In the Swagger UI generated docs, if I want to pass a json that represents a dictionnary I'm obliged to pass the json string field in the format "{'key1': value1, 'key2': value2, ...}". If I request ...

QUERY is optional and can be most any valid python code. Alternatively, a query file can be specified with -q to load the query from a file. Within the query, _ is the sanitized JSON from STDIN ...