feat: add transactionAsyncLocalStorage option to opt in to automatically setting session on all transactions
#14583
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…cally setting `session` on all transactions Fix #13889
hasezoey
requested changes
May 12, 2024
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Mostly looks good to me, though one minor code example thing and failing Replica set tests because of this PR (this time not because of watch errors)
test error for reference:
1) transactions
transactionAsyncLocalStorage option
transaction() sets `session` by default if transactionAsyncLocalStorage option is set:
AssertionError [ERR_ASSERTION]: The input did not match the regular expression /Oops!/. Input:
'AssertionError [ERR_ASSERTION]: 0 == 1'
at processTicksAndRejections (node:internal/process/task_queues:96:5)
at async Context.<anonymous> (test/docs/transactions.test.js:374:7)
hasezoey
added
the
new feature
Co-authored-by: hasezoey <hasezoey@gmail.com>
hasezoey
approved these changes
May 14, 2024
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Fix #13889
Summary
Having to pass
sessionoption to every operation in a transaction is cumbersome and error prone. Node 16+ has a stable AsyncLocalStorage class as part of the async_hooks API; we can use AsyncLocalStorage to setsessionoption by default on all operations in a function as long as the user usesConnection.prototype.transaction()wrapper. Seedocs/transactions.mdchanges for an example.Examples