Move resourcePath construction to separate method.

Author: purple4reina

src/trace/span-inferrer.ts

@@ -94,15 +94,7 @@ export class SpanInferrer {
     const options: SpanOptions = {};
     const domain = event.requestContext.domainName || "";
     const path = event.rawPath || event.requestContext.path || event.requestContext.routeKey;
-    var resourcePath = event.rawPath || event.requestContext.resourcePath || event.requestContext.routeKey;
-    if (event.requestContext.routeKey && event.requestContext.routeKey.includes("{")) {
-        // this is a parameterized route
-        try {
-            resourcePath = event.requestContext.routeKey.split(" ")[1];
-        } catch (e) {
-            logDebug("Error parsing routeKey", e as Error);
-        }
-    }
+    const resourcePath = this.getResourcePath(event);
 
     let method;
     if (event.requestContext.httpMethod) {
@@ -531,4 +523,17 @@ export class SpanInferrer {
     };
     return new SpanWrapper(this.traceWrapper.startSpan("aws.eventbridge", options), spanWrapperOptions);
   }
+
+  getResourcePath(event: any): string {
+    const routeKey = event.requestContext.routeKey;
+    if (routeKey && routeKey.includes("{")) {
+      // this is a parameterized route
+      try {
+        return event.requestContext.routeKey.split(" ")[1];
+      } catch (e) {
+        logDebug("Error parsing routeKey", e as Error);
+      }
+    }
+    return event.rawPath || event.requestContext.resourcePath || routeKey;
+  }
 }