Parámetros en la ruta
Gin admite dos tipos de parámetros de ruta que permiten capturar valores directamente de la URL:
:name— coincide con un solo segmento de ruta. Por ejemplo,/user/:namecoincide con/user/johnpero no coincide con/user/ni/user.*action— coincide con todo lo que sigue después del prefijo, incluidas las barras. Por ejemplo,/user/:name/*actioncoincide con/user/john/sendy/user/john/. El valor capturado incluye la/inicial.
Usa c.Param("name") para obtener el valor de un parámetro de ruta dentro de tu handler.
package main
import ( "net/http"
"github.com/gin-gonic/gin")
func main() { router := gin.Default()
// This handler will match /user/john but will not match /user/ or /user router.GET("/user/:name", func(c *gin.Context) { name := c.Param("name") c.String(http.StatusOK, "Hello %s", name) })
// However, this one will match /user/john/ and also /user/john/send // If no other routers match /user/john, it will redirect to /user/john/ router.GET("/user/:name/*action", func(c *gin.Context) { name := c.Param("name") action := c.Param("action") message := name + " is " + action c.String(http.StatusOK, message) })
router.Run(":8080")}Pruébalo
# Single parameter -- matches :namecurl http://localhost:8080/user/john# Output: Hello john
# Wildcard parameter -- matches :name and *actioncurl http://localhost:8080/user/john/send# Output: john is /send
# Trailing slash is captured by the wildcardcurl http://localhost:8080/user/john/# Output: john is /