feat: Add finer Sentry HTTP Tracing (#237)

packages/bundler-plugin-core/src/utils/Output.ts

@@ -239,7 +239,7 @@ class Output {
               scope: this.sentryScope,
               parentSpan: outputWriteSpan,
             },
-            async () => {
+            async (getPreSignedURLSpan) => {
               let url = "";
               try {
                 url = await getPreSignedURL({
@@ -249,6 +249,8 @@ class Output {
                   oidc: this.oidc,
                   retryCount: this.retryCount,
                   serviceParams: provider,
+                  sentryScope: this.sentryScope,
+                  sentrySpan: getPreSignedURLSpan,
                 });
               } catch (error) {
                 if (this.sentryClient && this.sentryScope) {
@@ -291,13 +293,15 @@ class Output {
               scope: this.sentryScope,
               parentSpan: outputWriteSpan,
             },
-            async () => {
+            async (uploadStatsSpan) => {
               try {
                 await uploadStats({
                   preSignedUrl: presignedURL,
                   bundleName: this.bundleName,
                   message: this.bundleStatsToJson(),
-                  retryCount: this?.retryCount,
+                  retryCount: this.retryCount,
+                  sentryScope: this.sentryScope,
+                  sentrySpan: uploadStatsSpan,
                 });
               } catch (error) {
                 // this is being set as an error because this could not be caused by a user error

packages/bundler-plugin-core/src/utils/getPreSignedURL.ts

@@ -1,4 +1,11 @@
 import * as Core from "@actions/core";
+import {
+  spanToTraceHeader,
+  spanToBaggageHeader,
+  startSpan,
+  type Scope,
+  type Span,
+} from "@sentry/core";
 import { z } from "zod";
 import { FailedFetchError } from "../errors/FailedFetchError.ts";
 import { UploadLimitReachedError } from "../errors/UploadLimitReachedError.ts";
@@ -10,6 +17,7 @@ import { findGitService } from "./findGitService.ts";
 import { UndefinedGitServiceError } from "../errors/UndefinedGitServiceError.ts";
 import { FailedOIDCFetchError } from "../errors/FailedOIDCFetchError.ts";
 import { BadOIDCServiceError } from "../errors/BadOIDCServiceError.ts";
+import { DEFAULT_API_URL } from "./normalizeOptions.ts";
 
 interface GetPreSignedURLArgs {
   apiUrl: string;
@@ -21,6 +29,8 @@ interface GetPreSignedURLArgs {
     useGitHubOIDC: boolean;
     gitHubOIDCTokenAudience: string;
   };
+  sentryScope?: Scope;
+  sentrySpan?: Span;
 }
 
 type RequestBody = Record<string, string | null | undefined>;
@@ -38,6 +48,8 @@ export const getPreSignedURL = async ({
   retryCount,
   gitService,
   oidc,
+  sentryScope,
+  sentrySpan,
 }: GetPreSignedURLArgs) => {
   const headers = new Headers({
     "Content-Type": "application/json",
@@ -84,22 +96,85 @@ export const getPreSignedURL = async ({
     }
   }
 
+  // Add Sentry headers if the API URL is the default i.e. Codecov itself
+  if (sentrySpan && apiUrl === DEFAULT_API_URL) {
+    // Create `sentry-trace` header
+    const sentryTraceHeader = spanToTraceHeader(sentrySpan);
+
+    // Create `baggage` header
+    const sentryBaggageHeader = spanToBaggageHeader(sentrySpan);
+
+    if (sentryTraceHeader && sentryBaggageHeader) {
+      headers.set("sentry-trace", sentryTraceHeader);
+      headers.set("baggage", sentryBaggageHeader);
+    }
+  }
+
   let response: Response;
   try {
-    const body = preProcessBody(requestBody);
-    response = await fetchWithRetry({
-      retryCount,
-      url: `${apiUrl}${API_ENDPOINT}`,
-      name: "`get-pre-signed-url`",
-      requestData: {
-        method: "POST",
-        headers: headers,
-        body: JSON.stringify(body),
+    response = await startSpan(
+      {
+        name: "Fetching Pre-Signed URL",
+        op: "http.client",
+        scope: sentryScope,
+        parentSpan: sentrySpan,
       },
-    });
+      async (getPreSignedURLSpan) => {
+        let wrappedResponse: Response;
+        const HTTP_METHOD = "POST";
+        const URL = `${apiUrl}${API_ENDPOINT}`;
+
+        if (getPreSignedURLSpan) {
+          getPreSignedURLSpan.setAttribute("http.request.method", HTTP_METHOD);
+        }
+
+        // we only want to set the URL attribute if the API URL is the default i.e. Codecov itself
+        if (getPreSignedURLSpan && apiUrl === DEFAULT_API_URL) {
+          getPreSignedURLSpan.setAttribute("http.request.url", URL);
+        }
+
+        try {
+          const body = preProcessBody(requestBody);
+          wrappedResponse = await fetchWithRetry({
+            retryCount,
+            url: URL,
+            name: "`get-pre-signed-url`",
+            requestData: {
+              method: HTTP_METHOD,
+              headers: headers,
+              body: JSON.stringify(body),
+            },
+          });
+        } catch (e) {
+          red("Failed to fetch pre-signed URL");
+          throw new FailedFetchError("Failed to fetch pre-signed URL", {
+            cause: e,
+          });
+        }
+
+        // Add attributes only if the span is present
+        if (getPreSignedURLSpan) {
+          // Set attributes for the response
+          getPreSignedURLSpan.setAttribute(
+            "http.response.status_code",
+            wrappedResponse.status,
+          );
+          getPreSignedURLSpan.setAttribute(
+            "http.response_content_length",
+            Number(wrappedResponse.headers.get("content-length")),
+          );
+          getPreSignedURLSpan.setAttribute(
+            "http.response.status_text",
+            wrappedResponse.statusText,
+          );
+        }
+
+        return wrappedResponse;
+      },
+    );
   } catch (e) {
-    red("Failed to fetch pre-signed URL");
-    throw new FailedFetchError("Failed to fetch pre-signed URL", { cause: e });
+    // re-throwing the error here
+    throw e;
   }
 
