Function isApiOutdated

packages/amis-core/src/utils/api.ts:854–910

(
  prevApi: Api | undefined,
  nextApi: Api | undefined,
  prevData: any,
  nextData: any
)

}

export function isApiOutdated(
  prevApi: Api | undefined,
  nextApi: Api | undefined,
  prevData: any,
  nextData: any
): nextApi is Api {
  if (!nextApi) {
    return false;
  }

  // 通常是编辑器里加了属性，一开始没值，后来有了
  if (prevApi === undefined) {
    return true;
  }

  nextApi = normalizeApi(nextApi);
  prevApi = (prevApi ? normalizeApi(prevApi) : prevApi) as ApiObject;

  if (nextApi.autoRefresh === false) {
    return false;
  }

  // api 本身有变化
  if ((prevApi && prevApi.url !== nextApi.url) || !prevApi) {
    return !!(
      isValidApi(nextApi.url) &&
      (!nextApi.sendOn || evalExpression(nextApi.sendOn, nextData))
    );
  }

  const trackExpression = nextApi.trackExpression ?? nextApi.url;
  if (typeof trackExpression !== 'string' || !~trackExpression.indexOf('$')) {
    return false;
  }

  let isModified = false;

  if (nextApi.trackExpression || prevApi.trackExpression) {
    isModified =
      tokenize(prevApi.trackExpression || '', prevData) !==
      tokenize(nextApi.trackExpression || '', nextData);
  } else {
    prevApi = buildApi(prevApi as Api, prevData as object, {
      ignoreData: true
    });
    nextApi = buildApi(nextApi as Api, nextData as object, {
      ignoreData: true
    });
    isModified = prevApi.url !== nextApi.url;
  }

  return !!(
    isModified &&
    isValidApi(nextApi.url) &&
    (!nextApi.sendOn || evalExpression(nextApi.sendOn, nextData))
  );
}