> ## Documentation Index
> Fetch the complete documentation index at: https://docs.qu.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# CodedquaisError

```ts theme={null}
type CodedquaisError<T>: T extends "UNKNOWN_ERROR" ? UnknownError : T extends "NOT_IMPLEMENTED" ? NotImplementedError : T extends "UNSUPPORTED_OPERATION" ? UnsupportedOperationError : T extends "NETWORK_ERROR" ? NetworkError : T extends "SERVER_ERROR" ? ServerError : T extends "TIMEOUT" ? TimeoutError : T extends "BAD_DATA" ? BadDataError : T extends "CANCELLED" ? CancelledError : T extends "BUFFER_OVERRUN" ? BufferOverrunError : T extends "NUMERIC_FAULT" ? NumericFaultError : ... extends ... ? ... : ...;
```

A conditional type that transforms the [**ErrorCode**](/sdk/content/type-aliases/ErrorCode) T into its quaisError type.

## Type parameters

| Type parameter |
| :------------- |
| `T`            |

## Source

[utils/errors.ts:596](https://github.com/dominant-strategies/quais.js/blob/c1c12d43f9d34c6baad2b0542bd6d0acd6fefcbf/src/utils/errors.ts#L596)