Update UPS OAuth 2.0 API (PHP 7.1 – Remote, Today)

I’m looking for someone who can jump in today and move my current UPS integration from OAuth 1.0 over to OAuth 2.0. The codebase is pure PHP 7.1—no frameworks—so you’ll need to be comfortable working in a custom environment and mindful of backward-compatibility constraints. You will have AnyDesk access to the server, along with the UPS documentation and my existing code samples. All logic for the Rating endpoint is already in place; once the new authentication flow is wired in, I’ll need you to verify that this endpoint continues to respond correctly and consistently. The scope is intentionally tight: • Replace old UPS API with UPS-compliant OAuth 2.0 token retrieval and refresh logic • Update request headers so the Rating endpoint authenticates successfully • Run live tests and show that rate quotes are returned without errors • Supply a concise diff or patched file set plus a brief “how it works” note I estimate two to three hours for someone who has done similar UPS or OAuth work. The budget is a fixed $90, payable on successful same-day delivery. If you can start immediately, confirm your availability and outline any directly relevant UPS or OAuth 2.0 experience when you reply.

Project ID: 40423494