Add Deeplink to Venmo

[d-jaquay]

Add function for deep links to Venmo app to automate requests.

Common Venmo iOS Deep Link Structures
Open Profile: venmo://users/{username} or https://venmo.com/{username}.

Initiate Payment/Request: venmo://paycharge?txn=pay&recipients={username}&amount={amount}&note={note}.

Open App/Scanner: venmo://scan

[jglopez]

Design note for future implementation:

When adding Venmo deep link support, consider building a generic “payment provider” abstraction rather than a Venmo-only utility. This keeps the codebase portable if we later want to support other services (Cash App, PayPal, etc.) or if provider link formats change.

Suggested shape (pseudocode):

• Each provider defines:
  • id, displayName
  • buildIntent({ type: pay|request, recipient, amount, note }) → returns preferred action (app deep link, https fallback link, or “handoff” instructions)
  • Capability flags (e.g. supportsDeepLink, supportsCopyHandoff)
  • Provider constraints/quirks (note length limits, encoding rules, amount formatting)
• Centralize URL encoding + validation so providers don’t each re-implement escaping/formatting.
• Make fallbacks first-class: deep links can fail in Safari/PWA contexts, so always have a web fallback and/or a copy-to-clipboard handoff.

(As a quick example: some methods like Apple Cash don’t have a public parameterized deep link today, so a “copy handoff” flow should fit the same abstraction.)

Benefits:

• Adding/removing providers becomes mostly config + one module
• One place to maintain encoding/formatting rules and fallbacks
• Avoids hard-coding Venmo assumptions into the settle-up flow
• Keeps the UX flexible across devices (Safari/PWA/app-installed)