Forum Discussion
Error in getting POST request in an API
Hi,
Need your help with my issue in Power BI.
Here is the M-Script
let
url = URL,
body = "{""limit"": -1,""sort"": {""option"": ""ASC"",""field"": [""FlightDate""},""parameters"": [{}],""range"": [{""FlightDate"": {""from"": ""02/14/2020 14:02"",""to"": ""02/18/2020 00:02""}}]}",
Parsed_JSON = Json.Document(body),
BuildQueryString = Uri.BuildQueryString(Parsed_JSON),
Source = Json.Document(Web.Contents(url, [Headers=[#"Content-Type"="application/json"],Content = Text.ToBinary(BuildQueryString)]))
in
Source
But I'm encountering this error:
DataFormat.Error: We found an invalid array in JSON input.
Details:
Value=
Position=60
What is the problem on this? Please advise.
You could simply using different code.
This first example you've posted contained wrong brackets.
Why is that?
Could it be that JSON you've been using in Postman has different nesting structure?
Must your -1 be a text instead of a number?
Honestly, I've been there a couple of times to recognize that a simple typo is throwing things off.
Very had to believe that Power Query is the issue here.
20 Replies
This is working well in Postman but when I translate it to Power BI, the error occurs. I have set a parameter for the URL.
you must have missed/mixed up some brackets here, as the string that step ... produces is not a valid JSON format.
Paste it into a formatter like https://jsonformatter.curiousconcept.com/ and you'll see that the following errors are returned:
Hi ImkeF
I really appreciate your response on this post.
I have corrected the format but there is another error that I encountered.
Expression.Error: We cannot convert the value -1 to type Text.
Details:
Value=-1
Type=[Type]I'm really a newbie in Power BI and your reponse is highly appreciated.
Thank you.
Hello All,
Can I use M script to make a call to a .NET URL in POST method, by passing the selected filter values of PowerBI report, as JSON / any object format ? Please suggest.
Thanks,
Srinivas Pappu.
