IdentityServer4.Endpoints.TokenEndpoint: Warning: Invalid HTTP request for token endpoint

[vikramvee]

While sending the request to get the token, to the http://localhost:5000/connect/token api I get the error.
IdentityServer4.Endpoints.TokenEndpoint: Warning: Invalid HTTP request for token endpoint

I did a POST request with the below body

grant_type=password
&[email protected]
&password=testMemberPass
&client_id=ro.client
&client_secret=secret
&scope=myMeetingsAPI

[vonvenera]

Are you using Frontend project to log in (https://github.com/kgrzybek/modular-monolith-with-ddd-fe-react)?
Or are you running .http files included in /Api/RequestExamples?

When I try logging in with frontend app I get same error, but http files work ok.
The problem with frontend app is that it is trying to POST with multipart/form-data content type, while IdnentityServer4 TokenEndpoint expects application/x-www-form-urlencoded (see https://github.com/IdentityServer/IdentityServer4/blob/4dc10e665f5ede63274427036c25cdc216130eb9/src/IdentityServer4/src/Extensions/HttpRequestExtensions.cs#L39)

Not sure how to force frontend app to submit correct content type.