Moved django-graphql-view and django-graphiql into graphene-django 😎

.gitignore

@@ -59,20 +59,6 @@ docs/_build/
 # PyBuilder
 target/
 
-
-/tests/django.sqlite
-
-/graphene/index.json
-/graphene/meta.json
-
-/meta.json
-/index.json
-
-/docs/playground/graphene-js/pypyjs-release-nojit/
-/docs/static/playground/lib
-
-/docs/static/playground
-
 # PyCharm
 .idea
 

README.md

@@ -16,6 +16,33 @@ For instaling graphene, just run this command in your shell
 pip install "graphene-django>=1.0.dev"
 ```
 
+### Settings
+
+```python
+INSTALLED_APPS = (
+    # ...
+    'graphene_django',
+)
+
+GRAPHENE = {
+    'SCHEMA': 'app.schema.schema' # Where your Graphene schema lives
+}
+```
+
+### Urls
+
+We need to set up a `GraphQL` endpoint in our Django app, so we can serve the queries.
+
+```python
+from django.conf.urls import url
+from graphene_django.views import GraphQLView
+
+urlpatterns = [
+    # ...
+    url(r'^graphql', GraphQLView.as_view(graphiql=True)),
+]
+```
+
 ## Examples
 
 Here is a simple Django model:

README.rst

@@ -20,6 +20,36 @@ For instaling graphene, just run this command in your shell
 
     pip install "graphene-django>=1.0.dev"
 
+Settings
+~~~~~~~~
+
+.. code:: python
+
+    INSTALLED_APPS = (
+        # ...
+        'graphene_django',
+    )
+
+    GRAPHENE = {
+        'SCHEMA': 'app.schema.schema' # Where your Graphene schema lives
+    }
+
+Urls
+~~~~
+
+We need to set up a ``GraphQL`` endpoint in our Django app, so we can
+serve the queries.
+
+.. code:: python
+
+    from django.conf.urls import url
+    from graphene_django.views import GraphQLView
+
+    urlpatterns = [
+        # ...
+        url(r'^graphql', GraphQLView.as_view(graphiql=True)),
+    ]
+
 Examples
 --------
 

django_test_settings.py

@@ -18,3 +18,17 @@ DATABASES = {
         'NAME': 'django_test.sqlite',
     }
 }
+
+TEMPLATES = [
+    {
+        'BACKEND': 'django.template.backends.django.DjangoTemplates',
+        'DIRS': [],
+        'APP_DIRS': True,
+    },
+]
+
+GRAPHENE = {
+    'SCHEMA': 'graphene_django.tests.schema_view.schema'
+}
+
+ROOT_URLCONF = 'graphene_django.tests.urls'

examples/cookbook/cookbook/settings.py

@@ -37,7 +37,7 @@ INSTALLED_APPS = [
     'django.contrib.sessions',
     'django.contrib.messages',
     'django.contrib.staticfiles',
-    'django_graphiql',
+    'graphene_django',
 
     'cookbook.ingredients.apps.IngredientsConfig',
     'cookbook.recipes.apps.RecipesConfig',
@@ -54,6 +54,10 @@ MIDDLEWARE_CLASSES = [
     'django.middleware.clickjacking.XFrameOptionsMiddleware',
 ]
 
+GRAPHENE = {
+    'SCHEMA': 'cookbook.schema.schema'
+}
+
 ROOT_URLCONF = 'cookbook.urls'
 
 TEMPLATES = [

examples/cookbook/cookbook/urls.py

@@ -1,12 +1,10 @@
 from django.conf.urls import include, url
 from django.contrib import admin
-from django.views.decorators.csrf import csrf_exempt
 
 from cookbook.schema import schema
 from graphene_django.views import GraphQLView
 
 urlpatterns = [
     url(r'^admin/', admin.site.urls),
-    url(r'^graphql', csrf_exempt(GraphQLView.as_view(schema=schema))),
-    url(r'^graphiql', include('django_graphiql.urls')),
+    url(r'^graphql', GraphQLView.as_view(graphiql=True)),
 ]

graphene_django/management/commands/graphql_schema.py

@@ -6,6 +6,8 @@ from optparse import make_option
 from django import get_version as get_django_version
 from django.core.management.base import BaseCommand, CommandError
 
+from graphene_django.settings import graphene_settings
+
 LT_DJANGO_1_8 = StrictVersion(get_django_version()) < StrictVersion('1.8')
 
 if LT_DJANGO_1_8:
@@ -16,7 +18,7 @@ if LT_DJANGO_1_8:
                 type=str,
                 dest='schema',
                 default='',
-                help='Django app containing schema to dump, e.g. myproject.core.schema',
+                help='Django app containing schema to dump, e.g. myproject.core.schema.schema',
             ),
             make_option(
                 '--out',
@@ -35,14 +37,14 @@ else:
                 '--schema',
                 type=str,
                 dest='schema',
-                default=getattr(settings, 'GRAPHENE_SCHEMA', ''),
-                help='Django app containing schema to dump, e.g. myproject.core.schema')
