Invoke Webservice - Send HTTP Request to Power Automate Online Flow

(0) Share

Report

Posted on by SwiPowE_ch

Hi to all,

I am trying to create a new item in a sharepoint list using the "invoke webservice" function in PAD.

this is the flow in PA online:

which works with postman without problems:

My PAD Flow looks like:

as the link contains '%' I put it in a variable...looks good:

The function is:

The web service response:

Status Code 400

WebService response:

{"error":{"code":"InvalidRequestContent","message":"The request content is not valid and could not be deserialized: 'Unexpected character encountered while parsing value: +. Path '', line 0, position 0.'."}}

Does anybody has an idea what to change? Is it connected to the [%] signs in the link? What is it to be entered in body?

Thank you and best regards

SwiPowE aka Bernd

Categories:

Power Automate Desktop

I have the same question (0)

All responses (5)

Answers (1)

VJR 7,635 on at

Like (1)

Report
Copy link

Link copied!

@SwiPowE_ch , for testing purposes try to pass the same hard coded string that was passed in Postman instead of the variable to see if the % sign is causing any problem.

Was this reply helpful? Yes No
SwiPowE_ch 78 on at

Like (0)

Report
Copy link

Link copied!

Hi VJR,

thank you for your answer!

The reason for the variable was that the link contains some [%] signs and I wasn't able to make it work as hardcoded text... do you have any ideas how to achieve it?
Do you know if there exists a "dummy" url to send the data which is without [%] signs so I can figure out if that is the cause for the error?

Thank you and best regards

Bernd aka SwiPowE

Was this reply helpful? Yes No
VJR 7,635 on at

Like (1)

Report
Copy link

Link copied!

Hi @SwiPowE_ch

I think the %2f that is seen in the url represents a forward slash
https://www.w3schools.com/tags/ref_urlencode.ASP

Was this reply helpful? Yes No
Verified answer

yoko2020 495 on at

Like (5)

Report
Copy link

Link copied!

@SwiPowE_ch
Click advanced section and turn off encode request body.

Was this reply helpful? Yes No
SwiPowE_ch 78 on at

Like (1)

Report
Copy link

Link copied!

My hero @yoko2020 !

it worked! Great, just had to deactivate this option, then received a '202' Status Code and the action in Power Automate Online was executed successful !! This opens a lot of new options working with sharepoint as a datasource...

Strangely I didn't receive a response... Maybe it is normal when it is successful?

@VJR: Thank you again for your efforts, tried your approach yesterday and the link with the replaced letters worked in Postman, but I received still an error message when firing the action in PAD.

Thank you both so much, this really is huge step for me!

Best

Bernd aka SwiPowE

Was this reply helpful? Yes No