如果JSON响应中不可用，如何检查Angular中的http 200状态代码 [英] How to check http 200 status code in angular if its not available in the json response

问题描述

身份验证服务

 logout() {
      return this.http.post(this.logOutApi, null);
    }

状态代码未在后端的json响应中显示，但在邮递员的状态上显示.如何获取状态码.

The status code doesn't show in the json response from the back end but is shows on postman's status. How to get the status code.

ts文件

logout() {
    this.chk.logout().subscribe((res: any)=>{
      if(res.status == 200) //doesnt work{
      console.log(res);
      })
      }
    }, (err)=>{
      alert("There was a problem logging you out");
    });
}

推荐答案

您可以使用{ observe: 'response' }选项来读取完整的响应，包括成功处理程序中的状态代码.这将使您可以访问类型为 HttpResponse

You can use the option of { observe: 'response' } to read the full response including the status code in the success handler. This would give you access to a response of type HttpResponse:

服务:

logout() {
  // you should consider providing a type
  return this.http.post(this.logOutApi, null, { observe: 'response' });
}

组件:

logout() {
    this.chk.logout().subscribe(
      (res) => {
        if (res.status == 200) {
          console.log(res);
        })
      }
    }, (err) => {
      alert("There was a problem logging you out");
    });
}

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