Firebase Admin SDK - ENOENT: no such file or directory, open 'protos.json'

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1

Hi there,
I was migrating our functions to typescript (when they were pure JS, they’d run just fine) so I’m running into this weird issue with (I think) the firebase admin SDK.

The functions build just fine, but upon calling them, it throws this magnificent thing:

Error: ENOENT: no such file or directory, open 'protos.json'
  Object.openSync (fs.js:476:3)
  Object.readFileSync (fs.js:377:35)
  fetch (D:\Github\<project-folder>\.netlify\functions-serve\subscribeToNewsletter\src\index.js:84789:28)
  Root.load (D:\Github\<project-folder>\.netlify\functions-serve\subscribeToNewsletter\src\index.js:84818:9)
  Root.loadSync (D:\Github\<project-folder>\.netlify\functions-serve\subscribeToNewsletter\src\index.js:84828:17)
  Object.loadProtosWithOptionsSync (D:\Github\<project-folder>\.netlify\functions-serve\subscribeToNewsletter\src\index.js:87952:29)
  Object.loadSync (D:\Github\<project-folder>\.netlify\functions-serve\subscribeToNewsletter\src\index.js:88100:31)
  GrpcClient.loadFromProto (D:\Github\<project-folder>\.netlify\functions-serve\subscribeToNewsletter\src\index.js:88924:44)
  GrpcClient.loadProto (D:\Github\<project-folder>\.netlify\functions-serve\subscribeToNewsletter\src\index.js:88942:19)
  new FirestoreClient (D:\Github\<project-folder>\.netlify\functions-serve\subscribeToNewsletter\src\index.js:128150:36)
  sed by: Error
  Firestore.getAll (D:\Github\<project-folder>\.netlify\functions-serve\subscribeToNewsletter\src\index.js:128804:21)
  DocumentReference.get (D:\Github\<project-folder>\.netlify\functions-serve\subscribeToNewsletter\src\index.js:111311:30)
  saveToFirebase (D:\Github\<project-folder>\.netlify\functions-serve\subscribeToNewsletter\src\index.js:131852:23)
  Object.handler (D:\Github\<project-folder>\.netlify\functions-serve\subscribeToNewsletter\src\index.js:131908:31)
  processTicksAndRejections (internal/process/task_queues.js:93:5)

Now, I’ve tried/looked through:

But unfortunately, none helped my situation.

I have also seen this, but since Netlify uses esbuild I don’t know how to set that (__dirname: true) (or equivalent) option.

Code Sample (functions/firebase/firebase.ts) saveToFirebase gets called from the functions/subscribeToNewsletter/index.ts:

import * as firebase from "firebase-admin";
import * as rawServiceAccount from "./[...].json";
import { FirebaseOps } from "../constants";
import { SubscribeFormData, UnsubscribeFormData } from "../interfaces";
import { Logger } from "../logger";

const serviceAccount = {
  type: rawServiceAccount.type,
  projectId: rawServiceAccount.project_id,
  privateKeyId: rawServiceAccount.private_key_id,
  privateKey: rawServiceAccount.private_key,
  clientEmail: rawServiceAccount.client_email,
  clientId: rawServiceAccount.client_id,
  authUri: rawServiceAccount.auth_uri,
  tokenUri: rawServiceAccount.token_uri,
  authProviderX509CertUrl: rawServiceAccount.auth_provider_x509_cert_url,
  clientC509CertUrl: rawServiceAccount.client_x509_cert_url
}

const saveToFirebase = async (
  formData: SubscribeFormData | UnsubscribeFormData,
  operation: FirebaseOps
): Promise<string> => {
  try {
    firebase.initializeApp({
      credential: firebase.credential.cert(serviceAccount),
    });
  } catch (e) {
    Logger.warn(e);
  }

  [...]
};

export { saveToFirebase }

Website: https://buyprisma.netlify.app/. Currently the JS files are deployed, since I couldn’t get the TS Scripts to work.

2

Solved

I completely forgot about the external_node_modules option, and sure enough, adding external_node_modules = ["firebase-admin"] to your netlify.toml file under [functions] makes it work!

1 Like
3

@davidp-ro , thank you so much for following up with your solution! Knowledge sharing is something that keeps the Forums great, so we really appreciate it :netlisparkles: