Package recaptcha is a middleware that provides reCAPTCHA integration for Flamego.
The minimum requirement of Go is 1.18.
go get github.com/flamego/recaptcha
<!-- templates/home.tmpl -->
<html>
<head>
<script src="https://www.google.com/recaptcha/api.js"></script>
</head>
<body>
<script>
function onSubmit(token) {
document.getElementById("demo-form").submit();
}
</script>
<form id="demo-form" method="POST">
<button class="g-recaptcha"
data-sitekey="{{.SiteKey}}"
data-callback='onSubmit'
data-action='submit'>Submit</button>
</form>
</body>
</html>package main
import (
"fmt"
"net/http"
"github.com/flamego/flamego"
"github.com/flamego/recaptcha"
"github.com/flamego/template"
)
func main() {
f := flamego.Classic()
f.Use(template.Templater())
f.Use(recaptcha.V3(
recaptcha.Options{
Secret: "<SECRET>",
VerifyURL: recaptcha.VerifyURLGoogle,
},
))
f.Get("/", func(t template.Template, data template.Data) {
data["SiteKey"] = "<SITE KEY>"
t.HTML(http.StatusOK, "home")
})
f.Post("/", func(w http.ResponseWriter, r *http.Request, re recaptcha.RecaptchaV3) {
token := r.PostFormValue("g-recaptcha-response")
resp, err := re.Verify(token)
if err != nil {
w.WriteHeader(http.StatusBadRequest)
_, _ = w.Write([]byte(err.Error()))
return
} else if !resp.Success {
w.WriteHeader(http.StatusBadRequest)
_, _ = w.Write([]byte(fmt.Sprintf("Verification failed, error codes %v", resp.ErrorCodes)))
return
}
w.WriteHeader(http.StatusOK)
_, _ = w.Write([]byte("Verified!"))
})
f.Run()
}- Read documentation and examples.
- Please file an issue or start a discussion on the flamego/flamego repository.
This project is under the MIT License. See the LICENSE file for the full license text.