Graphene resolver for an object that has no model

Question

I\'m trying to write a resolver that returns an object created by a function. It gets the data from memcached, so there is no actual model I can tie it to.

Answer 1

GraphQL is designed to be backend agnostic, and Graphene is build to support various python backends like Django and SQLAlchemy. To integrate your custom backend, simply define your models using Graphene's type system and roll out your own resolvers.

import graphene
import time

class TextLogEntry(graphene.ObjectType):

    log_id = graphene.Int()
    text = graphene.String()
    timestamp = graphene.Float()
    level = graphene.String()

def textlog_resolver(root, args, context, info):
    log_id = args.get('log_id') # 123
    # fetch object...
    return TextLogEntry(
        log_id=log_id,
        text='Hello World',
        timestamp=time.time(),
        level='debug'
    )

class Query(graphene.ObjectType):

    textlog_entry = graphene.Field(
        TextLogEntry,
        log_id=graphene.Argument(graphene.Int, required=True),
        resolver=textlog_resolver
    )


schema = graphene.Schema(
    query=Query
)