Graphql-server

**Full Changelog**: https://github.com/graphql-python/graphql-server/compare/v3.0.0b6...v3.0.0b7

New Contributors
* kiendang made their first contribution in https://github.com/graphql-python/graphql-server/pull/99
* leonardwellthy made their first contribution in https://github.com/graphql-python/graphql-server/pull/106

**Full Changelog**: https://github.com/graphql-python/graphql-server/compare/v3.0.0b5...v3.0.0b6

- Empty fields are not contained in formatted errors any more
- Accept Graphene wrapped GraphQL schemas
- Update GraphQL-core from 3.1 to 3.2 (85)

* Add support for validation rules (83)

This is the second beta version of **graphql-server**

This version only introduces a small fix for async mode when `graphiql` option is enabled for aiohttp and sanic (67).

Also updates the GH CI to submit the coverage to codecov.

This is the first beta version of **graphql-server**.

This is based on GraphQL-core 3 and supports Python 3.6+ along with other nice features from graphql.

The main changes on this version are:

- Now supports all graphql-core 3 features and removes unsupported ones (36):
- No longer supports executor features (was only at graphql-core 2). (40)
- All server integrations (Flask, Webob, Sanic, aiohttp) are merged into this package to provide a better development workflow by providing the same changes to all of them. (37 38 42 45)
- Now all server integration docs are available at this repo. (54)
- Update graphiql to 1.0.3 and brings some latest features like passing and persisting headers, subscriptions, etc. (49 55)
- Improve the parsing and validation steps and also allows passing custom validation rules and limit the number of reported errors. (53)