Test Golang WebAssembly (WASM) on HTTPS Server - Golang Web Development
In this Golang Web Development Series #14, we're about to test the Golang WebAssembly (WASM) on HTTPS Server, Ubuntu 20.04 LTS, and Nginx web server with step by step guide here in Golang's Web Development Series.
Example Syntax on How to Build Golang WASM in different OS:
BUILD WASM IN UBUNTU:
GOOS=js GOARCH=wasm go build -o /var/www/html/maharlikanscode.com/public_html/static/assets/js/auth/auth.wasm main.go
BUILD WASM IN WINDOWS:
go build -o "C:\maharlikans_code\go\Golang Web Development\gowebapp\static\assets\js\auth\auth.wasm" main.go
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Source Codes:
package main
import (
"fmt"
"strings"
"syscall/js"
)
func login(this js.Value, args []js.Value) interface{} {
jsDoc := js.Global().Get("document")
if !jsDoc.Truthy() {
return js.Global().Call("eval", `Swal.fire("Oops!, Error", "Unable to get document objects", "error");`)
}
username := jsDoc.Call("getElementById", "username")
if !username.Truthy() {
return js.Global().Call("eval", `Swal.fire("Username is Required!", "Unable to get username object", "error");`)
}
password := jsDoc.Call("getElementById", "password")
if !password.Truthy() {
return js.Global().Call("eval", `Swal.fire("Password is Required!", "Unable to get password object", "error");`)
}
var pUserName string = username.Get("value").String()
var pPassword string = password.Get("value").String()
if len(strings.TrimSpace(pUserName)) == 0 {
return js.Global().Call("eval", `Swal.fire("Username is Required!", "Please enter your username!", "error");`)
}
if len(strings.TrimSpace(pPassword)) == 0 {
return js.Global().Call("eval", `Swal.fire("Password is Required!", "Please enter your password!", "error");`)
}
return nil
}
func exposeGoFuncJS() {
// Exposing the following Go Functions to Javascript client side
js.Global().Set("login", js.FuncOf(login))
}
func main() {
fmt.Println("Welcome to Maharlikans WASM tutorials")
c := make(chan bool, 1)
// Start exposing this following Go functions to JS
exposeGoFuncJS()
lt-c
}
Browser WASM Error:
Uncaught (in promise) TypeError: Failed to execute 'compile' on 'WebAssembly': Incorrect response MIME type. Expected 'application/wasm'.
Promise.then (async)
Include this from Nginx/mime.types:
application/wasm wasm;
Then, reload the NGINX server by executing this command:
sudo nginx -s reload
Build Golang WASM on Ubuntu 20.04 LTS:
GOOS=js GOARCH=wasm go build -o /var/www/html/maharlikanscode.com/public_html/static/assets/js/auth/auth.wasm main.go
On this page of the site you can watch the video online Test Golang WebAssembly (WASM) on HTTPS Server - Golang Web Development with a duration of hours minute second in good quality, which was uploaded by the user Maharlikans Code 01 January 1970, share the link with friends and acquaintances, this video has already been watched 293 times on youtube and it was liked by 10 viewers. Enjoy your viewing!
