Calling Azure ML Web Service from Power BI

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dkay84_PowerBI wrote:

My code to call the Cognitive Services API looks as follows:

(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://westus.api.cognitive.microsoft.com/text/analytics/v2.0/sentiment?",
            [
                Headers = [#"Ocp-Apim-Subscription-Key"= "MY KEY",
                           #"Content-Type"="application/json", Accept="application/json"],
                Content=JsonContent 
            ]),
    JsonResponse = Json.Document(Response,1252)
in
    JsonResponse

Since the Azure ML web service gives a url and key, I figured it would be possible to call it similar to the call above.  However, the structure of the call and the required headers is a bit different, and trying to figure out the required pieces from the Azure ML web service API page is difficult.

 

Any thoughts?

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As far as I know, http request is not language-specific, so either Power Query or any other language can send a request with proper request header. In your case, as you don't know how to apply the url and key, which is actually Azure ML specific, then I suggest you firstly ask a question like "how to call the Azure ML web service API" in the dedicated Azure ML forum, then transplant the answer to Power Query.