Web Frameworks

One line of middleware turns each incoming request into a root trace, with everything inside nested under it.

Python

# FastAPI / Starlette
app.add_middleware(evalkit.EvalKitMiddleware)              # Starlette: EvalKitStarletteMiddleware
# Flask
evalkit.instrument_flask(app)
# Django — in settings.py MIDDLEWARE add:
#   "evalkit.EvalKitDjangoMiddleware"
# Litestar
app = Litestar(route_handlers=[...], middleware=[evalkit.create_litestar_middleware()])

TypeScript

app.use(evalkit.expressMiddleware());                      // Express
await app.register(evalkit.fastifyPlugin());               // Fastify
app.use(evalkit.koaMiddleware());                           // Koa
app.use(evalkit.honoMiddleware());                           // Hono
await server.register(evalkit.hapiPlugin());                // Hapi
app.useGlobalInterceptors(evalkit.createNestjsInterceptor()); // NestJS
// NestJS also has enableNestjsAutoTrace(app) for full APM — see the TypeScript SDK page.

Support matrix

Language	Frameworks
Python	FastAPI, Starlette, Flask, Django, Litestar
TypeScript	Express, Fastify, Koa, Hono, Hapi, NestJS