ECONNRESET

[Jared00m]

I have been working on a Flutter project that uses Firebase Functions. In the past, I was able to create a Firebase Function that retrieves a JWT access token with no problem. However, recently, I get the following error every time:

{"severity":"ERROR","message":"Unhandled error GaxiosError: Invalid response body while trying to fetch https://www.googleapis.com/oauth2/v4/token: read ECONNRESET\n

Here is my code:

import { JWT } from "google-auth-library";
import fs from "fs";
import * as functions from "firebase-functions";
const logger = functions.logger;

export const getJSONWebToken = functions.https.onCall(async (data, context) => {
  try {
    const keyFile = "./src/secrets/***************************";

    const keys = JSON.parse(fs.readFileSync(keyFile, "utf8"));

    const client = new JWT({
      email: keys.client_email,
      key: keys.private_key,
      scopes: ["https://www.googleapis.com/auth/cloud-platform"],
    });

    const url = `https://dns.googleapis.com/dns/v1/projects/${keys.project_id}`;
    await client.request({ url });

    const res = await client.getAccessToken();

    if (res.token) {
      return { token: res.token };
    } else {
      console.log("no token retrieved");
      return { token: "no token " };
    }
  } catch (error) {
    logger.error(error);
    throw error;
  }
});

Any help would be greatly appreciated. I'm not a professional coder and I'm new to Firebase and Flutter.

[danielbankhead]

@Jared00m which version of Node are you running?

[Jared00m]

@danielbankhead , thanks for asking. I've tried it on Node 18, 16, 15, 14, and 12.

On node 15 I get a useful error that says:

data: {
      error: {
        code: 403,
        message: 'Forbidden',
        errors: [
          {
            message: 'Forbidden',
            domain: 'global',
            reason: 'forbidden'
          }
        ]
      }
    },

On Node 18 I get this error:

config: {
    method: 'POST',
    url: 'https://www.googleapis.com/oauth2/v4/token',
    data: {
      grant_type: '<<REDACTED> - See `errorRedactor` option in `gaxios` for configuration>.',
      assertion: '<<REDACTED> - See `errorRedactor` option in `gaxios` for configuration>.'
    },
    headers: {
      'Content-Type': 'application/x-www-form-urlencoded',
      'User-Agent': 'google-api-nodejs-client/9.2.0',
      'x-goog-api-client': 'gl-node/18.3.0',
      Accept: 'application/json'
    },
    responseType: 'json',
    paramsSerializer: [Function: paramsSerializer],
    body: '<<REDACTED> - See `errorRedactor` option in `gaxios` for configuration>.',
    validateStatus: [Function: validateStatus],
    errorRedactor: [Function: defaultErrorRedactor]
  },
  response: undefined,
  error: FetchError: Invalid response body while trying to fetch https://www.googleapis.com/oauth2/v4/token: read ECONNRESET
      at Gunzip.<anonymous> (/Users/jared/Coding/language-app-test/language-app/functions/node_modules/node-fetch/lib/index.js:400:12)
      at Gunzip.emit (node:events:539:35)
      at emitErrorNT (node:internal/streams/destroy:151:8)
      at emitErrorCloseNT (node:internal/streams/destroy:116:3)
      at process.processTicksAndRejections (node:internal/process/task_queues:82:21) {
    type: 'system',
    errno: 'ECONNRESET',
    code: 'ECONNRESET'
  },
  code: 'ECONNRESET'
}

[danielbankhead]

Investigating. Potentially related items:

• Implement Retryable interface for token endpoint requests #1366
• fix: update token endpoints to non-deprecated endpoints node-gtoken#466

[danielbankhead]

After discussing with the team, this is best handled by setting up automatic retries in this library.

I'll prioritize this work and it can be tracked here:

• Implement Retryable interface for token endpoint requests #1366

[danielbankhead]

This PR should provide some relief for the immediate issue:

• feat: Enable Token Retries node-gtoken#481