Add support for Fastify v3 (#36)

README.md

@@ -9,7 +9,7 @@ Request Tracer - Express & Koa middlewares and Fastify & Hapi plugins for CLS-ba
 
 Automatically generates a UUID V1 value as the id for each request and stores it in `AsyncLocalStorage` (CLS core API, see [this blog post](https://itnext.io/one-node-js-cls-api-to-rule-them-all-1670ac66a9e8)). Optionally, if the request contains `X-Request-Id` header, uses its value instead. Allows to obtain the generated request id anywhere in your routes later and use it for logging or any other purposes.
 
-Tested and works fine with Express v4, Fastify v2, Koa (both v1 and v2), and Hapi v18.
+Tested and works fine with Express v4, Fastify v2 and v3, Koa v1 and v2, and Hapi v18.
 
 ## Supported Node.js versions
 
@@ -129,7 +129,7 @@ async function find (entityId) {
 
 ### Legacy Fastify middleware
 
-There is a connect-style middleware available for Fastify, but it is deprecated and may be removed in one of upcoming releases. If you happen to use it in your application, you should migrate to the Fastify plugin.
+There is a connect-style middleware available for Fastify v2, but it is deprecated and may be removed in one of upcoming releases. If you happen to use it in your application, you should migrate to the Fastify plugin.
 
 ```js
 fastify.use(rTracer.fastifyMiddleware())

package.json

@@ -53,7 +53,8 @@
     "@hapi/hapi": "^19.1.1",
     "coveralls": "^3.1.0",
     "express": "^4.17.1",
-    "fastify": "^2.14.1",
+    "fastify": "^3.2.1",
+    "fastifyv2": "npm:fastify@^2.14.1",
     "jest": "^26.0.1",
     "koa": "^2.12.0",
     "koav1": "npm:koa@^1.7.0",

src/rtracer.js

@@ -70,7 +70,7 @@ const fastifyPlugin = (fastify, options, next) => {
     requestId = requestId || uuidv1()
 
     als.run(requestId, () => {
-      wrapHttpEmitters(request.raw, reply.res)
+      wrapHttpEmitters(request.raw, reply.raw || reply.res)
       done()
     })
   })