情感分析能力BI

Question

我试图使用Power和Microsoft认知文本分析来进行情感分析。

这是我的查询代码。

    (Source as table) as any =>
let
    JsonRecords = Text.FromBinary(Json.FromValue(Source)),
    JsonRequest = "{""documents"": " & JsonRecords & "}",

    JsonContent = Text.ToBinary(JsonRequest, TextEncoding.Ascii),
    Response =
        Web.Contents("https://westcentralus.api.cognitive.microsoft.com/text/analytics/v2.0",
            [
                Headers = [#"Ocp-Apim-Subscription-Key"= APIKey,
                           #"Content-Type"="application/json", Accept="application/json"],
                Content=JsonContent
            ]),
    JsonResponse = Json.Document(Response,1252)
in
    JsonResponse

就我而言，我确实正确地创建了参数。我还检查了我的钥匙和API。

我收到这个错误：

“”查询中发生错误。DataSource.Error: Web.Contents未能从'https://westcentralus.api.cognitive.microsoft.com/text/analytics/v2.0‘(404)获得内容:资源未找到详细信息: DataSourceKind=Web DataSourcePath=https://westcentralus.api.cognitive.microsoft.com/text/analytics/v2.0 Url=https://westcentralus.api.cognitive.microsoft.com/text/analytics/v2.0

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Answer 1

此文档表示POST请求是指向/sentiment端点的，因此您应该将POST更新为https://westcentralus.api.cognitive.microsoft.com/text/analytics/v2.0/sentiment。