,6 +2484,7 @@ dependencies = [
  "serde_json",
  "sha2",
  "sqlx-core",
+ "sqlx-postgres",
  "sqlx-sqlite",
  "syn 1.0.109",
  "tempfile",
@@ -2391,6 +2492,44 @@ dependencies = [
  "url",
 ]
 
+[[package]]
+name = "sqlx-postgres"
+version = "0.7.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7c824eb80b894f926f89a0b9da0c7f435d27cdd35b8c655b114e58223918577e"
+dependencies = [
+ "atoi",
+ "base64 0.21.7",
+ "bitflags",
+ "byteorder",
+ "crc",
+ "dotenvy",
+ "etcetera",
+ "futures-channel",
+ "futures-core",
+ "futures-io",
+ "futures-util",
+ "hex",
+ "hkdf",
+ "hmac",
+ "home",
+ "itoa",
+ "log",
+ "md-5",
+ "memchr",
+ "once_cell",
+ "rand 0.8.5",
+ "serde",
+ "serde_json",
+ "sha2",
+ "smallvec",
+ "sqlx-core",
+ "stringprep",
+ "thiserror 1.0.69",
+ "tracing",
+ "whoami",
+]
+
 [[package]]
 name = "sqlx-sqlite"
 version = "0.7.4"
@@ -2600,6 +2739,17 @@ version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a2eb9349b6444b326872e140eb1cf5e7c522154d69e7a0ffb0fb81c06b37543f"
 
+[[package]]
+name = "stringprep"
+version = "0.1.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7b4df3d392d81bd458a8a621b8bffbd2302a12ffe288a9d931670948749463b1"
+dependencies = [
+ "unicode-bidi",
+ "unicode-normalization",
+ "unicode-properties",
+]
+
 [[package]]
 name = "strsim"
 version = "0.11.1"
@@ -2986,6 +3136,22 @@ dependencies = [
  "url",
 ]
 
+[[package]]
+name = "torii-json-test"
+version = "0.1.0"
+dependencies = [
+ "anyhow",
+ "dojo-introspect-events",
+ "dojo-types-manager",
+ "resolve-path",
+ "starknet",
+ "tokio",
+ "torii-core",
+ "torii-decoder-introspect",
+ "torii-sink-json",
+ "torii-test-utils",
+]
+
 [[package]]
 name = "torii-registry"
 version = "0.1.0"
@@ -3051,6 +3217,43 @@ dependencies = [
  "tracing",
 ]
 
+[[package]]
+name = "torii-sqlite-test"
+version = "0.1.0"
+dependencies = [
+ "anyhow",
+ "dojo-introspect-events",
+ "dojo-types-manager",
+ "resolve-path",
+ "starknet",
+ "starknet-types-core",
+ "tokio",
+ "torii-core",
+ "torii-decoder-introspect",
+ "torii-sink-sqlite",
+ "torii-test-utils",
+]
+
+[[package]]
+name = "torii-test-utils"
+version = "0.1.0"
+dependencies = [
+ "alphanumeric-sort",
+ "anyhow",
+ "async-trait",
+ "dojo-introspect-types",
+ "dojo-types-manager",
+ "introspect-types",
+ "resolve-path",
+ "serde",
+ "serde_json",
+ "starknet",
+ "starknet-types-core",
+ "thiserror 2.0.17",
+ "torii-utils",
+ "tracing",
+]
+
 [[package]]
 name = "torii-types-erc20"
 version = "0.1.0"
@@ -3082,6 +3285,22 @@ dependencies = [
  "torii-core",
 ]
 
+[[package]]
+name = "torii-utils"
+version = "0.1.0"
+dependencies = [
+ "anyhow",
+ "dojo-introspect-utils",
+ "introspect-events",
+ "introspect-types",
+ "introspect-value",
+ "serde",
+ "serde_json",
+ "starknet",
+ "starknet-types-core",
+ "thiserror 2.0.17",
+]
+
 [[package]]
 name = "tower"
 version = "0.5.2"
@@ -3231,12 +3450,33 @@ dependencies = [
  "static_assertions",
 ]
 
+[[package]]
+name = "unicode-bidi"
+version = "0.3.18"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5c1cb5db39152898a79168971543b1cb5020dff7fe43c8dc468b0885f5e29df5"
+
 [[package]]
 name = "unicode-ident"
 version = "1.0.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f63a545481291138910575129486daeaf8ac54aee4387fe7906919f7830c7d9d"
 
+[[package]]
+name = "unicode-normalization"
+version = "0.1.24"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5033c97c4262335cded6d6fc3e5c18ab755e1a3dc96376350f3d8e9f009ad956"
+dependencies = [
+ "tinyvec",
+]
+
+[[package]]
+name = "unicode-properties"
+version = "0.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e70f2a8b45122e719eb623c01822704c4e0907e7e426a05927e1a1cfff5b75d0"
+
 [[package]]
 name = "unicode-segmentation"
 version = "1.12.0"
@@ -3337,6 +3577,12 @@ dependencies = [
  "wit-bindgen",
 ]
 
+[[package]]
+name = "wasite"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b8dad83b4f25e74f184f64c43b150b91efe7647395b42289f38e50566d82855b"
+
 [[package]]
 name = "wasm-bindgen"
 version = "0.2.104"
@@ -3438,6 +3684,38 @@ dependencies = [
  "rustls-pki-types",
 ]
 
+[[package]]
+name = "whoami"
+version = "1.6.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5d4a4db5077702ca3015d3d02d74974948aba2ad9e12ab7df718ee64ccd7e97d"
+dependencies = [
+ "libredox",
+ "wasite",
+]
+
+[[package]]
+name = "winapi"
+version = "0.3.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5c839a674fcd7a98952e593242ea400abe93992746761e38641405d28b00f419"
+dependencies = [
+ "winapi-i686-pc-windows-gnu",
+ "winapi-x86_64-pc-windows-gnu",
+]
+
+[[package]]
+name = "winapi-i686-pc-windows-gnu"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
+
+[[package]]
+name = "winapi-x86_64-pc-windows-gnu"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
+
 [[package]]
 name = "windows-core"
 version = "0.62.2"
@@ -3497,6 +3775,15 @@ dependencies = [
  "windows-link",
 ]
 
+[[package]]
+name = "windows-sys"
+version = "0.48.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "677d2418bec65e3338edb076e806bc1ec15693c5d0104683f2efe857f61056a9"
+dependencies = [
+ "windows-targets 0.48.5",
+]
+
 [[package]]
 name = "windows-sys"
 version = "0.52.0"
@@ -3533,6 +3820,21 @@ dependencies = [
  "windows-link",
 ]
 
+[[package]]
+name = "windows-targets"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9a2fa6e2155d7247be68c096456083145c183cbbbc2764150dda45a87197940c"
+dependencies = [
+ "windows_aarch64_gnullvm 0.48.5",
+ "windows_aarch64_msvc 0.48.5",
+ "windows_i686_gnu 0.48.5",
+ "windows_i686_msvc 0.48.5",
+ "windows_x86_64_gnu 0.48.5",
+ "windows_x86_64_gnullvm 0.48.5",
+ "windows_x86_64_msvc 0.48.5",
+]
+
 [[package]]
 name = "windows-targets"
 version = "0.52.6"
@@ -3566,6 +3868,12 @@ dependencies = [
  "windows_x86_64_msvc 0.53.1",
 ]
 
+[[package]]
+name = "windows_aarch64_gnullvm"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2b38e32f0abccf9987a4e3079dfb67dcd799fb61361e53e2882c3cbaf0d905d8"
+
 [[package]]
 name = "windows_aarch64_gnullvm"
 version = "0.52.6"
@@ -3578,6 +3886,12 @@ version = "0.53.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a9d8416fa8b42f5c947f8482c43e7d89e73a173cead56d044f6a56104a6d1b53"
 
+[[package]]
+name = "windows_aarch64_msvc"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dc35310971f3b2dbbf3f0690a219f40e2d9afcf64f9ab7cc1be722937c26b4bc"
+
 [[package]]
 name = "windows_aarch64_msvc"
 version = "0.52.6"
@@ -3590,6 +3904,12 @@ version = "0.53.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b9d782e804c2f632e395708e99a94275910eb9100b2114651e04744e9b125006"
 
+[[package]]
+name = "windows_i686_gnu"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a75915e7def60c94dcef72200b9a8e58e5091744960da64ec734a6c6e9b3743e"
+
 [[package]]
 name = "windows_i686_gnu"
 version = "0.52.6"
@@ -3614,6 +3934,12 @@ version = "0.53.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "fa7359d10048f68ab8b09fa71c3daccfb0e9b559aed648a8f95469c27057180c"
 
+[[package]]
+name = "windows_i686_msvc"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8f55c233f70c4b27f66c523580f78f1004e8b5a8b659e05a4eb49d4166cca406"
+
 [[package]]
 name = "windows_i686_msvc"
 version = "0.52.6"
@@ -3626,6 +3952,12 @@ version = "0.53.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1e7ac75179f18232fe9c285163565a57ef8d3c89254a30685b57d83a38d326c2"
 
+[[package]]
+name = "windows_x86_64_gnu"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "53d40abd2583d23e4718fddf1ebec84dbff8381c07cae67ff7768bbf19c6718e"
+
 [[package]]
 name = "windows_x86_64_gnu"
 version = "0.52.6"
@@ -3638,6 +3970,12 @@ version = "0.53.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9c3842cdd74a865a8066ab39c8a7a473c0778a3f29370b5fd6b4b9aa7df4a499"
 
