How to make a username password request with auth0 custom api, getting error “unsupported grant type: password” error

Question

I tried using the auth0 postman template to make an authentication request using username and password and I\'m getting an unsupported grant type: password error

Answer 1

These are the exact steps I have taken in order to resolve this exact issue

Login with browser on desktop At top right of UI, click click username, Settings

Scroll down to API Authorization Settings

Enter valid values in BOTH Default Audience, and Default Directory.

For example, for me I already had been using the Lock screen, and had already setup a Default Audience which I was setting in my client application and everything was working.

I also had already setup a Connections > Database, with the name of Username-Password-Authentication.

Here is a screenshot of it working after doing the above, using the postman collection , which at the time of writing, is contained here

https://app.getpostman.com/run-collection/2a9bc47495ab00cda178

which is referenced here

https://auth0.com/docs/api/authentication#code-samples