+                default=graphene_settings.SCHEMA,
+                help='Django app containing schema to dump, e.g. myproject.core.schema.schema')
 
             parser.add_argument(
                 '--out',
                 type=str,
                 dest='out',
-                default=getattr(settings, 'GRAPHENE_SCHEMA_OUTPUT', 'schema.json'),
+                default=graphene_settings.SCHEMA_OUTPUT,
                 help='Output file (default: schema.json)')
 
 
@@ -56,14 +58,18 @@ class Command(CommandArguments):
 
     def handle(self, *args, **options):
         from django.conf import settings
-        schema = options.get('schema') or getattr(settings, 'GRAPHENE_SCHEMA', '')
-        out = options.get('out') or getattr(settings, 'GRAPHENE_SCHEMA_OUTPUT', 'schema.json')
+        options_schema = options.get('schema')
+        if options_schema:
+            schema = importlib.import_module(options_schema)
+        else:
+            schema = graphene_settings.SCHEMA
 
-        if schema == '':
-            raise CommandError('Specify schema on GRAPHENE_SCHEMA setting or by using --schema')
-        i = importlib.import_module(schema)
+        out = options.get('out') or graphene_settings.SCHEMA_OUTPUT
 
-        schema_dict = {'data': i.schema.introspect()}
+        if not schema:
+            raise CommandError('Specify schema on GRAPHENE.SCHEMA setting or by using --schema')
+
+        schema_dict = {'data': schema.introspect()}
         self.save_file(out, schema_dict)
 
         style = getattr(self, 'style', None)

graphene_django/settings.py

@@ -0,0 +1,127 @@
+"""
+Settings for Graphene are all namespaced in the GRAPHENE setting.
+For example your project's `settings.py` file might look like this:
+GRAPHENE = {
+    'SCHEMA': 'my_app.schema.schema'
+    'MIDDLEWARE': (
+        'graphene_django.debug.DjangoDebugMiddleware',
+    )
+}
+This module provides the `graphene_settings` object, that is used to access
+Graphene settings, checking for user settings first, then falling
+back to the defaults.
+"""
+from __future__ import unicode_literals
+
+from django.conf import settings
+from django.test.signals import setting_changed
+from django.utils import six
+
+try:
+    import importlib  # Available in Python 3.1+
+except ImportError:
+    from django.utils import importlib  # Will be removed in Django 1.9
+
+
+# Copied shamelessly from Django REST Framework
+
+DEFAULTS = {
+    'SCHEMA': None,
+    'SCHEMA_OUTPUT': 'schema.json',
+    'MIDDLEWARE': (),
+}
+
+if settings.DEBUG:
+    DEFAULTS['MIDDLEWARE'] += (
+        'graphene_django.debug.DjangoDebugMiddleware',
+    )
+
+# List of settings that may be in string import notation.
+IMPORT_STRINGS = (
+    'MIDDLEWARE',
+    'SCHEMA',
+)
+
+
+
+def perform_import(val, setting_name):
+    """
+    If the given setting is a string import notation,
+    then perform the necessary import or imports.
+    """
+    if val is None:
+        return None
+    elif isinstance(val, six.string_types):
+        return import_from_string(val, setting_name)
+    elif isinstance(val, (list, tuple)):
+        return [import_from_string(item, setting_name) for item in val]
+    return val
+
+
+def import_from_string(val, setting_name):
+    """
+    Attempt to import a class from a string representation.
+    """
+    try:
+        # Nod to tastypie's use of importlib.
+        parts = val.split('.')
+        module_path, class_name = '.'.join(parts[:-1]), parts[-1]
+        module = importlib.import_module(module_path)
+        return getattr(module, class_name)
+    except (ImportError, AttributeError) as e:
+        msg = "Could not import '%s' for Graphene setting '%s'. %s: %s." % (val, setting_name, e.__class__.__name__, e)
+        raise ImportError(msg)
+
+
+class GrapheneSettings(object):
+    """
+    A settings object, that allows API settings to be accessed as properties.
+    For example:
+        from graphene_django.settings import settings
+        print(settings.SCHEMA)
+    Any setting with string import paths will be automatically resolved
+    and return the class, rather than the string literal.