+[[package]]
+name = "windows_x86_64_gnullvm"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0b7b52767868a23d5bab768e390dc5f5c55825b6d30b86c844ff2dc7414044cc"
+
 [[package]]
 name = "windows_x86_64_gnullvm"
 version = "0.52.6"
@@ -3650,6 +3988,12 @@ version = "0.53.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0ffa179e2d07eee8ad8f57493436566c7cc30ac536a3379fdf008f47f6bb7ae1"
 
+[[package]]
+name = "windows_x86_64_msvc"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ed94fce61571a4006852b7389a063ab983c02eb1bb37b47f8272ce92d06d9538"
+
 [[package]]
 name = "windows_x86_64_msvc"
 version = "0.52.6"
diff --git a/Cargo.toml b/Cargo.toml
index 5e8d879..1473c21 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,5 +1,6 @@
 [workspace]
 members = [
+    "crates/utils",
     "crates/core/torii-core",
     "crates/core/torii-registry",
     "crates/fetchers/torii-fetcher-jsonrpc",
@@ -14,6 +15,7 @@ members = [
     "crates/types/torii-types-erc721",
     "crates/types/dojo-types-manager",
     "bins/*",
+    "tests/*",
 ]
 resolver = "2"
 
@@ -26,9 +28,11 @@ repository = "https://github.com/dojoengine/torii-core"
 publish = false
 
 [workspace.dependencies]
+alphanumeric-sort = "1.5.3"
 anyhow = "1"
 async-trait = "0.1"
 bytes = "1"
+resolve-path = "0.1.0"
 starknet = "0.17"
 tokio = { version = "1", features = [
     "macros",
@@ -44,15 +48,29 @@ config = "0.14"
 sqlx = { version = "0.7", default-features = false, features = [
     "runtime-tokio",
     "sqlite",
+    "postgres",
 ] }
 url = "2"
-introspect-value = { git = "https://github.com/cartridge-gg/introspect", branch = "main" }
-introspect-types = { git = "https://github.com/cartridge-gg/introspect", branch = "main" }
-introspect-events = { git = "https://github.com/cartridge-gg/introspect", branch = "main" }
-dojo-introspect-types = { git = "https://github.com/dojoengine/dojo-introspect", branch = "main" }
-dojo-introspect-utils = { git = "https://github.com/dojoengine/dojo-introspect", branch = "main" }
-dojo-introspect-events = { git = "https://github.com/dojoengine/dojo-introspect", branch = "main" }
+introspect-value = { git = "https://github.com/cartridge-gg/introspect", branch = "next" }
+introspect-types = { git = "https://github.com/cartridge-gg/introspect", branch = "next" }
+introspect-events = { git = "https://github.com/cartridge-gg/introspect", branch = "next" }
+# introspect-value = { path = "../introspect/crates/value" }
+# introspect-types = { path = "../introspect/crates/types" }
+# introspect-events = { path = "../introspect/crates/events" }
+dojo-introspect-types = { git = "https://github.com/dojoengine/dojo-introspect", branch = "next" }
+dojo-introspect-utils = { git = "https://github.com/dojoengine/dojo-introspect", branch = "next" }
+dojo-introspect-events = { git = "https://github.com/dojoengine/dojo-introspect", branch = "next" }
+# dojo-introspect-types = { path = "../dojo-introspect/crates/types" }
+# dojo-introspect-utils = { path = "../dojo-introspect/crates/utils" }
+# dojo-introspect-events = { path = "../dojo-introspect/crates/events" }
 dojo-types-manager = { path = "crates/types/dojo-types-manager" }
-torii-types-introspect = { path = "crates/types/torii-types-introspect" }
 starknet-types-core = "0.2.0"
 thiserror = "2.0.17"
+torii-core = { path = "crates/core/torii-core" }
+torii-registry = { path = "crates/core/torii-registry" }
+torii-types-introspect = { path = "crates/types/torii-types-introspect" }
+torii-decoder-introspect = { path = "crates/decoders/torii-decoder-introspect" }
+torii-sink-json = { path = "crates/sinks/torii-sink-json" }
+torii-sink-sqlite = { path = "crates/sinks/torii-sink-sqlite" }
+torii-utils = { path = "crates/utils" }
+torii-test-utils = { path = "tests/test_utils" }
diff --git a/crates/decoders/torii-decoder-introspect/src/builders.rs b/crates/decoders/torii-decoder-introspect/src/builders.rs
index f42b5a3..dba8ea7 100644
--- a/crates/decoders/torii-decoder-introspect/src/builders.rs
+++ b/crates/decoders/torii-decoder-introspect/src/builders.rs
@@ -3,10 +3,10 @@ use dojo_introspect_events::{
     DojoEvent, EventEmitted, EventRegistered, EventUpgraded, ModelRegistered, ModelUpgraded,
     StoreDelRecord, StoreSetRecord, StoreUpdateMember, StoreUpdateRecord,
 };
-use dojo_introspect_types::{DojoSchemaFetcher, DojoSchemaFetcherError};
+use dojo_introspect_types::DojoSchemaFetcher;
 use dojo_types_manager::{DojoManagerError, DojoTable, DojoTableErrors};
 use introspect_value::{Field, Value};
-use starknet::{core::types::EmittedEvent, providers::Provider};
+use starknet::core::types::EmittedEvent;
 use starknet_types_core::felt::Felt;
 use std::collections::hash_map::DefaultHasher;
 use std::hash::{Hash, Hasher};
@@ -22,7 +22,7 @@ fn make_entity_id_field(entity_id: Felt) -> Field {
     }
 }
 
-fn make_entity_id_for_event(keys: Vec<Felt>) -> Field {
+fn make_entity_id_for_event(keys: &Vec<Felt>) -> Field {
     let mut hasher = DefaultHasher::new();
     keys.hash(&mut hasher);
     let entity_id = hasher.finish();
@@ -39,8 +39,9 @@ pub enum DojoEventBuilderError {
     #[error("Table Error: {0}")]
     TableError(#[from] DojoTableErrors),
     #[error("Schema fetch error: {0}")]
-    SchemaFetchError(#[from] DojoSchemaFetcherError),
+    SchemaFetchError(#[from] anyhow::Error),
 }
+
 pub type Result<T> = std::result::Result<T, DojoEventBuilderError>;
 
 pub trait DojoEventBuilder {
@@ -66,20 +67,20 @@ where
         .ok_or_else(|| DojoEventBuilderError::RawEventDecodeError(T::NAME.to_string()))
 }
 
-impl<P> DojoEventBuilder for IntrospectDecoder<P>
+impl<F> DojoEventBuilder for IntrospectDecoder<F>
 where
-    P: Provider,
+    F: DojoSchemaFetcher + Sync + Send,
 {
-    fn with_table<F, R>(&self, id: Felt, f: F) -> Result<R>
+    fn with_table<Fn, R>(&self, id: Felt, f: Fn) -> Result<R>
     where
-        F: FnOnce(&DojoTable) -> Result<R>,
+        Fn: FnOnce(&DojoTable) -> Result<R>,
     {
         self.manager.with_table(id, f)?
     }
 
     async fn build_model_registered(&self, raw: &EmittedEvent) -> Result<Envelope> {
         let event = raw_event_to_event::<ModelRegistered>(raw)?;
-        let struct_def = self.provider.schema(event.address).await?;
+        let struct_def = self.fetcher.schema(event.address).await?;
         let schema = self.manager.register_table(
             event.namespace,
             event.name,
@@ -98,7 +99,7 @@ where
 
     async fn build_model_upgraded(&self, raw: &EmittedEvent) -> Result<Envelope> {
         let event = raw_event_to_event::<ModelUpgraded>(raw)?;
-        let struct_def = self.provider.schema(event.address).await?;
+        let struct_def = self.fetcher.schema(event.address).await?;
         let schema = self
             .manager
             .update_table(event.selector, struct_def.fields)?;
@@ -114,7 +115,7 @@ where
 
     async fn build_event_registered(&self, raw: &EmittedEvent) -> Result<Envelope> {
         let event = raw_event_to_event::<EventRegistered>(raw)?;
-        let struct_def = self.provider.schema(event.address).await?;
+        let struct_def = self.fetcher.schema(event.address).await?;
         let schema = self.manager.register_table(
             event.namespace,
             event.name,
@@ -133,7 +134,7 @@ where
 
     async fn build_event_upgraded(&self, raw: &EmittedEvent) -> Result<Envelope> {
         let event = raw_event_to_event::<EventUpgraded>(raw)?;
-        let struct_def = self.provider.schema(event.address).await?;
+        let struct_def = self.fetcher.schema(event.address).await?;
         let schema = self
             .manager
             .update_table(event.selector, struct_def.fields)?;
@@ -192,11 +193,24 @@ where
 
     fn build_emit_event(&self, raw: &EmittedEvent) -> Result<Envelope> {
         let event = raw_event_to_event::<EventEmitted>(raw)?;
-        let (table_id, table_name, fields) = self.with_table(event.selector, |table| {
-            let fields = table.parse_values(event.values)?;
+        let id_field = make_entity_id_for_event(&event.keys);
+        let EventEmitted {
+            keys,
+            values,
+            selector,
+            ..
+        } = event;
+        let (table_id, table_name, fields) = self.with_table(selector, |table| {
+            let fields = match table.parse_key_values(keys.clone(), values.clone()) {
+                Ok(fields) => fields,
+                Err(e) => {
+                    println!("\nError Parsing keys: {keys:#?} values: {values:#?}");
+                    println!("\nError Parsing table: {table:#?}");
+                    return Err(DojoEventBuilderError::TableError(e));
+                }
+            };
             Ok((table.id, table.name.clone(), fields))
         })?;
-        let id_field = make_entity_id_for_event(event.keys);
         let data = UpdateRecordFieldsV1::new(table_id, table_name, id_field, fields);
         Ok(data.to_envelope(raw))
     }
diff --git a/crates/decoders/torii-decoder-introspect/src/lib.rs b/crates/decoders/torii-decoder-introspect/src/lib.rs
index 6d5440c..be03d20 100644
--- a/crates/decoders/torii-decoder-introspect/src/lib.rs
+++ b/crates/decoders/torii-decoder-introspect/src/lib.rs
@@ -4,11 +4,12 @@ use dojo_introspect_events::{
     DojoEvent, EventEmitted, EventRegistered, EventUpgraded, ModelRegistered, ModelUpgraded,
     StoreDelRecord, StoreSetRecord, StoreUpdateMember, StoreUpdateRecord,
 };
+use dojo_introspect_types::DojoSchemaFetcher;
 use dojo_types_manager::{DojoManager, JsonStore};
 use serde::{Deserialize, Serialize};
 use starknet::{
     core::types::EmittedEvent,
-    providers::{jsonrpc::HttpTransport, JsonRpcClient, Provider, Url},
+    providers::{jsonrpc::HttpTransport, JsonRpcClient, Url},
 };
 use std::collections::{HashMap, HashSet};
 use std::path::PathBuf;
@@ -46,13 +47,10 @@ pub struct IntrospectDecoderConfig {
 }
 
