Uppercase string processor

The uppercase_string processor converts the value (a string) of a key from its current case to uppercase.

Configuration

You can configure the uppercase_string processor with the following options.

Usage

To get started, create the following pipeline.yaml file:

pipeline:
  source:
    file:
      path: "/full/path/to/logs_json.log"
      record_type: "event"
      format: "json"
  processor:
    - uppercase_string:
        with_keys:
          - "uppercaseField"
  sink:
    - stdout:

Next, create a log file named logs_json.log. After that, replace the path in the file source of your pipeline.yaml file with the correct file path. For more detailed information, see Configuring OpenSearch Data Prepper.

Before you run Data Prepper, the source appears in the following format:

{"uppercaseField": "hello"}

After you run Data Prepper, the source is converted to the following format:

{"uppercaseField": "HELLO"}