[BEAM-13566] [Playground] Add logic of sending preparation's output on the backend side

• Type: Sub-task
• Status: Resolved
• Priority: P3
• Resolution: Implemented
• Fix Version/s: Missing
• Component/s: beam-playground
• Labels: beam-playground-backend
• Assignee: Aydar Zaynutdinov
• Reporter: Aydar Zaynutdinov
• Created: 28/Dec/21 15:31
• Updated: 13/Jan/22 21:49
• Resolved: 06/Jan/22 09:08

Description

Need to add logic to keep preparation's output to the cache and implement a new API method GetPreparationOutptut which will return preparation's output from the cache. 

Issue Links

• links to: GitHub Pull Request #16383