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Filters

Select a subset of traffic using filters.

Speedscale provides the ability to filter traffic matching a pattern. Filters are used extensively by Speedscale during:

  • Traffic collection - to eliminate repetitive or sensitive information like heartbeats, monitoring requests or PII
  • Snapshot creation - to isolate a particular 3rd party service to mock or a test pattern
  • Assertions - to tailor which tests are run for specific traffic patterns
info

The simplest way to build a forwarder filter is to assemble it in Traffic Viewer. Editing the JSON is a lot more work so check out the instructions here

Storage​

Filters are stored in Speedscale cloud so they can be reused. Manipulate them directly using speedctl commands like get, put and delete. To configure the Forwarder to use a filter rule insert the filter's ID in the Operator or Forwarder's SPEEDSCALE_FILTER_RULE environment variable.