mirror of
https://github.com/jwetzell/showbridge-go.git
synced 2026-04-27 05:15:47 +00:00
mess around with support WASM builds
This commit is contained in:
Joel Wetzell
5
app/demo/document.go
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5
app/demo/document.go
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@@ -0,0 +1,5 @@
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package main
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import "syscall/js"
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var document = js.Global().Get("document")
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74
app/demo/index.html
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74
app/demo/index.html
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<html>
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<head>
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<meta charset="utf-8" />
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<script src="wasm_exec.js"></script>
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<style>
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body {
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font-family: Arial, sans-serif;
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display: flex;
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flex-direction: column;
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height: 100vh;
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margin: 0;
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padding: 0;
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}
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#editor-container {
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flex-grow: 1;
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}
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#log-container {
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background-color: #1e1e1e;
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width: 100%;
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height: 200px;
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overflow-y: auto;
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overflow-x: scroll;
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box-shadow: inset 0 2px 8px rgba(0, 0, 0, 0.5);
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}
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#logs {
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margin: 0;
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padding-left: 2px;
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font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
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font-size: 13px;
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line-height: 1.4;
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color: #a8cc8c;
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}
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</style>
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<script>
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const container = document.getElementById("log-container");
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function isScrolledToBottom() {
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const scrollThreshold = 1;
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return (
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container.scrollHeight - container.clientHeight <=
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container.scrollTop + scrollThreshold
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);
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}
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function scrollToBottomManual() {
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const container = document.getElementById("log-container");
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// Set scrollTop to the maximum value possible (scrollHeight - clientHeight)
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container.scrollTop = container.scrollHeight - container.clientHeight;
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}
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</script>
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</head>
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<body>
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<div id="editor-container">
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<button id="button1">Button 1</button>
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<button id="button2">Button 2</button>
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<div id="output1"></div>
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<div id="output2"></div>
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</div>
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<div id="log-container">
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<pre id="logs"></pre>
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</div>
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<script>
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const go = new Go();
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WebAssembly.instantiateStreaming(
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fetch("main.wasm"),
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go.importObject,
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).then((result) => {
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go.run(result.instance);
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});
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</script>
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</body>
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</html>
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42
app/demo/log.go
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42
app/demo/log.go
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@@ -0,0 +1,42 @@
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package main
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import "syscall/js"
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type LogWriter struct {
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Element js.Value
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Container js.Value
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}
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func (pw *LogWriter) ScrollToBottom() {
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scrollHeight := pw.Container.Get("scrollHeight").Int()
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clientHeight := pw.Container.Get("clientHeight").Int()
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pw.Container.Set("scrollTop", scrollHeight-clientHeight)
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}
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func (pw *LogWriter) IsScrolledToBottom() bool {
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scrollHeight := pw.Container.Get("scrollHeight").Int()
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clientHeight := pw.Container.Get("clientHeight").Int()
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scrollTop := pw.Container.Get("scrollTop").Int()
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return scrollHeight-clientHeight <= scrollTop+25
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}
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func (pw *LogWriter) Write(p []byte) (n int, err error) {
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if !pw.Element.IsUndefined() {
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currentText := pw.Element.Get("textContent").String()
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newText := currentText + string(p)
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pw.Element.Set("textContent", newText)
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if pw.IsScrolledToBottom() {
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pw.ScrollToBottom()
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}
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}
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return len(p), nil
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}
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func NewLogWriter(id string) *LogWriter {
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element := document.Call("getElementById", id)
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container := element.Get("parentElement")
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return &LogWriter{
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Element: element,
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Container: container,
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}
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}
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121
app/demo/main.go
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121
app/demo/main.go
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@@ -0,0 +1,121 @@
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package main
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import (
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"context"
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"fmt"
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"log/slog"
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"github.com/jwetzell/showbridge-go"
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"github.com/jwetzell/showbridge-go/internal/config"
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)
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func main() {
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slog.SetLogLoggerLevel(slog.LevelDebug)
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slog.SetDefault(slog.New(slog.NewTextHandler(NewLogWriter("logs"), &slog.HandlerOptions{
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Level: slog.LevelDebug,
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})))
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router, moduleConfigErrors, routeConfigErrors := showbridge.NewRouter(config.Config{
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Api: config.ApiConfig{
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Enabled: false,
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Port: 0,
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},
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Modules: []config.ModuleConfig{
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{
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Id: "timer",
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Type: "time.interval",
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Params: map[string]any{
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"duration": 1000,
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},
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},
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{
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Id: "button1",
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Type: "web.onclick",
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Params: map[string]any{
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"id": "button1",
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},
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},
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{
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Id: "button2",
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Type: "web.onclick",
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Params: map[string]any{
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"id": "button2",
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},
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},
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},
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Routes: []config.RouteConfig{
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{
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Input: "timer",
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Processors: []config.ProcessorConfig{
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{
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Type: "debug.log",
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},
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},
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},
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{
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Input: "button1",
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Processors: []config.ProcessorConfig{
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{
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Type: "string.create",
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Params: map[string]any{
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"template": "{{.Payload.UnixMilli}}",
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},
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},
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{
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Type: "debug.log",
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},
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{
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Type: "web.set",
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Params: map[string]any{
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"id": "output1",
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"property": "innerText",
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"value": "Button1 Pressed @ {{.Payload}}",
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},
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},
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},
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},
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{
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Input: "button2",
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Processors: []config.ProcessorConfig{
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{
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Type: "string.create",
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Params: map[string]any{
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"template": "{{.Payload.UnixMilli}}",
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},
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},
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{
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Type: "debug.log",
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},
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{
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Type: "web.set",
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Params: map[string]any{
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"id": "output2",
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"property": "innerText",
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"value": "Button2 Pressed @ {{.Payload}}",
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},
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},
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},
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},
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},
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})
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if len(moduleConfigErrors) > 0 {
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for _, err := range moduleConfigErrors {
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println("Module config error:", err.Error)
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}
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}
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if len(routeConfigErrors) > 0 {
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for _, err := range routeConfigErrors {
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println("Route config error:", err.Error)
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}
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}
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ctx, cancel := context.WithCancel(context.Background())
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defer cancel()
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go func() {
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router.Start(ctx)
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fmt.Println("router stopped")
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}()
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<-ctx.Done()
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}
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