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Subgraph-compatible server libraries


The following open-source libraries support acting as a in a federated graph, and their support is tracked in Apollo's

. Check out the repository for details on the compatibility tests listed in the table below.

LanguageFramework_service@key (single)@key (multi)@key (composite)@requires@providesftv1
AppSync
aws-appsync
✔️✔️✔️✔️✔️✔️
C# (.NET)
graphql-dotnet
✔️✔️
C# (.NET)
hotchocolate
✔️✔️✔️✔️✔️✔️
Elixir
absinthe_federation
✔️✔️✔️✔️✔️✔️ (
in progress
)
Go
gqlgen
✔️✔️*✔️*✔️✔️
JavaScript
apollo-server
✔️✔️✔️✔️✔️✔️✔️
JavaScript
express-graphql
✔️✔️✔️✔️✔️✔️
JavaScript
Mercurius
✔️✔️✔️✔️✔️✔️
Java
federation-jvm
✔️✔️✔️✔️✔️✔️✔️
Java / Kotlin
dgs
✔️✔️✔️✔️✔️✔️✔️
Kotlin
graphql-kotlin
✔️✔️*✔️*✔️*✔️✔️✔️
PHP
apollo-federation-php
✔️✔️✔️✔️✔️✔️
PHP
Lighthouse
(Laravel)
✔️✔️✔️✔️✔️✔️
Python
graphene
✔️✔️✔️✔️✔️
Python
ariadne
✔️✔️*✔️*✔️*✔️✔️
Python
strawberry-graphql
✔️✔️✔️✔️✔️✔️
Ruby
apollo-federation-ruby
✔️✔️✔️✔️✔️✔️✔️
Rust
async-graphql
✔️✔️✔️✔️✔️✔️
Scala
caliban
✔️✔️✔️✔️✔️✔️✔️

* Library does not support multiple @key definitions, but all types of @key definitions are supported

To add a library to this list, feel free to open an

or check out the
Apollo Federation Library Maintainers Implementation Guide
to learn how to submit a PR for your library!

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