How to implement Oauth2 without sending client_secret in WSO2 APIM

Question

I want to get access token without submiting Base64(client_id:client_secret) in the request.

I just want to submit the client_id and username and password (Password Grant Type) : public passoword grant type

It's called public scheme by IBM. Please quiclky skim through this likn. What I like is to never send the client_secret in an access token request. The image below illustrate it (still IBM).

The problem is that WSO2 APIM requests to obtain access token ALWAYS include the Base64(client_id:client_secret) parameter. I would like to be able to send only the following cURL to get an access token

I would like to be able to send the following cURL to get the access token

Answer 1

1) Go to /carbon and list down the Service Providers.

2) Edit the relevant Service Provider corresponding to your Application.

3) Open Inbound Configuration > OAuth Configuraton.

4) Edit the OAoth app.

5) Tick Allow authentication without the client secret.

6) Try above curl.