+    """
+    def __init__(self, user_settings=None, defaults=None, import_strings=None):
+        if user_settings:
+            self._user_settings = user_settings
+        self.defaults = defaults or DEFAULTS
+        self.import_strings = import_strings or IMPORT_STRINGS
+
+    @property
+    def user_settings(self):
+        if not hasattr(self, '_user_settings'):
+            self._user_settings = getattr(settings, 'GRAPHENE', {})
+        return self._user_settings
+
+    def __getattr__(self, attr):
+        if attr not in self.defaults:
+            raise AttributeError("Invalid Graphene setting: '%s'" % attr)
+
+        try:
+            # Check if present in user settings
+            val = self.user_settings[attr]
+        except KeyError:
+            # Fall back to defaults
+            val = self.defaults[attr]
+
+        # Coerce import strings into classes
+        if attr in self.import_strings:
+            val = perform_import(val, attr)
+
+        # Cache the result
+        setattr(self, attr, val)
+        return val
+
+
+graphene_settings = GrapheneSettings(None, DEFAULTS, IMPORT_STRINGS)
+
+
+def reload_graphene_settings(*args, **kwargs):
+    global graphene_settings
+    setting, value = kwargs['setting'], kwargs['value']
+    if setting == 'GRAPHENE':
+        graphene_settings = GrapheneSettings(value, DEFAULTS, IMPORT_STRINGS)
+
+
+setting_changed.connect(reload_graphene_settings)

graphene_django/templates/graphene/graphiql.html

@@ -0,0 +1,123 @@
+<!--
+The request to this GraphQL server provided the header "Accept: text/html"
+and as a result has been presented GraphiQL - an in-browser IDE for
+exploring GraphQL.
+If you wish to receive JSON, provide the header "Accept: application/json" or
+add "&raw" to the end of the URL within a browser.
+-->
+<!DOCTYPE html>
+<html>
+<head>
+  <style>
+    html, body {
+      height: 100%;
+      margin: 0;
+      overflow: hidden;
+      width: 100%;
+    }
+  </style>
+  <link href="//cdn.jsdelivr.net/graphiql/{{graphiql_version}}/graphiql.css" rel="stylesheet" />
+  <script src="//cdn.jsdelivr.net/fetch/0.9.0/fetch.min.js"></script>
+  <script src="//cdn.jsdelivr.net/react/15.0.1/react.min.js"></script>
+  <script src="//cdn.jsdelivr.net/react/15.0.1/react-dom.min.js"></script>
+  <script src="//cdn.jsdelivr.net/graphiql/{{graphiql_version}}/graphiql.min.js"></script>
+</head>
+<body>
+  <script>
+    // Parse the cookie value for a CSRF token
+    var csrftoken;
+    var cookies = ('; ' + document.cookie).split('; csrftoken=');
+    if (cookies.length == 2)
+      csrftoken = cookies.pop().split(';').shift();
+
+    // Collect the URL parameters
+    var parameters = {};
+    window.location.search.substr(1).split('&').forEach(function (entry) {
+      var eq = entry.indexOf('=');
+      if (eq >= 0) {
+        parameters[decodeURIComponent(entry.slice(0, eq))] =
+          decodeURIComponent(entry.slice(eq + 1));
+      }
+    });
+    // Produce a Location query string from a parameter object.
+    function locationQuery(params) {
+      return '?' + Object.keys(params).map(function (key) {
+        return encodeURIComponent(key) + '=' +
+          encodeURIComponent(params[key]);
+      }).join('&');
+    }
+    // Derive a fetch URL from the current URL, sans the GraphQL parameters.
+    var graphqlParamNames = {
+      query: true,
+      variables: true,
+      operationName: true
+    };
+    var otherParams = {};
+    for (var k in parameters) {
+      if (parameters.hasOwnProperty(k) && graphqlParamNames[k] !== true) {
+        otherParams[k] = parameters[k];
+      }
+    }
+    var fetchURL = locationQuery(otherParams);
+    // Defines a GraphQL fetcher using the fetch API.
+    function graphQLFetcher(graphQLParams) {
+      var headers = {
+        'Accept': 'application/json',
+        'Content-Type': 'application/json'
+      };
+      if (csrftoken) {
+        headers['X-CSRFToken'] = csrftoken;
+      }
+      return fetch(fetchURL, {
+        method: 'post',
+        headers: headers,
+        body: JSON.stringify(graphQLParams),
+        credentials: 'include',
+      }).then(function (response) {
+        return response.text();
+      }).then(function (responseBody) {
+        try {
+          return JSON.parse(responseBody);
+        } catch (error) {
+          return responseBody;
+        }
+      });
+    }
+    // When the query and variables string is edited, update the URL bar so
+    // that it can be easily shared.
+    function onEditQuery(newQuery) {
+      parameters.query = newQuery;
+      updateURL();
+    }
+    function onEditVariables(newVariables) {
+      parameters.variables = newVariables;
+      updateURL();
+    }
+    function onEditOperationName(newOperationName) {
+      parameters.operationName = newOperationName;
+      updateURL();
+    }
+    function updateURL() {
+      history.replaceState(null, null, locationQuery(parameters));
+    }
+    // Render <GraphiQL /> into the body.
