失敗なんか気にせずとにかくPromise.all()でぜんぶやる - Qiita

const fetchEntryIds = (): Promise<Array<string>> => { return request.get('xxxxx/entries/new'); }; const fetchEntry = (entryId: string): Promise<Entry> => { return request.get(`xxxxx/entries/${entryId}`); }; const fetchTodaysEntries = async (): Promise<Array<Entry>> => { const entryIds: Array<string> = await fetchEntryIds(); return Promise.all<Entry>(entryIds.map<Promise<Entry>>((entryId: string) =