   if (response.status === 429) {

packages/bundler-plugin-core/src/utils/normalizeOptions.ts

@@ -2,6 +2,8 @@ import { z } from "zod";
 import { type Options } from "../types.ts";
 import { red } from "./logging.ts";
 
+export const DEFAULT_API_URL = "https://api.codecov.io";
+
 export type NormalizedOptions = z.infer<
   ReturnType<typeof optionsSchemaFactory>
 > &
@@ -87,7 +89,7 @@ const optionsSchemaFactory = (options: Options) =>
       .url({
         message: `apiUrl: \`${options?.apiUrl}\` is not a valid URL.`,
       })
-      .default("https://api.codecov.io"),
+      .default(DEFAULT_API_URL),
     bundleName: z
       .string({
         invalid_type_error: "`bundleName` must be a string.",

packages/bundler-plugin-core/src/utils/uploadStats.ts

@@ -1,4 +1,5 @@
 import { ReadableStream, TextEncoderStream } from "node:stream/web";
+import { startSpan, type Scope, type Span } from "@sentry/core";
 
 import { FailedUploadError } from "../errors/FailedUploadError";
 import { green, red } from "./logging";
@@ -11,13 +12,17 @@ interface UploadStatsArgs {
   bundleName: string;
   preSignedUrl: string;
   retryCount?: number;
+  sentryScope?: Scope;
+  sentrySpan?: Span;
 }
 
 export async function uploadStats({
   message,
   bundleName,
   preSignedUrl,
   retryCount,
+  sentryScope,
+  sentrySpan,
 }: UploadStatsArgs) {
   const iterator = message[Symbol.iterator]();
   const stream = new ReadableStream({
@@ -33,25 +38,67 @@ export async function uploadStats({
   }).pipeThrough(new TextEncoderStream());
 
   let response: Response;
+
   try {
-    response = await fetchWithRetry({
-      url: preSignedUrl,
-      retryCount,
-      name: "`upload-stats`",
-      requestData: {
-        method: "PUT",
-        headers: {
-          "Content-Type": "application/json",
-        },
-        duplex: "half",
-        // @ts-expect-error TypeScript doesn't know that fetch can accept a
-        // ReadableStream as the body
-        body: stream,
+    response = await startSpan(
+      {
+        name: "Uploading Stats",
+        op: "http.client",
+        scope: sentryScope,
+        parentSpan: sentrySpan,
       },
-    });
+      async (uploadStatsSpan) => {
+        let wrappedResponse: Response;
+        const HTTP_METHOD = "PUT";
+
+        if (uploadStatsSpan) {
+          // we're not collecting the URL here because its a pre-signed URL
+          uploadStatsSpan.setAttribute("http.request.method", HTTP_METHOD);
+        }
+
+        try {
+          wrappedResponse = await fetchWithRetry({
+            url: preSignedUrl,
+            retryCount,
+            name: "`upload-stats`",
+            requestData: {
+              method: HTTP_METHOD,
+              headers: {
+                "Content-Type": "application/json",
+              },
+              duplex: "half",
+              // @ts-expect-error TypeScript doesn't know that fetch can accept a
+              // ReadableStream as the body
+              body: stream,
+            },
+          });
+        } catch (e) {
+          red("Failed to upload stats, fetch failed");
+          throw new FailedFetchError("Failed to upload stats");
+        }
+
+        if (uploadStatsSpan) {
+          // Set attributes for the response
+          uploadStatsSpan.setAttribute(
+            "http.response.status_code",
+            wrappedResponse.status,
+          );
+          uploadStatsSpan.setAttribute(
+            "http.response_content_length",
+            Number(wrappedResponse.headers.get("content-length")),
+          );
+          uploadStatsSpan.setAttribute(
+            "http.response.status_text",
+            wrappedResponse.statusText,
+          );
+        }
+
+        return wrappedResponse;
+      },
+    );
   } catch (e) {
-    red("Failed to upload stats, fetch failed");
-    throw new FailedFetchError("Failed to upload stats");
+    // just re-throwing the error here
+    throw e;
   }
 
   if (response.status === 429) {