How to pass parameter in the body of POST API call?

[Anonymous]

Hi All,

I am quite new to Power Query / BI. Your support would be greatly appreciated. 

I am receiving data via API using Post method. See the code below. I am using a parameter LastYear in the body of the request. 

let
lastyearparameter = LastYear,

//LastYear is a parameter (text)

url = "https://url.url.com/endpoint/APIKEY",
content= "{
""year"" : "& lastyearparameter &",
""ID"" : ""0""}",


Source= Json.Document(Web.Contents(url,
[Headers = [#"user" = "USERKEY", #"company" = Company, #"Content-type" = "application/json"],
Content = Text.ToBinary(content)])),

in Source

This works fine, it returns the data of the given year from LastYear parameter. BUT:

If I am trying to use the same method at another endpoint with a parameter which contains a given company code, I get 400 - Bad request error. See my code below:

let

companyparameter = Company

//Company is a parameter

url = "https://url.url.com/endpoint2/APIKEY",
content = "{
""starting-date"" : ""2015-01-01"",
""until-date"" : ""2030-12-31"",
""companies"" : "& companyparameter &"}",

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

in Source

Could you help me, what am I doing wrong? If am writing the specific code (e.g. ""X4"") instead of "& companyparameter &" then I am getting back the correct dataset. 

Thx

David

[Anonymous]

Hi @Anonymous ,

Whether the problem has been resolved? If yes, could you please mark the helpful post as Answered? It will help other members in the community find the solution easily if they face the similar problem with you. Thank you.

Best Regards

[mahoneypat]

Please try replacing this line

""companies"" : """ & companyparameter &"""}",

Pat

[Anonymous]

Thx Pat, I replaced, but still no result, I am getting bad request error.

[mahoneypat]

Try just returning your content variable in the "in", so you can see what is actually being converted to binary.  That's how I thought it was fixed.  Note there is an extra carriage return in there that I just removed.

Pat