+    ReactDOM.render(
+      React.createElement(GraphiQL, {
+        fetcher: graphQLFetcher,
+        onEditQuery: onEditQuery,
+        onEditVariables: onEditVariables,
+        onEditOperationName: onEditOperationName,
+        query: '{{ query|escapejs }}',
+        response: '{{ result|escapejs }}',
+        {% if variables %}
+        variables: '{{ variables|escapejs }}',
+        {% endif %}
+        {% if operationName %}
+        operationName: '{{ operation_name|escapejs }}',
+        {% endif %}
+      }),
+      document.body
+    );
+  </script>
+</body>
+</html>

graphene_django/tests/schema_view.py

@@ -0,0 +1,32 @@
+import graphene
+from graphene import Schema, ObjectType, relay
+
+from ..types import DjangoObjectType
+from .models import Article, Reporter
+
+
+class QueryRoot(ObjectType):
+
+    thrower = graphene.String(required=True)
+    request = graphene.String(required=True)
+    test = graphene.String(who=graphene.String())
+    
+    def resolve_thrower(self, args, context, info):
+        raise Exception("Throws!")
+    
+    def resolve_request(self, args, context, info):
+        request = context
+        return request.GET.get('q')
+
+    def resolve_test(self, args, context, info):
+        return 'Hello %s' % (args.get('who') or 'World')
+
+
+class MutationRoot(ObjectType):
+    write_test = graphene.Field(QueryRoot)
+
+    def resolve_write_test(self, args, context, info):
+        return QueryRoot()
+
+
+schema = Schema(query=QueryRoot, mutation=MutationRoot)

graphene_django/tests/test_command.py

@@ -5,7 +5,6 @@ from six import StringIO
 
 @patch('graphene_django.management.commands.graphql_schema.Command.save_file')
 def test_generate_file_on_call_graphql_schema(savefile_mock, settings):
-    settings.GRAPHENE_SCHEMA = 'graphene_django.tests.schema'
     out = StringIO()
     management.call_command('graphql_schema', schema='', stdout=out)
     assert "Successfully dumped GraphQL schema to schema.json" in out.getvalue()

graphene_django/tests/test_views.py

@@ -1,57 +1,421 @@
+import pytest
 import json
 
+try:
+    from urllib import urlencode
+except ImportError:
+    from urllib.parse import urlencode
 
-def format_response(response):
+
+def url_string(**url_params):
+    string = '/graphql'
+
+    if url_params:
+        string += '?' + urlencode(url_params)
+
+    return string
+
+
+def response_json(response):
     return json.loads(response.content.decode())
 
 
-def test_client_get_good_query(settings, client):
-    settings.ROOT_URLCONF = 'graphene_django.tests.urls'
-    response = client.get('/graphql', {'query': '{ human { headline } }'})
-    json_response = format_response(response)
-    expected_json = {
+j = lambda **kwargs: json.dumps(kwargs)
+
+
+def test_graphiql_is_enabled(client):
+    response = client.get(url_string(), HTTP_ACCEPT='text/html')
+    assert response.status_code == 200
+
+
+def test_allows_get_with_query_param(client):
+    response = client.get(url_string(query='{test}'))
+
+    assert response.status_code == 200
+    assert response_json(response) == {
+        'data': {'test': "Hello World"}
+    }
+
+
+def test_allows_get_with_variable_values(client):
+    response = client.get(url_string(
+        query='query helloWho($who: String){ test(who: $who) }',
+        variables=json.dumps({'who': "Dolly"})
+    ))
+
+    assert response.status_code == 200
+    assert response_json(response) == {
+        'data': {'test': "Hello Dolly"}
+    }
+
+
+def test_allows_get_with_operation_name(client):
+    response = client.get(url_string(
+        query='''
+        query helloYou { test(who: "You"), ...shared }
+        query helloWorld { test(who: "World"), ...shared }
+        query helloDolly { test(who: "Dolly"), ...shared }
+        fragment shared on QueryRoot {
+          shared: test(who: "Everyone")
+        }
+        ''',
+        operationName='helloWorld'
+    ))
+
+    assert response.status_code == 200
+    assert response_json(response) == {
         'data': {
-            'human': {
-                'headline': None
+            'test': 'Hello World',
+            'shared': 'Hello Everyone'
         }
     }
+
+
+def test_reports_validation_errors(client):
+    response = client.get(url_string(
+        query='{ test, unknownOne, unknownTwo }'
+    ))
+
+    assert response.status_code == 400
+    assert response_json(response) == {
+        'errors': [
+            {
+                'message': 'Cannot query field "unknownOne" on type "QueryRoot".',
+                'locations': [{'line': 1, 'column': 9}]
+            },
+            {
+                'message': 'Cannot query field "unknownTwo" on type "QueryRoot".',
+                'locations': [{'line': 1, 'column': 21}]
+            }
+        ]
     }
-    assert json_response == expected_json
 
 
-def test_client_get_good_query_with_raise(settings, client):
-    settings.ROOT_URLCONF = 'graphene_django.tests.urls'
-    response = client.get('/graphql', {'query': '{ human { raises } }'})
-    json_response = format_response(response)
-    assert json_response['errors'][0]['message'] == 'This field should raise exception'
-    assert json_response['data']['human']['raises'] is None
+def test_errors_when_missing_operation_name(client):
+    response = client.get(url_string(
+        query='''
+        query TestQuery { test }
+        mutation TestMutation { writeTest { test } }
+        '''
+    ))
+
+    assert response.status_code == 400
+    assert response_json(response) == {
+        'errors': [
+            {
+                'message': 'Must provide operation name if query contains multiple operations.'
