How do I write a resolver for making multiple API calls to fulfil a GraphQL query using Apollo-iOS on the client side (in my swift project)?
For Example: If, to construct a Person object from a query having name and age parameters - I have to fetch name from a service call and age from another service call and stitch them to form the Person object, then how would the resolver look like and where should I write it?
Any help is appreciated.
I believe GraphQL resolvers are only a concept server-side. The client simply asks for the data. The server is supposed to resolve the query sent by the client so your resolvers should make the necessary calls to different services to be able to resolve the query completely by accessing the single endpoint.
A more in-depth explanation of resolvers in GraphQL: https://medium.com/paypal-engineering/graphql-resolvers-best-practices-cd36fdbcef55
You could write your own swift code to grab data from two separate GraphQL endpoints/services if needed.