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docs-v2/content/shared/influxdb3-cli/create/trigger.md

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The influxdb3 create trigger command creates a new trigger for the processing engine.

Usage

influxdb3 create trigger [OPTIONS] \
  --database <DATABASE_NAME> \
  --token <AUTH_TOKEN> \
  --plugin-filename <PLUGIN_FILENAME> \
  --trigger-spec <TRIGGER_SPECIFICATION> \
  <TRIGGER_NAME>

Arguments

  • TRIGGER_NAME: A name for the new trigger.

Options

Option Description
-H --host Host URL of the running {{< product-name >}} server (default is http://127.0.0.1:8181)
-d --database ({{< req >}}) Name of the database to operate on
--token ({{< req >}}) Authentication token
--plugin-filename ({{< req >}}) Name of the file, stored in the server's plugin-dir, that contains the Python plugin code to run
--trigger-spec Trigger specification: table:<TABLE_NAME>, all_tables, every:<DURATION>, cron:<EXPRESSION>, or request:<REQUEST_PATH>
--trigger-arguments Additional arguments for the trigger, in the format key=value, separated by commas (for example, arg1=val1,arg2=val2)
--disabled Create the trigger in disabled state
--error-behavior Error handling behavior: log, retry, or disable
--run-asynchronous Run the trigger asynchronously, allowing multiple triggers to run simultaneously (default is synchronous)
--tls-ca Path to a custom TLS certificate authority (for testing or self-signed certificates)
-h --help Print help information
--help-all Print detailed help information

If you want to use a plugin from the Plugin Library repo, use the URL path with gh: specified as the prefix. For example, to use the System Metrics plugin, the plugin filename is gh:examples/schedule/system_metrics/system_metrics.py.

Option environment variables

You can use the following environment variables to set command options:

Environment Variable Option
INFLUXDB3_HOST_URL --host
INFLUXDB3_DATABASE_NAME --database
INFLUXDB3_AUTH_TOKEN --token

Examples

The following examples show how to use the influxdb3 create trigger command to create triggers in different scenarios.

Replace the following placeholders with your values:

  • {{% code-placeholder-key %}}DATABASE_NAME{{% /code-placeholder-key %}}: Database name
  • {{% code-placeholder-key %}}AUTH_TOKEN{{% /code-placeholder-key %}}: Authentication token
  • {{% code-placeholder-key %}}PLUGIN_FILENAME{{% /code-placeholder-key %}}: Python plugin filename
  • {{% code-placeholder-key %}}TRIGGER_NAME{{% /code-placeholder-key %}}: Name of the trigger to create
  • {{% code-placeholder-key %}}TABLE_NAME{{% /code-placeholder-key %}}: Name of the table to trigger on

{{% code-placeholders "(DATABASE|TRIGGER)_NAME|AUTH_TOKEN|TABLE_NAME" %}}

Create a trigger for a specific table

Create a trigger that processes data from a specific table.

influxdb3 create trigger \
  --database DATABASE_NAME \
  --token AUTH_TOKEN \
  --plugin-filename PLUGIN_FILENAME \
  --trigger-spec table:TABLE_NAME \
  TRIGGER_NAME

PLUGIN_FILENAME must implement the data write plugin interface.

Create a trigger for all tables

Create a trigger that applies to all tables in the specified database.

influxdb3 create trigger \
  --database DATABASE_NAME \
  --token AUTH_TOKEN \
  --plugin-filename <PLUGIN_FILENAME> \
  --trigger-spec all_tables \
  TRIGGER_NAME

PLUGIN_FILENAME must implement the data write plugin interface.

This is useful when you want a trigger to apply to any table in the database, regardless of name.

Create a trigger with a schedule

Create a trigger that runs at a specific interval using a duration. Supported duration units: s (seconds), m (minutes), h (hours), d (days), w (weeks), M (months), y (years). Maximum interval is 1 year.

influxdb3 create trigger \
  --database DATABASE_NAME \
  --token AUTH_TOKEN \
  --plugin-filename <PLUGIN_FILENAME> \
  --trigger-spec every:5m \
  TRIGGER_NAME

Create a trigger that runs based on a cron schedule using extended 6-field cron format. The cron expression follows the format:

second minute hour day_of_month month day_of_week

Fields:

  • second: 0-59
  • minute: 0-59
  • hour: 0-23
  • day_of_month: 1-31
  • month: 1-12 or JAN-DEC
  • day_of_week: 0-7 (0 or 7 is Sunday) or SUN-SAT

Example: Run at 6:00 AM every weekday (Monday-Friday):

influxdb3 create trigger \
  --database DATABASE_NAME \
  --token AUTH_TOKEN \
  --plugin-filename <PLUGIN_FILENAME> \
  --trigger-spec "cron:0 0 6 * * 1-5" \
  TRIGGER_NAME

PLUGIN_FILENAME must implement the scheduled plugin interface.

Create a trigger for HTTP requests

Create a trigger that provides an API endpoint and processes HTTP requests.

influxdb3 create trigger \
  --database DATABASE_NAME \
  --token AUTH_TOKEN \
  --plugin-filename PLUGIN_FILENAME \
  --trigger-spec request:REQUEST_PATH \
  TRIGGER_NAME

PLUGIN_FILENAME must implement the HTTP request plugin interface.

Create a trigger with additional arguments

influxdb3 create trigger \
  --database DATABASE_NAME \
  --token AUTH_TOKEN \
  --plugin-filename <PLUGIN_FILENAME> \
  --trigger-spec table:TABLE_NAME \
  --trigger-arguments arg1=value1,arg2=value2 \
  TRIGGER_NAME

Create a disabled trigger

Create a trigger in a disabled state.

influxdb3 create trigger \
  --disabled \
  --database DATABASE_NAME \
  --token AUTH_TOKEN \
  --plugin-filename <PLUGIN_FILENAME> \
  --trigger-spec table:TABLE_NAME \
  TRIGGER_NAME

Creating a trigger in a disabled state prevents it from running immediately. You can enable it later when you're ready to activate it.

Create a trigger with error handling

Log the error to the service output and the system.processing_engine_logs table:

influxdb3 create trigger \
  --database DATABASE_NAME \
  --token AUTH_TOKEN \
  --plugin-filename <PLUGIN_FILENAME> \
  --trigger-spec table:TABLE_NAME \
  --error-behavior log \
  TRIGGER_NAME

Rerun the trigger if it fails:

influxdb3 create trigger \
  --database DATABASE_NAME \
  --token AUTH_TOKEN \
  --plugin-filename <PLUGIN_FILENAME> \
  --trigger-spec table:TABLE_NAME \
  --error-behavior retry \
  TRIGGER_NAME

Disable the trigger if it fails:

influxdb3 create trigger \
  --database DATABASE_NAME \
  --token AUTH_TOKEN \
  --plugin-filename <PLUGIN_FILENAME> \
  --trigger-spec table:TABLE_NAME \
  --error-behavior disable \
  TRIGGER_NAME

{{% /code-placeholders %}}