Schema Registry

JSON Schema definitions are stored under the server data directory and validated before append when an event carries schema name/version.

Register

./bin/chronacta schema register \
  -name order-created \
  -version 1 \
  -file order-created.schema.json \
  -compatibility none

Compatibility modes (checked against the latest previous version of the same name):

Mode	Meaning
none	No evolution check (default)
backward	New schema can read data written with the previous schema
forward	Previous schema can read data written with the new schema
full	Both backward and forward

Other commands

./bin/chronacta schema get -name order-created -version 1
./bin/chronacta schema list
./bin/chronacta schema validate -name order-created -version 1 -data '{"order_id":"1"}'

Append with schema metadata:

./bin/chronacta append -stream orders-1 -type OrderCreated \
  -data '{"order_id":"1"}' \
  -schema-name order-created -schema-version 1 \
  -expected-version -2