Step 1: Install the wapc CLI
> powershell -Command "iwr -useb https://raw.githubusercontent.com/wapc/cli/master/install/install.ps1 | iex"
$ curl -fsSL https://raw.githubusercontent.com/wapc/cli/master/install/install.sh | /bin/bash
$ wget -q https://raw.githubusercontent.com/wapc/cli/master/install/install.sh -O - | /bin/bash
$ brew install wapc/tap/wapc
Step 2: Generate a new project
$ wapc new assemblyscript hello_world_as
$ wapc new rust hello_world_rust
$ wapc new tinygo hello_world_tinygo $ cd hello_world_tinygo $ make codegen $ go mod tidy
Step 3: Build
Step 4: Run
The waPC tool suite
The waPC protocol
The core of waPC is a protocol for communicating into and out of WebAssembly.
Use waPC for everything from small libraries to distributed application platforms.
waPC Hosts & Guests
waPC hosts manage the lifecycle and communication of WebAssembly guests.
Hosts and guests give you a universal interface for dynamic behavior in both native and WebAssembly.
WIDL & the waPC CLI
Use the WebAssembly Interface Definition Language (WIDL) to define your WebAssembly’s schema and the
wapc CLI to generate all the code except your business logic.
How it works
- waPC Host
- Once initialized with a WebAssembly intepreter and a wasm binary, the wapc-host library can start executing functions in the wasm guest. The host and guest operate over the waPC communication protocol to satisfy bindings for compiled languages. This protocol takes an operation name and input data, serializes it, and calls the receiving waPC method in the wasm guest.
- waPC Guest
- The wasm binary — built with the wapc-guest bindings — accepts the waPC call, deserializes the input, executes the requested operation by name, serializes the return value, and passes it back over the waPC protocol back to the host.
- Your WIDL definition is the description of your wasm module's interface. It includes the exposed operations, the input types, return types, namespaces, and more. The waPC CLI uses a widl definition to generate Rust, Go, or AssemblyScript code. (see more)
- waPC CLI
- The waPC command line tool automates the process of creating new projects and generating waPC-compliant integration code.