only check api keys on selected resources

api/core.py

@@ -1,6 +1,5 @@
 from flask import Flask, jsonify, Response, request
 from api.extensions import db, esales
-from api.helpers import check_api_key
 from api.validators import ValidationError
 
 
@@ -32,7 +31,4 @@ def create_app(config_name='config'):
     app.register_blueprint(categories.mod)
     app.register_blueprint(prices.mod)
 
-    # authentication
-    app.before_request(check_api_key)
-
     return app