graphene/docs/execution/execute.rst
2017-07-27 03:05:58 -07:00

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Executing a query
=================
For executing a query a schema, you can directly call the ``execute`` method on it.
.. code:: python
schema = graphene.Schema(...)
result = schema.execute('{ name }')
``result`` represents the result of execution. ``result.data`` is the result of executing the query, ``result.errors`` is ``None`` if no errors occurred, and is a non-empty list if an error occurred.
Context
_______
You can pass context to a query via ``context_value``.
.. code:: python
class Query(graphene.ObjectType):
name = graphene.String()
def resolve_name(self, info):
return info.context.get('name')
schema = graphene.Schema(Query)
result = schema.execute('{ name }', context_value={'name': 'Syrus'})
Variables
_______
You can pass variables to a query via ``variable_values``.
.. code:: python
class Query(graphene.ObjectType):
user = graphene.Field(User)
def resolve_user(self, info):
return info.context.get('user')
schema = graphene.Schema(Query)
result = schema.execute(
'''query getUser($id: ID) {
user(id: $id) {
id
firstName
lastName
}
}''',
variable_values={'id': 12},
)