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ASGI support for the Tartiflette Python GraphQL engine

Project description

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tartiflette-asgi is a wrapper that provides ASGI support for the Tartiflette Python GraphQL engine.

It is ideal for serving a GraphQL API over HTTP, or adding a GraphQL API endpoint to an existing ASGI application (e.g. FastAPI, Starlette, Quart, etc).

Full documentation is available at: https://tartiflette.github.io/tartiflette-asgi

Requirements

tartiflette-asgi is compatible with:

  • Python 3.6+.
  • Tartiflette 1.x.

Quickstart

First, install Tartiflette's external dependencies, as explained in the Tartiflette tutorial.

Then, you can install Tartiflette and tartiflette-asgi using pip:

pip install tartiflette "tartiflette-asgi==0.*"

You'll also need an ASGI web server. We'll use Uvicorn here:

pip install uvicorn

Create an application that exposes a TartifletteApp instance:

from tartiflette import Resolver
from tartiflette_asgi import TartifletteApp

@Resolver("Query.hello")
async def hello(parent, args, context, info):
    name = args["name"]
    return f"Hello, {name}!"

sdl = "type Query { hello(name: String): String }"
app = TartifletteApp(sdl=sdl, path="/graphql")

Save this file as graphql.py, then start the server:

uvicorn graphql:app

Make an HTTP request containing a GraphQL query:

curl http://localhost:8000/graphql -d '{ hello(name: "Chuck") }' -H "Content-Type: application/graphql"

You should get the following JSON response:

{ "data": { "hello": "Hello, Chuck!" } }

To learn more about using tartiflette-asgi, head to the documentation: https://tartiflette.github.io/tartiflette-asgi

Contributing

Want to contribute? Awesome! Be sure to read our Contributing guidelines.

Changelog

Changes to this project are recorded in the changelog.

License

MIT

Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

0.12.0 - 2022-05-13

Added

  • Add support for variables in query parameters. (Pull #176)

0.11.0 - 2021-09-03

Added

  • Add official compatibility with Tartiflette 1.4.x. (Pull #153)

Changed

  • Update dependency on Starlette to 0.16.*. (Pull #154)
  • Update httpx requirement to 0.19.* (Pull #159)

0.10.0 - 2021-01-19

Added

  • Add official compatibility with Tartiflette 1.3.x. (Pull #132)

0.9.0 - 2020-06-10

Removed

  • Drop deprecated mount helpers module. Prefer using the mounting mechanism of your ASGI framework. (Pull #119)

Changed

  • Update dependency on Starlette to 0.13.*. (Pull #106)
  • Convert internal modules to private naming. All public API should be accessed from the top-level tartiflette_asgi package. (Pull #117)

Added

  • Add compatibility with Starlette 0.13.*. (Pull #106)

0.8.0 - 2020-06-04

Added

  • Add support for Tartiflette 1.2.x. (Pull #115)

Fixed

  • Fix GraphiQL subscriptions endpoint when using ASGI sub-mounting. (Pull #98)
  • Fix protocol mismatch error when serving GraphiQL over HTTPS. (Pull #114)

0.7.1 - 2019-10-28

Fixed

  • Requests containing malformed JSON now return a 400 Bad Request error response instead of 500 Internal Server Error. (Pull #81)

0.7.0 - 2019-10-27

Changed

  • Renamed project to tartiflette-asgi.

0.6.0 - 2019-10-18

Added

  • Add support for Tartiflette 1.x. (Pull #58)
  • Officialize support for Python 3.8. (Pull #80)

Removed

  • Drop support for Tartiflette 0.x. (Pull #58)

0.5.2 - 2019-10-09

Added

  • Add support for Python 3.8. (Pull #55)

Fixed

  • Type annotations are now correctly detected by mypy. (Pull #66)
  • Fix a bug that prevented the GraphiQL web interface from making queries when the application was mounted on a parent ASGI app. (Pull #51)

0.5.1 - 2019-07-16

Fixed

  • Fixed a bug that prevented accessing the GraphiQL interface when subscriptions were not enabled.

0.5.0 - 2019-07-12

Added

  • WebSocket subscriptions, configurable with the new subscriptions option on TartifletteApp.
  • Pass extra context to resolvers using the new context option on TartifletteApp.

0.4.0 - 2019-07-04

Added

  • Support for Tartiflette 0.12.x.
  • Add a mount module with submounting helpers.
  • Add mount.starlette().

Changed

  • Due to the new engine cooking API in Tartiflette 0.12, TartifletteApp now includes a startup event handler responsible for building the GraphQL engine. If submounting, it must be registered on the parent ASGI app. Helpers in the mount module take care of this for you.

Removed

  • Drop support for Tartiflette 0.11.x and below.

0.3.0 - 2019-07-03

Added

  • GraphiQL configuration via the GraphiQL helper. Options: path, default_query, default_headers, default_variables, template.

Changed

  • Internal refactoring that leverages more of Starlette's capabilities.
  • Documentation improvements.

0.2.0 - 2019-06-10

Added

  • Support for starlette>=0.12 (previously >=0.12.0b3).
  • Tartiflette is now installed too when installing tartiflette-asgi.

Changed

  • The default path is now "" (previously "/").
  • The request is now accessible in the GraphQL context via context["req"] (previously context["request"]).
  • If no error occurred, the errors field is not present in the response anymore (previously was None).

Fixed

  • More robust URL matching on TartifletteApp.

0.1.1 - 2019-04-28

Fixed

  • Add missing graphiql.html package asset.

0.1.0 - 2019-04-26

Added

Features:

  • TartifletteApp ASGI application.
  • Built-in GraphiQL client.

Project-related additions:

  • Package setup.
  • Changelog.
  • Contributing guide.
  • README and documentation.

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