The repository is expected to pass a JSON payload providing the path of the repository.
{"path":"protocol://path/to/repo"}
Be careful when using post-commit script in subversion
The first argument $1 provided to post-commit represents the repository path as seen by the server side's process. In most configurations this is usually the file path.
The server's Repository path provided by default '$1' does not equal the URL configured in bamboo. You must alter the value before passing it to bamboo to be a substring of the configured path.
Alternately, you can simply hard-code the top-level URL path on each repository once.
Example
Users and bamboo plan are using an endpoint like https://svn.mycompany/team-one-repo/project-path/trunk
But the server's svn process sees the path to the directory on the server, file:///var/svn-repositories/team-one-repo
Therefore a sample post-commit script to work on all repos would need to update the default argument before POSTing it to the plugin.
#!/bin/bash
repoPath=$1 # remember this is the FS path as seen by the SVN tool, NOT the FQDN seen by the user. You may need to append to the proper host/protocol
#repoPath = "/var/svn-repositories/team-one-repo"
$repoContext=${repoPath#/var/svn-repostories} #strips off the front
#repoContext = "/team-one-repo"
curl -X POST "http://localhost:6990/bamboo/rest/linkedrepositorytrigger/1.0/commit" -d '{"path":"'$repoContext'"}' -H "Content-type: text/json"