Fix bug where enabling API erroneously sent some payload. (#4467)

The options we were including to suppresses superfluously log entries whenever we enable GCP API were being sent as payload to the POST request.

Fixes #4465

CHANGELOG.md

@@ -0,0 +1 @@
+- Fixes bug where API enablement failed. (#4467)

src/ensureApiEnabled.ts

@@ -50,9 +50,13 @@ export async function check(
  */
 async function enable(projectId: string, apiName: string): Promise<void> {
   try {
-    await apiClient.post(`/projects/${projectId}/services/${apiName}:enable`, {
-      skipLog: { resBody: true },
-    });
+    await apiClient.post<undefined, unknown>(
+      `/projects/${projectId}/services/${apiName}:enable`,
+      undefined,
+      {
+        skipLog: { resBody: true },
+      }
+    );
   } catch (err: any) {
     if (isBillingError(err)) {
       throw new FirebaseError(`Your project ${bold(

src/test/ensureApiEnabled.spec.ts

@@ -74,7 +74,7 @@ describe("ensureApiEnabled", () => {
         .reply(200, { state: "DISABLED" });
 
       nock("https://serviceusage.googleapis.com")
-        .post(`/v1/projects/${FAKE_PROJECT_ID}/services/${FAKE_API}:enable`)
+        .post(`/v1/projects/${FAKE_PROJECT_ID}/services/${FAKE_API}:enable`, (body) => !body)
         .once()
         .reply(200);