Power Query, make http POST request with form data

问题

I have a REST API, which accepts only POST requests with form data.

I know that in Power Query JSON requests are like this:

let
    url = "https://example.com",
    body = "{ ""first_param"": ""AAAAA"",  ""second_param"": ""BBBBBB""}",    

    Source = Json.Document(Web.Contents(url,[ Headers = [#"Content-Type"="application/json"], Content = Text.ToBinary(body) ] ))
in
    Source

How it is possible to send form data??

回答1:

Use Uri.BuildQueryString and Json.Document

let
    url = "https://example.com",
    body  = "{ ""first_param"": ""AAAAA"",  ""second_param"": ""BBBBBB""}",
    Parsed_JSON = Json.Document(body),
    BuildQueryString = Uri.BuildQueryString(Parsed_JSON),
    Source = Json.Document(Web.Contents(url,[Headers = [#"Content-Type"="application/json"], Content = Text.ToBinary(body) ] ))
in
    Source

btw, you'd better construct body directly into a record, avoiding text string and double of double quotes )

来源：https://stackoverflow.com/questions/50151940/power-query-make-http-post-request-with-form-data