Add loadtest HTTP server with WebSocket support #213
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4 tasks
Implement HTTP API server for prism-loadtest with real-time metrics streaming via WebSocket. Includes test executor with concurrent test management, embedded web dashboard, and CORS support. Features: - REST API for test lifecycle (start/stop/status/list) - WebSocket streaming of real-time metrics - Concurrent test execution with unique IDs - Embedded HTML dashboard with live charts - Graceful shutdown handling User request: "implement tests and integration tests for the prism-loadtest binary to validate it's websocket connection and API is working through automated tests that validate the responses of the server under test" Co-Authored-By: Claude <noreply@anthropic.com>
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Changed test ID generation from microsecond to nanosecond timestamps to prevent collisions when tests start concurrently. User request: "are all of these changes actually tested? let's move through the PRs and run local tests to validate the PR, then check the CI and respond to any code review" Co-Authored-By: Claude <noreply@anthropic.com>
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Summary
Features
POST /api/loadtest/start- Start a new load testPOST /api/loadtest/stop/{testId}- Stop a running testGET /api/loadtest/status/{testId}- Get test statusGET /api/loadtest/list- List all testsGET /ws/metrics/{testId}- Stream real-time metricsGET /orGET /dashboard- Embedded HTML interfaceImplementation
cmd/serve.go- CLI command to start serverserver/server.go- HTTP server and API handlers (248 lines)server/executor.go- Test execution engine with WebSocket broadcasting (339 lines)server/dashboard.go- Embedded HTML dashboard with Chart.js (453 lines)Test plan
Stack