Note: This repository is outdated and archived. It showcased the deprecated Wasmer C API. The new C API lands in the Wasmer repository with its examples and its online documentation.

This repo showcases how to use the wasmer-runtime-c-api from C.

The documentation containing installation instructions, and additional examples can be found at the Wasmer C/C++ Integration Documentation.

See wasmer-c-api-example.c and wasmer-wasi-c-api-example.c for the example implementations.

The wasm-sample-app and wasmer-wasi-c-api-example directories contain example C wasm apps to run in the embedder app.

• CMake
• Emscripten to build the sample app

# Building the wasm-sample-app cd wasm-sample-app && emcc source.c -Os -s SIDE_MODULE=1 -s EXPORTED_FUNCTIONS="['_hello_wasm']" -o target.wasm # Building the wasm-wasi-sample-app cd wasmer-wasi-c-api-example && wasicc program.c -Oz -o program.wasm -Wl,--allow-undefined -Wl,--export-all # Build the embedder api cmake . make # Run the executables ./wasmer-c-api-example ./wasmer-wasi-c-api-example

The Reference API for the Wasmer C API can be found here.