 /// Implementation of the introspect decoder.
-struct IntrospectDecoder<P>
-where
-    P: Provider,
-{
+pub struct IntrospectDecoder<F> {
     pub filter: DecoderFilter,
     pub manager: DojoManager<JsonStore>,
-    pub provider: P,
+    pub fetcher: F,
 }
 
 impl IntrospectDecoder<JsonRpcClient<HttpTransport>> {
@@ -82,7 +80,7 @@ impl IntrospectDecoder<JsonRpcClient<HttpTransport>> {
         }
         let provider = JsonRpcClient::new(HttpTransport::new(cfg.rpc_url));
 
-        let store = JsonStore::new(cfg.store_path.as_path());
+        let store = JsonStore::new(&cfg.store_path);
 
         let manager = DojoManager::new(store)?;
         let filter = DecoderFilter {
@@ -94,15 +92,15 @@ impl IntrospectDecoder<JsonRpcClient<HttpTransport>> {
         Ok(Self {
             filter,
             manager,
-            provider,
+            fetcher: provider,
         })
     }
 }
 
 #[async_trait]
-impl<P> Decoder for IntrospectDecoder<P>
+impl<F> Decoder for IntrospectDecoder<F>
 where
-    P: Provider + Sync + Send,
+    F: DojoSchemaFetcher + Sync + Send + 'static,
 {
     fn name(&self) -> &'static str {
         DECODER_NAME
diff --git a/crates/fetchers/torii-fetcher-jsonrpc/src/lib.rs b/crates/fetchers/torii-fetcher-jsonrpc/src/lib.rs
index 8a92a99..800b228 100644
--- a/crates/fetchers/torii-fetcher-jsonrpc/src/lib.rs
+++ b/crates/fetchers/torii-fetcher-jsonrpc/src/lib.rs
@@ -3,7 +3,7 @@ use std::time::Duration;
 use anyhow::{anyhow, Result};
 use async_trait::async_trait;
 use serde::Deserialize;
-use starknet::core::types::{BlockId, BlockTag, EmittedEvent, EventFilter, EventsPage, Felt};
+use starknet::core::types::{EmittedEvent, EventFilter, EventsPage};
 use starknet::providers::{jsonrpc::HttpTransport, JsonRpcClient, Provider};
 use tokio::time::sleep;
 use torii_core::{FetchPlan, Fetcher};
diff --git a/crates/sinks/torii-sink-json/src/lib.rs b/crates/sinks/torii-sink-json/src/lib.rs
index 01b693d..52383f7 100644
--- a/crates/sinks/torii-sink-json/src/lib.rs
+++ b/crates/sinks/torii-sink-json/src/lib.rs
@@ -1,10 +1,9 @@
-use std::{fs::create_dir_all, path::PathBuf};
-
 use anyhow::{Context, Result};
 use async_trait::async_trait;
 use introspect_value::{Field, ToPrimitiveString};
 use serde::{Deserialize, Serialize};
 use serde_json::{Map, Value as JsonValue};
+use std::{fs, fs::create_dir_all, path::PathBuf};
 use torii_core::{Batch, Envelope, Event, Sink};
 use torii_types_introspect::{DeclareTableV1, DeleteRecordsV1, UpdateRecordFieldsV1};
 
@@ -26,6 +25,28 @@ impl ToJson for PathBuf {
     }
 }
 
+pub fn read_json_file<T>(path: &PathBuf) -> Result<T>
+where
+    T: for<'de> Deserialize<'de>,
+{
+    let data = fs::read_to_string(path)
+        .with_context(|| format!("Failed to read file at path: {:?}", path))?;
+    let value = serde_json::from_str(&data)
+        .with_context(|| format!("Failed to parse JSON from file at path: {:?}", path))?;
+    Ok(value)
+}
+
+pub fn write_json_file<T>(path: &PathBuf, value: &T) -> Result<()>
+where
+    T: Serialize,
+{
+    let file = fs::File::create(path)
+        .with_context(|| format!("Failed to create file at path: {:?}", path))?;
+    serde_json::to_writer_pretty(file, value)
+        .with_context(|| format!("Failed to write JSON to file at path: {:?}", path))?;
+    Ok(())
+}
+
 pub struct JsonSink {
     pub path: PathBuf,
     pub label: String,
@@ -33,6 +54,13 @@ pub struct JsonSink {
     pub record_path: PathBuf,
 }
 
+fn fields_to_json_array(fields: Vec<Field>) -> Vec<(String, JsonValue)> {
+    fields
+        .into_iter()
+        .map(|field| (field.name, field.value.into()))
+        .collect()
+}
+
 fn to_json_object(fields: Vec<Field>) -> Map<String, JsonValue> {
     let mut map = Map::new();
     for Field {
@@ -51,6 +79,8 @@ impl JsonSink {
         create_dir_all(&path)?;
         let table_path = path.join(TABLE_DIR);
         let record_path = path.join(RECORD_DIR);
+        create_dir_all(&table_path)?;
+        create_dir_all(&record_path)?;
         Ok(Self {
             path,
             label,
@@ -98,13 +128,8 @@ impl JsonSink {
         let path = self.table_path(&event.name);
         if path.exists() {
         } else {
-            let file = std::fs::File::create(&path)
-                .with_context(|| format!("Failed to create table file at path: {:?}", path))?;
-            serde_json::to_writer_pretty(file, &event).with_context(|| {
-                format!("Failed to write table data to file at path: {:?}", path)
-            })?;
+            write_json_file(&path, &event)?;
         }
-
         Ok(())
     }
 
@@ -120,15 +145,17 @@ impl JsonSink {
                 .to_primitive_string()
                 .context("Failed to convert id_field value to string")?,
         );
-        if path.exists() {
+
+        let data = if path.exists() {
+            let mut data: Map<String, JsonValue> = read_json_file(&path)?;
+            for (key, value) in fields_to_json_array(event.fields.clone()) {
+                data.insert(key, value);
+            }
+            data
         } else {
-            let file = std::fs::File::create(&path)
-                .with_context(|| format!("Failed to create record file at path: {:?}", path))?;
-            let json = to_json_object(event.fields.clone());
-            serde_json::to_writer_pretty(file, &json).with_context(|| {
-                format!("Failed to write record data to file at path: {:?}", path)
-            })?;
-        }
+            to_json_object(event.fields.clone())
+        };
+        write_json_file(&path, &data)?;
         Ok(())
     }
 
diff --git a/crates/sinks/torii-sink-sqlite/src/lib.rs b/crates/sinks/torii-sink-sqlite/src/lib.rs
index d06754a..2ea8dea 100644
--- a/crates/sinks/torii-sink-sqlite/src/lib.rs
+++ b/crates/sinks/torii-sink-sqlite/src/lib.rs
@@ -13,7 +13,10 @@ use introspect_types::ColumnDef;
 use introspect_value::{Field, Value};
 use serde::{Deserialize, Serialize};
 use serde_json::Value as JsonValue;
-use sqlx::sqlite::{SqliteArguments, SqliteConnectOptions, SqlitePoolOptions};
+use sqlx::{
+    sqlite::{SqliteArguments, SqliteConnectOptions, SqlitePoolOptions},
+    Sqlite, Transaction,
+};
 use sqlx::{Arguments, Row, SqlitePool};
 use tokio::sync::RwLock;
 use torii_core::{
@@ -233,7 +236,11 @@ impl SqliteSink {
         Ok(())
     }
 
-    async fn persist_schema(&self, schema: &TableSchema) -> Result<()> {
+    async fn persist_schema(
+        &self,
+        tx: &mut Transaction<'_, Sqlite>,
+        schema: &TableSchema,
+    ) -> Result<()> {
         let schema_json = serde_json::to_string(&schema.declare)?;
         sqlx::query(
             r#"
@@ -244,12 +251,16 @@ impl SqliteSink {
         )
         .bind(schema.table_name())
         .bind(schema_json)
-        .execute(&self.pool)
+        .execute(&mut **tx)
         .await?;
         Ok(())
     }
 
