Hive Router Subscriptions

[enisdenjo]

graphql-hive/router#620. Merge after release.

[gemini-code-assist]

Summary of Changes

Hello @enisdenjo, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request introduces extensive documentation for Federated Subscriptions in the Hive Router, outlining its seamless support for real-time data in a federated GraphQL environment. The new guide clarifies the operational mechanics, details the various supported HTTP-based protocols, and demonstrates how the router handles automatic entity resolution across subgraphs, complete with practical client integration examples.

Highlights

• New Documentation for Federated Subscriptions: Introduces a comprehensive guide on how Hive Router supports real-time data updates via GraphQL subscriptions, detailing its out-of-the-box functionality.
• Detailed Protocol Support: Explains the use of Server-Sent Events (SSE), Incremental Delivery over HTTP, and Multipart HTTP for both client-to-router and router-to-subgraph communication.
• Automatic Entity Resolution: Highlights the router's capability to automatically resolve federated entity fields across multiple subgraphs within a single subscription, simplifying complex data flows.
• Client Integration Examples: Provides practical examples and integration recipes for various GraphQL clients like Apollo Client, Relay, and urql, demonstrating how to use different protocols.

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[gemini-code-assist]

Code Review

This pull request introduces comprehensive documentation for Federated Subscriptions within Hive Router. The new documentation is well-structured, covering the fundamentals, supported protocols, and client-side implementation examples. My review focuses on improving the clarity and correctness of the new documentation file, with suggestions to fix typos, grammatical errors, and a missing import in a code snippet.

[github-actions]

🚀 Snapshot Release (alpha)

The latest changes of this PR are available as alpha on npm (based on the declared changesets):

Package	Version	Info
@graphql-hive/apollo	0.46.0-alpha-20260107215734-a58164975833b8934c9e7183f04cfbb0d5430cc0	npm ↗︎ unpkg ↗︎
@graphql-hive/cli	0.57.0-alpha-20260107215734-a58164975833b8934c9e7183f04cfbb0d5430cc0	npm ↗︎ unpkg ↗︎
@graphql-hive/core	0.19.0-alpha-20260107215734-a58164975833b8934c9e7183f04cfbb0d5430cc0	npm ↗︎ unpkg ↗︎
@graphql-hive/envelop	0.40.1-alpha-20260107215734-a58164975833b8934c9e7183f04cfbb0d5430cc0	npm ↗︎ unpkg ↗︎
@graphql-hive/yoga	0.46.1-alpha-20260107215734-a58164975833b8934c9e7183f04cfbb0d5430cc0	npm ↗︎ unpkg ↗︎
hive	8.14.0-alpha-20260107215734-a58164975833b8934c9e7183f04cfbb0d5430cc0	npm ↗︎ unpkg ↗︎
hive-apollo-router-plugin	2.3.6-alpha-20260107215734-a58164975833b8934c9e7183f04cfbb0d5430cc0	npm ↗︎ unpkg ↗︎
hive-console-sdk-rs	0.2.3-alpha-20260107215734-a58164975833b8934c9e7183f04cfbb0d5430cc0	npm ↗︎ unpkg ↗︎

[github-actions]

📚 Storybook Deployment

The latest changes are available as preview in: https://pr-7472.hive-storybook.pages.dev

[github-actions]

🐋 This PR was built and pushed to the following Docker images:

Targets: build

Platforms: linux/amd64

Image Tag: a58164975833b8934c9e7183f04cfbb0d5430cc0

[github-actions]

💻 Website Preview

The latest changes are available as preview in: https://pr-7472.hive-landing-page.pages.dev