Importing attachments from JIRA Cloud to JIRA Server

[Michael Voronkov]

We are on-boarding a sister company and I need to migrate their projects (over 20K of issues) from JIRA Cloud (v7.2) into our JIRA self-hosted JIRA Server (v6.3)

They really want to migrate all attachments 

Help needed:

1. Is there a way to import attachments?
2. Is CSV the only and the best way for this import?

Thanks in advance!

Michael

[Tarun Sapra]

I am planning to write a python script, wherein the newly imported issues carry their original issueKey in an custom field and the script would copy the attachment based on the original issues key from the source instance and attach the attachment file to the new issue in the target instance.

[Michael Voronkov]

We ended up writing a C# program to attach files through JIRA APIs

[Tarun Sapra]

I am facing a similar situation, Did you manage to find a way out of it?

[Elifcan Cakmak]

hi,

did you check out this document?

https://confluence.atlassian.com/jirakb/bulk-import-attachments-to-jira-issues-via-rest-api-729750741.html

[Michael Voronkov]

Thanks Elifcan.  The above instructions imply direct access to OnDemand Database, which is not allowed: https://confluence.atlassian.com/cloud/restricted-functions-in-atlassian-cloud-apps-744721664.html