Reference variable in serverless config

Serverless Framework
1

Hi There,

I know that the framework supports variables in serverless.yml.

This is grate features, thank you very much.

But how to reference self variable from a list?
Here is example:

    events:
      - schedule:
          rate: cron(0 0 1 * ? *)
          input:
            dateFormat: "YYYY-MM-DD-hh-mm-ss"
            cronFormat: "0 0 1 * ? *"

As you can see I have a duplication (rate & input.cronFormat). I would like to avoid it and use something like:

cronFormat: ${../rate}

Is it possible?

Thank you in advance,
Mike

2

I’d think you can use the standard pattern for variables to accomplish this.

I tend to use this pattern - in my custom section I have something like:

custom:
  cronrate: ${opt:cronrate, self:custom.cronrate_default} # Set the custom variable
  cronrate_default: "0 0 1 * ? *" # Cron rate value

Then in your code you use the variable like:

events:
  - schedule:
      rate: cron(${self:custom.cronrate})
      input:
        dateFormat: "YYYY-MM-DD-hh-mm-ss"
        cronFormat: "${self:custom.cronrate}"
3

Hi @roboweaver

Thank you for your answer.
Maybe I didn’t describe my problem correctly.
In my case I have list of more than dozen events. End for every event I need different values for rate and crobFormat. Like:

 events:
      - schedule:
          rate: cron(0 0 1 * ? *)
          input:
            dateFormat: "YYYY-MM-DD-hh-mm-ss"
            cronFormat: "0 0 1 * ? *"
      - schedule:
          rate: cron(0 0 2 * ? *)
          input:
            dateFormat: "YYYY-MM-DD-hh-mm-ss"
            cronFormat: "0 0 2 * ? *"
      - schedule:
          rate: cron(0 0 3 * ? *)
          input:
            dateFormat: "YYYY-MM-DD-hh-mm-ss"
            cronFormat: "0 0 3 * ? *"
      ...

Thank you,
Mike