example

yaml-to-json wasm2nix example

This example builds a small Rust Wasm module that parses YAML with Saphyr and emits JSON, then translates that module to Nix with the repository's wasm2nix CLI.

Run it from the repository root:

./example/build.sh

After the build, use the generated Nix wrapper:

nix eval --raw --impure --expr '
  let example = import ./example/default.nix { };
  in example.yamlToJson "name: wasm2nix\nenabled: true\n"
'

The Nix wrapper accepts ASCII input and returns ASCII JSON. The Rust module builds a serde_json::Value, serializes it with serde_json, then escapes non-ASCII JSON output as \uXXXX sequences.