flow

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`flow`

A named sequence of steps (one workflow within the machine)

Children

Translations

es: flujo
fr: flux
en: flow
de: Fluss
ja: フロー
zh: 流程
ko: 흐름

Example — Loops, schedules and parallel work

Builds a daily digest: runs on a schedule, works through a list, does two things at once, repeats until done, starts another machine and waits for an answer.

machine daily_digest
  accepts
    urls as list of text, is required
  responds with
    summary as text
  implements
    runtime
      timeout: 5000
    lifecycle
      on_start: warm
    schedules
      daily: "07:00"
    run gather
    go to deliver
    flows
      flow gather
        for each url in input.urls
          accumulate pages from []
          compute fetch_one
            {page: url}
        together
          compute part_a
            {x: 1}
          compute part_b
            {y: 2}
        while steps.part_a.x < 3
          compute bump
            {x: steps.part_a.x + 1}
        until steps.bump.x > 2
          compute retry_bump
            {x: steps.bump.x + 1}
      flow deliver
        match input.urls
          when []
            {summary: "nothing to send"}
          otherwise
            {summary: "digest ready"}
        launch notifier
          target: mail_service
        wait for approval
          event: "digest.approved"
        publish "digest.sent"
    on failure
      compute recover
        {summary: "failed"}