graphene/docs/pages/docs/introspection-schema.md
2016-04-01 22:34:34 +02:00

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---
title: Introspection Schema
description: A guide to instrospection schema in Django
---
# Introspection Schema
Relay uses [Babel Relay Plugin](https://facebook.github.io/relay/docs/guides-babel-plugin.html)
that requires you to provide your GraphQL schema data.
Graphene comes with a management command for Django to dump your schema data to
`schema.json` that is compatible with babel-relay-plugin.
## Usage
Include `graphene.contrib.django` to `INSTALLED_APPS` in you project settings:
```python
INSTALLED_APPS += ('graphene.contrib.django')
```
Assuming your Graphene schema is at `tutorial.quickstart.schema`, run the command:
```bash
./manage.py graphql_schema --schema tutorial.quickstart.schema --out schema.json
```
It dumps your full introspection schema to `schema.json` inside your project root
directory. Point `babel-relay-plugin` to this file and you're ready to use Relay
with Graphene GraphQL implementation.
## Advanced Usage
To simplify the command to `./manage.py graphql_schema`, you can specify the
parameters in your settings.py:
```python
GRAPHENE_SCHEMA = 'tutorial.quickstart.schema'
GRAPHENE_SCHEMA_OUTPUT = 'data/schema.json' # defaults to schema.json
```
Running `./manage.py graphql_schema` dumps your schema to
`<project root>/data/schema.json`.
## Help
Run `./manage.py graphql_schema -h` for command usage.