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How to compile a smart contract via CLI

Overview​

This guide provides instructions how to compile a smart contract using the command line interface (CLI).

Before you begin​

  • You have the source of the contract saved in a local folder, e.g. ./examples/hello/

Procedure​

Follow the following steps to compile your contract.

  1. Navigate to the hello folder in examples ./examples/hello. You should see the ./src/hello.cpp file.

  2. Run the following commands:

    mkdir build
    cd build
    cdt-cpp ../src/hello.cpp -o hello.wasm -I ../include/

    Where:

    • ../src/hello.cpp = Is the input cpp source file to be compiled.
    • -o hello.wasm = It instructs the cdt--cpp tool who to name the output wasm file.
    • -I ../include/ = It tells cdt-cpp tool what the include folder path is, in this particular case it is a relative path.

  3. Verify the following two files were generated:

  • the compiled binary wasm: hello.wasm,
  • and the generated ABI file: hello.abi.

Summary​

In conclusion, the above instructions show how to compile a smart contract using the command line interface (CLI).