Function resourceFactory

Allows wrapper functions to provide a [[resource]] for use in templates.

Only library authors may care about this, but helper function is needed to "register" the wrapper function with a helper manager that specifically handles invoking both the resource wrapper function as well as the underlying resource.

App-devs / consumers may not ever need to know this utility function exists

Example using strict mode + <template> syntax and a template-only component:

import { resource, resourceFactory } from 'ember-resources';

const RemoteData = resourceFactory((url) => {
  return resource(({ on }) => {
    let state = new TrackedObject({});
    let controller = new AbortController();

    on.cleanup(() => controller.abort());

    fetch(url, { signal: controller.signal })
      .then(response => response.json())
      .then(data => {
        state.value = data;
      })
      .catch(error => {
        state.error = error;
      });

    return state;
  })
});

<template>
  {{#let (RemoteData "http://....") as |state|}}
    {{#if state.value}}
      ...
    {{else if state.error}}
      {{state.error}}
    {{/if}}
  {{/let}}
</template>

Alternatively, resourceFactory can wrap the wrapper function.

const RemoteData = resourceFactory((url) => {
  return resource(({ on }) => {
    ...
  });
})