Ozow integration

snippet.rb

# refer to https://ozow.com/integrations/ for more information

# Ordering with the params matters, see the link above for more information
ozow_params = {
  'SiteCode': 'SOME_SITE_CODE', # find this here https://dash.ozow.com/MerchantAdmin/Site
  'CountryCode': 'ZA', # only supports ZA currently
  'CurrencyCode': 'ZAR', # only supports ZAR currently
  'Amount': 1000.00, # this is R1000.00
  'TransactionReference': 'SOME_TEST', # your internal reference to match against
  'BankReference': "Nice Reference", # the reference that the customer will see on their bank statement
  "IsTest": true, # pretty self explanatory
}

# I used #tap because reasons, you're more than welcome to tweak this
ozow_params.tap do |params|
  super_secret_key = "SOME_SECRET_KEY" # you'll find this here: https://dash.ozow.com/MerchantAdmin/Merchant/Details (Private Key)
  string = params.values.join('').downcase + super_secret_key
  params[:HashCheck] = Digest::SHA512.hexdigest(string)
end

base_url = 'https://pay.ozow.com'
# response should be a redirect (302) to a url that looks something like this: :uuid/Secure
response = HTTP.post('https://pay.ozow.com', params: ozow_params)

# https://pay.ozow.com/:uuid/Secure
payment_url = base_url + response.headers['Location']

# you can either load payment_url into an iframe tag, or redirect to that page. Freedom of choice.