# Flow Javascript SDK Typescript?

**URL:** <https://forum.flow.com/t/flow-javascript-sdk-typescript/959>\
**Category:** ⚙️ Flow SDKs\
**Created:** [February 17, 2021, 2:23pm UTC](https://forum.flow.com/t/flow-javascript-sdk-typescript/959 "2021-02-17T14:23:47Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![mirshko](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.flow.com/mirshko/32/277_2.png) [@mirshko](https://forum.flow.com/u/mirshko)\
**Post date:** [February 17, 2021, 2:23pm UTC](https://forum.flow.com/t/flow-javascript-sdk-typescript/959/1 "2021-02-17T14:23:47Z")

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I’m working on a Next.js Flow dApp, wanting to use Typescript for the codebase, it seems that theres not only no types for the JavaScript SDK, but also not enough documentation on all the functions that the `fcl` library exports.

Are there plans to migrate the SDK to typescript or at least add in full documentation on all functions?

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**Author:** ![qvvg](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.flow.com/qvvg/32/78_2.png) [@qvvg](https://forum.flow.com/u/qvvg)\
**Post date:** [February 17, 2021, 7:10pm UTC](https://forum.flow.com/t/flow-javascript-sdk-typescript/959/2 "2021-02-17T19:10:33Z")

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There are plans for both. But probably still a little ways away, post v1.0.0 release. We consider FCL and the JS-SDK to still be very much in beta and are changing and updating its internals frequently as we learn more about what it needs to be and what it needs to be able to do. Once it stabilizes, full documentation and typescript support both have a fair bit of priority.

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**Author:** ![mirshko](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.flow.com/mirshko/32/277_2.png) [@mirshko](https://forum.flow.com/u/mirshko)\
**Post date:** [February 18, 2021, 6:14pm UTC](https://forum.flow.com/t/flow-javascript-sdk-typescript/959/3 "2021-02-18T18:14:23Z")

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Okay awesome!

Thanks for the quick reply! Much appreciated

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**Author:** ![laguitte](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.flow.com/laguitte/32/600_2.png) [@laguitte](https://forum.flow.com/u/laguitte)\
**Post date:** [February 13, 2022, 12:59am UTC](https://forum.flow.com/t/flow-javascript-sdk-typescript/959/4 "2022-02-13T00:59:28Z")

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I have opened this PR [https://github.com/louisguitton/DefinitelyTyped/pull/1](https://github.com/louisguitton/DefinitelyTyped/pull/1) where I have added typings for most of `@onflow/fcl` 🚨

Before I open the real PR against the upstream repo, I’d love to get some reviews from the Flow dev community (especially TS devs or FCL devs)