Relay Cursor Connections
Relay cursor connections are a GraphQL pagination pattern where list fields return a Connection object with edges, nodes, and pageInfo containing startCursor, endCursor, and hasNextPage. Cursors are opaque tokens tied to stable ordering, which helps large GraphQL lists avoid offset skipping and duplicate rows when data changes.
Technical Architecture & Deep-Dive
The Relay specification standardizes names and shapes so client libraries like relay-style hooks can page with after and first arguments consistently. Each edge wraps a node plus its cursor for bookkeeping.
Many SaaS GraphQL APIs adopt similar connection shapes even outside Relay. An edge BFF can translate REST offset APIs into connection-shaped JSON so one mobile list component handles Stripe-style lists and native GraphQL backends alike.
Key Architectural Benefits
Implement Relay Cursor Connections at the Edge
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Frequently Asked Questions
Q:Are Relay cursors the same as keyset pagination?
They share goals. Keyset often exposes sort column tuples, while Relay cursors are opaque tokens encoding those positions.
Related Architecture Concepts
Cursor-based pagination retrieves large result sets in pages using an opaque cursor that marks the position of the last returned item. Each response includes a cursor for the next page, and clients pass it back to continue, avoiding skipped or duplicated items when data changes.
Keyset pagination, also called seek pagination, retrieves the next page using the last seen sort key values, such as created_at and id, instead of a numeric offset. The database seeks directly to the key boundary, staying fast and stable as rows are inserted or deleted.
GraphQL is a query language and runtime for APIs in which clients send a query describing exactly the fields they need, and the server returns JSON matching that shape. A strongly typed schema defines available data, and a single endpoint replaces many REST routes.