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DocumentationGrafana AlloyReferenceStandard libraryencoding
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encoding

The encoding namespace contains encoding and decoding functions.

encoding.from_base64

The encoding.from_base64 function decodes a RFC4648-compliant Base64-encoded string into the original string.

encoding.from_base64 fails if the provided string argument contains invalid Base64 data.

Examples

> encoding.from_base64("dGFuZ2VyaW5l")
tangerine

encoding.from_json

The encoding.from_json function decodes a string representing JSON into an Alloy value. encoding.from_json fails if the string argument provided can’t be parsed as JSON.

A common use case of encoding.from_json is to decode the output of a local.file component to an Alloy value.

Note

Remember to escape double quotes when passing JSON string literals to encoding.from_json.

For example, the JSON value {"key": "value"} is properly represented by the string "{\"key\": \"value\"}".

Examples

> encoding.from_json("15")
15

> encoding.from_json("[1, 2, 3]")
[1, 2, 3]

> encoding.from_json("null")
null

> encoding.from_json("{\"key\": \"value\"}")
{
  key = "value",
}

> encoding.from_json(local.file.some_file.content)
"Hello, world!"

encoding.from_yaml

The encoding.from_yaml function decodes a string representing YAML into an Alloy value. encoding.from_yaml fails if the string argument provided cannot be parsed as YAML.

A common use case of encoding.from_yaml is to decode the output of a local.file component to an Alloy value.

Note

Remember to escape double quotes when passing YAML string literals to encoding.from_yaml.

For example, the YAML value key: "value" is properly represented by the string "key: \"value\"".

Examples

> encoding.from_yaml("15")
15
> encoding.from_yaml("[1, 2, 3]")
[1, 2, 3]
> encoding.from_yaml("null")
null
> encoding.from_yaml("key: value")
{
  key = "value",
}
> encoding.from_yaml(local.file.some_file.content)
"Hello, world!"