match.yaml

doc: |
  An example of using 'match' in Javascript.
labels:
  - selftest
spec:
  phases:
    phase1:
      steps:
        - "$include<include/mock.yaml>"
        - sub:
            pattern: test
        - pub:
            topic: test
            payload: '{"want":"queso","when":"now"}'
        - recv:
            pattern: '{"want":"?x"}'
            timeout: '2s'
            guard: |
              // Silly to do this 'match' here when we could have done it
              // with the 'recv' pattern.  Just shows calling 'match'
              // from Javascript.
              print("msg", msg);
              var pat = {"when":"?w"}; // Our pattern
              var bs0 = {}; // Input bindings for 'match'.
              // msg.Payload is a raw string.
              var bss = match(pat, JSON.parse(msg.Payload), bs0);
              var w = bss[0]["?w"];
              return w == "now";