Discussions
Stay up-to-date with the latest news from NetSuite. You’ll be in the know about how to connect with peers and take your business to new heights at our virtual, in-person, on demand events, and much more.
Now is the time to ask your NetSuite-savvy friends and colleagues to join the NetSuite Support Community! Refer now! Click here to watch and learn more!
Stay in the Know
Be sure you're subscribed to NetSuite communication to stay in the know about monthly happenings, updates and announcements. Subscribe
Be sure you're subscribed to NetSuite communication to stay in the know about monthly happenings, updates and announcements. Subscribe
"unsupported_grant_type" at POST Request to OAuth 2.0 Client Credentials Grant Flow
Trying to get access_token from an OAuth 2.0 Netsuite instance set with Client Credentials Grant flow but kept getting "unsupported_grant_type".
Have the following successes:
- Postman was able to get access_token to the same OAuth 2.0 Netsuite instance using Authorized Code Grant flow.
- At the suitelet, was able to get the needed signed JWT (const signedJWT); so the RS256 private key .pem file works using the jsrsasign.js module.
At the https.post(), per SuiteAnswers 101107, I have the following header and body:
const postHeaderObj = {host: `${accountID}.suitetalk.api.netsuite.com`, "Content-Type": 'application/x-www-form-urlencoded'};
const grant_type = 'grant_type=client_credentials';
0