feat: implement transaction context #315
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| _evaluation_context = EvaluationContext() | ||
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| _hooks: typing.List[Hook] = [] | ||
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| _transaction_context_propagator: TransactionContextPropagator = ( | ||
| NoopTransactionContextPropagator() |
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Should the SDK initialize a functional transaction context propagator by default?
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We do something similar to this in JS. What would the alternative be?
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Having a default implementation that is not a no-op. But it could introduce a performance penalty if you are not using it, so probably better to default to no-op. We might want to put out a warning if you call set_transaction_context with a NoopTransactionContextPropagator though.
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| def get_transaction_context() -> EvaluationContext: | ||
| return _transaction_context_propagator.get_transaction_context() |
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Is this the right API or do we want something based on decorators/context managers?
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Could you elaborate on this? The main use case for accessing transaction context would be within the SDK when it merges context prior to flag evaluation.
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Yes, the comment should have been in the set_transaction_context. I was wondering if we should do something like this instead:
with start_transaction_context(context):
continue_transaction() # context will be cleaned up after the block completesSimilar to the way it works in JS by taking a callback.
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Codecov ReportAttention: Patch coverage is
Additional details and impacted files@@ Coverage Diff @@
## main #315 +/- ##
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- Coverage 97.32% 97.18% -0.15%
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Files 26 28 +2
Lines 1198 1244 +46
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+ Hits 1166 1209 +43
- Misses 32 35 +3
Flags with carried forward coverage won't be shown. Click here to find out more. ☔ View full report in Codecov by Sentry. |
Signed-off-by: Federico Bond <federicobond@gmail.com>
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This is a draft implementation of transaction context propagation via contextvars.