feat: Add Google Cloud destination support (#814)

Co-authored-by: google-labs-jules[bot] <161369871+google-labs-jules[bot]@users.noreply.github.com>

Author: yu-iskw

packages/traceloop-sdk/package.json

@@ -75,6 +75,7 @@
     "@traceloop/instrumentation-pinecone": "workspace:*",
     "@traceloop/instrumentation-qdrant": "workspace:*",
     "@traceloop/instrumentation-together": "workspace:*",
+    "@google-cloud/opentelemetry-cloud-trace-exporter": "^1.0.0",
     "@traceloop/instrumentation-vertexai": "workspace:*",
     "@types/nunjucks": "^3.2.6",
     "cross-fetch": "^4.1.0",

packages/traceloop-sdk/src/lib/interfaces/initialize-options.interface.ts

@@ -141,4 +141,10 @@ export interface InitializeOptions {
    * Defaults to the TRACELOOP_EXP_SLUG environment variable.
    */
   experimentSlug?: string;
+
+  /**
+   * The Google Cloud Project ID for sending traces data. Optional.
+   * This is used to configure the Google Cloud Trace Exporter.
+   */
+  gcpProjectId?: string;
 }

packages/traceloop-sdk/src/lib/tracing/index.ts

@@ -2,6 +2,7 @@ import { NodeSDK } from "@opentelemetry/sdk-node";
 import { SpanProcessor } from "@opentelemetry/sdk-trace-node";
 import { context, diag } from "@opentelemetry/api";
 import { OTLPTraceExporter } from "@opentelemetry/exporter-trace-otlp-proto";
+import { TraceExporter as GcpTraceExporter } from "@google-cloud/opentelemetry-cloud-trace-exporter";
 import { Resource } from "@opentelemetry/resources";
 import { ATTR_SERVICE_NAME } from "@opentelemetry/semantic-conventions";
 import { Instrumentation } from "@opentelemetry/instrumentation";
@@ -286,10 +287,12 @@ export const startTracing = (options: InitializeOptions) => {
 
   const traceExporter =
     options.exporter ??
-    new OTLPTraceExporter({
-      url: `${options.baseUrl}/v1/traces`,
-      headers,
-    });
+    (options.gcpProjectId
+      ? new GcpTraceExporter({ projectId: options.gcpProjectId })
+      : new OTLPTraceExporter({
+          url: `${baseUrl}/v1/traces`,
+          headers,
+        }));
 
   _spanProcessor = createSpanProcessor({
     apiKey: options.apiKey,