GraphQL Error Handling in Elixir and Absinthe

When building APIs with GraphQL, handling failures gracefully is just as important as delivering successful responses. This text-only course guides you through the process of designing, modeling, and returning structured errors within GraphQL mutations using Elixir and the Absinthe framework. You will transform messy, uninformative API failures into predictable, client-friendly error structures. By the end of this course, you will be able to design consistent error payloads that frontend developers love to consume, making your Elixir backend robust and reliable. What you'll learn: - Understand the core principles of GraphQL mutation design and error-modeling strategies - Implement structured error schemas in Absinthe to separate system failures from validation errors - Map Elixir changeset errors directly to standard GraphQL object types - Apply pattern matching and custom middleware to clean up error-handling logic - Configure modern API observability patterns to track and log mutation failures gracefully We begin with foundational definitions of GraphQL error types and Elixir's idiomatic error-handling philosophies. From there, you will read through step-by-step implementations, analyzing code patterns that clean up your controllers and schemas. This course is designed for backend developers, Elixir enthusiasts, and API designers who want to elevate their Absinthe skills. A basic understanding of Elixir syntax and GraphQL fundamentals is recommended. Start writing cleaner, more professional Elixir APIs today.