WASM Transform

The Vector wasm transform programs logs

Configuration

• Common
• Advanced

• vector.toml
• vector.yaml
• vector.json

[transforms.my_transform_id]
  type = "wasm" # required
  inputs = ["my-source-or-transform-id"] # required
  artifact_cache = "/etc/vector/artifacts" # required
  module = "./modules/example.wasm" # required

• commonrequiredstring

  artifact_cache

  The directory where Vector should store the artifact it builds of this WASM module. Typically, all WASM modules share this.

  • View examples
• optionaluint

  heap_max_size

  The maximum size of the heap of this module, in bytes. (This includes the module itself, default is 10 MB.)

  • Default: 10485760 (bytes)
• commonrequiredstring

  module

  The file path of the .wasm or .wat module.

  • View examples

Output

Telemetry

This component provides the following metrics that can be retrieved through the internal_metrics source. See the metrics section in the monitoring page for more info.

• counter

  processed_events_total

  The total number of events processed by this component. This metric includes the following tags:

  • component_kind - The Vector component kind.

  • component_name - The Vector component ID.

  • component_type - The Vector component type.

  • file - The file that produced the error

  • instance - The Vector instance identified by host and port.

  • job - The name of the job producing Vector metrics.

• counter

  processed_bytes_total

  The total number of bytes processed by the component. This metric includes the following tags:

  • component_kind - The Vector component kind.

  • component_name - The Vector component ID.

  • component_type - The Vector component type.

  • instance - The Vector instance identified by host and port.

  • job - The name of the job producing Vector metrics.

How It Works