Relay Connections for GraphQL Pagination in Elixir

As your application data grows, sending massive datasets over the network becomes a major performance bottleneck. Implementing structured pagination is essential for maintaining responsive APIs, and the Relay Connection specification is the industry standard for cursor-based pagination. This text-based course guides you through designing and implementing robust pagination workflows using Elixir and the Absinthe library. You will transition from basic database queries to building highly scalable, cursor-paginated GraphQL endpoints. Along the way, you will adopt modern Elixir practices, including Ecto query optimization, type-safe schema design, and clean code separation. What you'll learn: - Understand the core concepts of cursor-based pagination and the Relay Connection specification - Configure Absinthe schemas to support connection, edge, and node types - Build efficient Ecto queries in Elixir to fetch paginated database records - Implement backward and forward pagination using cursors and limit parameters - Apply performance optimization techniques to prevent N+1 query problems in paginated fields - Practice writing unit tests to verify the correctness of your paginated GraphQL endpoints The course begins with foundational definitions of GraphQL pagination strategies, comparing offset and cursor-based approaches. From there, you will step through configuring your Elixir application, writing database resolvers, and defining Absinthe types to construct a production-ready pagination system. This course is designed for backend developers, Elixir enthusiasts, and API designers who want to implement robust pagination. No prior experience with Relay is required, though a basic understanding of Elixir and GraphQL is helpful. Start reading to build faster, more reliable GraphQL APIs with Elixir and Absinthe today.