How to call procedures

You can use the methods call() and yield_() to construct queries that will call procedure and return results from them.

• call(procedure: str, arguments: Optional[str] = None) - Call the procedure procedure with the arguments arguments.
• yield_(results: Optional[Dict[str, str]]) - Yield results from a procedure with aliases formatted as key AS value.

Call procedure with no arguments

To call a procedure with no arguments, don't specify the arguments in the call() method:

GQLAlchemy

from gqlalchemy import Call

query = Call("pagerank.get").yield_().return_().execute()

Cypher

CALL pagerank.get() YIELD * RETURN *;

Call procedure with arguments

To call a procedure with arguments, specify the arguments as a string in the call() method:

GQLAlchemy

from gqlalchemy import Call

query = Call("json_util.load_from_url", "https://some-url.com")
        .yield_(results="objects")
        .return_(results="objects")
        .execute()

Cypher

CALL json_util.load_from_url("https://some-url.com") YIELD objects RETURN objects;