API Example

server.go

package main

import (
    "fmt"
    "log"
    "net/http"
)

func handler(w http.ResponseWriter, r *http.Request) {
    fmt.Fprintf(w, "Hi there")
}

func main() {
    fmt.Println("Starting server on port 3000")
    // run the handler function when a request 
    // to the "/" endpoint is made
    http.HandleFunc("/", handler)
    log.Fatal(http.ListenAndServe(":3000", nil)) // start the server
}