Extensions

[kindermax]

Adds extension support to Hiku.

• Introduce ExecutionContext to hold all request-related data
• Introduce ExtensionsExecutor which encapsulates execution of extensions during the request lifetime and is responsible for lifetime hooks
• Refactor GraphqlEndpoint
  • support ExecutionContext and ExtensionsExecutor
  • merge batching into GraphqlEndpoint (leave BatchGraphqlEndpoint for compatibility)
  • add the ability to disable introspection
  • add the ability to disable validation
  • add graph, dispatch, parsing, operation, validation, and execution lifetime hooks
• Add QueryDepthValidator extension
• Refactor query cache into the ParseQueryCache extension
• Drop StripQuery transformer, add support for __typename field, as striped query add unnecessary complexity into execution + adds additional overhead during execution

Повний приклад використання ендпоінту:

endpoint = GraphqlEndpoint(
  engine,
  graph,
  introspection=False,
  batching=True,
  extensions=[QueryParserCache(100)],
)

endpoint.dispatch({'query': query})
# or
endpoint.dispatch([{'query': query}])

[kindermax]