+            }
+        ]
+    }
 
 
-def test_client_post_good_query_json(settings, client):
-    settings.ROOT_URLCONF = 'graphene_django.tests.urls'
-    response = client.post(
-        '/graphql', json.dumps({'query': '{ human { headline } }'}), 'application/json')
-    json_response = format_response(response)
-    expected_json = {
+def test_errors_when_sending_a_mutation_via_get(client):
+    response = client.get(url_string(
+        query='''
+        mutation TestMutation { writeTest { test } }
+        '''
+    ))
+    assert response.status_code == 405
+    assert response_json(response) == {
+        'errors': [
+            {
+                'message': 'Can only perform a mutation operation from a POST request.'
+            }
+        ]
+    }
+
+
+def test_errors_when_selecting_a_mutation_within_a_get(client):
+    response = client.get(url_string(
+        query='''
+        query TestQuery { test }
+        mutation TestMutation { writeTest { test } }
+        ''',
+        operationName='TestMutation'
+    ))
+
+    assert response.status_code == 405
+    assert response_json(response) == {
+        'errors': [
+            {
+                'message': 'Can only perform a mutation operation from a POST request.'
+            }
+        ]
+    }
+
+
+def test_allows_mutation_to_exist_within_a_get(client):
+    response = client.get(url_string(
+        query='''
+        query TestQuery { test }
+        mutation TestMutation { writeTest { test } }
+        ''',
+        operationName='TestQuery'
+    ))
+
+    assert response.status_code == 200
+    assert response_json(response) == {
+        'data': {'test': "Hello World"}
+    }
+
+
+def test_allows_post_with_json_encoding(client):
+    response = client.post(url_string(), j(query='{test}'), 'application/json')
+
+    assert response.status_code == 200
+    assert response_json(response) == {
+        'data': {'test': "Hello World"}
+    }
+
+
+def test_allows_sending_a_mutation_via_post(client):
+    response = client.post(url_string(), j(query='mutation TestMutation { writeTest { test } }'), 'application/json')
+
+    assert response.status_code == 200
+    assert response_json(response) == {
+        'data': {'writeTest': {'test': 'Hello World'}}
+    }
+
+
+def test_allows_post_with_url_encoding(client):
+    response = client.post(url_string(), urlencode(dict(query='{test}')), 'application/x-www-form-urlencoded')
+
+    assert response.status_code == 200
+    assert response_json(response) == {
+        'data': {'test': "Hello World"}
+    }
+
+
+def test_supports_post_json_query_with_string_variables(client):
+    response = client.post(url_string(), j(
+        query='query helloWho($who: String){ test(who: $who) }',
+        variables=json.dumps({'who': "Dolly"})
+    ), 'application/json')
+
+    assert response.status_code == 200
+    assert response_json(response) == {
+        'data': {'test': "Hello Dolly"}
+    }
+
+
+def test_supports_post_json_query_with_json_variables(client):
+    response = client.post(url_string(), j(
+        query='query helloWho($who: String){ test(who: $who) }',
+        variables={'who': "Dolly"}
+    ), 'application/json')
+
+    assert response.status_code == 200
+    assert response_json(response) == {
+        'data': {'test': "Hello Dolly"}
+    }
+
+
+def test_supports_post_url_encoded_query_with_string_variables(client):
+    response = client.post(url_string(), urlencode(dict(
+        query='query helloWho($who: String){ test(who: $who) }',
+        variables=json.dumps({'who': "Dolly"})
+    )), 'application/x-www-form-urlencoded')
+
+    assert response.status_code == 200
+    assert response_json(response) == {
+        'data': {'test': "Hello Dolly"}
+    }
+
+
+def test_supports_post_json_quey_with_get_variable_values(client):
+    response = client.post(url_string(
+        variables=json.dumps({'who': "Dolly"})
+    ), j(
+        query='query helloWho($who: String){ test(who: $who) }',
+    ), 'application/json')
+
+    assert response.status_code == 200
+    assert response_json(response) == {
+        'data': {'test': "Hello Dolly"}
+    }
+
+
+def test_post_url_encoded_query_with_get_variable_values(client):
+    response = client.post(url_string(
+        variables=json.dumps({'who': "Dolly"})
+    ), urlencode(dict(
+        query='query helloWho($who: String){ test(who: $who) }',
+    )), 'application/x-www-form-urlencoded')
+
+    assert response.status_code == 200
+    assert response_json(response) == {
+        'data': {'test': "Hello Dolly"}
