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Base64 Content Transfer Encoding

Encode payloads using Base64 (RFC 4648) for safe transport over text-based protocols.

Configuration

kete.routes.<name>.destination.content-transfer-encoding=base64

Details

Property Value
Config base64
Standard RFC 4648
Java class java.util.Base64

Notes

  • Increases payload size by ~33%
  • Essential for binary payloads (Protobuf, Avro, CBOR, Smile) over text-only transports
  • Consumers decode with any standard Base64 library
  • Often combined with gzip content encoding to offset the size increase

Examples

Binary serializer over text transport: 

kete.routes.sqs.destination.kind=aws-sqs
kete.routes.sqs.serializer.kind=protobuf
kete.routes.sqs.destination.content-transfer-encoding=base64

Gzip + Base64 combination: 

kete.routes.compressed.destination.kind=http
kete.routes.compressed.destination.url=https://example.com/events
kete.routes.compressed.destination.content-encoding=gzip
kete.routes.compressed.destination.content-transfer-encoding=base64