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Designing Elixir Systems with OTP

Reporting Successes and Errors

Let’s learn to write code to report successes and errors in the script we've written.

We'll cover the following...

Reporting partial success

First, let’s report partial success as we go until there’s an error. We’ll enter this at the end of pipeline_errors.exs after the module:

C++
# Add this code after the module in pipeline_error.exs
IO.puts "Report partial success:" 
Worker.stream_work
|> Enum.take(10)
|> IO.inspect

To see this in action, we’ll run this script through the following command:

Executable

C++
elixir pipeline_errors.exs

Output

Report partial success:
[
  {:error, %RuntimeError{message: "Oops!"}, 1},
  {:result,
...