+    }
+
+
+def test_supports_post_raw_text_query_with_get_variable_values(client):
+    response = client.post(url_string(
+        variables=json.dumps({'who': "Dolly"})
+    ),
+        'query helloWho($who: String){ test(who: $who) }',
+        'application/graphql'
+    )
+
+    assert response.status_code == 200
+    assert response_json(response) == {
+        'data': {'test': "Hello Dolly"}
+    }
+
+
+def test_allows_post_with_operation_name(client):
+    response = client.post(url_string(), j(
+        query='''
+        query helloYou { test(who: "You"), ...shared }
+        query helloWorld { test(who: "World"), ...shared }
+        query helloDolly { test(who: "Dolly"), ...shared }
+        fragment shared on QueryRoot {
+          shared: test(who: "Everyone")
+        }
+        ''',
+        operationName='helloWorld'
+    ), 'application/json')
+
+    assert response.status_code == 200
+    assert response_json(response) == {
         'data': {
-            'human': {
-                'headline': None
+            'test': 'Hello World',
+            'shared': 'Hello Everyone'
         }
     }
-    }
-    assert json_response == expected_json
 
 
-def test_client_post_good_query_graphql(settings, client):
-    settings.ROOT_URLCONF = 'graphene_django.tests.urls'
-    response = client.post(
-        '/graphql', '{ human { headline } }', 'application/graphql')
-    json_response = format_response(response)
-    expected_json = {
+def test_allows_post_with_get_operation_name(client):
+    response = client.post(url_string(
+        operationName='helloWorld'
+    ), '''
+    query helloYou { test(who: "You"), ...shared }
+    query helloWorld { test(who: "World"), ...shared }
+    query helloDolly { test(who: "Dolly"), ...shared }
+    fragment shared on QueryRoot {
+      shared: test(who: "Everyone")
+    }
+    ''',
+        'application/graphql')
+
+    assert response.status_code == 200
+    assert response_json(response) == {
         'data': {
-            'human': {
-                'headline': None
+            'test': 'Hello World',
+            'shared': 'Hello Everyone'
         }
     }
+
+
+@pytest.mark.urls('tests.urls_pretty')
+def test_supports_pretty_printing(client):
+    response = client.get(url_string(query='{test}'))
+
+    assert response.content.decode() == (
+        '{\n'
+        '  "data": {\n'
+        '    "test": "Hello World"\n'
+        '  }\n'
+        '}'
+    )
+
+
+def test_supports_pretty_printing_by_request(client):
+    response = client.get(url_string(query='{test}', pretty='1'))
+
+    assert response.content.decode() == (
+        '{\n'
+        '  "data": {\n'
+        '    "test": "Hello World"\n'
+        '  }\n'
+        '}'
+    )
+
+
+def test_handles_field_errors_caught_by_graphql(client):
+    response = client.get(url_string(query='{thrower}'))
+    assert response.status_code == 200
+    assert response_json(response) == {
+        'data': None,
+        'errors': [{'locations': [{'column': 2, 'line': 1}], 'message': 'Throws!'}]
+    }
+
+
+def test_handles_syntax_errors_caught_by_graphql(client):
+    response = client.get(url_string(query='syntaxerror'))
+    assert response.status_code == 400
+    assert response_json(response) == {
+        'errors': [{'locations': [{'column': 1, 'line': 1}],
+                    'message': 'Syntax Error GraphQL request (1:1) '
+                               'Unexpected Name "syntaxerror"\n\n1: syntaxerror\n   ^\n'}]
+    }
+
+
+def test_handles_errors_caused_by_a_lack_of_query(client):
+    response = client.get(url_string())
+
+    assert response.status_code == 400
+    assert response_json(response) == {
+        'errors': [{'message': 'Must provide query string.'}]
+    }
+
+
+def test_handles_invalid_json_bodies(client):
+    response = client.post(url_string(), '[]', 'application/json')
+
+    assert response.status_code == 400
+    assert response_json(response) == {
+        'errors': [{'message': 'POST body sent invalid JSON.'}]
+    }
+
+
+def test_handles_incomplete_json_bodies(client):
+    response = client.post(url_string(), '{"query":', 'application/json')
+
+    assert response.status_code == 400
+    assert response_json(response) == {
+        'errors': [{'message': 'POST body sent invalid JSON.'}]
+    }
+
+
+def test_handles_plain_post_text(client):
+    response = client.post(url_string(
+        variables=json.dumps({'who': "Dolly"})
+    ),
+        'query helloWho($who: String){ test(who: $who) }',
+        'text/plain'
+    )
