A most useful helpers for build the best Go web applications with Gowebly CLI.
💡 Note: You can use these helpers in other projects as well.
Helper to get the given environment variable. If key is not found, sets a fallback value.
import ( gowebly "github.com/gowebly/helpers" ) // Get a value of the environment variable 'BACKEND_PORT' // or sets it to a fallback value '5000'. gowebly.Getenv("BACKEND_PORT", "5000")
💡 Note: This is a more advanced version of the built-in os.Getenv function.
Helper to parse list of the given templates to the HTTP handler.
import ( "log/slog" gowebly "github.com/gowebly/helpers" ) func handler(w http.ResponseWriter, r *http.Request) { // Define paths to the user templates. indexPage := filepath.Join("templates", "pages", "index.html") indexLoginForm := filepath.Join("templates", "components", "index-login-form.html") // Parse user templates, using gowebly helper, or return error. tmpl, err := gowebly.ParseTemplates(indexPage, indexLoginForm) if err != nil { w.WriteHeader(http.StatusBadRequest) slog.Error(err.Error(), "method", r.Method, "status", http.StatusBadRequest, "path", r.URL.Path) return } // Execute (render) all templates or return error. if err := tmpl.Execute(w, nil); err != nil { w.WriteHeader(http.StatusInternalServerError) slog.Error(err.Error(), "method", r.Method, "status", http.StatusInternalServerError, "path", r.URL.Path) return } }
💡 Note: The main layout template (
templates/main.html) is already included.
Helper to parse a list of the given templates with a custom main layout to the HTTP handler. Useful to use at times when you want to override file name of the default templates/main.html layout template.
import ( "log/slog" gowebly "github.com/gowebly/helpers" ) func handler(w http.ResponseWriter, r *http.Request) { // Define path to the main layout template. customMainLayout := filepath.Join("templates", "my-custom-main.html") // Define paths to the user templates. indexPage := filepath.Join("templates", "pages", "index.html") indexLoginForm := filepath.Join("templates", "components", "index-login-form.html") // Parse user templates or return error. tmpl, err := gowebly.ParseTemplatesWithCustomMainLayout(customMainLayout, indexPage, indexLoginForm) if err != nil { w.WriteHeader(http.StatusBadRequest) slog.Error(err.Error(), "method", r.Method, "status", http.StatusBadRequest, "path", r.URL.Path) return } // Execute (render) all templates or return error. if err := tmpl.Execute(w, nil); err != nil { w.WriteHeader(http.StatusInternalServerError) slog.Error(err.Error(), "method", r.Method, "status", http.StatusInternalServerError, "path", r.URL.Path) return } }
Helpers to create a custom handler for serve embed ./static folder.
import ( "embed" "net/http" gowebly "github.com/gowebly/helpers" ) //go:embed static/* var static embed.FS // Create the gowebly helper for serve embed static folder. staticFileServer := gowebly.StaticFileServerHandler(http.FS(static)) // Handle static files (with a custom handler). http.Handle("/static/", staticFileServer)
The Gowebly Helpers is free and open-source software licensed under the Apache 2.0 License, created and supported by Vic Shóstak with 🩵 for people and robots.