[SERVER-82330] Ability to decode change stream resume tokens in JS tests Created: 19/Oct/23  Updated: 20/Oct/23

Status: Backlog
Project: Core Server
Component/s: None
Affects Version/s: None
Fix Version/s: None

Type: Improvement Priority: Major - P3
Reporter: Romans Kasperovics Assignee: Backlog - Query Execution
Resolution: Unresolved Votes: 0
Labels: None
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Assigned Teams:
Query Execution
Participants:

 Description   

Currently, we cannot decode change stream resume tokens in our JavaScript tests. Resume token contain a bunch of information such as timestamp, version, object IDs, transaction-related info etc., and it is key-string encoded. 

It would be very useful to decode this information for assertion and debugging.

We can either port an existing TypeScript or C++ code to JavaScript, or expose/link the relevant server code function to the JavaScript environment in mongo (old) shell that we use for testing.


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