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Function: base64.decode
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Decodes given Base64-encoded string to bytes.
The carriage return (\r) and newline (\n) characters in the input
are ignored.
Arguments
Arguments
data
string
The input to be decoded.
padding
boolean
Specifies whether the input should be expected to be aligned to a multiple of 4 bytes, using a padding character (default: true).
Returns
The decoded bytes.
Raised exceptions
Exceptions
ValueErrorIf characters outside of the Base64 alphabet are encountered, or if padding == true and the input is not aligned to a multiple of 4 bytes.
Examples
For more information, see
Returning bytes .
# Decode Base64-encoded string to bytes, then decode bytes to object
- init :
assign :
- project : '${sys.get_env("GOOGLE_CLOUD_PROJECT_ID")}'
- subscription : SUBSCRIPTION_ID
- pullMessage : # pulls Pub/Sub message
call : googleapis.pubsub.v1.projects.subscriptions.pull
args :
subscription : '${"projects/" + project + "/subscriptions/" + subscription}'
body :
maxMessages : 1
result : m
- outputMessage :
return : '${json.decode(base64.decode(m.receivedMessages[0].message.data))}'
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Last updated 2025-08-29 UTC.
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[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Hard to understand","hardToUnderstand","thumb-down"],["Incorrect information or sample code","incorrectInformationOrSampleCode","thumb-down"],["Missing the information/samples I need","missingTheInformationSamplesINeed","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-29 UTC."],[],[],null,["# Function: base64.decode\n\nDecodes given Base64-encoded string to bytes.\n\nThe carriage return (`\\r`) and newline (`\\n`) characters in the input\nare ignored.\n\nArguments\n---------\n\nReturns\n-------\n\nThe decoded bytes.\n\nRaised exceptions\n-----------------\n\nExamples\n--------\n\nFor more information, see\n[Returning bytes](https://cloud.google.com/workflows/docs/reference/syntax/datatypes.md#bytes). \n\n```yaml\n# Decode Base64-encoded string to bytes, then decode bytes to object\n- init:\n assign:\n - project: '${sys.get_env(\"GOOGLE_CLOUD_PROJECT_ID\")}'\n - subscription: SUBSCRIPTION_ID\n- pullMessage: # pulls Pub/Sub message\n call: googleapis.pubsub.v1.projects.subscriptions.pull\n args:\n subscription: '${\"projects/\" + project + \"/subscriptions/\" + subscription}'\n body:\n maxMessages: 1\n result: m\n- outputMessage:\n return: '${json.decode(base64.decode(m.receivedMessages[0].message.data))}'\n```"]]
