Hello entry

Focus: one callable hello entry that builds and returns a greeting.

hello.slx


entry hello(name: string) -> string {
    let message: string = "Hello, " + name
    // Debug print: by default, nodes do not show println output.
    println(message)
    return message
}

How it works

entry hello(name: string) -> string is the single public function in this example.
let message: string = "Hello, " + name builds the returned value.
println(message) is useful while debugging locally, but default node configuration does not display its output.
return message produces a typed exit value. On-chain, it is stored in the contract logs.