Retrofit: How to send a POST request with constant fields?

Question

I want to sent a simple POST request with one actual parameter:

@POST(\"/token\")
@FormUrlEncoded
void extendSession(@Field(\"refresh_token\")final String refres         


        

Answer 1

You may use Java Method Invocation Builder for this.

@GenerateMethodInvocationBuilder
public interface ServiceApi {
 @POST("/token")
 @FormUrlEncoded
 void extendSession(
  @Default("theToken") @Field("refresh_token") final String refreshToken,
  @Default("theId") @Field("client_id") final String clientId,
  @Default("theSecret") @Field("client_secret") final String clientSecret,
  @Default("theType") @Field("grant_type") final String grantType);
}

And then you can invoke the api like:

ServiceApiExtendedSessionBuilder.extendedSession()
 .withRefreshToken("theRefreshToken")
 .invoke(serviceApi);