2024-12-01 09:52:50 +08:00
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# Web全栈开发(Vblog)
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## 软件设计
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### 需求
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管理markdown个文字的一个网站,作者后台发布文章,访客前台浏览查看文章
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### 流程
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### 产品原型
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https://gitee.com/infraboard/go-course/blob/master/new.md#%E6%9E%B6%E6%9E%84%E8%AE%BE%E8%AE%A1
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2024-12-01 09:54:26 +08:00
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2024-12-01 11:06:09 +08:00
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### 架构(BS)和概要设计
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### 业务的详细设计
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2024-12-01 17:17:51 +08:00
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直接使用Go的接口 来定义业务
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```go
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// 业务域
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type Service interface {
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UserService
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InnterService
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}
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// 1. 外部
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type UserService interface {
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// 颁发令牌 登录
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IssueToken(context.Context, *IssueTokenRequest) (*Token, error)
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// 撤销令牌 退出
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RevolkToken(context.Context, *RevolkTokenRequest) (*Token, error)
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}
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type RevolkTokenRequest struct {
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// 访问令牌
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AccessToken string `json:"access_token"`
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// 刷新令牌, 构成一对,避免AccessToken 泄露,用户可以直接 revolk
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RefreshToken string `json:"refresh_token"`
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}
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type IssueTokenRequest struct {
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Username string `json:"username"`
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Password string `json:"password"`
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// 记住我, Token可能1天过期, 过去时间调整为7天
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RememberMe bool `json:"remember_me"`
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}
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// 内部
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type InnterService interface {
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// 令牌校验
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ValidateToken(context.Context, *ValidateTokenRequest) (*Token, error)
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}
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type ValidateTokenRequest struct {
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// 访问令牌
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AccessToken string `json:"access_token"`
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}
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```
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数据库的设计伴随接口设计已经完成
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1. 如何基于Vscode 构造单元测试的配置
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```json
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{
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"go.testEnvFile": "${workspaceFolder}/etc/test.env",
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}
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```
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添加工作目录环境变量
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```
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WORKSPACE_DIR="/Users/xxxx/Projects/go-course/go17/vblog"
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2024-12-01 18:04:02 +08:00
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```
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### 业务模块的实现
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2024-12-08 10:10:37 +08:00
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TDD (Test Drive Development)
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2024-12-08 11:07:03 +08:00
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+ 用户模块
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```go
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// 我要测试的对象是什么?, 这个服务的具体实现
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// Service的具体实现?现在还没实现
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// $2a$10$yHVSVuyIpTrQxwiuZUwSMuaJFsnd4YBd6hgA.31xNzuyTu4voD/QW
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// $2a$10$fe0lsMhM15i4cjHmWudroOOIIBR27Nb7vwrigwK.9PhWdFld44Yze
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// $2a$10$RoR0qK37vfc7pddPV0mpU.nN15Lv8745A40MkCJLe47Q00Ag83Qru
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// https://gitee.com/infraboard/go-course/blob/master/day09/go-hash.md#bcrypt
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func TestRegistry(t *testing.T) {
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req := user.NewRegistryRequest()
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req.Username = "test02"
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req.Password = "123456"
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ins, err := impl.UserService.Registry(ctx, req)
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if err != nil {
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t.Fatal(err)
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}
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t.Log(ins)
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}
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func TestDescribeUser(t *testing.T) {
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ins, err := impl.UserService.DescribeUser(ctx, &user.DescribeUserRequest{
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user.DESCRIBE_BY_USERNAME, "admin",
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})
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if err != nil {
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t.Fatal(err)
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}
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//
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// if ins.Password = in.Password
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t.Log(ins.CheckPassword("1234567"))
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}
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```
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```go
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var UserService user.Service = &UserServiceImpl{}
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// 定义一个struct, 用于实现 UserService就是刚才定义的接口
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// 怎么才能判断这个结构体没有实现这个接口
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type UserServiceImpl struct {
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}
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// DescribeUser implements user.Service.
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func (u *UserServiceImpl) DescribeUser(ctx context.Context, in *user.DescribeUserRequest) (*user.User, error) {
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query := datasource.DBFromCtx(ctx)
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switch in.DescribeBy {
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case user.DESCRIBE_BY_ID:
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query = query.Where("id = ?", in.Value)
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case user.DESCRIBE_BY_USERNAME:
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query = query.Where("username = ?", in.Value)
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}
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ins := &user.User{}
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if err := query.Take(ins).Error; err != nil {
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return nil, err
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}
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return ins, nil
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}
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// Registry implements user.Service.
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func (u *UserServiceImpl) Registry(ctx context.Context, in *user.RegistryRequest) (*user.User, error) {
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ins, err := user.New(in)
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if err != nil {
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return nil, err
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}
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// 明文密码保持到数据库,是不安全
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// 对称加密/非对称, 解密
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// 消息摘要, 无法还原
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// 怎么知道用户的密码 比对hash 123 -> (xxx)
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// md5 sha1/256/512, hmac, ...
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// 结果固定
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hashPass, err := bcrypt.GenerateFromPassword([]byte(in.Password), bcrypt.DefaultCost)
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if err != nil {
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return nil, err
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}
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ins.Password = string(hashPass)
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if err := datasource.DBFromCtx(ctx).Create(ins).Error; err != nil {
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return nil, err
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}
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// context.WithValue()
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// 无事务的模式
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// datasource.DB().Transaction(func(tx *gorm.DB) error {
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// ctx := datasource.WithTransactionCtx(ctx)
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// // 1.
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// svcA.Call(ctx)
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// // 2.
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// svcB.Call(ctx)
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// // 3.
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// svcC.Call(ctx)
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// })
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return ins, nil
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}
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2024-12-08 16:20:18 +08:00
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```
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### 接口层
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Gin
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```go
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package api
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import (
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"github.com/gin-gonic/gin"
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"github.com/infraboard/mcube/v2/http/gin/response"
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"gitlab.com/go-course-project/go17/vblog/apps/token"
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"gitlab.com/go-course-project/go17/vblog/apps/token/impl"
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)
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func NewTokenApiHandler() *TokenApiHandler {
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return &TokenApiHandler{
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token: impl.TokenService,
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}
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}
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type TokenApiHandler struct {
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// 业务控制器
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token token.UserService
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}
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// 提供注册功能, 提供一个Group
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// book := server.Group("/api/tokens")
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func (h *TokenApiHandler) Registry(r *gin.Engine) {
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router := r.Group("/api/tokens")
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router.POST("/issue", h.IssueToken)
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router.POST("/revolk", h.RevolkToken)
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}
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func (h *TokenApiHandler) IssueToken(ctx *gin.Context) {
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in := token.NewIssueTokenRequest("", "")
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if err := ctx.BindJSON(in); err != nil {
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response.Failed(ctx, err)
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return
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}
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ins, err := h.token.IssueToken(ctx.Request.Context(), in)
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if err != nil {
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response.Failed(ctx, err)
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return
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}
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response.Success(ctx, ins)
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}
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func (h *TokenApiHandler) RevolkToken(ctx *gin.Context) {
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in := &token.RevolkTokenRequest{}
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if err := ctx.BindJSON(in); err != nil {
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response.Failed(ctx, err)
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return
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}
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ins, err := h.token.RevolkToken(ctx, in)
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if err != nil {
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response.Failed(ctx, err)
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return
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}
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response.Success(ctx, ins)
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}
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2024-12-08 11:07:03 +08:00
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```
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