# TxContext · FT4 TypeScript client · Chromia Docs (concept)

> TxContext: { [counterId: string]: number | null } Type Declaration [counterId: string]: number | null

Source: https://docs.chromia.com/pages/ft4-ts-client/types/utils.TxContext/

Type Alias

# TxContext

```signature
TxContext: { [counterId: string]: number | null }
```

#### Type Declaration

* ##### [counterId: string]: number | null

[View this page on docs.chromia.com](https://docs.chromia.com/pages/ft4-ts-client/types/utils.TxContext.html)Generated API reference, mirrored from the live docs