ID/URI used in JIRA Connector

Currently the id of the solr document is the "self" field that comes from the REST API and has the form http://HOST/rest/api/2/issue/ISSUEID
At least in our project we would like to use the "real human-readable"
url of the issue (not the rest json formatted). (e.g. http://HOST/ISSUEKEY)

• What do others think about it?
• As it doesn't seem that this url can be retrieved anyhow in the API, I guess it has to be composed, Would the mentioned form http://HOST/ISSUEKEY always work?