Magql-SQLAlchemy

Magql is a GraphQL framework for Python. It's pronounced "magical", and it is! This extension allows generating a complete API from SQLAlchemy database models. After the schema is generated, it can be modified to add, remove, or change any behavior. Here's some of the features Magql-SQLAlchemy provides:

• item and list queries, and create, update, and delete
  mutations for each model.
• Database queries are efficient, using SQLAlchemy's relationship loading
  techniques to eagerly load relationships that are present anywhere in the
  operation structure.
• The list query can be filtered using multiple rules. Attributes can be
  filtered across relationships. Rules can be grouped and joined using AND and
  OR. Lists can be sorted by any column and paginated.
• The create mutation recognizes null and default column values. The update
  mutation allows updating any field independently.
• The create and update mutations validate unique constraints.
• A universal search query to search all string columns of all models.
• A check_delete query to check the effects of deleting a row before doing so.