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apollo-ios v1.0.0-alpha.1 Release Notes

  • 🚀 This is the first Alpha Release of Apollo iOS 1.0. This first major version will include a new code generation engine, better generated models, and many syntax and performance improvements across the entire library. The primary goal of Apollo iOS 1.0 is to stabilize the API of the model layer and provide a foundation for future feature additions and evolution of the library.

    What’s New

    • The size of generated code has been reduced dramatically. In the most complex operations, the generated code can be up to 90% smaller than in the previous version.
    • Generated response objects are more powerful and easier to consume.
      • The response objects now intelligently merge fields from not only their parents, but also other matching siblings.
    query AnimalQuery {
  allAnimals {
    species
    ... on Pet {
      name
    }
    ... on Cat {
      furColor
    }
}

    💻 In the past, the AsCat model would have fields for species, and furColor, but to access the name field, you would need to keep a reference to the AllAnimal object and call AsPet.name. This means that you couldn’t just pass the AsCat object to a UI component.

    🔀 In 1.0, because we know that Cat implements the Pet interface, the name field is merged into the Cat object.

    Any property that should exist based on the type of the object will be accessible. This makes consuming our generated response objects in your applications much easier. This should greatly reduce the need for view models to wrap our generated response objects.

    • The code generation engine is now written in native Swift! This makes it easier for Swift developers to contribute to the project or alter the generated code for their specific needs! In future iterations, we hope to open up the code generation templating API to allow for even easier customization of your generated code!
    • 🚀 Computation of Cache Keys is protocol oriented now. Instead of a single cacheKeyForObject closure on your ApolloClient, you can implement cache key computation on individual object types with the CacheKeyProvider protocol. See Cache Key Resolution in the RFC for more information.