Go Gin-Gonic, get text from POST request

I'm starting to develop a REST API using Go and package Gin-Gonic. The idea is to create a REST API that receives POST requests in a JSON format and redirects this call to another application (also a API). Here is a piece of code:

package mainimport ("fmt""github.com/gin-gonic/gin""net/http")func main() {    r := gin.Default()    r.GET("/status", func(c *gin.Context) {        c.String(200, "on")    })    r.GET("/user/:name", func(c *gin.Context) {        name := c.Param("name")        c.String(http.StatusOK, "Hello %s", name)    })    r.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)    })    r.POST("/foo", func(c *gin.Context) {        fmt.Printf("%s", "At least I got here")        message := c.PostForm() //???        c.JSON(200, gin.H{"status": message}) //???    })    r.Run(":8080") // listen an}

At function r.Posts("/foo",...) I would like c.JSON to send me back the full JSON that I sent:

curl -H "Content-Type: application/json" -X POST -d '{"user":"xyz","password":"xyz"}' http://localhost:8080/foo

I've seen examples where they bind the JSON file by creating a struct with the same structure as the input JSON (check Gin-Gonic examples at https://github.com/gin-gonic/gin ). However I only need to resend the full string without taking care of the format. Any ideas?