golang helloworld

Author: jwatson0

.github/workflows/golang.yaml

@@ -0,0 +1,33 @@
+name: Go Build and Test
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v4
+
+    - name: Set up Go
+      uses: actions/setup-go@v5
+      with:
+        go-version: '1.25'
+
+    - name: Get dependencies
+      run: |
+        cd runtime/golang/helloworld
+        go mod tidy
+
+    - name: Build
+      run: |
+        cd runtime/golang/helloworld
+        go build -v
+
+    - name: Test
+      run: |
+        cd runtime/golang/helloworld
+        go test -v

runtime/golang/helloworld/.gitignore

@@ -0,0 +1 @@
+helloworld

runtime/golang/helloworld/go.mod

@@ -0,0 +1,13 @@
+module jitx.com/deploytest1/runtime/golang/helloworld
+
+go 1.25.5
+
+require (
+	github.com/gorilla/websocket v1.5.3
+	rsc.io/quote v1.5.2
+)
+
+require (
+	golang.org/x/text v0.0.0-20170915032832-14c0d48ead0c // indirect
+	rsc.io/sampler v1.3.0 // indirect
+)

runtime/golang/helloworld/go.sum

@@ -0,0 +1,8 @@
+github.com/gorilla/websocket v1.5.3 h1:saDtZ6Pbx/0u+bgYQ3q96pZgCzfhKXGPqt7kZ72aNNg=
+github.com/gorilla/websocket v1.5.3/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE=
+golang.org/x/text v0.0.0-20170915032832-14c0d48ead0c h1:qgOY6WgZOaTkIIMiVjBQcw93ERBE4m30iBm00nkL0i8=
+golang.org/x/text v0.0.0-20170915032832-14c0d48ead0c/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
+rsc.io/quote v1.5.2 h1:w5fcysjrx7yqtD/aO+QwRjYZOKnaM9Uh2b40tElTs3Y=
+rsc.io/quote v1.5.2/go.mod h1:LzX7hefJvL54yjefDEDHNONDjII0t9xZLPXsUe+TKr0=
+rsc.io/sampler v1.3.0 h1:7uVkIFmeBqHfdjD+gZwtXXI+RODJ2Wc4O7MPEh/QiW4=
+rsc.io/sampler v1.3.0/go.mod h1:T1hPZKmBbMNahiBKFy5HrXp6adAjACjK9JXDnKaTXpA=

runtime/golang/helloworld/main.go

@@ -0,0 +1,68 @@
+//go:build linux || darwin || windows
+
+package main
+
+import (
+	"fmt"
+	"log"
+
+	"github.com/gorilla/websocket"
+	"rsc.io/quote"
+)
+
+//// use an external shared C library
+//
+// #cgo LDFLAGS: -luuid
+//
+// #include <uuid/uuid.h>
+// #include <stdio.h>
+// #include <stdlib.h>
+//
+// // create a uuid function in C to return a uuid char*
+// char* _go_uuid() {
+//   uuid_t uuid;
+//   uuid_generate_random(uuid);
+//   char *str = malloc(37);
+//   uuid_unparse_lower(uuid, str);
+//   printf("C code in comment\n");
+//   return str;
+// }
+import "C"
+
+// uuid generates a UUID using the C shared library.
+// It returns a Go string.
+func uuid() string {
+	return C.GoString(C._go_uuid())
+}
+
+func main() {
+	fmt.Println("Hello, World!")
+	fmt.Println(quote.Hello())
+
+	myuuid := uuid() // this is a go string now
+	fmt.Println(myuuid)
+
+	// Dial the WebSocket server
+	var wsURL = "ws://corefx-net-http11.azurewebsites.net/WebSocket/EchoWebSocket.ashx"
+	conn, _, err := websocket.DefaultDialer.Dial(wsURL, nil)
+	if err != nil {
+		log.Fatal("Dial error:", err)
+	}
+	defer conn.Close()
+
+	fmt.Println("Connected to", wsURL)
+
+	// Send message to server
+	err = conn.WriteMessage(websocket.TextMessage, []byte("Hello Websocket"))
+	if err != nil {
+		log.Fatal("Write error:", err)
+	}
+
+	// Read response from server
+	_, response, err := conn.ReadMessage()
+	if err != nil {
+		log.Fatal("Read error:", err)
+	}
+
+	fmt.Printf("Server: %s\n", string(response))
+}

runtime/golang/helloworld/main_test.go

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+package main
+
+import (
+	"github.com/gorilla/websocket"
+	"rsc.io/quote"
+	"testing"
+)
+
+// test package function
+func TestExternalPackage(t *testing.T) {
+	output := quote.Hello()
+	if output == "" {
+		t.Error("External package rsc.io/quote returned empty string")
+	}
+}
+
+// test websocket client
+func TestWebsocketClient(t *testing.T) {
+	// Dial the WebSocket server
+	var wsURL = "ws://corefx-net-http11.azurewebsites.net/WebSocket/EchoWebSocket.ashx"
+	conn, _, err := websocket.DefaultDialer.Dial(wsURL, nil)
+	if err != nil {
+		t.Error("Dial error:", err)
+	}
+	defer conn.Close()
+
+	// Send message to server
+	err = conn.WriteMessage(websocket.TextMessage, []byte("Hello Websocket"))
+	if err != nil {
+		t.Error("Write error:", err)
+	}
+
+	// Read response from server
+	_, response, err := conn.ReadMessage()
+	if err != nil {
+		t.Error("Read error:", err)
+	}
+
+	if string(response) != "Hello Websocket" {
+		t.Error("websocket did not echo input")
+	}
+}