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This section lists the Corda CLI A command line tool that supports various Corda-related tasks, including Corda Package Installer (CPI) creation and Corda cluster management. topic sub-commands and arguments. You can use these commands to manually create topics in Kafka The means by which Corda workers communicate, acting as a central message bus between the worker processes. , as described in the Manual Bootstrapping section.

ArgumentDescription
-b, --bootstrap-serverThe address of the bootstrap server.
-k, --kafka-configThe path to the Kafka configuration file.
-n, --name-prefixThe name prefix for topics.
createCreates the required Kafka topics; see create.

The following table lists the create sub-commands and arguments:

ArgumentDescription
-r, --replicasThe number of replicas.
-p, --partitionsThe number of partitions.
-t, --tagOne or more tags associated with topics and their respective number of partitions. For example:
-t t01=partitions:3 -t t02=partitions:599999
-u, --userOne or more Corda workers and their respective Kafka users. For example:
-u crypto=Charlie -u rest=Rob99999
For more information, see Create the Default Topics.
connectConnects to the specified server to create the default topics; see Create the Default Topics.
previewGenerates a preview of the required Kafka topic configuration in YAML; see preview.

The following table lists the connect arguments:

ArgumentDescription
-f, --fileThe name of the configuration file to create the topics; see Modify the Topic Configuration Before Creating.
corda-cli.sh topic -b <BOOTSTRAP-SERVERS> -k config.properties create -r <REPLICAS> -p <PARTITIONS> connect
corda-cli.cmd topic -b <BOOTSTRAP-SERVERS> -k config.properties create -r <REPLICAS> -p <PARTITIONS> connect
corda-cli.sh topic -b <BOOTSTRAP-SERVERS> -k <CLIENT-PROPERTIES-FILE> create -r <REPLICAS> -p <PARTITIONS> preview
corda-cli.cmd topic -b <BOOTSTRAP-SERVERS> -k <CLIENT-PROPERTIES-FILE> create -r <REPLICAS> -p <PARTITIONS> preview

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