It fails when I send index 0

[vjmartinez89]

When I send 0 as the index parameter, it returns an array rather than a string. This is because the index parameter is null in the "split" method.

module.exports = ({ params }) => {
  const [value, delimiter, index] = params;
  return {
    value:
      typeof index === 'number'
        ? value.split(delimiter)[index]
        : value.split(delimiter),
  };
};

The configuration I'm using is:

provider:
  ...
  environment:
    ...
    VAR_ONE: ${split("var_one_value/var_two_value", '/', 1)}
    VAR_TWO:   ${split("var_one_value/var_two_value", '/', 0)}

When I access those two variables I receive:

VAR_ONE = var_one_value
VAR_TWO = var_one_value,var_two_value

Environment:

Plugin version: "serverless-plugin-utils": "^0.2.0",
Framework version: "serverless": "^3.27.0",

[vjmartinez89]

After debugging for a couple of minutes, I noticed that if you send 0 as a number, the split function receives null, but if you send it as a string ('0'), it is received. Something like this could work:

module.exports = ({ params }) => {
  const [value, delimiter, index] = params;
  return {
    value:
      typeof index === 'number' || !isNaN(parseInt(index || ''))
        ? value.split(delimiter)[parseInt(index)]
        : value.split(delimiter),
  };
};

[robertocerdasilva]

@vjmartinez89 hello!

same problem.
How did you solve it?

[robertocerdasilva]

I applied the following change and it worked for me:

module.exports = ({ params }) => {
    const [value, delimiter, index] = params;

    return {
        value: value.split(delimiter)[index ?? 0]
    };
};

[vjmartinez89]

@robertocerdasilva
What I finally did was stop using it. I solved my problem using a custom javascript file to resolve variables, as explained here.

@vjmartinez89 hello!

same problem. How did you solve it?

[icarus-sullivan]

@robertocerdasilva Sorry for the super late response. I can definitely update the lib to support that.

[mfortin]

Same issue..

[robertocerdasilva]

@mfortin modify the file node_modules/serverless-plugin-utils/src/utils/split.js

replace the code with this

module.exports = ({ params }) => {
    const [value, delimiter, index] = params;

    return {
        value: value.split(delimiter)[index ?? 0]
    };
};

It works well for me

[pataraco]

this is affecting me now too
any plans on fixing anytime soon?

[pataraco]

@mfortin modify the file node_modules/serverless-plugin-utils/src/utils/split.js

replace the code with this

module.exports = ({ params }) => {
    const [value, delimiter, index] = params;

    return {
        value: value.split(delimiter)[index ?? 0]
    };
};

It works well for me

what if someone wants the list of values by not supplying an index?
in your suggestion, it would only return the first value

maybe this?

module.exports = ({ params }) => {
  const [value, delimiter, index] = params;
  const splitArray = value.split(delimiter);

  return {
    value: index !== undefined ? splitArray[index] : splitArray,
  };
};

which worked for me :-)