Deno JWT token 应用 | 易学教程

视频演示:

https://www.bilibili.com/video/BV1BT4y1E7Nh/?p=12

一起来完成以下步骤:

引用之前的工程代码
创建员工信息interface和员工数组array
生成token
校验token是否正确
运行命令: deno run --allow-net --allow-read main.ts

import { Context } from "https://deno.land/x/oak/mod.ts";
import { key } from "../middlewares/key.ts";
//引入jwt 模块功能
import { makeJwt, setExpiration, Jose, Payload } from "https://deno.land/x/djwt/create.ts"
import employees from "../models/employees.ts";
 //获取工程目录方法 const { cwd } = Deno; //jwt头部 const header: Jose = {  alg: "HS256",  typ: "JWT", }   /**  * 定义Controller  */ class Controller {  /**  * 首页  * @param ctx  */  static async hello(ctx: any) {  //cwd获取当前工程目录   //注意 ' !== `  ctx.render(`${cwd()}/views/index.ejs`, {  title: "Testing",  data: { name: " Deepincoding" }  });  }   //游客  static async guest(ctx: Context) {  ctx.response.body = "Hi Guest";  }    //获取token  static async token(ctx: Context) {  //获取员工信息  const { value } = await ctx.request.body();  console.log({ value });  //检查员工是否存在  const hadEmployee = employees.find(employee => {  return employee.username === value.username && employee.password === value.password;  });   if (hadEmployee) {  //JWT body 可以放任何你想放的内容  const payload: Payload = {  iss: hadEmployee.username,  exp: setExpiration(new Date().getTime() + 60000),  }  //生成JWT  const jwt = makeJwt({ key, header, payload });   ctx.response.status = 200;  //返回  ctx.response.body = {  id: hadEmployee.id,  username: hadEmployee.username,  jwt,  }  } else {  ctx.response.status = 422;  //返回提示信息  ctx.response.body = {  message: 'Invalid username or password'  };  }   }  //需要token才能访问admin  static async admin(ctx: Context) {  ctx.response.body = "Hi Admin";  }  }  //导出Controller export default Controller;

#middlewares/authMiddleware.ts


import { Context } from "https://deno.land/x/oak/mod.ts";
import { validateJwt } from "https://deno.land/x/djwt/validate.ts"
import { key } from "./key.ts";

//定义 authMiddleware 检查token有效性 const authMiddleware = async (ctx: Context, next: any) => {   //token 放在header里面传过来  const headers: Headers = await ctx.request.headers;   const authorization = headers.get('Authorization')  // 传过来的token是否以bearer开头 + 空格   if (!authorization || !authorization.split(' ')[1] ) {  ctx.response.status = 401;  return;  }  const jwt = authorization.split(' ')[1];  //校验token  const isValidateJwt = await validateJwt(jwt, key);   //如果token正确,程序继续往下走，否则返回401  if (isValidateJwt.isValid) {  await next();  return;  }  ctx.response.status = 401;  ctx.response.body = { message: 'Invalid jwt token' }; }  export default authMiddleware;

#models/employee.ts

//定义interface
export interface Employee{
    id: string,
    username: string,
    password: string
}  //初始化员工列表 const employees: Array<Employee> =[  {  id: "1",  username: "michael",  password: "123456"  },  {  id: "2",  username: "alex",  password: "654321"  } ] //导出 export default employees;

#routers/router.ts


//引入 Router
import { Router } from "https://deno.land/x/oak/mod.ts";
//引入自定义Controller
import Controller from "../controllers/Controller.ts";
import authMiddleware from "../middlewares/authMiddleware.ts";  //创建 router const router = new Router();  //首页uri router.get("/",Controller.hello);  //不需要token可以访问guest router.get("/guest",Controller.guest); //根据用户名和密码获取token router.post("/token",Controller.token); //这里加上token校验的方法 router.get("/admin",authMiddleware,Controller.admin);   //导出 router export default router;

#main.ts

//引入 Application
import { Application } from "https://deno.land/x/oak/mod.ts"
//引入页面渲染模块
import {viewEngine,engineFactory,adapterFactory} from "https://deno.land/x/view_engine/mod.ts";
//引入 router
import router from "./routers/router.ts";  //获取页面引擎 const ejsEngine = engineFactory.getEjsEngine(); //获取oak适配器 const oakAdapter = adapterFactory.getOakAdapter();  // 创建app const app = new Application();  // 应用页面渲染引擎 app.use(viewEngine(oakAdapter,ejsEngine)); //应用 router app.use(router.routes()); app.use(router.allowedMethods());  //log日志 console.log("Server Port 8000");  await app.listen({port: 8000 })

来源：oschina

链接：https://my.oschina.net/u/3270570/blog/4315122

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