Use status_code in error response.

Remove code.

app/authentication/auth.py

@@ -16,10 +16,11 @@ class AuthError(Exception):
         self.code = code
 
     def to_dict_v2(self):
-        return {'code': self.code,
-                'message': self.short_message,
-                'fields': self.message,
-                'link': 'link to docs'}
+        return {
+            'status_code': self.code,
+            'message': self.short_message,
+            'fields': self.message
+        }
 
 
 def get_auth_token(req):

app/errors.py

@@ -25,7 +25,7 @@ class InvalidRequest(Exception):
         Version 2 of the public api error response.
         '''
         return {
-            "code": self.code,
+            "status_code": self.code,
             "message": self.message,
             "fields": self.fields
         }

app/schema_validation/__init__.py

@@ -19,7 +19,7 @@ def build_error_message(errors, schema):
         field = {s[1]: s[2].strip()}
         fields.append(field)
     message = {
-        "code": "1001",
+        "status_code": 400,
         "message": "Validation error occurred - {}".format(schema['title']),
         "fields": fields
     }

app/v2/errors.py

@@ -11,7 +11,6 @@ from app.errors import InvalidRequest
 
 class TooManyRequestsError(InvalidRequest):
     status_code = 429
-    code = "10429"
     message_template = 'Exceeded send limits ({}) for today'
 
     def __init__(self, sending_limit):
@@ -20,7 +19,6 @@ class TooManyRequestsError(InvalidRequest):
 
 class BadRequestError(InvalidRequest):
     status_code = 400
-    code = 10400
     message = "An error occurred"
 
     def __init__(self, fields=[], message=None):