Have you had experience working with GraphQL and implementing it in projects?

Yes, I have experience working with GraphQL in several Python projects. I usually used the Graphene library, which makes it easy to create GraphQL schemas and resolvers.

Here's a simple example of a GraphQL server in Python using Graphene and Flask:

from flask import Flask
from flask_graphql import GraphQLView
import graphene

class Query(graphene.ObjectType):
    hello = graphene.String(name=graphene.String(default_value="World"))

    def resolve_hello(self, info, name):
        return f'Hello {name}!'

schema = graphene.Schema(query=Query)

app = Flask(__name__)
app.add_url_rule('/graphql', view_func=GraphQLView.as_view('graphql', schema=schema, graphiql=True))

if __name__ == '__main__':
    app.run()

GraphQL was used in projects to optimize API requests, allowing clients to request only the necessary data and combine multiple requests into one.