Added a chalice integration, documentation and tests

Updated release notes and added chalice as a dev dependency
Added catching the json_body value error and removed unused type error
TypeError must be caught here as they payload might not be json
Removed the separate get and post methods
Added the chalice integration to the docs
Update docs/integrations/chalice.md
Added the suggestion to remove $ from the shell commands to be consistent

Co-authored-by: ignormies <bryce.beagle@gmail.com>
Update docs/integrations/chalice.md

Co-authored-by: ignormies <bryce.beagle@gmail.com>
Update strawberry/chalice/views.py

Co-authored-by: ignormies <bryce.beagle@gmail.com>
Update docs/integrations/chalice.md

Co-authored-by: ignormies <bryce.beagle@gmail.com>
Update docs/integrations/chalice.md

Co-authored-by: ignormies <bryce.beagle@gmail.com>
Update docs/integrations/chalice.md

Co-authored-by: ignormies <bryce.beagle@gmail.com>
Added a response type to the documentation

RELEASE.md

@@ -0,0 +1,5 @@
+Release type: patch
+
+Added support for aws chalice, as well as unit tests and documentation, which illustrates example usage.
+The options available for the graphiql view are listed in the documentation.
+

docs/README.md

@@ -49,6 +49,7 @@
 - [Django](./integrations/django.md)
 - [Flask](./integrations/flask.md)
 - [Sanic](./integrations/sanic.md)
+- [Chalice](./integrations/chalice.md)
 - [Pydantic **experimental**](./integrations/pydantic.md)
 
 ## Operations

docs/integrations/chalice.md

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+---
+title: Chalice
+---
+
+# Chalice
+
+Strawberry comes with an AWS Chalice integration. It provides a view that you can
+use to serve your GraphQL schema:
+
+Use the Chalice CLI to create a new project
+```shell
+chalice new-project badger-project
+cd badger-project
+```
+
+Replace the contents of app.py with the following:
+
+```python
+from chalice import Chalice
+from chalice.app import Request, Response
+
+import strawberry
+from strawberry.chalice.views import GraphQLView
+
+app = Chalice(app_name="BadgerProject")
+
+
+@strawberry.type
+class Query:
+    @strawberry.field
+    def greetings(self) -> str:
+        return "hello from the illustrious stack badger"
+
+
+@strawberry.type
+class Mutation:
+    @strawberry.mutation
+    def echo(self, string_to_echo: str) -> str:
+        return string_to_echo
+
+
+schema = strawberry.Schema(query=Query, mutation=Mutation)
+view = GraphQLView(schema=schema, render_graphiql=True)
+
+
+@app.route("/graphql", methods=["GET", "POST"], content_types=["application/json"])
+def handle_graphql() -> Response:
+    request: Request = app.current_request
+    result = view.execute_request(request)
+    return result
+```
+
+And then run `chalice local` to start the localhost
+```shell
+chalice local
+```
+
+GraphiQL will be hosted on localhost:8000/graphql
+
+
+## Options
+
+The `GraphQLView` accepts two options at the moment:
+
+- `schema`: mandatory, the schema created by `strawberry.Schema`.
+- `graphiql`: optional, defaults to `True`, whether to enable the GraphiQL interface.