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phishseng91
Frequent Visitor

Flow not working due to 'null' - adding link of Forms attachment to Sharepoint List

Hello there,

 

I have created an automation to add a Forms attachment into a Sharepoint List, under a Hyperlink column as below:

phishseng91_1-1623999885032.png

 

phishseng91_0-1623999403843.png

I used the expression first(body('Parse_JSON_-_Get_Forms_attachment'))?['link']

 
The problem is now that if there are no attachments, it creates an error where the first() expression expects an array but gotten a null instead. How do i edit the expression to work for a possible 'null' situation as well?
1 ACCEPTED SOLUTION

Accepted Solutions
Expiscornovus
Multi Super User
Multi Super User

Hi @phishseng91,

 

You could check if the body of the Parse Json action is empty. If not, collect the first item.

 

Below is an example of that approach.

Replace the 'Not empty, do something' with whatever you want to do. In this case collecting the first item of the array.

if(empty(body('Parse_JSON_-_Get_Forms_attachment')), '', 'Not empty, do something')

 



Happy to help out! 🙂

Interested in more #PowerAutomate #SharePointOnline or #PowerVirtualAgents content?
Visit my blog, Subscribe to my YouTube channel or Follow me on Twitter


View solution in original post

7 REPLIES 7
Expiscornovus
Multi Super User
Multi Super User

Hi @phishseng91,

 

You could check if the body of the Parse Json action is empty. If not, collect the first item.

 

Below is an example of that approach.

Replace the 'Not empty, do something' with whatever you want to do. In this case collecting the first item of the array.

if(empty(body('Parse_JSON_-_Get_Forms_attachment')), '', 'Not empty, do something')

 



Happy to help out! 🙂

Interested in more #PowerAutomate #SharePointOnline or #PowerVirtualAgents content?
Visit my blog, Subscribe to my YouTube channel or Follow me on Twitter


phishseng91
Frequent Visitor

Hello @Expiscornovus !

 

Thank you so much! It works now!

Bro, PLEASE help me!!! 

This solution that you gave us really worked! But I'm trying to set if the 'Parse Json' is NOT EMPTY, then made a "hyperlink" to display in my Sharepoint list column...

 

if(empty(body('Parse_JSON_2')), '''<a href="@{variables('my variable which gets the attachment')}">Image</a>') ... But the Automate says it INVALID... 

Please, could you help me?

Today my flow its like this:
ELISILU_0-1662485803534.png

 





Expiscornovus
Multi Super User
Multi Super User

Hi @ELISILU,

 

It looks like in the expression you are referring to the body of a Parse Json 2 action. However, in your screenshot I only see a Parse Json 8 action. Can you change that in your expression? 

 

And in which action are you trying to use that expression? Within the Create File 8 action in the apply to each loop?



Happy to help out! 🙂

Interested in more #PowerAutomate #SharePointOnline or #PowerVirtualAgents content?
Visit my blog, Subscribe to my YouTube channel or Follow me on Twitter


Hi @Expiscornovus, thank you for answer me and for the tips!

First, I need to explain to you that I've just send the wrong print hahah...

So, here it goes...
I have 3 conditions with that estructure ↓

ELISILU_0-1662587807776.png

If the user upload an attachment, my conditions runs on right side (if no side)... 

But at the end of my flow I have an action 'Create Item' on Sharepoint... And there is my problem... 

ELISILU_1-1662588309972.png

If you look those columns named: "Evidências (5S5), Evidências (5S6), Evidências (5S7)", they're resposible to get the attachments link...
Before my necessity to create this "if", I've inserted an href like this: <a href='Anexo 5S6'>Image</a>..

But when the user don't upload an attach, the flows was inputing only the word "Image"...

 

I want to insert the attachment's link on those columns ONLY if the user has entered an attach, if no i want to keep those fiends in blank...

 

if(empty(variables('Anexo 5S6')), '''<a href='Anexo 5S6'>Image</a>') - but it doesnt works!!!

I need to if my variable 'Anexo 5S6' IS NOT empty, then shows de HREF in my SP column (multiline of string)... like this ↓
ELISILU_2-1662588806034.png

 



Expiscornovus
Multi Super User
Multi Super User

Hi @ELISILU,

 

Can you try the expression below:

if(empty(variables('Anexo 5S6')), '', concat('<a href="',variables('Anexo 5S6'),'">Image</a>'))


Happy to help out! 🙂

Interested in more #PowerAutomate #SharePointOnline or #PowerVirtualAgents content?
Visit my blog, Subscribe to my YouTube channel or Follow me on Twitter


ELISILU
Frequent Visitor

@Expiscornovus You're the best!!!!!!!! Thank you for that.... I was more than 2 weeks trying to solve this "bug", but all the forums/solutions that I've saw doesn't helps!!!

Now, with this expression you gave me it works perfectly!!!!

Thank u again!!! @Expiscornovus 

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