Add check org name is unique endpoint

app/organisation/rest.py

@@ -107,3 +107,26 @@ def get_organisation_users(organisation_id):
 
     result = user_schema.dump(org_users, many=True)
     return jsonify(data=result.data)
+
+
+@organisation_blueprint.route('/unique', methods=["GET"])
+def is_organisation_name_unique():
+    organisation_id, name = check_request_args(request)
+
+    name_exists = Organisation.query.filter(Organisation.name.ilike(name)).first()
+
+    result = (not name_exists) or str(name_exists.id) == organisation_id
+    return jsonify(result=result), 200
+
+
+def check_request_args(request):
+    org_id = request.args.get('org_id')
+    name = request.args.get('name', None)
+    errors = []
+    if not org_id:
+        errors.append({'org_id': ["Can't be empty"]})
+    if not name:
+        errors.append({'name': ["Can't be empty"]})
+    if errors:
+        raise InvalidRequest(errors, status_code=400)
+    return org_id, name