We’ve all walked the burning sands of the ‘Green Test, Broken Production’ mirage. Watching a sea of green is comforting, but it is a hollow victory. The true test comes when the code meets the deep desert of production and withers, leaving us to find that a mock ceased to reflect reality months ago…
  • TehPers@beehaw.orgEnglish
    1·
    10 days ago

    How does this library handle control flow? For example, how can I fetch results from the DB, then for each result, execute one of several different pipelines depending on properties of that entity?

    • Aijan@programming.devOP
      2·
      10 days ago

      You can handle complex branching using standard JavaScript. Since every pipeline is just a function returning data, you can use if/else or map to return different sub-pipelines and commands from within your logic functions. Here’s an example:

      const processUsersFlow = () => 
  effectPipe(
    fetchAllUsers,
    (users) => {
      const tasks = users.map(user => {
        if (user.isAdmin) return syncAdminPermissions(user); // Sub-pipeline
        if (user.isGuest) return cleanupGuestAccount(user);  // Sub-pipeline
        return notifyUser(user); // Simple Command
      });

      return Parallel(tasks); 
    }
  )();