[**brk-client**](../README.md) *** [brk-client](../globals.md) / DateSingleItemBuilder # Interface: DateSingleItemBuilder\ Defined in: [Developer/brk/modules/brk-client/index.js:1451](https://github.com/bitcoinresearchkit/brk/blob/c76b149ef9f4e0092fec3c6aef562bc4dddd8122/modules/brk-client/index.js#L1451) ## Type Parameters ### T `T` ## Properties ### fetch > **fetch**: (`onUpdate?`) => `Promise`\<[`DateSeriesData`](../type-aliases/DateSeriesData.md)\<`T`\>\> Defined in: [Developer/brk/modules/brk-client/index.js:1452](https://github.com/bitcoinresearchkit/brk/blob/c76b149ef9f4e0092fec3c6aef562bc4dddd8122/modules/brk-client/index.js#L1452) Fetch the item #### 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:1453](https://github.com/bitcoinresearchkit/brk/blob/c76b149ef9f4e0092fec3c6aef562bc4dddd8122/modules/brk-client/index.js#L1453) Fetch as CSV #### Returns `Promise`\<`string`\> *** ### then > **then**: [`DateThenable`](../type-aliases/DateThenable.md)\<`T`\> Defined in: [Developer/brk/modules/brk-client/index.js:1454](https://github.com/bitcoinresearchkit/brk/blob/c76b149ef9f4e0092fec3c6aef562bc4dddd8122/modules/brk-client/index.js#L1454) Thenable