-    async fn ensure_table(&self, schema: &TableSchema) -> Result<()> {
+    async fn ensure_table(
+        &self,
+        tx: &mut Transaction<'_, Sqlite>,
+        schema: &TableSchema,
+    ) -> Result<()> {
         let table_ident = quote_ident(schema.table_name());
         let pk_ident = quote_ident(&schema.id_column().name);
         let columns = schema.all_columns();
@@ -263,7 +274,7 @@ impl SqliteSink {
             "CREATE TABLE IF NOT EXISTS {} ({}, PRIMARY KEY ({}))",
             table_ident, column_defs, pk_ident
         );
-        sqlx::query(&create_sql).execute(&self.pool).await?;
+        sqlx::query(&create_sql).execute(&mut **tx).await?;
 
         let pragma_sql = format!("PRAGMA table_info({})", table_ident);
         let rows = sqlx::query(&pragma_sql).fetch_all(&self.pool).await?;
@@ -283,13 +294,17 @@ impl SqliteSink {
                 quote_ident(&column.name),
                 column.sql_type.as_sql()
             );
-            sqlx::query(&alter_sql).execute(&self.pool).await?;
+            sqlx::query(&alter_sql).execute(&mut **tx).await?;
         }
 
         Ok(())
     }
 
-    async fn load_schema(&self, storage_name: &str) -> Result<Arc<TableSchema>> {
+    async fn load_schema(
+        &self,
+        tx: &mut Transaction<'_, Sqlite>,
+        storage_name: &str,
+    ) -> Result<Arc<TableSchema>> {
         if let Some(schema) = self.schemas.read().await.get(storage_name).cloned() {
             return Ok(schema);
         }
@@ -312,21 +327,26 @@ impl SqliteSink {
             declare,
             storage_name.to_string(),
         )?);
-        self.ensure_table(&schema).await?;
+        self.ensure_table(tx, &schema).await?;
 
         let mut cache = self.schemas.write().await;
         cache.insert(storage_name.to_string(), schema.clone());
         Ok(schema)
     }
 
-    async fn handle_declare(&self, env: &Envelope, event: &DeclareTableV1) -> Result<()> {
+    async fn handle_declare(
+        &self,
+        tx: &mut Transaction<'_, Sqlite>,
+        env: &Envelope,
+        event: &DeclareTableV1,
+    ) -> Result<()> {
         let storage_name = self.storage_table_name(&env.raw.from_address, event.name.as_str());
         let schema = Arc::new(TableSchema::from_declare(
             event.clone(),
             storage_name.clone(),
         )?);
-        self.persist_schema(&schema).await?;
-        self.ensure_table(&schema).await?;
+        self.persist_schema(tx, &schema).await?;
+        self.ensure_table(tx, &schema).await?;
 
         {
             let mut cache = self.schemas.write().await;
@@ -345,12 +365,13 @@ impl SqliteSink {
 
     async fn handle_update_record(
         &self,
+        tx: &mut Transaction<'_, Sqlite>,
         env: &Envelope,
         event: &UpdateRecordFieldsV1,
     ) -> Result<()> {
         let storage_name =
             self.storage_table_name(&env.raw.from_address, event.table_name.as_str());
-        let schema = self.load_schema(&storage_name).await?;
+        let schema = self.load_schema(tx, &storage_name).await?;
         let id_value = format_id_field(&event.id_field)?;
 
         let column_types: HashMap<_, _> = schema
@@ -433,7 +454,7 @@ impl SqliteSink {
             sql.push_str(&format!(" ON CONFLICT({}) DO NOTHING", pk_ident));
         }
 
-        sqlx::query_with(&sql, args).execute(&self.pool).await?;
+        sqlx::query_with(&sql, args).execute(&mut **tx).await?;
 
         tracing::debug!(
             sink = %self.label,
@@ -446,7 +467,12 @@ impl SqliteSink {
         Ok(())
     }
 
-    async fn handle_erc20(&self, env: &Envelope, event: &Erc20Transfer) -> Result<()> {
+    async fn handle_erc20(
+        &self,
+        tx: &mut Transaction<'_, Sqlite>,
+        env: &Envelope,
+        event: &Erc20Transfer,
+    ) -> Result<()> {
         let contract = felt_to_padded_hex(&event.contract);
         let from = felt_to_padded_hex(&event.from);
         let to = felt_to_padded_hex(&event.to);
@@ -464,13 +490,18 @@ impl SqliteSink {
         .bind(from)
         .bind(to)
         .bind(amount)
-        .execute(&self.pool)
+        .execute(&mut **tx)
         .await?;
 
         Ok(())
     }
 
-    async fn handle_erc721(&self, env: &Envelope, event: &Erc721Transfer) -> Result<()> {
+    async fn handle_erc721(
+        &self,
+        tx: &mut Transaction<'_, Sqlite>,
+        env: &Envelope,
+        event: &Erc721Transfer,
+    ) -> Result<()> {
         let contract = felt_to_padded_hex(&event.contract);
         let from = felt_to_padded_hex(&event.from);
         let to = felt_to_padded_hex(&event.to);
@@ -488,7 +519,7 @@ impl SqliteSink {
         .bind(from)
         .bind(to)
         .bind(token_id)
-        .execute(&self.pool)
+        .execute(&mut **tx)
         .await?;
 
         Ok(())
@@ -502,25 +533,27 @@ impl Sink for SqliteSink {
     }
 
     async fn handle_batch(&self, batch: Batch) -> Result<()> {
+        let mut tx = self.pool.begin().await?;
         for env in &batch.items {
             if env.type_id == DeclareTableV1::TYPE_ID {
                 if let Some(event) = env.downcast::<DeclareTableV1>() {
-                    self.handle_declare(env, event).await?;
+                    self.handle_declare(&mut tx, env, event).await?;
                 }
             } else if env.type_id == UpdateRecordFieldsV1::TYPE_ID {
                 if let Some(event) = env.downcast::<UpdateRecordFieldsV1>() {
-                    self.handle_update_record(env, event).await?;
+                    self.handle_update_record(&mut tx, env, event).await?;
                 }
             } else if env.type_id == Erc20Transfer::TYPE_ID {
                 if let Some(event) = env.downcast::<Erc20Transfer>() {
-                    self.handle_erc20(env, event).await?;
+                    self.handle_erc20(&mut tx, env, event).await?;
                 }
             } else if env.type_id == Erc721Transfer::TYPE_ID {
                 if let Some(event) = env.downcast::<Erc721Transfer>() {
-                    self.handle_erc721(env, event).await?;
+                    self.handle_erc721(&mut tx, env, event).await?;
                 }
             }
         }
+        tx.commit().await?;
         tracing::info!(sink = %self.label, processed = batch.items.len(), "sqlite sink processed batch");
         Ok(())
     }
diff --git a/crates/types/dojo-types-manager/src/lib.rs b/crates/types/dojo-types-manager/src/lib.rs
index 30c2fa6..818ba9e 100644
--- a/crates/types/dojo-types-manager/src/lib.rs
+++ b/crates/types/dojo-types-manager/src/lib.rs
@@ -9,7 +9,7 @@ use std::collections::HashMap;
 use std::fs;
 
 use std::ops::Deref;
-use std::path::{Path, PathBuf};
+use std::path::PathBuf;
 use std::sync::RwLock;
 use thiserror::Error;
 
