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Copy attachments between items in DevOps

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Posted on by jg_lopes

Hi there.

I had a flow that when the user fills a "New Demand Request" (a new item I created in DevOps, like a little interview between P.O. and user), the flow create a User Story using what has been inputed by the user in a template description.

But, I can't figure out how to transfer the attachments that user eventually upload in "New Demand Request" to the "User Story" using the flow. I had tried some ways to see if I can get this exposed through DevOps actions and triggers, but with no lucky.

So I need help. Is there anyone that gone through this problem and found a solution?

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Building flows

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Expiscornovus 33,997 Most Valuable Professional on at

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Hi @jg_lopes,

This should be possible by using the Send an http request to Azure DevOps and Get Attachment method from the Azure DevOps Rest API:
https://docs.microsoft.com/en-us/rest/api/azure/devops/wit/attachments/get?view=azure-devops-rest-6.0
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Expiscornovus 33,997 Most Valuable Professional on at

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For the upload part you can follow the steps from this blog. From the Post the Attachment to DevOps REST API part. I have tested it myself and it works pretty good:
https://www.fidelityfactory.com/blog/2019/10/14/use-ms-flow-to-add-an-attachment-in-azure-dev-ops

To demonstrate that example I have tested all the steps.

1. Get the source Work Item

2. Get attachment of source Work Item
3. Upload attachment as new attachment. The body is the output of step two.
4. Create new work item with new attachment as related item. Below is a sample body for this request. Don't forget that the content-type for this request is a bit different. Btw, you could also parse the json of step 3 to extract the attachment url.
[ { "op": "add", "path": "/fields/System.Title", "value": "Test Title" }, { "op": "add", "path": "/relations/-", "value": { "rel": "AttachedFile", "url": "yourattachmentfileurlfromstep3", "attributes": { "comment": "Test Comment" } } } ]
jg_lopes 4 on at

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Thanks @Expiscornovus !

Works like a charm. I'd obviously to made some changes to work in my flow, but at the end this post had clarify for me some concepts behind Power Automate and made me study more the Azure APIs.

So, I made a mix between "Create a item" and use of some GET, POST and PATCH through "send a http request", but at the end of the day, everything works!

Regards,

Juliano