Phil Chen https://fahchen.dev The personal website of Phil Chen - RSS feed Building Grephql: A Compile-time GraphQL Client for Elixir https://fahchen.dev/blog/20260406-building-grephql-a-compile-time-graphql-client-for-elixir How I built Grephql, a compile-time GraphQL client for Elixir that validates queries at compile time and generates typed responses. Mon, 06 Apr 2026 00:00:00 GMT Leveraging Elixir Compile Callbacks in EctoTypedSchema https://fahchen.dev/blog/20251212-leveraging-elixir-compile-callbacks-in-ecto-typed-schema A deep dive into how EctoTypedSchema uses @on_definition and @before_compile to automatically generate accurate typespecs for Ecto schemas Fri, 12 Dec 2025 00:00:00 GMT Handling messages in batch using GenServer https://fahchen.dev/blog/20241214-handling-messages-in-batch-using-gen-server Handling messages in batches using Elixir’s GenServer optimizes processing efficiency and reduces overhead Sat, 14 Dec 2024 00:00:00 GMT Introduce TypedStructor https://fahchen.dev/blog/20240703-introduce-typed-structor Introduce a new libary to define typed structs, exceptions and record macros with effortlessly. Fri, 05 Jul 2024 00:00:00 GMT Streaming data in Elixir https://fahchen.dev/blog/20240702-streaming-data-in-elixir Discover how to efficiently stream data between file, database and even external systems. Tue, 02 Jul 2024 00:00:00 GMT