Work with bytes types

A bytes type represents a sequence of byte values.

Type name: bytes

• Bytes syntax
• Convert a column to bytes
• Include the string representation of bytes in a table

Bytes syntax

Flux does not provide a bytes literal syntax. Use the bytes() function to convert a string into bytes.

bytes(v: "hello")
// Returns [104 101 108 108 111]

Convert strings to bytes

Use bytes() or hex.bytes() to convert strings to bytes.

• bytes(): Convert a string to bytes
• hex.bytes(): Decode hexadecimal value and convert it to bytes.

Convert a hexadecimal string to bytes

import "contrib/bonitoo-io/hex"

hex.bytes(v: "FF5733")
// Returns [255 87 51] (bytes)

Include the string representation of bytes in a table

Use display() to return the string representation of bytes and include it as a column value. display() represents bytes types as a string of lowercase hexadecimal characters prefixed with 0x.

import "sampledata"

sampledata.string()
    |> map(fn: (r) => ({r with _value: display(v: bytes(v: r._value))}))

Output