uPay in Golang

Payment Gateway Microservice in Golang

PSD2 SCA

EU SCA law will be on duty after 14th September 2019

Updates

• 13/08/2019 - For UK cards the SCA implementation deadline is March 2021

Feature

• SCA ready with Stripe Payment Intents
  • Off-session intents
  • Separation of auth and capture
    • New intent
    • Confirm intent
    • Capture/Delete intent
• No database infrastructure needed
• Stripe API keys configuration per currency

Installation

cp config.json.dist config.json
vi config.json # Add your config values

# API doc
swag init

# Enable pre-commit hooks (Git 2.54+ config-based hooks; no copy into .git/hooks)
git config --local include.path ../.github/hooks/gitconfig
# Verify registration (list only; does not execute hooks):
git hook list --show-scope pre-commit
# Run the configured pre-commit commands to confirm they work:
git hook run pre-commit

go run main.go -config=config.json

How to use

Example of a checkout web page

1. User to insert card information with Stripe Elements
2. Create an intent with JS SDK
3. Confirm the intent
4. Does the intent requires 3D Secure (intent status and next_action param)
   1. No, Point 5)
   2. Yes, Stripe Elements will open the a 3D Secure popup
5. Do you after checkout domain logic
6. Any error during your checkout process?
   1. Yes, cancel the intent
   2. No, capture the intent

Stripe client

All Stripe calls go through a per-currency client built by appconfig.GetStripeClientByCurrency (the stripe-go stripe.Client API), so the secret key is bound to the client instead of shared global state. The deprecated global key (stripe.Key) and the legacy resource packages (stripe-go/v82/paymentintent, stripe-go/v82/customer) must not be used: the pre-commit hook and CI reject them.

Tests

go test ./... -failfast -tags=unit
go test ./... -failfast -tags=stripe -config=ABS_PATH/config.json

APIs

• Swagger /swagger/index.html