docs-v2/content/v2.0/reference/flux/stdlib/json/encode.md

title	description	aliases	menu	weight
json.encode() function	The `json.encode()` function converts a value into JSON bytes.	/v2.0/reference/flux/functions/json/encode/	v2_0_ref name parent json.encode JSON	202

The json.encode() function converts a value into JSON bytes.

Function type: Type conversion

import "json"

json.encode(v: "some value")

This function encodes Flux types as follows:

• time values in RFC3339 format
• duration values in number of milliseconds since the epoch
• regexp values as their string representation
• bytes values as base64-encoded strings
• function values are not encoded and produce an error

Parameters

v

The value to convert.

Data type: Boolean | Duration | Float | Integer | String | Time | UInteger

Examples

Encode all values in a column in JSON bytes

import "json"

from(bucket: "example-bucket")
  |> range(start: -1h)
  |> map(fn: (r) => ({
      r with _value: json.encode(v: r._value)
  }))