feat: refactor rest express server

Author: tchapacan

.github/workflows/run-tck.yaml

@@ -10,11 +10,13 @@ on:
 env:
   # TODO once we have the TCK for 0.4.0 we will need to look at the branch to decide which TCK version to run.
   # Tag of the TCK
-  TCK_VERSION: 0.3.0.beta3
+  TCK_VERSION: main
   # Tells uv to not need a venv, and instead use system
   UV_SYSTEM_PYTHON: 1
-  # SUT_JSONRPC_URL to use for the TCK and the server agent
-  SUT_JSONRPC_URL: http://localhost:41241
+  # Base URL for the SUT agent
+  SUT_BASE_URL: http://localhost:41241
+  # Base URL for the SUT agent JSON-RPC transport
+  SUT_JSONRPC_URL: http://localhost:41241/a2a/jsonrpc
   # Slow system on CI
   TCK_STREAMING_TIMEOUT: 5.0
 
@@ -58,7 +60,7 @@ jobs:
           npm run tck:sut-agent &
       - name: Wait for SUT to start
         run: |
-          URL="${{ env.SUT_JSONRPC_URL }}/.well-known/agent-card.json"
+          URL="${{ env.SUT_BASE_URL }}/.well-known/agent-card.json"
           EXPECTED_STATUS=200
           TIMEOUT=120
           RETRY_INTERVAL=2
@@ -94,8 +96,9 @@ jobs:
         id: run-tck
         timeout-minutes: 5
         run: |
-          ./run_tck.py --sut-url ${{ env.SUT_JSONRPC_URL }} --category mandatory
+          ./run_tck.py --sut-url ${{ env.SUT_JSONRPC_URL }} --category mandatory --transports jsonrpc,rest
         working-directory: tck/a2a-tck
+
       - name: Stop SUT
         if: always()
         run: |

.gitignore

@@ -179,3 +179,4 @@ testem.log
 # System files
 .DS_Store
 Thumbs.db
+.nyc_output/

package-lock.json

@@ -4,6 +4,7 @@ import { A2ARequestHandler } from '../request_handler/a2a_request_handler.js';
 import { AGENT_CARD_PATH } from '../../constants.js';
 import { jsonErrorHandler, jsonRpcHandler } from './json_rpc_handler.js';
 import { agentCardHandler } from './agent_card_handler.js';
+import { httpRestHandler } from './http_rest_handler.js';
 
 export class A2AExpressApp {
   private requestHandler: A2ARequestHandler;
@@ -40,6 +41,7 @@ export class A2AExpressApp {
 
     router.use(jsonRpcHandler({ requestHandler: this.requestHandler }));
     router.use(`/${agentCardPath}`, agentCardHandler({ agentCardProvider: this.requestHandler }));
+    router.use(httpRestHandler({ requestHandler: this.requestHandler }));
 
     app.use(baseUrl, router);
     return app;