LocalVariables integration does not capture full nested object payload in AWS Lambda (even when serializable) #109638
Description
Environment
SaaS (https://sentry.io/)
Steps to Reproduce
Using @sentry/aws-serverless v10.36.0 in AWS Lambda
includeLocalVariables: true
Added custom localVariablesIntegration({ includeOutOfAppFrames: true })
extraErrorDataIntegration() also enabled
Threw an error at a point close to the request source (using undici)
Attempted to increase normalizeDepth
Logged payload locally and via JSON.parse(JSON.stringify(payload))
Expected Result
Fully serializable nested object should appear in Local Variables
Same object appears in full if attached via extra
Ideally, Local Variables capture should either preserve full object or clearly document any depth/size limits
Actual Result
Nested object is truncated or missing in Local Variables
Logging locally shows full object
JSON.parse(JSON.stringify(payload)) preserves entire object
Attaching via extra shows the complete payload in Sentry
Increasing normalizeDepth does not change Local Variables capture
No debug warnings about truncation are emitted
Things tried:
-
Enabled includeLocalVariables: true in @sentry/aws-serverless
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Added a custom localVariablesIntegration({ includeOutOfAppFrames: true })
-
Added extraErrorDataIntegration()
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Increased normalizeDepth
-
Logged payload locally -> confirmed full object exists
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Serialized payload via JSON.parse(JSON.stringify(payload)) -> confirmed full object
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Verified payload_debug sent via extra -> full object appears in Sentry
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Tested throwing error close to request source (undici)
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Checked debug logs -> no warnings or truncation messages
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Considered Lambda async boundary / flush issues
Looks similar to:
Related to internal ticket #173815
Product Area
Issues
Link
No response
DSN
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Version
No response