alimony/strawberry-graphql-django

Strawberry GraphQL Django extension

Strawberry GraphQL Django integration

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This package provides powerful tools to generate GraphQL types, queries, mutations and resolvers from Django models.

Installing strawberry-graphql-django package from the python package repository.

pip install strawberry-graphql-django

Supported Features

• GraphQL type generation from models
• Filtering, pagination and ordering
• Basic create, retrieve, update and delete (CRUD) types and mutations
• Basic Django auth support, current user query, login and logout mutations
• Django sync and async views
• Permission extension using django's permissioning system
• Relay support with automatic resolvers generation
• Query optimization to improve performance and avoid common pitfalls (e.g n+1)
• Debug Toolbar integration with graphiql to display metrics like SQL queries
• Unit test integration

Basic Usage

# models.py

from django.db import models

class Fruit(models.Model):
    """A tasty treat"""
    name = models.CharField(
        max_length=20,
    )
    color = models.ForeignKey(
        "Color",
        on_delete=models.CASCADE,
        related_name="fruits",
        blank=True,
        null=True,
    )

class Color(models.Model):
    name = models.CharField(
        max_length=20,
        help_text="field description",
    )

# types.py

import strawberry_django
from strawberry import auto

from . import models

@strawberry_django.type(models.Fruit)
class Fruit:
    id: auto
    name: auto
    color: 'Color'

@strawberry_django.type(models.Color)
class Color:
    id: auto
    name: auto
    fruits: list[Fruit]

# schema.py

import strawberry
import strawberry_django
from strawberry_django.optimizer import DjangoOptimizerExtension

from .types import Fruit

@strawberry.type
class Query:
    fruits: list[Fruit] = strawberry_django.field()

schema = strawberry.Schema(
    query=Query,
    extensions=[
        DjangoOptimizerExtension,  # not required, but highly recommended
    ],
)

# urls.py

from django.urls import include, path
from strawberry.django.views import AsyncGraphQLView

from .schema import schema

urlpatterns = [
    path('graphql', AsyncGraphQLView.as_view(schema=schema)),
]

Code above generates following schema.

"""
A tasty treat
"""
type Fruit {
  id: ID!
  name: String!
  color: Color
}

type Color {
  id: ID!
  """
  field description
  """
  name: String!
  fruits: [Fruit!]
}

type Query {
  fruits: [Fruit!]!
}