rxa

RxApollo

RxSwift extensions for Apollo

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4yrs ago

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License

MIT

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RxApollo

RxSwift extensions for Apollo.

Installation

Carthage

github "scottrhoyt/RxApollo"

Manual

Add RxApollo.swift to your project.

Usage

All the reactive extensions are encapsulated in the rx property of an ApolloClient.

import Apollo
import RxSwift
import RxApollo

let apollo: ApolloClient
let disposeBag = DisposeBag()

Fetch

Fetching works just how you would expect it to:

// Let's get our hero's name and print it or the error if there is one.
apollo.rx.fetch(query: HeroNameQuery())
  .map { $0.hero?.name }
  .subscribe(onNext: { heroName in
    print("Our hero's name is \(heroName).")
  }, onError: { error in
    print("Received error: \(error).")
  })
  .disposed(by: disposeBag)

Watch

// Let's watch to see if our hero's name changes and print it or the error if there is one.
apollo.rx.watch(query: HeroNameQuery())
  .map { $0.hero?.name }
  .subscribe(onNext: { heroName in
    print("Our hero's name is \(heroName).")
  }, onError: { error in
    print("Received error: \(error).")
  })
  .disposed(by: disposeBag)

Watching also works quite well with using RxCocoa bindings:

import RxCocoa

let heroField: UITextField

// Let's watch to see if our hero's name changes and set a text field.
apollo.rx.watch(query: HeroNameQuery())
  .map { $0.hero?.name }
  .asDriver(onErrorJustReturn: nil)
  .drive(heroField.rx.text)
  .disposed(by: disposeBag)

Mutate

Mutations follow the same pattern as well:

// Let's upvote a post.
apollo.rx.perform(mutation: UpvotePostMutation(postId: postId))
  .subscribe()
  .disposed(by: disposeBag)

License

MIT

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