42 lines
854 B
Go
42 lines
854 B
Go
package webapp
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import (
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"embed"
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"io/fs"
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"net/http"
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"strings"
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)
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//go:embed static/*
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var assets embed.FS
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func Handler() http.Handler {
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static, err := fs.Sub(assets, "static")
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if err != nil {
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panic(err)
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}
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files := http.FileServer(http.FS(static))
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return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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if r.URL.Path == "/" {
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serveIndex(w, r, static)
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return
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}
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if strings.HasPrefix(r.URL.Path, "/assets/") {
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http.StripPrefix("/assets/", files).ServeHTTP(w, r)
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return
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}
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http.NotFound(w, r)
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})
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}
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func serveIndex(w http.ResponseWriter, r *http.Request, static fs.FS) {
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content, err := fs.ReadFile(static, "index.html")
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if err != nil {
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http.Error(w, "web app unavailable", http.StatusInternalServerError)
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return
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}
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w.Header().Set("Content-Type", "text/html; charset=utf-8")
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_, _ = w.Write(content)
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}
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