Allow querying a single user by ID

cmd/serverFunc.go

@@ -98,10 +98,24 @@ func server() {
 	r.GET("/", helloWorld)
 	// TODO: Have fun creating new endpoints
 	r.GET("/api/users", getUsers)
+	r.GET("/api/user/:userid", getUser)
 
 	r.Run(":" + ListenPort)
 }
 
+func getUser(c *gin.Context) {
+	id := c.Param("userid")
+	user := user{}
+	err := db.QueryRow("SELECT * FROM alumnos WHERE id_alumno = "+id).Scan(&user.Id, &user.Name, &user.Surname1, &user.Surname2, &user.Email)
+	if err != nil {
+		e := fmt.Sprintf("SOMETHING BAD HAPPENED QUERYING THE DATABASE: %v\n", err)
+		log.Print(e)
+		c.String(http.StatusInternalServerError, e)
+		return
+	}
+	c.JSON(http.StatusOK, user)
+}
+
 func getUsers(c *gin.Context) {
 	users := []user{}
 	rows, err := db.Query("SELECT * FROM alumnos")