handler: support grpc protocol

conformance/pyproject.toml

@@ -9,11 +9,12 @@ dependencies = [
   "anyio>=4.8.0",
   "connect-python",
   "cryptography>=44.0.2",
-  "hypercorn>=0.17.3",
+  "hypercorn",
 ]
 
 [tool.uv.sources]
 connect-python = { path = "../" }
+hypercorn = { git = "https://github.com/tsubakiky/hypercorn" }
 
 [dependency-groups]
 dev = ["mypy>=1.15.0", "pyright>=1.1.398", "ruff>=0.11.2"]

conformance/run-testcase.txt

@@ -1,2 +1 @@
-Connect Unexpected Responses/HTTPVersion:2/TLS:true/client-stream/multiple-responses
-Connect Unexpected Responses/HTTPVersion:2/TLS:false/client-stream/ok-but-no-response
+gRPC Unexpected Requests/HTTPVersion:2/TLS:true/unary/multiple-requests

conformance/server_config.yaml

@@ -4,6 +4,7 @@ features:
     - HTTP_VERSION_2
   protocols:
     - PROTOCOL_CONNECT
+    - PROTOCOL_GRPC
   codecs:
     - CODEC_PROTO
     - CODEC_JSON
@@ -16,7 +17,7 @@ features:
     - STREAM_TYPE_SERVER_STREAM
     - STREAM_TYPE_HALF_DUPLEX_BIDI_STREAM
 
-  supports_trailers: false
+  supports_trailers: true
   supports_tls: true
   supports_tls_client_certs: true
   supports_half_duplex_bidi_over_http1: true

examples/cmd/examples-go/client/main.go

@@ -2,15 +2,18 @@ package main
 
 import (
 	"context"
+	"crypto/tls"
 	"errors"
 	"flag"
 	"fmt"
 	"log"
+	"net"
 	"net/http"
 
 	"connectrpc.com/connect"
 	elizav1 "github.com/gaudiy/connect-python/examples/proto/connectrpc/eliza/v1"
 	"github.com/gaudiy/connect-python/examples/proto/connectrpc/eliza/v1/v1connect"
+	"golang.org/x/net/http2"
 )
 
 type mode int
@@ -94,7 +97,22 @@ func main() {
 }
 
 func runClient() error {
-	client := v1connect.NewElizaServiceClient(http.DefaultClient, "http://localhost:8080/")
+	// Create an HTTP/2 transport that allows unencrypted HTTP/2
+	transport := &http2.Transport{
+		AllowHTTP: true,
+		// Pretend we are dialing TLS but we are not
+		DialTLS: func(network, addr string, cfg *tls.Config) (net.Conn, error) {
+			return net.Dial(network, addr)
+		},
+	}
+
+	// Create an HTTP client with the HTTP/2 transport
+	httpClient := &http.Client{
+		Transport: transport,
+	}
+
+	// Create the ElizaService client with the HTTP/2 client
+	client := v1connect.NewElizaServiceClient(httpClient, "http://localhost:8080/", connect.WithGRPC())
 
 	ctx := context.Background()
 	switch rpcType {

examples/pyproject.toml

@@ -6,11 +6,7 @@ license = { text = "Apache-2.0" }
 authors = [{ name = "tsubakiky", email = "salovers1205@gmail.com" }]
 requires-python = ">=3.13"
 version = "0.1.0"
-dependencies = [
-  "connect-python",
-  "grpcio==1.68.1",
-  "hypercorn[trio,uvloop]>=0.17.3",
-]
+dependencies = ["connect-python", "hypercorn[trio,uvloop]>=0.17.3"]
 
 [tool.uv]
 dev-dependencies = ["mypy>=1.13.0", "pyright>=1.1.390", "ruff>=0.8.2"]

pyproject.toml

@@ -12,6 +12,7 @@ requires-python = ">=3.13"
 dynamic = ["version"]
 dependencies = [
   "anyio>=4.7.0",
+  "googleapis-common-protos>=1.70.0",
   "h2>=4.2.0",
   "httpcore>=1.0.7",
   "protobuf>=5.29.1",