[**brk-client**](../README.md) *** [brk-client](../globals.md) / DateSingleItemBuilder # Interface: DateSingleItemBuilder\ Defined in: [Developer/brk/modules/brk-client/index.js:1390](https://github.com/bitcoinresearchkit/brk/blob/6cd45c1f1f755807c6e6ab6ba61b54aff4b07f3b/modules/brk-client/index.js#L1390) ## Type Parameters ### T `T` ## Properties ### fetch > **fetch**: (`onUpdate?`) => `Promise`\<[`DateSeriesData`](../type-aliases/DateSeriesData.md)\<`T`\>\> Defined in: [Developer/brk/modules/brk-client/index.js:1391](https://github.com/bitcoinresearchkit/brk/blob/6cd45c1f1f755807c6e6ab6ba61b54aff4b07f3b/modules/brk-client/index.js#L1391) 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:1392](https://github.com/bitcoinresearchkit/brk/blob/6cd45c1f1f755807c6e6ab6ba61b54aff4b07f3b/modules/brk-client/index.js#L1392) Fetch as CSV #### Returns `Promise`\<`string`\> *** ### then > **then**: [`DateThenable`](../type-aliases/DateThenable.md)\<`T`\> Defined in: [Developer/brk/modules/brk-client/index.js:1393](https://github.com/bitcoinresearchkit/brk/blob/6cd45c1f1f755807c6e6ab6ba61b54aff4b07f3b/modules/brk-client/index.js#L1393) Thenable