flow

flow #

Description #

The flow filter is used to redirect to or execute one or a series of other flows.

Configuration Example #

A simple example is as follows:

flow:
  - name: flow
    filter:
      - flow:
          flows:
          - request_logging

Context mapped flow:

flow:
  - name: dns-flow
    filter:
      - flow:
          ignore_undefined_flow: true
          context_flow:
            context: _ctx.request.host
            context_parse_pattern: (?P<uuid>^[0-9a-z_\-]+)\.
            flow_id_template: flow_$[[uuid]]
      - set_response:
          status: 503
          content_type: application/json
          body: '{"message":"invalid HOST"}'

More information about context, please refer to Context .

Parameter Description #

Name	Type	Description
flow	string	Flow ID, the definition of how requests will be executed
flows	array	Flow ID, in the array format. You can specify multiple flows, which are executed in sequence
ignore_undefined_flow	bool	Ignore the undefined flow
context_flow.context	string	The context to use for mapping flow_id
context_flow.context_parse_pattern	string	The regexp pattern used to extract named variables from context value
context_flow.flow_id_template	string	The string template used to rendering flow_id
context_flow.continue	string	Will continue next filter after executed the context mapped flow, default `false`