Redis Set Example

In the example below, data is captured from the source table named invoice and is written to a Redis set. The connection is an optional parameter that refers to the corresponding connection name defined in config.yaml. When you specify the data_type parameter for the job, it overrides the system-wide setting target_data_type defined in config.yaml.

When writing to a set, you must supply an extra argument, member, which specifies the field that will be written. In this case, the result will be a Redis set with key names based on the key expression (for example, invoices:Germany, invoices:USA) and with an expiration of 100 seconds. If you don't supply an expire parameter, the keys will never expire.

name: Write invoices to set by country
source:
  schema: public
  table: invoice
output:
  - uses: redis.write
    with:
      connection: target
      data_type: set
      key:
        expression: concat(['invoices:', BillingCountry])
        language: jmespath
      args:
        member: InvoiceId
      expire: 100