@@ -195,7 +195,7 @@ pub struct JsonStore {
 }
 
 impl JsonStore {
-    pub fn new(path: &Path) -> Self {
+    pub fn new(path: &PathBuf) -> Self {
         if !path.exists() {
             std::fs::create_dir_all(path).expect("Unable to create directory");
         }
@@ -243,7 +243,7 @@ impl StoreTrait for JsonStore {
     type Error = serde_json::Error;
     fn dump(&self, table_id: Felt, data: &Self::Table) -> Result<(), Self::Error> {
         let file_path = self.path.join(felt_to_json_file_name(&table_id));
-        std::fs::write(file_path, serde_json::to_string(data).unwrap())
+        std::fs::write(file_path, serde_json::to_string_pretty(data).unwrap())
             .expect("Unable to write file");
         Ok(())
     }
diff --git a/crates/utils/Cargo.toml b/crates/utils/Cargo.toml
new file mode 100644
index 0000000..8afea76
--- /dev/null
+++ b/crates/utils/Cargo.toml
@@ -0,0 +1,19 @@
+[package]
+name = "torii-utils"
+version = "0.1.0"
+edition = "2021"
+description = "Event type manager for Torii"
+authors = ["Torii Runtime <dev@torii.rs>"]
+license = "Apache-2.0"
+
+[dependencies]
+serde.workspace = true
+starknet-types-core.workspace = true
+dojo-introspect-utils.workspace = true
+introspect-types.workspace = true
+introspect-events.workspace = true
+introspect-value.workspace = true
+serde_json.workspace = true
+starknet.workspace = true
+anyhow.workspace = true
+thiserror.workspace = true
diff --git a/crates/utils/src/json.rs b/crates/utils/src/json.rs
new file mode 100644
index 0000000..61b7a98
--- /dev/null
+++ b/crates/utils/src/json.rs
@@ -0,0 +1,21 @@
+use std::{fs, path::PathBuf};
+
+use serde::Deserialize;
+use thiserror::Error;
+
+#[derive(Debug, Error)]
+pub enum JsonFsErrors {
+    #[error("IO Error: {0}")]
+    IoError(#[from] std::io::Error),
+    #[error("JSON Deserialize Error: {0}")]
+    JsonDeserializeError(#[from] serde_json::Error),
+}
+
+pub fn read_json_file<T>(path: &PathBuf) -> Result<T, JsonFsErrors>
+where
+    T: for<'de> Deserialize<'de>,
+{
+    let data = fs::read_to_string(path)?;
+    let value = serde_json::from_str(&data)?;
+    Ok(value)
+}
diff --git a/crates/utils/src/lib.rs b/crates/utils/src/lib.rs
new file mode 100644
index 0000000..7fd6688
--- /dev/null
+++ b/crates/utils/src/lib.rs
@@ -0,0 +1,2 @@
+mod json;
+pub use json::{read_json_file, JsonFsErrors};
diff --git a/package-lock.json b/package-lock.json
new file mode 100644
index 0000000..aed9d73
--- /dev/null
+++ b/package-lock.json
@@ -0,0 +1,1466 @@
+{
+  "name": "torii-core",
+  "lockfileVersion": 3,
+  "requires": true,
+  "packages": {
+    "": {
+      "dependencies": {
+        "camelcase": "^8.0.0",
+        "case": "^1.6.3",
+        "command-line-args": "^6.0.1",
+        "dotenv": "^16.4.5",
+        "js-toml": "^1.0.1",
+        "pascal-case": "^3.1.2",
+        "requirejs": "^2.3.7",
+        "smol-toml": "^1.4.1",
+        "starknet": "^8.5.3",
+        "toml": "^3.0.0",
+        "web3-eth-accounts": "^4.3.1",
+        "yargs": "^18.0.0"
+      }
+    },
+    "node_modules/@babel/runtime-corejs3": {
+      "version": "7.28.4",
+      "resolved": "https://registry.npmjs.org/@babel/runtime-corejs3/-/runtime-corejs3-7.28.4.tgz",
+      "integrity": "sha512-h7iEYiW4HebClDEhtvFObtPmIvrd1SSfpI9EhOeKk4CtIK/ngBWFpuhCzhdmRKtg71ylcue+9I6dv54XYO1epQ==",
+      "license": "MIT",
+      "dependencies": {
+        "core-js-pure": "^3.43.0"
+      },
+      "engines": {
+        "node": ">=6.9.0"
+      }
+    },
+    "node_modules/@chevrotain/cst-dts-gen": {
+      "version": "11.0.3",
+      "resolved": "https://registry.npmjs.org/@chevrotain/cst-dts-gen/-/cst-dts-gen-11.0.3.tgz",
+      "integrity": "sha512-BvIKpRLeS/8UbfxXxgC33xOumsacaeCKAjAeLyOn7Pcp95HiRbrpl14S+9vaZLolnbssPIUuiUd8IvgkRyt6NQ==",
+      "license": "Apache-2.0",
+      "dependencies": {
+        "@chevrotain/gast": "11.0.3",
+        "@chevrotain/types": "11.0.3",
+        "lodash-es": "4.17.21"
+      }
+    },
+    "node_modules/@chevrotain/gast": {
+      "version": "11.0.3",
+      "resolved": "https://registry.npmjs.org/@chevrotain/gast/-/gast-11.0.3.tgz",
+      "integrity": "sha512-+qNfcoNk70PyS/uxmj3li5NiECO+2YKZZQMbmjTqRI3Qchu8Hig/Q9vgkHpI3alNjr7M+a2St5pw5w5F6NL5/Q==",
+      "license": "Apache-2.0",
+      "dependencies": {
+        "@chevrotain/types": "11.0.3",
+        "lodash-es": "4.17.21"
+      }
+    },
+    "node_modules/@chevrotain/regexp-to-ast": {
+      "version": "11.0.3",
+      "resolved": "https://registry.npmjs.org/@chevrotain/regexp-to-ast/-/regexp-to-ast-11.0.3.tgz",
+      "integrity": "sha512-1fMHaBZxLFvWI067AVbGJav1eRY7N8DDvYCTwGBiE/ytKBgP8azTdgyrKyWZ9Mfh09eHWb5PgTSO8wi7U824RA==",
+      "license": "Apache-2.0"
+    },
+    "node_modules/@chevrotain/types": {
+      "version": "11.0.3",
+      "resolved": "https://registry.npmjs.org/@chevrotain/types/-/types-11.0.3.tgz",
+      "integrity": "sha512-gsiM3G8b58kZC2HaWR50gu6Y1440cHiJ+i3JUvcp/35JchYejb2+5MVeJK0iKThYpAa/P2PYFV4hoi44HD+aHQ==",
+      "license": "Apache-2.0"
+    },
+    "node_modules/@chevrotain/utils": {
+      "version": "11.0.3",
+      "resolved": "https://registry.npmjs.org/@chevrotain/utils/-/utils-11.0.3.tgz",
+      "integrity": "sha512-YslZMgtJUyuMbZ+aKvfF3x1f5liK4mWNxghFRv7jqRR9C3R3fAOGTTKvxXDa2Y1s9zSbcpuO0cAxDYsc9SrXoQ==",
+      "license": "Apache-2.0"
+    },
+    "node_modules/@ethereumjs/rlp": {
+      "version": "4.0.1",
+      "resolved": "https://registry.npmjs.org/@ethereumjs/rlp/-/rlp-4.0.1.tgz",
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+      "license": "MPL-2.0",
+      "bin": {
+        "rlp": "bin/rlp"
+      },
+      "engines": {
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+      }
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+      "license": "MIT",
+      "dependencies": {
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+      },
+      "engines": {
+        "node": "^14.21.3 || >=16"
+      },
+      "funding": {
+        "url": "https://paulmillr.com/funding/"
+      }
+    },
+    "node_modules/@noble/curves/node_modules/@noble/hashes": {
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+      },
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+      "license": "MIT",
+      "funding": {
+        "url": "https://paulmillr.com/funding/"
+      }
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+    "node_modules/@scure/bip32": {
+      "version": "1.4.0",
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+      "dependencies": {
+        "@noble/curves": "~1.4.0",
+        "@noble/hashes": "~1.4.0",
+        "@scure/base": "~1.1.6"
+      },
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+        "url": "https://paulmillr.com/funding/"
+      }
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+      "funding": {
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+      }
+    },
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+      "dependencies": {
+        "@noble/hashes": "~1.4.0",
+        "@scure/base": "~1.1.6"
+      },
+      "funding": {
+        "url": "https://paulmillr.com/funding/"
+      }
+    },
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+      },
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+      }
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+      "license": "MIT",
+      "funding": {
+        "url": "https://paulmillr.com/funding/"
+      }
+    },
+    "node_modules/@scure/starknet": {
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+      "resolved": "https://registry.npmjs.org/@scure/starknet/-/starknet-1.1.0.tgz",
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+      "dependencies": {
+        "@noble/curves": "~1.7.0",
+        "@noble/hashes": "~1.6.0"
+      },
+      "funding": {
+        "url": "https://paulmillr.com/funding/"
+      }
+    },
+    "node_modules/@starknet-io/starknet-types-08": {
+      "name": "@starknet-io/types-js",
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+      "license": "MIT"
+    },
+    "node_modules/@starknet-io/starknet-types-09": {
+      "name": "@starknet-io/types-js",
+      "version": "0.9.2",
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+      "license": "MIT"
+    },
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+      "resolved": "https://registry.npmjs.org/abi-wan-kanabi/-/abi-wan-kanabi-2.2.4.tgz",
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+      "dependencies": {
+        "ansicolors": "^0.3.2",
+        "cardinal": "^2.1.1",
+        "fs-extra": "^10.0.0",
+        "yargs": "^17.7.2"
+      },
+      "bin": {
+        "generate": "dist/generate.js"
+      }
+    },
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+      "engines": {
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+      "dependencies": {
+        "color-convert": "^2.0.1"
+      },
+      "engines": {
+        "node": ">=8"
+      },
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+        "url": "https://github.com/chalk/ansi-styles?sponsor=1"
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+      "dependencies": {
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+        "strip-ansi": "^6.0.1",
+        "wrap-ansi": "^7.0.0"
+      },
+      "engines": {
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+      "license": "MIT"
