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# File 'lib/souls/cli/create/templates/functions/go/function.rb', line 3
def self.function(file_name)
<<~APP
// Package p contains an HTTP Cloud Function.
package p
import (
"encoding/json"
"fmt"
"html"
"io"
"log"
"net/http"
)
// HelloWorld prints the JSON encoded "message" field in the body
// of the request or "Hello, World!" if there isn't one.
func #{file_name.underscore.camelize}(w http.ResponseWriter, r *http.Request) {
var d struct {
Message string `json:"message"`
}
if err := json.NewDecoder(r.Body).Decode(&d); err != nil {
switch err {
case io.EOF:
fmt.Fprint(w, "Hello World!")
return
default:
log.Printf("json.NewDecoder: %v", err)
http.Error(w, http.StatusText(http.StatusBadRequest), http.StatusBadRequest)
return
}
}
if d.Message == "" {
fmt.Fprint(w, "Hello World!")
return
}
fmt.Fprint(w, html.EscapeString(d.Message))
}
APP
end
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