Hacktoberfest 2026: the issues maintainers tagged for October, open and beginner-friendly. Browse Hacktoberfest issues

feat: Automatic Vended Credential Refresh

Open
#3,506 0 comments 1 reaction 0 assignees View on GitHub

Nobody has claimed this yet.

Assessment

Difficulty
5/5
Estimated time
Over a week
Newbie friendliness
20/100
Issue type
Feature
Clarity
Needs clarification
Activity status
Stale
Tech stack
python

Research direction

Start by reviewing PR 3507, which contains the VendedCredential implementation and is the dependency for the remaining work. Then inspect the planned PyArrowFileIO and FsspecFileIO refresh support; the feature is complete when both integrations refresh credentials obtained from the REST catalog before expiry.

Written by the indexing model from the issue text.

Description

Feature Request / Improvement

Today, long-running writes to PyIceberg risk failing when credentials expire mid-transaction. The Java implementation addressed this by adding a vended-credential refresh mechanism that calls a REST catalog endpoint to obtain new credentials whenever the current ones are within five minutes of expiring.

I propose a similar approach for PyIceberg, delivered in three separate PRs:

  1. VendedCredential class implementation (largest diff) -> PR ready for review
  2. Credential refresh support in PyArrowFileIO -> PR pending review and merge of 1
  3. Credential refresh support in FsspecFileIO -> PR pending review and merge of 1

PRs 2 and 3 depend on PR 1, which provides the core vended-credential implementation.

Dominant language
Python
Stars
1.1k
Forks
589
Avg merge
2d 2h
Merged PRs (30d)
70

Contributor guide

No contributing guide indexed for this repository

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

More from apache/iceberg-python

All issues in apache/iceberg-python

Similar issues

More Python issues

Get new issues in your inbox

A short digest of beginner-friendly GitHub issues.