account-service/src/main/java/com/drinkool/RestAPI.java

@@ -30,4 +30,18 @@ public class RestAPI {
 
         return Response.status(Response.Status.CREATED).build();
     }
+
+    @POST
+    @Path("/login")
+    public Response login(Login input) {
+        Customer customer = Customer.find("phone", input.phone).firstResult();
+
+        if (customer == null)
+            throw new BadRequestException("InvalidPhoneNumber");
+
+        if (!customer.login(input.password))
+            throw new BadRequestException("InvalidPassword");
+
+        return Response.accepted().build();
+    }
 }

account-service/src/main/java/com/drinkool/dtos/Login.java

@@ -0,0 +1,6 @@
+package com.drinkool.dtos;
+
+public class Login {
+    public String phone;
+    public String password;
+}