+    },
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+      "license": "MIT",
+      "dependencies": {
+        "emoji-regex": "^8.0.0",
+        "is-fullwidth-code-point": "^3.0.0",
+        "strip-ansi": "^6.0.1"
+      },
+      "engines": {
+        "node": ">=8"
+      }
+    },
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+      "license": "MIT",
+      "dependencies": {
+        "ansi-regex": "^5.0.1"
+      },
+      "engines": {
+        "node": ">=8"
+      }
+    },
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+        "@noble/hashes": "~1.6.0",
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+        "@starknet-io/starknet-types-09": "npm:@starknet-io/types-js@~0.9.1",
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+      },
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+      },
+      "funding": {
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+    },
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+      "license": "MIT",
+      "dependencies": {
+        "inherits": "^2.0.3",
+        "is-arguments": "^1.0.4",
+        "is-generator-function": "^1.0.7",
+        "is-typed-array": "^1.1.3",
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+      }
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+      },
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+        "npm": ">=6.12.0"
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+    },
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+      "license": "LGPL-3.0",
+      "dependencies": {
+        "@ethereumjs/rlp": "^4.0.1",
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+        "ethereum-cryptography": "^2.0.0",
+        "web3-errors": "^1.3.1",
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+      },
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+        "node": ">=14",
+        "npm": ">=6.12.0"
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+      "engines": {
+        "node": ">=14",
+        "npm": ">=6.12.0"
+      }
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+        "eventemitter3": "^5.0.1",
+        "web3-errors": "^1.3.1",
+        "web3-types": "^1.10.0",
+        "web3-validator": "^2.0.6"
+      },
+      "engines": {
+        "node": ">=14",
+        "npm": ">=6.12.0"
+      }
+    },
+    "node_modules/web3-validator": {
+      "version": "2.0.6",
+      "resolved": "https://registry.npmjs.org/web3-validator/-/web3-validator-2.0.6.tgz",
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+      "license": "LGPL-3.0",
+      "dependencies": {
+        "ethereum-cryptography": "^2.0.0",
+        "util": "^0.12.5",
+        "web3-errors": "^1.2.0",
+        "web3-types": "^1.6.0",
+        "zod": "^3.21.4"
+      },
+      "engines": {
+        "node": ">=14",
+        "npm": ">=6.12.0"
+      }
+    },
+    "node_modules/which-typed-array": {
+      "version": "1.1.19",
+      "resolved": "https://registry.npmjs.org/which-typed-array/-/which-typed-array-1.1.19.tgz",
+      "integrity": "sha512-rEvr90Bck4WZt9HHFC4DJMsjvu7x+r6bImz0/BrbWb7A2djJ8hnZMrWnHo9F8ssv0OMErasDhftrfROTyqSDrw==",
+      "license": "MIT",
+      "dependencies": {
+        "available-typed-arrays": "^1.0.7",
+        "call-bind": "^1.0.8",
+        "call-bound": "^1.0.4",
+        "for-each": "^0.3.5",
+        "get-proto": "^1.0.1",
+        "gopd": "^1.2.0",
+        "has-tostringtag": "^1.0.2"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
+    "node_modules/wrap-ansi": {
+      "version": "9.0.2",
+      "resolved": "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-9.0.2.tgz",
+      "integrity": "sha512-42AtmgqjV+X1VpdOfyTGOYRi0/zsoLqtXQckTmqTeybT+BDIbM/Guxo7x3pE2vtpr1ok6xRqM9OpBe+Jyoqyww==",
+      "license": "MIT",
+      "dependencies": {
+        "ansi-styles": "^6.2.1",
+        "string-width": "^7.0.0",
+        "strip-ansi": "^7.1.0"
+      },
+      "engines": {
+        "node": ">=18"
+      },
+      "funding": {
+        "url": "https://github.com/chalk/wrap-ansi?sponsor=1"
+      }
+    },
+    "node_modules/xregexp": {
+      "version": "5.1.2",
+      "resolved": "https://registry.npmjs.org/xregexp/-/xregexp-5.1.2.tgz",
+      "integrity": "sha512-6hGgEMCGhqCTFEJbqmWrNIPqfpdirdGWkqshu7fFZddmTSfgv5Sn9D2SaKloR79s5VUiUlpwzg3CM3G6D3VIlw==",
+      "license": "MIT",
+      "dependencies": {
+        "@babel/runtime-corejs3": "^7.26.9"
+      }
+    },
+    "node_modules/y18n": {
+      "version": "5.0.8",
+      "resolved": "https://registry.npmjs.org/y18n/-/y18n-5.0.8.tgz",
+      "integrity": "sha512-0pfFzegeDWJHJIAmTLRP2DwHjdF5s7jo9tuztdQxAhINCdvS+3nGINqPd00AphqJR/0LhANUS6/+7SCb98YOfA==",
+      "license": "ISC",
+      "engines": {
+        "node": ">=10"
+      }
+    },
+    "node_modules/yargs": {
+      "version": "18.0.0",
+      "resolved": "https://registry.npmjs.org/yargs/-/yargs-18.0.0.tgz",
+      "integrity": "sha512-4UEqdc2RYGHZc7Doyqkrqiln3p9X2DZVxaGbwhn2pi7MrRagKaOcIKe8L3OxYcbhXLgLFUS3zAYuQjKBQgmuNg==",
+      "license": "MIT",
+      "dependencies": {
+        "cliui": "^9.0.1",
+        "escalade": "^3.1.1",
+        "get-caller-file": "^2.0.5",
+        "string-width": "^7.2.0",
+        "y18n": "^5.0.5",
+        "yargs-parser": "^22.0.0"
+      },
+      "engines": {
+        "node": "^20.19.0 || ^22.12.0 || >=23"
+      }
+    },
+    "node_modules/yargs-parser": {
+      "version": "22.0.0",
+      "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-22.0.0.tgz",
+      "integrity": "sha512-rwu/ClNdSMpkSrUb+d6BRsSkLUq1fmfsY6TOpYzTwvwkg1/NRG85KBy3kq++A8LKQwX6lsu+aWad+2khvuXrqw==",
+      "license": "ISC",
+      "engines": {
+        "node": "^20.19.0 || ^22.12.0 || >=23"
+      }
+    },
+    "node_modules/zod": {
+      "version": "3.25.76",
+      "resolved": "https://registry.npmjs.org/zod/-/zod-3.25.76.tgz",
+      "integrity": "sha512-gzUt/qt81nXsFGKIFcC3YnfEAx5NkunCfnDlvuBSSFS02bcXu4Lmea0AFIUwbLWxWPx3d9p8S5QoaujKcNQxcQ==",
+      "license": "MIT",
+      "funding": {
+        "url": "https://github.com/sponsors/colinhacks"
+      }
+    }
+  }
+}
diff --git a/package.json b/package.json
new file mode 100644
index 0000000..9e8ceb9
--- /dev/null
+++ b/package.json
@@ -0,0 +1,17 @@
+{
+  "dependencies": {
+    "camelcase": "^8.0.0",
+    "case": "^1.6.3",
+    "command-line-args": "^6.0.1",
+    "dotenv": "^16.4.5",
+    "js-toml": "^1.0.1",
+    "pascal-case": "^3.1.2",
+    "requirejs": "^2.3.7",
+    "smol-toml": "^1.4.1",
+    "starknet": "^8.5.3",
+    "toml": "^3.0.0",
+    "web3-eth-accounts": "^4.3.1",
+    "yargs": "^18.0.0"
+  },
+  "type": "module"
+}
diff --git a/scripts/all-contract-events.js b/scripts/all-contract-events.js
new file mode 100644
index 0000000..1ec9bd1
--- /dev/null
+++ b/scripts/all-contract-events.js
@@ -0,0 +1,38 @@
+import { Provider } from "starknet";
+import fs from "fs";
+// const CONTRACT_ADDRESS =
+//   "0x02d26295d6c541d64740e1ae56abc079b82b22c35ab83985ef8bd15dc0f9edfb"; // Replace with your contract address
+const CONTRACT_ADDRESS =
+  "0x8b4838140a3cbd36ebe64d4b5aaf56a30cc3753c928a79338bf56c53f506c5"; //Pistols
+const RPC_URL = "https://starknet-mainnet.public.blastapi.io";
+// const from_block = 1376383;
+const provider = new Provider({ nodeUrl: RPC_URL });
+
+const dirPath = "/home/ben/tc-tests/pistols/events-2";
+const writeToFile = (data, index) => {
+  fs.writeFileSync(
+    `${dirPath}/${index.toString().padStart(4, "0")}.json`,
+    JSON.stringify(data, null, 2)
+  );
+};
+let n = 0;
+let continuation_token = undefined;
+while (true) {
+  const result = await provider.getEvents({
+    continuation_token,
+    address: CONTRACT_ADDRESS,
+    chunk_size: 1024,
+    // from_block: { block_number: from_block },
+  });
+  if (result.events.length) {
+    writeToFile(result, n);
+  }
+  continuation_token = result.continuation_token;
+  console.log(
+    `n: ${n}, continuation_token: ${continuation_token} length: ${result.events.length}`
+  );
+  if (continuation_token === undefined) {
+    break;
+  }
+  n++;
+}
diff --git a/scripts/get-models.js b/scripts/get-models.js
new file mode 100644
index 0000000..8171796
--- /dev/null
+++ b/scripts/get-models.js
@@ -0,0 +1,93 @@
+import { Provider, selector, Contract } from "starknet";
+import fs from "fs";
+import * as path from "path";
+
+export const resolvePath = (rpath) => {
+  return path.resolve(__dirname, rpath);
+};
+const __dirname = process.cwd();
+// const CONTRACT_ADDRESS =
+//   "0x02d26295d6c541d64740e1ae56abc079b82b22c35ab83985ef8bd15dc0f9edfb";
+const CONTRACT_ADDRESS =
+  "0x8b4838140a3cbd36ebe64d4b5aaf56a30cc3753c928a79338bf56c53f506c5"; //Pistols
+const RPC_URL = "https://starknet-mainnet.public.blastapi.io";
+const from_block = 1376382;
+const provider = new Provider({ nodeUrl: RPC_URL });
+const modelRegisteredSelector = selector.getSelector("ModelRegistered");
+const eventRegisteredSelector = selector.getSelector("EventRegistered");
+const modelUpgradedSelector = selector.getSelector("ModelUpgraded");
+const eventUpgradedSelector = selector.getSelector("EventUpgraded");
+const dirPath = resolvePath("/home/ben/tc-tests/pistols/model-contracts");
+
+const writeToFile = (data, index) => {
+  fs.writeFileSync(`${dirPath}/${index}.json`, JSON.stringify(data, null, 2));
+};
+
+const getAllEvents = async (address, keys, block_number) => {
