Can you share more of what you're doing?

How have you configured the REST collector?

Trying to create google pub/sub source with Cribl API via Cribl rest collector

Have passed the /system/input endpoint in the collect url and given the json payload in post body and given the cribl bearer token in authorization

Can you share a screenshot of your config?

Sure

Make sure you're sending a POST and that you've also set the `Content-Type: application/json` header. 400 means bad method/input.

<@U01LSBF5953&gt;

What's in the POST body?

FYI that's a Javascript field so you might be sending "undefined" as the payload instead of your intended JSON

The whole payload with type= google_pubsub

Make sure you put quotes around the entire POST body to send it correctly

Also, make sure you add all the required elements:https://docs.cribl.io/api -> schemas -> InputGooglePubsub

<@U01J549PR6Y&gt; <@U01LSBF5953&gt; Thanks!! but am still unable to do so

Is this a standalone instance or Leader you're working with?

<@U01LSBF5953&gt; One more addtional questionIs it possible to use Oauth2.0 in custom collector ?

<@U01LSBF5953&gt; It's a standalone instance

Hey <@U01LSBF5953&gt; This is interesting the grant type I'm having troubles with is ‘password credentials' which requires a username and password. I'm assuming that's not supported doing the method above right?

Yes, OAuth2 (client_credentials flow) is supported for authentication.