postman_操作 《三》
三、示例最后完整的看一下我用的例程。这个例子是一个非常简单的小系统，用户可以注册并登录，然后在系统里新建充值卡，并给这张卡充值。整个流程如下：1. 注册生成一个随机字符串作为用户名和昵称postman.setEnvironmentVariable("random_username", ("0000" + (Math.random()*Math.pow(36,4) << 0).toString(36)).slice(-4));发起请求POST /index.php/users HTTP/1.1Host: postmanexample.bayes.cafeCache-Control: no-cachePostman-Token: 76791813-aac2-71fb-cad4-3e737f37c4d0Content-Type: application/x-www-form-urlencoded username=2mjk&password=123456&nickname=2mjk
运行测试、检查结果tests["Status code is 201"] = responseCode.code === 201;
2. 登录直接用刚才生成的环境变量发起请求POST /index.php/authentication HTTP/1.1Host: postmanexample.bayes.cafeCache-Control: no-cachePostman-Token: aac7d0ac-e0e3-ecf2-39da-b8dca672e3d7Content-Type: application/x-www-form-urlencoded username=2mjk&password=123456
运行测试、检查结果，并将返回的token记录下来tests["Status code is 200"] = responseCode.code === 200; var data = JSON.parse(responseBody);postman.setEnvironmentVariable("token", data.token);
3. 添加一张卡先生成一个卡号和卡名postman.setEnvironmentVariable("random_cardno", Math.round(Math.random()*9999999)); postman.setEnvironmentVariable("random_cardname", ("0000" + (Math.random()*Math.pow(36,4) << 0).toString(36)).slice(-4));
然后发起请求，这里调用了刚才获取到的Token，放在header的自定义字段里作为鉴权（SAE不能用Authorization这个字段，不清楚原因）POST /index.php/cards HTTP/1.1Host: postmanexample.bayes.cafeX-Authorization: d4c4a0b7b36c73e7a13b7e24a596093bCache-Control: no-cachePostman-Token: d44d573f-f17a-366c-2cd7-1d5b8b709233Content-Type: application/x-www-form-urlencoded cardno=1385526&desc=2mo8
运行测试tests["Status code is 200"] = responseCode.code === 200;
4. 查询刚才生成的卡发起请求，调用了刚才生成的卡号GET /index.php/cards/1385526 HTTP/1.1Host: postmanexample.bayes.cafeCache-Control: no-cachePostman-Token: 1e5aca57-c3bb-7404-2791-c639cd60b5c8
运行验证，和刚才生成的卡名对比，并记录新卡的IDvar data = JSON.parse(responseBody);tests["check cardname"] = data.desc === environment.random_cardname; postman.setEnvironmentVariable("new_card_id", data.id);
5. 充值发起请求，使用了刚才获得的新卡IDPOST /index.php/deposit HTTP/1.1Host: postmanexample.bayes.cafeX-Authorization: d4c4a0b7b36c73e7a13b7e24a596093bCache-Control: no-cachePostman-Token: 388c95e0-b5ce-9bbf-5816-084db7523384Content-Type: application/x-www-form-urlencoded cardid=1&amount=10
运行验证（由于是新建的用户，没有余额，无法给卡片充值，故返回403 Forbidden）tests["Status code is 403"] = responseCode.code === 403;
P.S.postmanexample.bayes.cafe这个网站是真实存在的，可以Import我上传的Collection(https://www.getpostman.com/collections/96b64a7c604072e1e4ee)到你自己的Postman中，并设置环境变量url为http://postmanexample.bayes.cafe，就能运行这个Collection看效果了。服务器端程序的代码已经在GitHub开源。
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