As it is specified in the following forum (https://social.technet.microsoft.com/Forums/lync/en-US/d900be6a-e777-48af-8b88-20c75b8fb4f3/predecessors-in-odata-feed?forum=projectonline) the successor or predecessors’ details could only be retrieved from ProjectServer:
- /pwa/_api/ProjectServer/Projects('<ProjectGUID>')/Tasks('<TaskGUID>')/Predecessors
- /pwa/_api/ProjectServer/Projects('<ProjectGUID>')/Tasks('<TaskGUID>')/Successors
Another way is by sending request to the TaskLinks endpoint for a specifik ProjectId (ProjectServer):
GET /sites/pwa/_api/ProjectServer/Projects(guid'9ad449b5-43b4-ed11-8c1a-00155d68e220')/TaskLinks?$select=*%2CEnd%2FId%2CStart%2FId&$skip=0&$top=400
Is there any other endpoint to get the successors/predecessors information (especially the TaskIds) in a more efficient way?
Thank you.