`base64_encode`

Encode a string or file contents to base64.

Parameters

inputstringone of input, source_key, or file: String to encode; supports ${ctx.key} interpolation.
source_keystringsee above: Context key containing the string to encode.
filestringsee above: File path to read and encode.
output_keystringdefault "base64_encoded": Context key for the encoded output.
url_safebooldefault false: Use URL-safe base64 alphabet.

Context Output

<output_key> (default base64_encoded) — the base64 encoded string.

Example

local flow = Flow.new("encode_demo")

flow:step("encode", nodes.base64_encode({
    input = "Hello, World!",
    output_key = "encoded"
}))

flow:step("log", nodes.log({
    message = "Encoded: ${ctx.encoded}"
})):depends_on("encode")

return flow