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@redryerye
࠷దͳiOSͷ
GraphQLΫϥΠΞϯτΛٻΊͯ
Finding alternatives for GraphQL client for iOS
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Yuki Yamamoto
@redryerye
iOS Engineer @
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Last year, my team decided to use
GraphQL for our new feature 🏃
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A new co-working space has
opened in Shimokitazawa
GraphQL is used in the new seat reservation
featur
e
(Both iOS/Android)
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GraphQL is used
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GraphQL is used with apollo-ios
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GraphQL is used with apollo-ios
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About apollo-ios
• The most popular open-sourced GraphQL client library for iOS
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About apollo-ios
• The most popular open-sourced GraphQL client library for iOS
• Used in production by many companies around the world
Github uses Apollo client
potatotips #61
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Apollo is great!
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But it can be a hassle 🧐
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• Explaining the hurdle I had in using Apollo
Today, I will be..
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Today, I will be..
• Explaining the hurdle I had in using Apollo
• Looking at other alternatives
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Today, I will be..
• Explaining the hurdle I had in using Apollo
• Looking at other alternatives
New to GraphQL?
The details of GraphQL will not be covered here.
However, you will probably able to understand this talk since I
will be explaining about the implementation one by one 😉
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Apollo iOS: Things I like about it
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Apollo iOS: Things I like about it
1. Strong community
2. Guarantees compile time type safety
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Apollo iOS: Things I like about it
1. Strong community
2. Guarantees compile time type safety
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Apollo iOS has a strong community
• Actively maintained by Apollo, which is a GraphQL focused company
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• Actively maintained by Apollo, which is a GraphQL focused company
Had seen an amazing work done in the community by the
team, especially by Ellen 😭
Apollo iOS has a strong community
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• Actively maintained by Apollo, which is a GraphQL focused company
• Easy to
fi
nd resources about the library
Apollo iOS has a strong community
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Apollo iOS: Things I like about it
1. Strong community
2. Guarantees compile time type safety
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Apollo iOS: Things I like about it
1. Strong community
2. Guarantees compile time type safety
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What does this mean? 🤔
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No content
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No content
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Queries are
fl
exible
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No content
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No content
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Query-speci
fi
c nested structs will be generated
✅ Compile time safety
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Queries are
fl
exible
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Queries are
fl
exible
name
name
name
PersonCell
CharacterList
Tie a query to a view
= View : Query or Fragment
(Works well with SwiftUI)
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name
name
name
PersonCell
CharacterList
But this did not suit our case
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name
name
name
PersonCell
CharacterList
👆 Check this out for the details
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What’s the struggle? 🤔
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• Dealing with nested structs can be a hassle especially when passing it to your
domain layer
Apollo iOS: The Struggle
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Generated structs are nested based on a query
Apollo iOS: The Struggle
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Generated structs are nested based on a query
The more query gets complicated, so does the structs.
Apollo iOS: The Struggle
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Generated structs are nested based on a query
Generated structs does not conform to the Equatable protocol
Apollo iOS: The Struggle
👆
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I wish I could easily map to
domain objects a little more…
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It’s always an option
• Not to use a client library and write your own client
• Utilize Fragment
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Any alternative?
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Yes.
graphql.org/code
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Yes.
Graphaello will not be covered here
since it focuses on SwiftUI
graphql.org/code
👉
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Let’s look at
SwiftGraphQL
graphql.org/code
👉
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Apollo iOS
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Apollo iOS
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Apollo iOS
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SwiftGraphQL
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SwiftGraphQL
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SwiftGraphQL
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SwiftGraphQL
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SwiftGraphQL
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Looks good for mapping to
models!
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Comparing apollo-ios and SwiftGraphQL
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Comparing apollo-ios and SwiftGraphQL
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Comparing apollo-ios and SwiftGraphQL
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Summary
• Mapping generated structs to domain objects can be a hassle
• Other GraphQL clients can be your solution depending on your situation
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developers.kankak.com
I will post my update on the
blog
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Thank you!
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Resources
• https://www.apollographql.com/docs/ios/
• https://www.apollographql.com/blog/community/bringing-graphql-to-ios-
fc46423befa1/#generating-native-result-types
• https://miyashi.app/post/graphql-impressions/
• https://speakerdeck.com/sonatard/swiftui-graphql
• https://www.the-guild.dev/blog/swift-graphql?
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