Do not escape comma in query parameter using Web.Contents

[Anonymous]

I need to preserve a comma in a query string value passed to Web.Contents but have been unable to do so successfully.  There's two different instances of using commas in the code below - origins and destinations parameters.   In both cases they are always escaped. 

let 
    DistanceLookup = (SourceLatitude as number,SourceLongitude as number) =>
let   
    Source = Xml.Tables(Web.Contents("http://dev.virtualearth.net/REST/v1/",[
        RelativePath="Routes/DistanceMatrixAsync?origins=" &Text.Trim(Number.ToText(SourceLatitude)) & "," & Text.Trim(Number.ToText(SourceLongitude)),
        Query=
		[		
			destinations="55.55,-55.55",
			travelMode="driving",
			distanceUnit="mi",
            o="xml",
            key="XXXXXX"
		]
    ])),
    #"Changed Type" = Table.TransformColumnTypes(Source,{{"Copyright", type text}, {"BrandLogoUri", type text}, {"StatusCode", Int64.Type}, {"StatusDescription", type text}, {"AuthenticationResultCode", type text}, {"TraceId", type text}})
in
    #"Changed Type"
in 
    DistanceLookup

[BIBB]

Apparently, there is no solution, it seems this is an issue/bug/feature of the library Microsoft uses. By forcing character scaping.

"By default, the library (sic) class un-escapes percent encoded path delimiters"

powerbi - Web.Contents + Uri.EscapeDatastring = PARSER ERROR. PQ converts "%2F" to "/" but shouldn't...

<add> Element for schemeSettings (Uri Settings) - .NET Framework | Microsoft Learn

Your might want to check with your API provider to accept escaped characters. 

[Nathaniel_C]

Hi @Anonymous ,

This might help. https://docs.microsoft.com/en-us/power-bi/service-url-filters

Otherwise you might reach out to imkeF.

Let me know if you have any questions.

If this solves your issues, please mark it as the solution, so that others can find it easily. Kudos are nice too.
Nathaniel