expo-module

Complete reference for building native modules and views using the Expo Modules API. Covers Swift (iOS), Kotlin (Android), and TypeScript. Consult these resources as needed: Always scaffold with create-expo-module first , then modify the generated code. This ensures correct podspec, build.gradle, and module config — avoiding common build errors. CI=1 skips interactive prompts and uses the provided flags. Important: In CI=1 (non-interactive) mode, the scaffold always creates the directory as modules/my-module/ because the slug is derived from customTargetPath which is undefined for --local modules — the --name flag only sets the native class name, not the directory. After scaffolding, rename it to a kebab-case name matching your module (e.g., KeyValueStore → modules/key-value-store/ ), then run cd ios && pod install so CocoaPods picks up the correct path. Skipping the rename is fine functionally, but skipping pod install after any rename causes iOS build failures ("Build input file cannot be found").