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WASM Extension Template

Use this template to quickly generate an empty Hello World web extension in Rust. This will get your code executed the right way.

Supports both manifest v2 and v3.

Will install wasm-specific build tools for you.

Install tools

cargo install cargo-generate
cargo install wasm-pack

Generate an extension

You can use cargo-generate to generate a new crate (modify the name at the end of the command):

cargo generate --git https://github.com/Mubelotix/wasm-extension-template --name amazing-extension

Your crate is now generated and ready to be compiled.

Compile your extension

You cannot use cargo build to compile your crate. Use the build.sh script instead:

sh build.sh

Once compiled, the target files are ready to be used in the pkg folder.

Test your program

Web browsers allow developpers to test web extensions before publishment. See your browser's specific instructions to do that. After build, the manifest.json file is located in the pkg folder. By default, your extension will run on example.com and have no other permissions. You should want to modify the manifest (see the doc).