[**brk-client**](../README.md) *** [brk-client](../globals.md) / DateSingleItemBuilder # Interface: DateSingleItemBuilder\ Defined in: [Developer/brk/modules/brk-client/index.js:1211](https://github.com/bitcoinresearchkit/brk/blob/19d4a193ffb7d8bbcaf9d0ccaccf8e90edff9e28/modules/brk-client/index.js#L1211) ## Type Parameters ### T `T` ## Properties ### fetch > **fetch**: (`onUpdate?`) => `Promise`\<[`DateSeriesData`](../type-aliases/DateSeriesData.md)\<`T`\>\> Defined in: [Developer/brk/modules/brk-client/index.js:1212](https://github.com/bitcoinresearchkit/brk/blob/19d4a193ffb7d8bbcaf9d0ccaccf8e90edff9e28/modules/brk-client/index.js#L1212) 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:1213](https://github.com/bitcoinresearchkit/brk/blob/19d4a193ffb7d8bbcaf9d0ccaccf8e90edff9e28/modules/brk-client/index.js#L1213) Fetch as CSV #### Returns `Promise`\<`string`\> *** ### then > **then**: [`DateThenable`](../type-aliases/DateThenable.md)\<`T`\> Defined in: [Developer/brk/modules/brk-client/index.js:1214](https://github.com/bitcoinresearchkit/brk/blob/19d4a193ffb7d8bbcaf9d0ccaccf8e90edff9e28/modules/brk-client/index.js#L1214) Thenable