@gravity-ui/data-source/build/esm/core/utils/withCancellation.js

A wrapper around data fetching

import _typeof from "@babel/runtime/helpers/typeof";
export var isCancellable = function isCancellable(value) {
  return _typeof(value) === 'object' && value !== null && 'cancel' in value && typeof value.cancel === 'function';
};
export var isAbortable = function isAbortable(value) {
  return _typeof(value) === 'object' && value !== null && 'signal' in value && _typeof(value.signal) === 'object' && value.signal !== null && 'addEventListener' in value.signal && typeof value.signal.addEventListener === 'function';
};
export var withCancellation = function withCancellation(fetch) {
  return function (context, fetchContext, request) {
    var value = fetch(context, fetchContext, request);
    if (isAbortable(fetchContext) && isCancellable(value)) {
      fetchContext.signal.addEventListener('abort', function () {
        value.cancel();
      });
    }
    return value;
  };
};
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