HTTP POST 请求 Ionic 3 给出 403 forbidden

Question

我目前正在开发基于 ionic 3.9.2 的应用程序。我正在尝试向 API 发送 POST 请求，但收到 403 禁止请求。最初我有一个 CORS 问题，但我临时将 https://cors-anywhere.herokuapp.com/ 添加到 URL 以绕过它。这是函数：

代金券-details.ts:

editVoucher(voucher) {
voucher.Comments = (voucher.Comments || " ");
if (!voucher.Comments.includes('Edited via Guide App')) {
  voucher.Comments += " Edited via Guide App";
}
//WORKS UP TILL HERE
this.voucherService.editVoucher(voucher)
//      .map((res) => res.json())
  .map((res) => res)
  .subscribe(
    (res) => {
      console.log("old voucher id", voucher.voucher_Id);
      console.log("new voucher id", res);
      this.showSuccess("Voucher updated successfully");
    },
    (err) => {
      console.log("Error occured while updating voucher id "),
        this.showError("Oops, an error occured. Please try again");
    }
  );

}

它引用的函数 voucherService.editVoucher(voucher) 在这里：

voucher.ts:

 public editVoucher(voucherToUpdate) {
    //application/x-www-form-urlencoded
    const httpOptions = {
        headers: new HttpHeaders({
          'Content-Type':  'application/json',
         // Authorization: 'my-auth-token'
        })
      };
    return this.HttpClient.post(`https://cors-anywhere.herokuapp.com/${API_BASE_URL}/Api/GuideApp/UpdateVoucher`, {

        Voucher: voucherToUpdate,
        tenantId: voucherToUpdate.tenantId
        
    }, httpOptions);
    
}

Answer 1

让我们承认您的代码没有问题，并且您根据服务器的需要传递了您的身份验证凭据。 cors-anywhere 有一些限制 as mentioned here:

From February 1st. 2021, cors-anywhere.herokuapp.com will only serve requests after the visitor has completed a challenge: The user (developer) must visit a page at cors-anywhere.herokuapp.com to temporarily unlock the demo for their browser. This allows developers to try out the functionality, to help with deciding on self-hosting or looking for alternatives.

尝试在您的浏览器上手动解锁：https://cors-anywhere.herokuapp.com/corsdemo

HTTP POST 请求 Ionic 3 给出 403 forbidden

HTTP POST request Ionic 3 gives 403 forbidden

typescript

api

ionic-framework

https

ionic3