# Reader<TInput>.PeekByte

[Type overview](/orleans/docs/api/csharp/microsoft.orleans.serialization/orleans.serialization.buffers.reader-1/) | [Methods](/orleans/docs/api/csharp/microsoft.orleans.serialization/orleans.serialization.buffers.reader-1/methods/)

[Source](https://github.com/dotnet/orleans/blob/e4e752cedecc2976811db49802c7a999b1f1c704/src/Orleans.Serialization/Buffers/Reader.cs#L723-L744)

```csharp
public byte PeekByte()
```

Returns the next byte from the input without advancing the reader.

### Returns

The next byte in the input.