---
alias: user-guide-automation-converter-bufferslice
description: "This documentation describes a buffer slice operation with start and count parameters"
---

# Buffer Slice

It is similar to the ArraySlice in which a start position input and a count is received and it returns a Buffer that contains the original object from the start position, until the start position plus the count input.

## Settings

| Name  | Data Type | Description                                                  |
| ----- | --------- | ------------------------------------------------------------ |
| start | `Integer` | First position to include (0 means the first element of the array) |
| count | `Integer` | Number of positions to slice                                 |

Table 1: Settings

![image122][image122]

[image122]: ./images/image122.png

## Examples

Using an 8-byte buffer with bytes `00 00 00 02 00 00 00 01`:

| `start` | `count`     | Output bytes  | Notes                                          |
| ------- | ----------- | ------------- | ---------------------------------------------- |
| `4`     | *(not set)* | `00 00 00 01` | Read as a 32-bit big-endian integer, this is `1`. |

Table 2: Examples

### Invalid Input

This converter fails in any of the cases below. For what happens to the rest of the chain when a converter fails (the error is logged, reported for monitoring, and the next task does not run), see [[user-guide-automation-converters-index]].

| `start` | `count` | Result                                                                 |
| ------- | ------- | ---------------------------------------------------------------------- |
| `10`    | N/A     | Fails with `Invalid start position '10'. Original value length is '8'`. |
| `4`     | `5`     | Fails with `Start position + count (4 + 5) exceeds value length.`      |

Table 3: Invalid Input