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This commit is contained in:
Ross Trottier 2024-06-25 11:35:30 -06:00
commit 9defacc932
11 changed files with 187 additions and 0 deletions
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17
cmd/web/error-handlers.go Normal file
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package main
import (
"net/http"
"runtime/debug"
)
func (app *application) serverError(writer http.ResponseWriter, request *http.Request, err error) {
var(
method = request.Method
uri = request.URL.RequestURI()
trace = string(debug.Stack())
)
app.logger.Error(err.Error(), "method", method, "uri", uri, "trace", trace)
http.Error(writer, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
}

7
cmd/web/handlers.go Normal file
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package main
import "net/http"
func (app *application) home(writer http.ResponseWriter, request *http.Request) {
app.render(writer, request, http.StatusOK, "home.tmpl.html", templateData{})
}

38
cmd/web/main.go Normal file
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package main
import (
"html/template"
"log/slog"
"net/http"
"os"
"flag"
)
type application struct {
logger *slog.Logger
templateCache map[string]*template.Template
}
func main() {
//Get env variables
addr := flag.String("addr", ":4000", "HTTP network address")
//Set up logger
logger := slog.New(slog.NewJSONHandler(os.Stdout, &slog.HandlerOptions{
AddSource: true,
}))
//Set up template cache
templateCache, err := newTemplateCache()
if err != nil {
logger.Error(err.Error())
os.Exit(1)
}
//Set up application data
app := application {
logger: logger,
templateCache: templateCache,
}
err = http.ListenAndServe(*addr, app.routes())
logger.Error(err.Error())
os.Exit(1)
}

30
cmd/web/renderer.go Normal file
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package main
import (
"bytes"
"fmt"
"net/http"
)
func (app *application) render(writer http.ResponseWriter, request *http.Request, status int, page string, data templateData) {
// Get template
ts, ok := app.templateCache[page]
if !ok {
err := fmt.Errorf("the template %s does not exist", page)
//Should this be a 404?
app.serverError(writer, request, err)
return
}
// Write buffer
templateBuffer := new(bytes.Buffer)
err := ts.ExecuteTemplate(templateBuffer, "base", data)
if err != nil {
app.serverError(writer, request, err)
return
}
// If no error, write to the response writer
writer.WriteHeader(status)
templateBuffer.WriteTo(writer)
}

14
cmd/web/routes.go Normal file
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package main
import "net/http"
func (app *application) routes() *http.ServeMux {
mux := http.NewServeMux()
//Set up static file server
fileServer := http.FileServer(http.Dir("./ui/static"))
mux.Handle("GET /static/", http.StripPrefix("/static", fileServer))
//Set up routes
mux.HandleFunc("GET /{$}", app.home)
return mux
}

45
cmd/web/templates.go Normal file
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package main
import (
"html/template"
"path/filepath"
)
type templateData struct {
BaseUri string
}
func newTemplateCache() (map[string]*template.Template, error) {
cache := map[string]*template.Template{}
pages, err := filepath.Glob("./ui/html/pages/*.tmpl.html")
if err != nil {
return nil, err
}
for _, page := range pages {
//Get name of page
name := filepath.Base(page)
//Parse main template file
ts, err := template.ParseFiles("./ui/html/base.tmpl.html")
if err != nil {
return nil, err
}
//Parse partials
ts, err = ts.ParseGlob("./ui/html/partials/*.tmpl.html")
if err != nil {
return nil, err
}
//Parse page
ts, err = ts.ParseFiles(page)
if err != nil {
return nil, err
}
//set in cache
cache[name] = ts
}
return cache, nil
}

3
go.mod Normal file
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module gitea.federated.computer/ross/federated-dash.git
go 1.22.4

23
ui/html/base.tmpl.html Normal file
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{{define "base"}}
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Federated Core Dashboard</title>
<link rel="stylesheet" href="/static/css/styles.css" />
</head>
<body>
<header>
<h1>Federated Computer</h1>
</header>
{{template "nav" .}}
<main>
{{template "main" .}}
</main>
<footer>
Powered by Federated Computer
</footer>
</body>
</html>
{{end}}

5
ui/html/pages/home.tmpl.html Normal file
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{{define "title"}}Home{{end}}
{{define "main"}}
yo
{{end}}

5
ui/html/partials/nav.tmpl.html Normal file
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{{define "nav"}}
<nav>
<a href="/">Home</a>
</nav>
{{end}}

0
ui/static/css/styles.css Normal file
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