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users.go
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/
users.go
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// Package handlers contains the handler logic for processing requests.
package handlers
import (
"encoding/json"
"net/http"
"github.com/ardanlabs/gotraining/topics/http/api/app"
"github.com/ardanlabs/gotraining/topics/http/api/models"
"github.com/ardanlabs/gotraining/topics/http/api/services"
)
// usersHandle maintains the set of handlers for the users api.
type usersHandle struct{}
// Users fronts the access to the users service functionality.
var Users usersHandle
// List returns all the existing users in the system.
// 200 Success, 404 Not Found, 500 Internal
func (usersHandle) List(c *app.Context) error {
u, err := services.Users.List(c)
if err != nil {
return err
}
c.Respond(u, http.StatusOK)
return nil
}
// Retrieve returns the specified user from the system.
// 200 Success, 400 Bad Request, 404 Not Found, 500 Internal
func (usersHandle) Retrieve(c *app.Context) error {
u, err := services.Users.Retrieve(c, c.Params["id"])
if err != nil {
return err
}
c.Respond(u, http.StatusOK)
return nil
}
// Create inserts a new user into the system.
// 200 OK, 400 Bad Request, 500 Internal
func (usersHandle) Create(c *app.Context) error {
var u models.User
if err := json.NewDecoder(c.Request.Body).Decode(&u); err != nil {
return err
}
if v, err := services.Users.Create(c, &u); err != nil {
switch err {
case app.ErrValidation:
c.RespondInvalid(v)
return nil
default:
return err
}
}
c.Params = map[string]string{"id": u.UserID}
return Users.Retrieve(c)
}
// Update updates the specified user in the system.
// 200 Success, 400 Bad Request, 500 Internal
func (usersHandle) Update(c *app.Context) error {
var u models.User
if err := json.NewDecoder(c.Request.Body).Decode(&u); err != nil {
return err
}
if v, err := services.Users.Update(c, c.Params["id"], &u); err != nil {
switch err {
case app.ErrValidation:
c.RespondInvalid(v)
return nil
default:
return err
}
}
return Users.Retrieve(c)
}
// Delete removed the specified user from the system.
// 200 Success, 400 Bad Request, 500 Internal
func (usersHandle) Delete(c *app.Context) error {
u, err := services.Users.Retrieve(c, c.Params["id"])
if err != nil {
return err
}
if err := services.Users.Delete(c, c.Params["id"]); err != nil {
return err
}
c.Respond(u, http.StatusOK)
return nil
}