+    assert response.status_code == 400
+    assert response_json(response) == {
+        'errors': [{'message': 'Must provide query string.'}]
+    }
+
+
+def test_handles_poorly_formed_variables(client):
+    response = client.get(url_string(
+        query='query helloWho($who: String){ test(who: $who) }',
+        variables='who:You'
+    ))
+    assert response.status_code == 400
+    assert response_json(response) == {
+        'errors': [{'message': 'Variables are invalid JSON.'}]
+    }
+
+
+def test_handles_unsupported_http_methods(client):
+    response = client.put(url_string(query='{test}'))
+    assert response.status_code == 405
+    assert response['Allow'] == 'GET, POST'
+    assert response_json(response) == {
+        'errors': [{'message': 'GraphQL only supports GET and POST requests.'}]
+    }
+
+
+def test_passes_request_into_context_request(client):
+    response = client.get(url_string(query='{request}', q='testing'))
+
+    assert response.status_code == 200
+    assert response_json(response) == {
+        'data': {
+            'request': 'testing'
+        }
     }
-    assert json_response == expected_json

graphene_django/tests/urls.py

@@ -1,8 +1,7 @@
 from django.conf.urls import url
 
 from ..views import GraphQLView
-from .schema import schema
 
 urlpatterns = [
-    url(r'^graphql', GraphQLView.as_view(schema=schema)),
+    url(r'^graphql', GraphQLView.as_view(graphiql=True)),
 ]

graphene_django/views.py

@@ -1,10 +1,252 @@
-from graphql_django_view import GraphQLView as BaseGraphQLView
+import re
+import json
+import six
+
+from django.http import HttpResponse, HttpResponseNotAllowed
+from django.http.response import HttpResponseBadRequest
+from django.views.generic import View
+from django.shortcuts import render
+
+from graphql import Source, parse, execute, validate
+from graphql.error import GraphQLError, format_error as format_graphql_error
+from graphql.execution import ExecutionResult
+from graphql.type.schema import GraphQLSchema
+from graphql.execution.middleware import MiddlewareManager
+from graphql.utils.get_operation_ast import get_operation_ast
+
+from .settings import graphene_settings
 
 
-class GraphQLView(BaseGraphQLView):
+class HttpError(Exception):
+    def __init__(self, response, message=None, *args, **kwargs):
+        self.response = response
+        self.message = message = message or response.content.decode()
+        super(HttpError, self).__init__(message, *args, **kwargs)
 
-    def __init__(self, schema, **kwargs):
-        super(GraphQLView, self).__init__(
-            schema=schema,
-            **kwargs
+
+def get_accepted_content_types(request):
+    def qualify(x):
+        parts = x.split(';', 1)
+        if len(parts) == 2:
+            match = re.match(r'(^|;)q=(0(\.\d{,3})?|1(\.0{,3})?)(;|$)',
+                             parts[1])
+            if match:
+                return parts[0], float(match.group(2))
+        return parts[0], 1
+
+    raw_content_types = request.META.get('HTTP_ACCEPT', '*/*').split(',')
+    qualified_content_types = map(qualify, raw_content_types)
+    return list(x[0] for x in sorted(qualified_content_types,
+                                     key=lambda x: x[1], reverse=True))
+
+
+class GraphQLView(View):
+    graphiql_version = '0.7.8'
+    graphiql_template = 'graphene/graphiql.html'
+
+    graphiql = False
+    executor = None
+    middleware = None
+    root_value = None
+    pretty = False
+
+    def __init__(self, schema=None, executor=None, middleware=None, root_value=None, graphiql=False, pretty=False):
+        if not schema:
+            schema = graphene_settings.SCHEMA
+
+        if middleware is None:
+            middleware = graphene_settings.MIDDLEWARE
+
+        self.schema = schema
+        self.middleware = MiddlewareManager(middleware)
+        self.executor = executor
+        self.root_value = root_value
+        self.pretty = pretty
+        self.graphiql = graphiql
+
+        assert isinstance(self.schema, GraphQLSchema), 'A Schema is required to be provided to GraphQLView.'
+
+    # noinspection PyUnusedLocal
+    def get_root_value(self, request):
+        return self.root_value
+
+    def get_middleware(self, request):
+        return self.middleware
+
+    def get_context(self, request):
+        return request
+
+    def dispatch(self, request, *args, **kwargs):
+        try:
+            if request.method.lower() not in ('get', 'post'):
+                raise HttpError(HttpResponseNotAllowed(['GET', 'POST'], 'GraphQL only supports GET and POST requests.'))
