How to pass OAuth token for Google SpreadSheet API from Kotlin code to JavaScript code? - google-sheets-api

Question

I am trying to access Google SpreadSheet API in a special way, but I cannnot achieve that.
In short, I want to get OAuth access token in Kotlin code, but use it in JavaScript code.
At first, I get OAuth access token in Kotlin like below (using com.google.api-client.google-api-client and com.google.api-client.google-oauth-client-jetty).
val scopes = Collections.singletonList(SheetsScopes.SPREADSHEETS)
val httpTransport = GoogleNetHttpTransport.newTrustedTransport()
val jsonFactory = GsonFactory.getDefaultInstance()
val inputStream = this.javaClass.getResourceAsStream("credentials.json") ?: throw Exception("file not found")
val clientSecrets = GoogleClientSecrets.load(
jsonFactory,
InputStreamReader(inputStream)
)
val flow = GoogleAuthorizationCodeFlow
.Builder(
httpTransport,
jsonFactory,
clientSecrets,
scopes
)
.setDataStoreFactory(FileDataStoreFactory(File("cache")))
.setAccessType("offline")
.build()
val receiver = LocalServerReceiver.Builder()
.setPort(8888)
.build()
val credential = AuthorizationCodeInstalledApp(flow, receiver)
.authorize("user")
val info = Body(
clientSecrets.installed.clientId, // clientId
clientSecrets.installed.clientSecret, // clientSecret
clientSecrets.installed.redirectUris, // redirectUris
credential.accessToken, // apiAccessToken
credential.refreshToken, // refreshToken
scopes, // scopes
"Bearer", // tokenType
credential.expirationTimeMilliseconds, // expiryDate
"Sample Sheet" // title
)
Next, I want to use access token and access Google SpreadSheet API in JavaScript. I pass required information via HTTP from Kotlin code to JavaScript code. My JavaScript code like below (using googleapis#39.2.0).
import { google } from 'googleapis'
// event.body equals 'info' object shown in Kotlin code
export async function handler(event, context) {
const body = JSON.parse(event.body)
const oAuth2Client = new google.auth.OAuth2(
body.clientId,
body.clientSecret,
body.redirectUris[0]
)
oAuth2Client.setCredentials({
access_token: body.apiAccessToken,
refresh_token: body.refreshToken,
scope: body.scopes.join(' '),
token_type: body.tokenType,
expiry_date: body.expiryDate
})
const sheets = google.sheets({ version: 'v4', oAuth2Client })
const spreadSheetId = await createSheet(sheets, body.title)
return {
id: spreadSheetId
}
}
async function createSheet(sheets, title) {
const request = {
resource: {
property: {
title: title
}
}
}
const response = await sheets.spreadsheets.create(request)
return {
id: response.data.spreadsheetId
}
}
While I can successfully sign in via OAuth and get access token, I got a error below at const response = await sheets.spreadsheets.create(request).
{
code: 401,
errors: [
{
message: 'Login Required.',
domain: 'global',
reason: 'required',
location: 'Authorization',
locationType: 'header'
}
]
}
I cannot understand why I got this error. So, my question is how can I successfully use Google SpreadSheet API in this case (authorize in Kotlin, use API in JavaScript).