Get api key before checking args

Author: dianakolusheva

emmaa_service/api.py

@@ -1640,15 +1640,16 @@ def submit_curation_endpoint(hash_val, **kwargs):
             res_dict = {"result": "failure",
                         "reason": "POST with API key requires a user email."}
             return jsonify(res_dict), 400
-    logger.info("Adding curation for statement %s." % hash_val)
-    ev_hash = request.json.get('ev_hash')
-    tag = request.json.get('tag')
-    text = request.json.get('text')
     api_key = roles[0].api_key
     if not api_key:
         res_dict = {"result": "failure",
                     "reason": "API key is required to submit curations."}
         return jsonify(res_dict), 401
+    logger.info("Adding curation for statement %s." % hash_val)
+    ev_hash = request.json.get('ev_hash')
+    tag = request.json.get('tag')
+    text = request.json.get('text')
+    ev_json = request.json.get('ev_json')
     try:
         res = submit_curation(hash_val, tag, email, text, source='EMMAA',
                               ev_hash=ev_hash, ev_json=ev_json,