+
+            data = self.parse_body(request)
+            show_graphiql = self.graphiql and self.can_display_graphiql(request, data)
+
+            query, variables, operation_name = self.get_graphql_params(request, data)
+
+            execution_result = self.execute_graphql_request(
+                request,
+                data,
+                query,
+                variables,
+                operation_name,
+                show_graphiql
             )
+
+            if execution_result:
+                response = {}
+
+                if execution_result.errors:
+                    response['errors'] = [self.format_error(e) for e in execution_result.errors]
+
+                if execution_result.invalid:
+                    status_code = 400
+                else:
+                    status_code = 200
+                    response['data'] = execution_result.data
+
+                result = self.json_encode(request, response, pretty=show_graphiql)
+            else:
+                result = None
+
+            if show_graphiql:
+                return self.render_graphiql(
+                    request,
+                    graphiql_version=self.graphiql_version,
+                    query=query or '',
+                    variables=variables or '',
+                    operation_name=operation_name or '',
+                    result=result or ''
+                )
+
+            return HttpResponse(
+                status=status_code,
+                content=result,
+                content_type='application/json'
+            )
+
+        except HttpError as e:
+            response = e.response
+            response['Content-Type'] = 'application/json'
+            response.content = self.json_encode(request, {
+                'errors': [self.format_error(e)]
+            })
+            return response
+
+    def render_graphiql(self, request, **data):
+        return render(request, self.graphiql_template, data)
+
+    def json_encode(self, request, d, pretty=False):
+        if not (self.pretty or pretty) and not request.GET.get('pretty'):
+            return json.dumps(d, separators=(',', ':'))
+
+        return json.dumps(d, sort_keys=True,
+                          indent=2, separators=(',', ': '))
+
+    # noinspection PyBroadException
+    def parse_body(self, request):
+        content_type = self.get_content_type(request)
+
+        if content_type == 'application/graphql':
+            return {'query': request.body.decode()}
+
+        elif content_type == 'application/json':
+            try:
+                request_json = json.loads(request.body.decode('utf-8'))
+                assert isinstance(request_json, dict)
+                return request_json
+            except:
+                raise HttpError(HttpResponseBadRequest('POST body sent invalid JSON.'))
+
+        elif content_type in ['application/x-www-form-urlencoded', 'multipart/form-data']:
+            return request.POST
+
+        return {}
+
+    def execute(self, *args, **kwargs):
+        return execute(self.schema, *args, **kwargs)
+
+    def execute_graphql_request(self, request, data, query, variables, operation_name, show_graphiql=False):
+        if not query:
+            if show_graphiql:
+                return None
+            raise HttpError(HttpResponseBadRequest('Must provide query string.'))
+
+        source = Source(query, name='GraphQL request')
+
+        try:
+            document_ast = parse(source)
+            validation_errors = validate(self.schema, document_ast)
+            if validation_errors:
+                return ExecutionResult(
+                    errors=validation_errors,
+                    invalid=True,
+                )
+        except Exception as e:
+            return ExecutionResult(errors=[e], invalid=True)
+
+        if request.method.lower() == 'get':
+            operation_ast = get_operation_ast(document_ast, operation_name)
+            if operation_ast and operation_ast.operation != 'query':
+                if show_graphiql:
+                    return None
+                
+                raise HttpError(HttpResponseNotAllowed(
+                    ['POST'], 'Can only perform a {} operation from a POST request.'.format(operation_ast.operation)
+                ))
+
+        try:
+            return self.execute(
+                document_ast,
+                root_value=self.get_root_value(request),
+                variable_values=variables,
+                operation_name=operation_name,
+                context_value=self.get_context(request),
+                middlewares=self.get_middleware(request),
+                executor=self.executor,
+            )
+        except Exception as e:
+            return ExecutionResult(errors=[e], invalid=True)
+
+    @classmethod
+    def can_display_graphiql(cls, request, data):
+        raw = 'raw' in request.GET or 'raw' in data
+        return not raw and cls.request_wants_html(request)
+
+    @classmethod
+    def request_wants_html(cls, request):
+        accepted = get_accepted_content_types(request)
+        html_index = accepted.count('text/html')
+        json_index = accepted.count('application/json')
+
+        return html_index > json_index
+
+    @staticmethod
+    def get_graphql_params(request, data):
+        query = request.GET.get('query') or data.get('query')
+        variables = request.GET.get('variables') or data.get('variables')
+
+        if variables and isinstance(variables, six.text_type):
+            try:
+                variables = json.loads(variables)
+            except:
+                raise HttpError(HttpResponseBadRequest('Variables are invalid JSON.'))
+
+        operation_name = request.GET.get('operationName') or data.get('operationName')
+
+        return query, variables, operation_name
+
+    @staticmethod
+    def format_error(error):
+        if isinstance(error, GraphQLError):
+            return format_graphql_error(error)
+
+        return {'message': six.text_type(error)}
+
+    @staticmethod
+    def get_content_type(request):
+        meta = request.META
+        content_type = meta.get('CONTENT_TYPE', meta.get('HTTP_CONTENT_TYPE', ''))
+        return content_type.split(';', 1)[0].lower()