[**brk-client**](../README.md) *** [brk-client](../globals.md) / DateSeriesEndpoint # Interface: DateSeriesEndpoint\ Defined in: [Developer/brk/modules/brk-client/index.js:1370](https://github.com/bitcoinresearchkit/brk/blob/5bf06530ce84cd1829c2f934e5baded9c9125d45/modules/brk-client/index.js#L1370) ## Type Parameters ### T `T` ## Properties ### fetch > **fetch**: (`onUpdate?`) => `Promise`\<[`DateSeriesData`](../type-aliases/DateSeriesData.md)\<`T`\>\> Defined in: [Developer/brk/modules/brk-client/index.js:1376](https://github.com/bitcoinresearchkit/brk/blob/5bf06530ce84cd1829c2f934e5baded9c9125d45/modules/brk-client/index.js#L1376) Fetch all data #### Parameters ##### onUpdate? (`value`) => `void` #### Returns `Promise`\<[`DateSeriesData`](../type-aliases/DateSeriesData.md)\<`T`\>\> *** ### fetchCsv > **fetchCsv**: () => `Promise`\<`string`\> Defined in: [Developer/brk/modules/brk-client/index.js:1377](https://github.com/bitcoinresearchkit/brk/blob/5bf06530ce84cd1829c2f934e5baded9c9125d45/modules/brk-client/index.js#L1377) Fetch all data as CSV #### Returns `Promise`\<`string`\> *** ### first > **first**: (`n`) => [`DateRangeBuilder`](DateRangeBuilder.md)\<`T`\> Defined in: [Developer/brk/modules/brk-client/index.js:1373](https://github.com/bitcoinresearchkit/brk/blob/5bf06530ce84cd1829c2f934e5baded9c9125d45/modules/brk-client/index.js#L1373) Get first n items #### Parameters ##### n `number` #### Returns [`DateRangeBuilder`](DateRangeBuilder.md)\<`T`\> *** ### get > **get**: (`index`) => [`DateSingleItemBuilder`](DateSingleItemBuilder.md)\<`T`\> Defined in: [Developer/brk/modules/brk-client/index.js:1371](https://github.com/bitcoinresearchkit/brk/blob/5bf06530ce84cd1829c2f934e5baded9c9125d45/modules/brk-client/index.js#L1371) Get single item at index or Date #### Parameters ##### index `number` \| `Date` #### Returns [`DateSingleItemBuilder`](DateSingleItemBuilder.md)\<`T`\> *** ### last > **last**: (`n`) => [`DateRangeBuilder`](DateRangeBuilder.md)\<`T`\> Defined in: [Developer/brk/modules/brk-client/index.js:1374](https://github.com/bitcoinresearchkit/brk/blob/5bf06530ce84cd1829c2f934e5baded9c9125d45/modules/brk-client/index.js#L1374) Get last n items #### Parameters ##### n `number` #### Returns [`DateRangeBuilder`](DateRangeBuilder.md)\<`T`\> *** ### path > **path**: `string` Defined in: [Developer/brk/modules/brk-client/index.js:1379](https://github.com/bitcoinresearchkit/brk/blob/5bf06530ce84cd1829c2f934e5baded9c9125d45/modules/brk-client/index.js#L1379) The endpoint path *** ### skip > **skip**: (`n`) => [`DateSkippedBuilder`](DateSkippedBuilder.md)\<`T`\> Defined in: [Developer/brk/modules/brk-client/index.js:1375](https://github.com/bitcoinresearchkit/brk/blob/5bf06530ce84cd1829c2f934e5baded9c9125d45/modules/brk-client/index.js#L1375) Skip first n items, chain with take() #### Parameters ##### n `number` #### Returns [`DateSkippedBuilder`](DateSkippedBuilder.md)\<`T`\> *** ### slice > **slice**: (`start?`, `end?`) => [`DateRangeBuilder`](DateRangeBuilder.md)\<`T`\> Defined in: [Developer/brk/modules/brk-client/index.js:1372](https://github.com/bitcoinresearchkit/brk/blob/5bf06530ce84cd1829c2f934e5baded9c9125d45/modules/brk-client/index.js#L1372) Slice by index or Date #### Parameters ##### start? `number` \| `Date` ##### end? `number` \| `Date` #### Returns [`DateRangeBuilder`](DateRangeBuilder.md)\<`T`\> *** ### then > **then**: [`DateThenable`](../type-aliases/DateThenable.md)\<`T`\> Defined in: [Developer/brk/modules/brk-client/index.js:1378](https://github.com/bitcoinresearchkit/brk/blob/5bf06530ce84cd1829c2f934e5baded9c9125d45/modules/brk-client/index.js#L1378) Thenable (await endpoint)