Api版本标头未正确发送

Question

亲爱的朋友，我遇到一个奇怪的问题，我尝试连接到API，当我尝试在邮递员或失眠症患者中提出API请求时，一切正常。当我在我的网站上甚至在本地主机上使用相同的代码时，潜在客户请求都无法正常运行，并告诉我未定义api版本。

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script>
    var settings = {
        "async": true,
        "crossDomain": true,
        "url": "https://affiliate-api.tradingcrm.com:4477/token",
        "method": "POST",
        "data": "{ userName: \"alpt\", password: \"Alpt@12345\" }"
    }

    $.ajax(settings).done(function (response) {
        var settings2 = {
            "async": true,
            "crossDomain": true,
            "url": "https://affiliate-api.tradingcrm.com:4477/accounts/lead",
            "method": "POST",
            "headers": {
                "Authorization": "Bearer " + response.Token,
                "Api-Version": "3",
                "Content-Type": "application/json"
            },
            "data": "{firstName:\"test\",lastName:\"test2\",email:\"test@test.test\"}"
        }
        
        $.ajax(settings2).done(function (response2) {
            console.log(response2.accountId);
        });
    });
</script>

Answer 1

其CORS问题，API服务器缺少标头Access-Control-Allow-Headers，因此您无法设置自定义请求标头，例如"Api-Version": "3"，解决方案使用CORS代理或从服务器检索数据或询问您的提供者来添加它。

Postman与Postman的不同之处在于Postman并不询问服务器API，它只是发送标头，而Browser是因为它与其他Domain的要求是，它会通过对OPTIONS之前的标头执行Post请求提出要求。

Access-Control-Request-Headers: api-version,authorization,content-type

然后，服务器API需要使用标头进行响应

Access-Control-Allow-Headers: api-version,authorization,content-type

CORS代理测试：

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script>
  var settings = {
    "async": true,
    "crossDomain": true,
    "url": "https://affiliate-api.tradingcrm.com:4477/token",
    "method": "POST",
    "data": "{ userName: \"alpt\", password: \"Alpt@12345\" }"
  }

  $.ajax(settings).done(function(response) {
    console.log('requesting using CORS Proxy.....');
    var settings2 = {
      "async": true,
      "crossDomain": true,
      "url": "https://cors-anywhere.herokuapp.com/https://affiliate-api.tradingcrm.com:4477/accounts/lead",
      "method": "POST",
      "headers": {
        "Authorization": "Bearer " + response.Token,
        "Api-Version": "3",
        "Content-Type": "application/json"
      },
      "data": "{firstName:\"test\",lastName:\"test2\",email:\"test@test.test\"}"
    }

    $.ajax(settings2)
    .done(function(response2) {
      console.log(response2.accountId);
    })
    .fail(function(jqXHR, textStatus) {
      console.log(textStatus);
      console.log(jqXHR.responseText);
    });
  })

</script>