mkdir templatesmv *.tmpl templates/go get github.com/GeertJohan/go.ricego generatego run main.go
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Nested go.rice templates example using golang "net/http" webserver.
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| {{ define "away" }} | |
| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| {{ template "header" . }} | |
| </head> | |
| <body> | |
| <h1>AWAY</h1> | |
| </body> | |
| </html> | |
| {{ end }} |
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| {{ define "header" }} | |
| <title>{{ .title }}</title> | |
| <meta name="viewport" content="width=device-width, initial-scale=1.0" /> | |
| <meta name="apple-mobile-web-app-capable" content="yes" /> | |
| <meta name="apple-mobile-web-app-status-bar-style" content="default" /> | |
| {{ end }} |
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| {{ define "home" }} | |
| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| {{ template "header" . }} | |
| </head> | |
| <body> | |
| <h1>HOME</h1> | |
| </body> | |
| </html> | |
| {{ end }} |
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| package main | |
| //go:generate rice embed-go | |
| import ( | |
| "fmt" | |
| "html/template" | |
| "net/http" | |
| rice "github.com/GeertJohan/go.rice" | |
| ) | |
| var ( | |
| templates map[string]*template.Template | |
| ) | |
| func root(w http.ResponseWriter, r *http.Request) { | |
| http.Redirect(w, r, "/home", 302) | |
| } | |
| func home(w http.ResponseWriter, r *http.Request) { | |
| ctx := make(map[string]interface{}) | |
| ctx["title"] = "HOME" | |
| renderTemplate(w, "home", ctx) | |
| } | |
| func away(w http.ResponseWriter, r *http.Request) { | |
| ctx := make(map[string]interface{}) | |
| ctx["title"] = "AWAY" | |
| renderTemplate(w, "away", ctx) | |
| } | |
| func renderTemplate(w http.ResponseWriter, name string, p interface{}) { | |
| w.Header().Set("Content-Type", "text/html") | |
| tmpl := templates[name] | |
| err := tmpl.Execute(w, p) | |
| if err != nil { | |
| http.Error(w, err.Error(), http.StatusInternalServerError) | |
| } | |
| } | |
| func combineTemplates(path string) (string, error) { | |
| box, err := rice.FindBox("templates/") | |
| if err != nil { | |
| return "", err | |
| } | |
| header, err := box.String("header.tmpl") | |
| if err != nil { | |
| return "", err | |
| } | |
| tmpl, err := box.String(path) | |
| if err != nil { | |
| return "", err | |
| } | |
| return fmt.Sprintf("%s\n%s", header, tmpl), nil | |
| } | |
| func loadTemplates() (map[string]*template.Template, error) { | |
| templates := make(map[string]*template.Template) | |
| home, err := combineTemplates("home.tmpl") | |
| if err != nil { | |
| return templates, err | |
| } | |
| templateHome := template.Must(template.New("home").Parse(home)) | |
| templates["home"] = templateHome | |
| away, err := combineTemplates("away.tmpl") | |
| if err != nil { | |
| return templates, err | |
| } | |
| templateAway := template.Must(template.New("away").Parse(away)) | |
| templates["away"] = templateAway | |
| return templates, nil | |
| } | |
| func main() { | |
| var err error | |
| templates, err = loadTemplates() | |
| if err != nil { | |
| fmt.Println(err) | |
| } | |
| http.HandleFunc("/", home) | |
| http.HandleFunc("/home", home) | |
| http.HandleFunc("/away", away) | |
| http.ListenAndServe(":8080", nil) | |
| } |
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