[英]How can I change JavaScript HTTP post request code to C#, using 'no-cors'?
[英]Can I transform this C# http POST request to Azure Computer Service to JavaScript?
我正在尝试将一些 C# 转换为 JavaScript,因为我正在构建一个 JavaScript 应用程序来执行计算机视觉!
C#“快速入门”在这里, https://docs.microsoft.com/nb-no/azure/cognitive-services/Computer-vision/QuickStarts/CSharp-analyze
我想对端点做的是通过 HTTP POST 向它发送图像。
到目前为止我的代码是:
<form enctype="multipart/form-data">
<input name="file" type="file" />
<input type="button" value="Upload" />
</form>
<script src="https://code.jquery.com/jquery-3.4.1.min.js"
integrity="sha256-CSXorXvZcTkaix6Yvo6HppcZGetbYMGWSFlBw8HfCJo=" crossorigin="anonymous"></script>
<script>
$(function () {
});
$(':button').on('click', function () {
var uriBase = "https://westcentralus.api.cognitive.microsoft.com/vision/v1.0";
var authorizationToken = "-";
var requestParameters = "visualFeatures=Categories,Description,Color";
var computerVisionEndpoint = uriBase + "?" + requestParameters;
$.ajax({
url: computerVisionEndpoint,
type: 'POST',
beforeSend: function (request) {
request.setRequestHeader("Content-Type", "application/octet-stream");
request.setRequestHeader("Ocp-Apim-Subscription-Key", authorizationToken);
},
data: new FormData($('form')[0]),
}).done(function (data) {
console.log("DONE!");
debugger;
}).fail(function (xhr, status, error) {
console.log("FAIL!");
debugger;
});
});
</script>
这里的问题是我收到错误“jquery-3.4.1.min.js:2 Uncaught TypeError: Illegal invocation”。
您必须将processData: false
添加到您的 ajax 请求中。
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