fix: Fix for empty route in fastify (#268)

lib/instrumentation-security/hooks/fastify/nr-fastify.js

@@ -10,7 +10,6 @@ const { ATTHERATE, DOUBLE_DOLLAR } = require('../../core/constants');
 const lodash = require('lodash');
 const routeManager = require('../../core/route-manager');
 const semver = require('semver')
-const url = require('url');
 const API = require("../../../nr-security-api");
 const logger = API.getLogger();
 
@@ -119,12 +118,10 @@ function setupExports(original, wrappedExport) {
  */
 function extractParams(shim, req) {
   try {
-    const reqURL = req.url || req.raw.url;
-    const parsedURI = url.parse(reqURL).pathname;
     const transaction = shim.tracer.getTransaction();
     if (transaction) {
       let request = requestManager.getRequestFromId(transaction.id);
-      if (req.params && segment && request) {
+      if (req.params && request) {
         Object.keys(req.params).forEach(function (key) {
           if (req.params[key]) {
             if (!request.parameterMap[key]) {
@@ -144,9 +141,9 @@ function extractParams(shim, req) {
           }
         });
       }
-      let method = request.method.toUpperCase();
-      if (parsedURI && request && requestManager.requestMap[method + ATTHERATE + parsedURI]) {
-        request.uri = parsedURI;
+      const txInfo = lodash.get(req, Object.getOwnPropertySymbols(req).find(symbol => symbol.toString() === 'Symbol(fastify.context)'));
+      if (request && txInfo && txInfo.config && txInfo.config.url) {
+        request.uri = txInfo.config.url;
         requestManager.setRequest(transaction.id, request);
       }
     }