Workaround colon issue causing malformed url. square/retrofit#3080

firebase-auth-rest/core/src/main/java/com/anotherdev/firebase/auth/rest/api/IdentityToolkitApi.java

@@ -1,6 +1,18 @@
 package com.anotherdev.firebase.auth.rest.api;
 
+import com.anotherdev.firebase.auth.rest.api.model.SignInAnonymouslyRequest;
+import com.anotherdev.firebase.auth.rest.api.model.SignInAnonymouslyResponse;
+
+import io.reactivex.rxjava3.core.Single;
+import retrofit2.http.Body;
+import retrofit2.http.POST;
+
 public interface IdentityToolkitApi {
 
-    String BASE_URL = "https://identitytoolkit.googleapis.com/v1/";
+    // Workaround colon issue. https://github.com/square/retrofit/issues/3080
+    String BASE_URL = "https://identitytoolkit.googleapis.com/";
+
+
+    @POST("v1/accounts:signUp")
+    Single<SignInAnonymouslyResponse> signInAnonymously(@Body SignInAnonymouslyRequest request);
 }

firebase-auth-rest/core/src/main/java/com/anotherdev/firebase/auth/rest/api/SecureTokenApi.java

@@ -2,5 +2,6 @@
 
 public interface SecureTokenApi {
 
-    String BASE_URL = "https://securetoken.googleapis.com//v1/";
+    // Workaround colon issue. https://github.com/square/retrofit/issues/3080
+    String BASE_URL = "https://securetoken.googleapis.com/";
 }