Using Promise inside release.config.js

[dev-dsp]

Hi. I'm writing a configuration for the semantic-release tool using the release.config.js file, which should generate the configuration dynamically.

Now, I need to call several APIs during the loading process. I found that the best practice for calling APIs is to use fetch().then().

My code (simplified) is the following:

const config = {
  plugins: [
    // some plugins configurations here
  ]
}

if (/* some condition */) {
  fetch(
    // API1 URL and its params
  ).then((response) => response.json()).then((data) => {
    return fetch(
      // API2 URL and its params including `data.field`
    )
  }).then((response) => response.json()).then((data) => {
    return data.another_field
  }).then(function(value){
    if (/* condition using the `value` */) {
      // Prints correctly extracted `value` from the API2 call
      console.log("Detected value", value)
      config.plugins.push(/* Additional plugin */)
    }
  })
}

module.exports = config

The problem here is that in the end semantic-release doesn't load that additional plugin.
I don't have enough experience with modern NodeJS, so I'm struggling to understand, how to force it to await results from fetch.

I found that in recent Node versions it's possible to use top-level await, but simply adding await before fetch doesn't work for a reason that is unclear to me:

  await fetch(
  ^^^^^
SyntaxError: await is only valid in async functions and the top level bodies of modules

So, what is the best way to just perform a couple of synchronous API calls, or await results of all the fetches and thens before the module.exports?