+  let events = [];
+  let continuation_token = undefined;
+  while (true) {
+    const result = await provider.getEvents({
+      address,
+      keys,
+      chunk_size: 1024,
+      continuation_token,
+      from_block: { block_number },
+    });
+    events.push(...result.events);
+    continuation_token = result.continuation_token;
+    if (continuation_token === undefined) {
+      break;
+    }
+  }
+  return events;
+};
+
+const declareEvents = await getAllEvents(
+  CONTRACT_ADDRESS,
+  [[modelRegisteredSelector, eventRegisteredSelector]],
+  from_block
+);
+for (const event of declareEvents) {
+  const [class_hash, address] = event.data;
+  console.log({ class_hash, address });
+  let schema = await provider.callContract({
+    contractAddress: address,
+    entrypoint: "schema",
+  });
+  let use_legacy_storage = true;
+  try {
+    let legacy_result = await provider.callContract({
+      contractAddress: address,
+      entrypoint: "use_legacy_storage",
+    });
+    use_legacy_storage = Boolean(BigInt(legacy_result[0]));
+  } catch (e) {}
+
+  writeToFile({ schema, use_legacy_storage }, address);
+}
+
+const upgradeEvents = await getAllEvents(
+  CONTRACT_ADDRESS,
+  [[modelUpgradedSelector, eventUpgradedSelector]],
+  from_block
+);
+
+for (const event of upgradeEvents) {
+  const [class_hash, address, previous_address] = event.data;
+  console.log({ class_hash, address, previous_address });
+  let schema = await provider.callContract({
+    contractAddress: address,
+    entrypoint: "schema",
+  });
+  let use_legacy_storage = true;
+  try {
+    let legacy_result = await provider.callContract({
+      contractAddress: address,
+      entrypoint: "use_legacy_storage",
+    });
+    console.log(legacy_result);
+  } catch (e) {}
+
+  writeToFile({ schema, use_legacy_storage }, address);
+}
diff --git a/tests/blob-arena.tar.gz b/tests/blob-arena.tar.gz
new file mode 100644
index 0000000..6fbf034
Binary files /dev/null and b/tests/blob-arena.tar.gz differ
diff --git a/tests/json_test/Cargo.toml b/tests/json_test/Cargo.toml
new file mode 100644
index 0000000..28852e3
--- /dev/null
+++ b/tests/json_test/Cargo.toml
@@ -0,0 +1,19 @@
+[package]
+name = "torii-json-test"
+version = "0.1.0"
+edition = "2021"
+description = "Introspect decoder for Torii runtime"
+authors = ["Torii Runtime <dev@torii.rs>"]
+license = "Apache-2.0"
+
+[dependencies]
+anyhow.workspace = true
+dojo-introspect-events.workspace = true
+dojo-types-manager.workspace = true
+resolve-path.workspace = true
+starknet.workspace = true
+tokio.workspace = true
+torii-core.workspace = true
+torii-decoder-introspect.workspace = true
+torii-sink-json.workspace = true
+torii-test-utils.workspace = true
diff --git a/tests/json_test/src/main.rs b/tests/json_test/src/main.rs
new file mode 100644
index 0000000..737a898
--- /dev/null
+++ b/tests/json_test/src/main.rs
@@ -0,0 +1,117 @@
+use anyhow::Error;
+use dojo_introspect_events::{
+    DojoEvent, EventEmitted, EventRegistered, EventUpgraded, ModelRegistered, ModelUpgraded,
+    StoreDelRecord, StoreSetRecord, StoreUpdateMember, StoreUpdateRecord,
+};
+use dojo_types_manager::{DojoManager, JsonStore};
+use resolve_path::PathResolveExt;
+use starknet::core::types::EmittedEvent;
+use std::path::PathBuf;
+use std::time::Instant;
+use torii_core::Decoder;
+use torii_decoder_introspect::IntrospectDecoder;
+use torii_sink_json::JsonSink;
+use torii_test_utils::{EventIterator, FakeProvider};
+const DATA_PATH: &str = "~/tc-tests/pistols";
+
+fn get_event_type(event: &EmittedEvent) -> (String, String) {
+    let selector = event.keys[0];
+    if selector == ModelRegistered::SELECTOR {
+        ("ModelRegistered".to_string(), "Mr".to_string())
+    } else if selector == ModelUpgraded::SELECTOR {
+        ("ModelUpgraded".to_string(), "Mu".to_string())
+    } else if selector == EventRegistered::SELECTOR {
+        ("EventRegistered".to_string(), "Er".to_string())
+    } else if selector == EventUpgraded::SELECTOR {
+        ("EventUpgraded".to_string(), "Eu".to_string())
+    } else if selector == StoreSetRecord::SELECTOR {
+        ("StoreSetRecord".to_string(), "Rs".to_string())
+    } else if selector == StoreUpdateRecord::SELECTOR {
+        ("StoreUpdateRecord".to_string(), "Ru".to_string())
+    } else if selector == StoreUpdateMember::SELECTOR {
+        ("StoreUpdateMember".to_string(), "Fu".to_string())
+    } else if selector == StoreDelRecord::SELECTOR {
+        ("StoreDelRecord".to_string(), "Rd".to_string())
+    } else if selector == EventEmitted::SELECTOR {
+        ("EventEmitted".to_string(), "E".to_string())
+    } else {
+        ("Unknown".to_string(), "Un".to_string())
+    }
+}
+
+#[tokio::main]
+async fn main() {
+    let data_path = PathBuf::from(DATA_PATH).resolve().into_owned();
+    let manager_path = data_path.join("manager");
+    let model_contracts_path = data_path.join("model-contracts");
+    let json_sink_path = data_path.join("json-sink");
+    let events_path = data_path.join("events");
+    println!("Manager Path: {manager_path:#?}");
+    println!("Model Contracts Path: {model_contracts_path:#?}");
+    println!("JSON Sink Path: {json_sink_path:#?}");
+    println!("Events Path: {events_path:#?}");
+    let manager = DojoManager::new(JsonStore::new(&manager_path)).unwrap();
+    let fetcher = FakeProvider {
+        file_path: model_contracts_path,
+    };
+    let decoder = IntrospectDecoder {
+        filter: Default::default(),
+        manager,
+        fetcher,
+    };
+    let sink = JsonSink::new(json_sink_path, "json-sink".to_string()).unwrap();
+
+    let mut decoder_errors: Vec<Error> = vec![];
+    let mut sink_errors: Vec<Error> = vec![];
+
+    let events = EventIterator::new(events_path);
+    let now = Instant::now();
+
+    for event in events {
+        let (name, _) = get_event_type(&event);
+        if name == "Unknown" {
+            continue;
+        }
+        match decoder.decode(&event).await {
+            Ok(envelope) => match sink.handle_envelope(&envelope) {
+                Err(err) => {
+                    println!("\nError Handling event: {name:#?}");
+                    println!("Error: {err:#?}");
+                    sink_errors.push(err);
+                }
+                _ => (),
+            },
+            Err(err) => {
+                println!("\nError Decoding event: {name:#?}");
+                println!("Error: {:#?}", &err);
+                println!("---------------");
+                println!("{event:#?}");
+                println!("---------------");
+                decoder_errors.push(err);
+            }
+        }
+    }
+    let elapsed = now.elapsed();
+    println!(
+        "\nElapsed: {elapsed:.2?} decoder errors: {} sink errors: {}",
+        decoder_errors.len(),
+        sink_errors.len()
+    );
+    println!("Decoder Errors:");
+    println!("{:#?}", decoder_errors);
+    println!("Sink Errors:");
+    println!("{:#?}", sink_errors);
+}
+
+// fn main() {
+//     let contracts_path =
+//         canonicalize(PathBuf::from("./test-data/blob-arena/model-contracts")).unwrap();
+//     let schema = read_model_schema(
+//         &contracts_path,
+//         Felt::from_hex_unchecked(
+//             "0x39da8317e138fead2fe5a894ab103cd73a9173707183a8b7c404533ac4d301d",
+//         ),
+//     )
+//     .unwrap();
+//     println!("{schema:#?}");
+// }
diff --git a/tests/pistols.tar.gz b/tests/pistols.tar.gz
new file mode 100644
index 0000000..92461b0
Binary files /dev/null and b/tests/pistols.tar.gz differ
diff --git a/tests/sqlite_test/Cargo.toml b/tests/sqlite_test/Cargo.toml
new file mode 100644
index 0000000..c262e57
--- /dev/null
+++ b/tests/sqlite_test/Cargo.toml
@@ -0,0 +1,20 @@
+[package]
+name = "torii-sqlite-test"
+version = "0.1.0"
+edition = "2021"
+description = "Introspect decoder for Torii runtime"
+authors = ["Torii Runtime <dev@torii.rs>"]
+license = "Apache-2.0"
+
+[dependencies]
+anyhow.workspace = true
+dojo-introspect-events.workspace = true
+dojo-types-manager.workspace = true
+resolve-path.workspace = true
+starknet.workspace = true
+starknet-types-core.workspace = true
+tokio.workspace = true
+torii-core.workspace = true
+torii-decoder-introspect.workspace = true
+torii-test-utils.workspace = true
+torii-sink-sqlite.workspace = true
diff --git a/tests/sqlite_test/src/main.rs b/tests/sqlite_test/src/main.rs
new file mode 100644
index 0000000..f9fcb4b
--- /dev/null
+++ b/tests/sqlite_test/src/main.rs
@@ -0,0 +1,144 @@
+use anyhow::Error;
+use dojo_introspect_events::{
+    DojoEvent, EventEmitted, EventRegistered, EventUpgraded, ModelRegistered, ModelUpgraded,
+    StoreDelRecord, StoreSetRecord, StoreUpdateMember, StoreUpdateRecord,
+};
+use dojo_types_manager::{DojoManager, JsonStore};
+use resolve_path::PathResolveExt;
+use starknet_types_core::felt::Felt;
+use std::time::Instant;
+use std::{collections::HashMap, path::PathBuf};
+use torii_core::{Batch, Decoder, Sink};
+use torii_decoder_introspect::IntrospectDecoder;
+use torii_sink_sqlite::SqliteSink;
+use torii_test_utils::{EventIterator, FakeProvider};
+const DATA_PATH: &str = "~/tc-tests/blob-arena";
+
+fn get_event_type(event: &starknet::core::types::EmittedEvent) -> (String, String) {
+    let selector = event.keys[0];
