使用 Azure Function .NET5 和 HttpRequestData，如何处理文件上传(表单数据)? [英] Using Azure Function .NET5 and HttpRequestData, how to handle file upload (form data)?

问题描述

旧的 Azure 函数允许访问 HttpRequest，这允许我们通过 req.Form.Files 等访问上传的文件.

The older Azure Function gives access to HttpRequest, which allows us to access the uploaded files via req.Form.Files etc.

独立的 .NET5 Azure 函数使用 HttpRequestData 代替，它不提供对 Form 的访问.如何提取发布到该功能的上传文件?

The isolated .NET5 Azure Function uses HttpRequestData instead, which does not give access to the Form. How do I extract the uploaded files posted to the function?

推荐答案

您可以添加 <PackageReference Include="HttpMultipartParser"版本=5.0.0"/> 在您的 .csproj 文件中.并使用 var parsedFormBody = MultipartFormDataParser.ParseAsync(req.Body);，你会得到你的文件.

You can add <PackageReference Include="HttpMultipartParser" Version="5.0.0" /> in your .csproj file. And use var parsedFormBody = MultipartFormDataParser.ParseAsync(req.Body);, you will get your files.

邮递员.

调试时

[Function("test")]
public static HttpResponseData Run1([HttpTrigger(AuthorizationLevel.Anonymous, "get", "post")] HttpRequestData req,
        FunctionContext executionContext
        )
    {
        // get query params
        var testvalue=executionContext.BindingContext.BindingData["testparams"];
        // get form-body        
        var parsedFormBody =  MultipartFormDataParser.ParseAsync(req.Body);
        var file=parsedFormBody.Result.Files[0];

        var response = req.CreateResponse(HttpStatusCode.OK);
        response.Headers.Add("Content-Type", "text/plain; charset=utf-8");

        response.WriteString("Welcome to Azure Functions!");

        return response;
    }

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