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API name

ApiKey Value

ProduceRequest

0

FetchRequest

1

OffsetRequest

2

MetadataRequest

3

Non-user facing control APIs

4-7

OffsetCommitRequest

8

OffsetFetchRequest

9

ConsumerMetadataRequest10
Error Codes

We use numeric codes to indicate what problem occurred on the server. These can be translated by the client into exceptions or whatever the appropriate error handling mechanism in the client language. Here is a table of the error codes currently in use:

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