+    if selector == ModelRegistered::SELECTOR {
+        ("ModelRegistered".to_string(), "Mr".to_string())
+    } else if selector == ModelUpgraded::SELECTOR {
+        ("ModelUpgraded".to_string(), "Mu".to_string())
+    } else if selector == EventRegistered::SELECTOR {
+        ("EventRegistered".to_string(), "Er".to_string())
+    } else if selector == EventUpgraded::SELECTOR {
+        ("EventUpgraded".to_string(), "Eu".to_string())
+    } else if selector == StoreSetRecord::SELECTOR {
+        ("StoreSetRecord".to_string(), "Rs".to_string())
+    } else if selector == StoreUpdateRecord::SELECTOR {
+        ("StoreUpdateRecord".to_string(), "Ru".to_string())
+    } else if selector == StoreUpdateMember::SELECTOR {
+        ("StoreUpdateMember".to_string(), "Fu".to_string())
+    } else if selector == StoreDelRecord::SELECTOR {
+        ("StoreDelRecord".to_string(), "Rd".to_string())
+    } else if selector == EventEmitted::SELECTOR {
+        ("EventEmitted".to_string(), "E".to_string())
+    } else {
+        ("Unknown".to_string(), "Un".to_string())
+    }
+}
+
+#[tokio::main]
+async fn main() {
+    let data_path = PathBuf::from(DATA_PATH).resolve().into_owned();
+    let manager_path = data_path.join("manager");
+    let model_contracts_path = data_path.join("model-contracts");
+    let sql_sink_path = data_path.join("sql-sink");
+    let events_path = data_path.join("events");
+    println!("Manager Path: {manager_path:#?}");
+    println!("Model Contracts Path: {model_contracts_path:#?}");
+    println!("SQL Sink Path: {sql_sink_path:#?}");
+    println!("Events Path: {events_path:#?}");
+    let manager = DojoManager::new(JsonStore::new(&manager_path)).unwrap();
+    let fetcher = FakeProvider {
+        file_path: model_contracts_path,
+    };
+    let decoder = IntrospectDecoder {
+        filter: Default::default(),
+        manager,
+        fetcher,
+    };
+    let mut contract_labels: HashMap<Felt, String> = HashMap::new();
+    contract_labels.insert(
+        Felt::from_hex_unchecked(
+            "0x2d26295d6c541d64740e1ae56abc079b82b22c35ab83985ef8bd15dc0f9edfb",
+        ),
+        "BlobArena".to_string(),
+    );
+    let sink = SqliteSink::connect(
+        "sql-sink".to_string(),
+        &sql_sink_path.into_os_string().to_str().unwrap(),
+        None,
+        contract_labels,
+    )
+    .await
+    .unwrap();
+
+    let mut decoder_errors: Vec<Error> = vec![];
+    let mut sink_errors: Vec<Error> = vec![];
+
+    let mut events = EventIterator::new(events_path);
+    let now = Instant::now();
+    let mut running = true;
+    while running {
+        let mut batch = Vec::new();
+        for _ in 0..10000 {
+            let event = match events.next() {
+                Some(event) => event,
+                None => {
+                    running = false;
+                    break;
+                }
+            };
+            let (name, _) = get_event_type(&event);
+            if name == "Unknown" {
+                continue;
+            }
+            match decoder.decode(&event).await {
+                Ok(envelope) => {
+                    batch.push(envelope);
+                }
+                Err(err) => {
+                    println!("\nError Decoding event: {name:#?}");
+                    println!("Error: {:#?}", &err);
+                    println!("---------------");
+                    println!("{event:#?}");
+                    println!("---------------");
+                    decoder_errors.push(err);
+                }
+            }
+        }
+
+        match sink.handle_batch(Batch { items: batch }).await {
+            Err(err) => {
+                println!("Error: {err:#?}");
+                sink_errors.push(err);
+            }
+            _ => (),
+        }
+    }
+    let elapsed = now.elapsed();
+    println!(
+        "\nElapsed: {elapsed:.2?} decoder errors: {} sink errors: {}",
+        decoder_errors.len(),
+        sink_errors.len()
+    );
+    println!("Decoder Errors:");
+    println!("{:#?}", decoder_errors);
+    println!("Sink Errors:");
+    println!("{:#?}", sink_errors);
+}
+
+// fn main() {
+//     let contracts_path =
+//         canonicalize(PathBuf::from("./test-data/blob-arena/model-contracts")).unwrap();
+//     let schema = read_model_schema(
+//         &contracts_path,
+//         Felt::from_hex_unchecked(
+//             "0x39da8317e138fead2fe5a894ab103cd73a9173707183a8b7c404533ac4d301d",
+//         ),
+//     )
+//     .unwrap();
+//     println!("{schema:#?}");
+// }
diff --git a/tests/test_utils/Cargo.toml b/tests/test_utils/Cargo.toml
new file mode 100644
index 0000000..b44b8b7
--- /dev/null
+++ b/tests/test_utils/Cargo.toml
@@ -0,0 +1,23 @@
+[package]
+name = "torii-test-utils"
+version = "0.1.0"
+edition = "2021"
+description = "Test utilities for Torii runtime"
+authors = ["Torii Runtime <dev@torii.rs>"]
+license = "Apache-2.0"
+
+[dependencies]
+alphanumeric-sort.workspace = true
+anyhow.workspace = true
+async-trait.workspace = true
+resolve-path.workspace = true
+serde.workspace = true
+serde_json.workspace = true
+starknet.workspace = true
+tracing.workspace = true
+dojo-introspect-types.workspace = true
+dojo-types-manager.workspace = true
+introspect-types.workspace = true
+starknet-types-core.workspace = true
+thiserror.workspace = true
+torii-utils.workspace = true
diff --git a/tests/test_utils/src/event_reader.rs b/tests/test_utils/src/event_reader.rs
new file mode 100644
index 0000000..f234ef0
--- /dev/null
+++ b/tests/test_utils/src/event_reader.rs
@@ -0,0 +1,83 @@
+use serde::Deserialize;
+use starknet::core::types::EmittedEvent;
+use starknet_types_core::felt::Felt;
+use std::collections::VecDeque;
+use std::fs::read_dir;
+use std::path::PathBuf;
+use torii_utils::read_json_file;
+
+#[derive(Deserialize)]
+pub struct Event {
+    block_hash: Felt,
+    block_number: u64,
+    data: Vec<Felt>,
+    from_address: Felt,
+    keys: Vec<Felt>,
+    transaction_hash: Felt,
+}
+
+impl Into<EmittedEvent> for Event {
+    fn into(self) -> EmittedEvent {
+        EmittedEvent {
+            block_hash: Some(self.block_hash),
+            block_number: Some(self.block_number),
+            data: self.data,
+            from_address: self.from_address,
+            keys: self.keys,
+            transaction_hash: self.transaction_hash,
+        }
+    }
+}
+
+#[derive(Deserialize)]
+pub struct EventBatch {
+    #[allow(dead_code)]
+    pub continuation_token: Option<String>,
+    pub events: VecDeque<Event>,
+}
+
+pub struct EventIterator {
+    pub events: VecDeque<Event>,
+    pub files: VecDeque<PathBuf>,
+    #[allow(dead_code)]
+    pub batch: usize,
+    #[allow(dead_code)]
+    pub event: usize,
+}
+
+impl EventIterator {
+    pub fn new(path: PathBuf) -> Self {
+        let path = path;
+        let mut paths = read_dir(&path)
+            .unwrap()
+            .map(|p| p.unwrap().path())
+            .collect::<Vec<_>>();
+        alphanumeric_sort::sort_path_slice(&mut paths);
+
+        Self {
+            events: VecDeque::new(),
+            files: paths.into(),
+            batch: 0,
+            event: 0,
+        }
+    }
+}
+
+impl Iterator for EventIterator {
+    type Item = EmittedEvent;
+
+    fn next(&mut self) -> Option<Self::Item> {
+        self.event += 1;
+        match self.events.pop_front() {
+            Some(event) => Some(event.into()),
+            None => {
+                self.events = read_json_file::<EventBatch>(&self.files.pop_front()?)
+                    .unwrap()
+                    .events;
+                self.batch += 1;
+                self.event = 0;
+                Some(self.events.pop_front()?.into())
+            }
+        }
+    }
+}
diff --git a/tests/test_utils/src/lib.rs b/tests/test_utils/src/lib.rs
new file mode 100644
index 0000000..622e1af
--- /dev/null
+++ b/tests/test_utils/src/lib.rs
@@ -0,0 +1,4 @@
+mod event_reader;
+mod schema_fetcher;
+pub use event_reader::EventIterator;
+pub use schema_fetcher::FakeProvider;
diff --git a/tests/test_utils/src/schema_fetcher.rs b/tests/test_utils/src/schema_fetcher.rs
new file mode 100644
index 0000000..75fbc9c
--- /dev/null
+++ b/tests/test_utils/src/schema_fetcher.rs
@@ -0,0 +1,35 @@
+use anyhow::{Context, Result};
+use async_trait::async_trait;
+use dojo_introspect_types::{DojoSchemaFetcher, DojoTypeDefSerde};
+use introspect_types::StructDef;
+use serde::{Deserialize, Serialize};
+use starknet_types_core::felt::Felt;
+use std::path::PathBuf;
+use torii_utils::read_json_file;
+
+pub struct FakeProvider {
+    pub file_path: PathBuf,
+}
+
+#[derive(Deserialize, Serialize)]
+struct ModelContract {
+    schema: Vec<Felt>,
+    use_legacy_storage: bool,
+}
+
+fn read_model_schema(path: &PathBuf, contract_address: Felt) -> Result<StructDef> {
+    let contract: ModelContract =
+        read_json_file(&path.join(format!("{contract_address:#x}.json"))).unwrap();
+    StructDef::dojo_deserialize(
+        &mut contract.schema.into_iter(),
+        contract.use_legacy_storage,
+    )
+    .context("Failed to deserialize schema")
+}
+
+#[async_trait]
+impl DojoSchemaFetcher for FakeProvider {
+    async fn schema(&self, contract_address: Felt) -> Result<StructDef> {
+        read_model_schema(&self.file_path, contract_address)
+    }
+}