firebase-functions: cloud function error: PERMISSION_DENIED: Missing or insufficient permissions

Related issues

[REQUIRED] Version info

node: v18.16.0

firebase-functions: 4.3.1

firebase-tools: 12.4.0

firebase-admin: 11.8.0

[REQUIRED] Test case

I have successfully deployed a cloud function: but it gives PERMISSION_DENIED when triggered.

[REQUIRED] Steps to reproduce

import * as functions from "firebase-functions";
import * as admin from "firebase-admin";

admin.initializeApp();

export const setTimestampsOnCreate = functions.firestore
  .document("listings/{listingId}")
  .onCreate((snapshot) => {
    const currentTime = admin.firestore.FieldValue.serverTimestamp();
    return snapshot.ref.set(
      {
        createdAt: currentTime,
        updatedAt: currentTime,
      },
      {
        merge: true,
      }
    );
  });

Then, firebase deploy.

[REQUIRED] Expected behavior

createdAt and updatedAt appear in the new listing document.

[REQUIRED] Actual behavior

Nothing appears, and this appears in the Logs Explorer of that function:

{
  "textPayload": "Error: 7 PERMISSION_DENIED: Missing or insufficient permissions.\n    at callErrorFromStatus (/workspace/node_modules/@grpc/grpc-js/build/src/call.js:31:19)\n    at Object.onReceiveStatus (/workspace/node_modules/@grpc/grpc-js/build/src/client.js:192:76)\n    at Object.onReceiveStatus (/workspace/node_modules/@grpc/grpc-js/build/src/client-interceptors.js:360:141)\n    at Object.onReceiveStatus (/workspace/node_modules/@grpc/grpc-js/build/src/client-interceptors.js:323:181)\n    at /workspace/node_modules/@grpc/grpc-js/build/src/resolving-call.js:94:78\n    at process.processTicksAndRejections (node:internal/process/task_queues:77:11)",
  "insertId": "648c880e000cfb9650c27bb0",
  "resource": {
    "type": "cloud_function",
    "labels": {
      "region": "us-central1",
      "function_name": "setTimestampsOnCreate",
      "project_id": "dormati-b29a7"
    }
  },
  "timestamp": "2023-06-16T16:04:30.850838Z",
  "severity": "ERROR",
  "labels": {
    "execution_id": "o5u6vlzf6e9r",
    "instance_id": "00c61b117c826b7c9fc18c8a07396f9e616a78e6c171e68f19f1883509553185306afbb9d971675d3d2c7342435e696a0c175110b72872058288"
  },
  "logName": "projects/dormati-b29a7/logs/cloudfunctions.googleapis.com%2Fcloud-functions",
  "trace": "projects/dormati-b29a7/traces/3ad8e82b637efdf9568fc980600644e0",
  "receiveTimestamp": "2023-06-16T16:04:31.075976411Z"
}

Were you able to successfully deploy your functions?

Yes