You can find an answer to your question in the following article:
The idea is:
To Set epic link you have to use the same api as to set any other custom field value to an issue. First you get reference to the Epic link field. Secondly you set it using MutableIssue or IssueService like in the example above.
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As part of the Bitbucket product team I'm always interested in better understanding what kind of impact the use of our tools have on the way you work. In a recent study we conducted of software devel...
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