Starlette GraphQL

The starlette GraphQL implement, which support query, mutate and subscription. Based on python-gql.

Requirement

Python 3.7+

Installation

pip install starlette-graphql

Getting started

# app.py
from gql import query, gql
from stargql import GraphQL

type_defs = gql("""
type Query {
    hello(name: String!): String!
}
""")


@query
async def hello(parent, info, name: str) -> str:
    return name


app = GraphQL(type_defs=type_defs)

Use uvicorn to run app.

uvicorn app:app --reload

Upload File

import uvicorn
from gql import gql, mutate
from stargql import GraphQL

type_defs = gql("""
 scalar Upload
 
 type File {
    filename: String!
  }

  type Query {
    uploads: [File]
  }

  type Mutation {
    singleUpload(file: Upload!): File!
    multiUpload(files: [Upload!]!): [File!]!
  }
""")


@mutate
def single_upload(parent, info, file):
    return file


@mutate
def multi_upload(parent, info, files):
    return files


app = GraphQL(type_defs=type_defs)


if __name__ == '__main__':
    uvicorn.run(app, port=8080)

Subscription

For more about subscription, please see gql-subscriptions.

Apollo Federation

Example

For more abount subscription, please see Apollo Federation