How to use OAuth2 with node.js - google-bigquery

Question

I would like to use #google-cloud client lib to insert data to BigQuery.
Since I have multiple clients and each has different IAM role I can't use a service account like this:
const bigquery = new BigQuery({
projectId: `myProject`,
keyFilename: '/Users/services/ssh/myProject-111.json'
});
rather I would like to use client-specific oauth2 like this:
const bigquery = new BigQuery({
projectId: `mydata-1470162410749`,
token: clientOauth2Token
});
I get this error
Error in the process: Request had invalid authentication credentials. Expected OAuth 2 access token, login cookie or other valid authentication credential. See https://developers.google.com/identity/sign-in/web/devconsole-project. - Invalid Credentials
This is the full mocha test code I'm using:
import BigQuery from '#google-cloud/bigquery';
import {GoogApi} from "../apiManager" //Private code to get Token from client DB
if (!global._babelPolyfill) {
var a = require("babel-polyfill")
}
describe('Check routing', async () => {
it('Test stack ', async (done) => {
//Fetch client Auth from local Database
let apiManager = new GoogApi({query: {integrationTest: 'on'}}, {}, (err, httpResults) => {});
let clientAuth = await apiManager.getGoogleTokensByUserId(`user#company.con`);
//Replace the 2 value below with real values
const tableName = "myTest";
const dataset = "EVALUEX_DEV";
try {
const bigquery = new BigQuery({
projectId: `myProject`,
token: clientAuth.credentials.access_token
});
await bigquery.createDataset(dataset)
.then(
args => {
console.log(`Create dataset, result is: ${args}`)
})
.catch(err => {
console.log(`Error in the process: ${err.message}`)
})
} catch (err) {
console.log("err", err)
}
})
})
This is how my Token looks like when I Inspect it
{
"domain": null,
"_events": {},
"_eventsCount": 0,
"transporter": {},
"credentials": {
"access_token": "My Token",
"refresh_token": "my Refresh Token"
},
"certificateExpiry": null,
"refreshTokenPromises": [],
"_clientId": "my Client Id",
"_clientSecret": "My client secret",
"redirectUri": "https://s1dg0yjhih.execute-api.us-east-1.amazonaws.com/stage1/goog/saveToken",
"eagerRefreshThresholdMillis": 300000
}

Answer 1

The JSON object you shared is not an OAuth token, it looks like a OAuth2Client object from #google-auth-library.
An actual OAuth token is simply a string, like "ya29.ABC123ABC123_cG123ABCDETCETCETC".
That "token" is actually an OAuth2Client then you can fetch the token with the getAccessToken method. If it is just a plain JSON object, then you can get the credentials.access_token field, is the actual access token.
Note that access tokens expire. getAccessToken will get a new one if necessary, but just getting the access_token from the object will not, and can result in 403s after it expires.