From 44c34c7826954fae36744d1a56a0714e3bdede98 Mon Sep 17 00:00:00 2001
From: tommasini <46944231+tommasini@users.noreply.github.com>
Date: Thu, 14 Nov 2024 20:06:23 +0000
Subject: [PATCH] wallet_swapAsset v1 (#201)

* wallet_swapAsset v1

* add patterns to the user address and tokens address

* update error codes and remove referral code, also edit the value property to optional and added to the description that defaults to 0

* remove bad identation

* update api spec with the new params accordingly and remove sendTo optional param

* add schema for caip10 addresses and update address format on swap asset rpc method

* update error code

* added more error to the api spec regarding caip 10 addresses

* the swap could not be completed as requested

* add schema for Caip10Address

* remove invalid params error from the api spec

* change the code of swap not available on chain to 36000

* Update openrpc.yaml

Co-authored-by: Alex Donesky <adonesky@gmail.com>

* Update openrpc.yaml

Co-authored-by: Alex Donesky <adonesky@gmail.com>

---------

Co-authored-by: Alex Donesky <adonesky@gmail.com>
---
 openrpc.yaml | 74 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 74 insertions(+)

diff --git a/openrpc.yaml b/openrpc.yaml
index ad18203..7b1652b 100644
--- a/openrpc.yaml
+++ b/openrpc.yaml
@@ -872,6 +872,76 @@ methods:
         result:
           name: eth_unsubscribeExampleResult
           value: true
+  - name: wallet_swapAsset
+    tags:
+      - $ref: '#/components/tags/MetaMask'
+      - $ref: '#/components/tags/Experimental'
+    summary: Allows dApps to request MetaMask to perform a token swap operation.
+    description: >-
+      This method enables dApps to initiate a token swap directly within MetaMask, improving the user experience by streamlining the process of swapping tokens. The method accepts parameters for the source and destination tokens and initiates a token swap operation.
+    params:
+      - name: SwapAssetParameter
+        required: true
+        schema:
+          title: SwapAssetParameter
+          type: object
+          required:
+            - fromToken
+            - toToken
+            - userAddress
+          properties:
+            fromToken:
+              type: array
+              items:
+                type: object
+                required:
+                  - address
+                properties:
+                  address:
+                    type: string
+                    description: The CAIP-10 formatted address of the source token.
+                    $ref: '#/components/schemas/Caip10Address'
+                  value:
+                    type: string
+                    description: (Optional) The amount of the source token to be swapped, in wei, as a hexadecimal string, defaults to 0.
+                    nullable: true
+            toToken:
+              type: object
+              required:
+                - address
+              properties:
+                address:
+                  type: string
+                  description: The CAIP-10 formatted address of the destination token.
+                  $ref: '#/components/schemas/Caip10Address'
+            userAddress:
+              type: string
+              description: The CAIP-10 formatted address of the user performing the swap.
+              $ref: '#/components/schemas/Caip10Address'
+    result:
+      name: SwapAssetResult
+      description: A boolean indicating if the swap was initiated successfully.
+      schema:
+        type: boolean
+    errors:
+      - code: 6000
+        message: "Swap is not available on this chain {{chainName}}"
+      - code: -32600
+        message: "Cross-chain swaps are currently not supported. Both fromToken and toToken must be on the same blockchain."
+    examples:
+      - name: wallet_swapAsset example
+        params:
+          - name: SwapAssetParameter
+            value:
+              from:
+                - tokenAddress: '0x1234567890abcdefABCDEF1234567890ABCDEF'
+                  value: '0xDE0B6B3A7640000'
+              to:
+                tokenAddress: '0xabcdef1234567890ABCDEF1234567890abcdef'
+              userAddress: '0x0000000000000000000000000000000000000000'
+        result:
+          name: wallet_swapAssetExampleResult
+          value: true
 components:
   schemas:
     TypedData:
@@ -1057,6 +1127,10 @@ components:
       type: array
       items:
         $ref: '#/components/schemas/Permission'
+    Caip10Address:
+      title: Caip10Address
+      type: string
+      description: CAIP-10 defines a way to identify an account/address in any blockchain.
   tags:
     MetaMask:
       name: MetaMask