Merge pull request #12998 from Budibase/chore/trace-js

Trace scriptRunner

packages/server/src/utilities/scriptRunner.ts

@@ -1,3 +1,4 @@
+import tracer, { Span } from "dd-trace"
 import env from "../environment"
 import { IsolatedVM } from "../jsRunner/vm"
 
@@ -7,7 +8,11 @@ class ScriptRunner {
   private code: string
   private vm: IsolatedVM
 
+  private tracerSpan: Span
+
   constructor(script: string, context: any, { parseBson = false } = {}) {
+    this.tracerSpan = tracer.startSpan("scriptRunner", { tags: { parseBson } })
+
     this.code = `(() => {${script}})();`
     this.vm = new IsolatedVM({
       memoryLimit: env.JS_RUNNER_MEMORY_LIMIT,
@@ -20,7 +25,15 @@ class ScriptRunner {
   }
 
   execute() {
-    const result = this.vm.execute(this.code)
+    const result = tracer.trace(
+      "scriptRunner.execute",
+      { childOf: this.tracerSpan },
+      () => {
+        const result = this.vm.execute(this.code)
+        return result
+      }
+    )
+    this.tracerSpan.finish()
     return result
   }
 }