Firestore Delete Failing to Fetch Documents - google-cloud-firestore

Question

I'm trying to implement a recursive delete in cloud functions, but the delete function is returning the error [firebase_functions/internal] FirebaseError: Deletion failed. Errors: Failed to fetch documents to delete >= 3 times..
It's very similar to this post, but I tried updating firebase tools and getting a fresh token and no change. I tried getting the debug logs by adding in process.env.DEBUG = true, but I got a type error that it had to be a string - so I changed true to "true" and it doesn't seem to be giving me any logs (unless I just don't know where to look for them).
The function is deploying, although I am getting the message:
[2022-12-08T22:01:07.693Z] Could not find image for function projects/onama-produce/locations/australia-southeast1/functions/recursiveDelete
This is the function:
/* eslint #typescript-eslint/no-var-requires: "off" */
import * as functions from "firebase-functions";
process.env.DEBUG = "true";
const firebaseTools = require("firebase-tools");
/**
* Initiate a recursive delete of documents at a given path.
*
* The calling user must be authenticated.
*
* This delete is NOT an atomic operation and it's possible
* that it may fail after only deleting some documents.
*
* #param {string} data.path the document or collection path to delete.
*/
exports.recursiveDelete = functions
.region("australia-southeast1")
.runWith({
timeoutSeconds: 540,
memory: "2GB",
})
.https.onCall(async (data, context) => {
// Only allow authorised users to execute this function.
if (!(context.auth && context.auth.token)) {
throw new functions.https.HttpsError(
"permission-denied",
"Must be an administrative user to initiate delete."
);
}
const path = data.path;
console.log(
`User ${context.auth.uid} has requested to delete path ${path}`
);
// Run a recursive delete on the given document or collection path.
// The 'token' must be set in the functions config, and can be generated
// at the command line by running 'firebase login:ci'.
try {
await firebaseTools.firestore
.delete(path, {
project: process.env.GCP_PROJECT,
recursive: true,
force: true,
token: process.env.TOKEN,
});
return {
path: path,
};
} catch (err) {
throw new functions.https.HttpsError("internal", String(err));
}
});
And this is the client-side code (written in flutter):
/// Call the 'recursiveDelete' callable function with a path to initiate
/// a server-side delete.
void deleteAtPath(String path) async {
print("delete: deleting at path " + path);
try {
final HttpsCallableResult deleteFnResult = await functions
.httpsCallable('recursiveDelete')
.call(<String, String>{
"path": path,
});
print(deleteFnResult.toString());
} on FirebaseFunctionsException catch (e) {
print("firebase error: " + e.toString() + " for deleting path " + path);
} catch (e) {
print("path delete error " + e.toString() + " for deleting path " + path);
}
}
deleteUserProfile(String _uid) async {
deleteAtPath(_userCollection.doc(_uid).path);
deleteAtPath(_locationsCollection.doc(_uid).path);
deleteEachProduct(productsFromUserProfileQuery(_uid));
return;
}
This is the error:
Failed to fetch documents to delete error
And this is my package.json file:
{
"name": "functions",
"scripts": {
"lint": "eslint --ext .js,.ts .",
"build": "tsc",
"build:watch": "tsc --watch",
"serve": "npm run build && firebase emulators:start --only functions",
"shell": "npm run build && firebase functions:shell",
"start": "npm run shell",
"deploy": "firebase deploy --only functions",
"logs": "firebase functions:log"
},
"engines": {
"node": "16"
},
"main": "lib/index.js",
"dependencies": {
"firebase-admin": "^11.3.0",
"firebase-functions": "^4.1.0",
"firebase-tools": "^11.17.0"
},
"devDependencies": {
"#typescript-eslint/eslint-plugin": "^5.12.0",
"#typescript-eslint/parser": "^5.12.0",
"eslint": "^8.9.0",
"eslint-config-google": "^0.14.0",
"eslint-plugin-import": "^2.25.4",
"firebase-functions-test": "^0.2.0",
"typescript": "^4.5.4"
},
"private": true
}
Also, I can delete via the command line fine, e.g. firebase firestore:delete users/iALet1LOthcw0Nx6FMgP6nOa3N83 works
I've been battling firebase functions for days, so any help will be greatly appreciated!!

Answer 1

Solution: I figured out how to access the logs and saw that for some reason the project was undefined. I swapped back to getting the project id from the deprecated process.env.GCLOUD_PROJECT instead of process.env.GCP_PROJECT and it works now yay!