[**brk-client**](../README.md) *** [brk-client](../globals.md) / SingleItemBuilder # Interface: SingleItemBuilder\ Defined in: [Developer/brk/modules/brk-client/index.js:1633](https://github.com/bitcoinresearchkit/brk/blob/6e8be1af2225890fe02f0a4598e3a4fa8251f535/modules/brk-client/index.js#L1633) ## Type Parameters ### T `T` ## Properties ### fetch > **fetch**: (`onValue?`) => `Promise`\<[`SeriesData`](../type-aliases/SeriesData.md)\<`T`\>\> Defined in: [Developer/brk/modules/brk-client/index.js:1634](https://github.com/bitcoinresearchkit/brk/blob/6e8be1af2225890fe02f0a4598e3a4fa8251f535/modules/brk-client/index.js#L1634) Fetch the item #### Parameters ##### onValue? (`value`) => `void` #### Returns `Promise`\<[`SeriesData`](../type-aliases/SeriesData.md)\<`T`\>\> *** ### fetchCsv > **fetchCsv**: () => `Promise`\<`string`\> Defined in: [Developer/brk/modules/brk-client/index.js:1635](https://github.com/bitcoinresearchkit/brk/blob/6e8be1af2225890fe02f0a4598e3a4fa8251f535/modules/brk-client/index.js#L1635) Fetch as CSV #### Returns `Promise`\<`string`\> *** ### then > **then**: [`Thenable`](../type-aliases/Thenable.md)\<`T`\> Defined in: [Developer/brk/modules/brk-client/index.js:1636](https://github.com/bitcoinresearchkit/brk/blob/6e8be1af2225890fe02f0a4598e3a4fa8251f535/modules/brk-client/index.js#L1636) Thenable