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Supplier Management System API Authentication (Ruby)
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# Sample values | |
url = "/api/suppliers" | |
params = {"trading_name" => "Joe's Widgets", "registration_number" => 123} | |
api_key = '123' # Your private API key | |
required_folds = 3 # The number of times to re-encrypt the data | |
# The calculation itself | |
flattened_parameters = params.sort.map { |pair| "#{ pair[0] }=#{ pair[1] }" } | |
# ["registration_number=123", "trading_name=Joe's Widgets"] | |
flattened_parameters = flattened_parameters.join | |
# "registration_number=123trading_name=Joe's Widgets" | |
data = "#{ url }#{ flattened_parameters }" | |
# "/api/suppliersregistration_number=123trading_name=Joe's Widgets" | |
required_folds.times do | |
data = OpenSSL::HMAC.hexdigest(OpenSSL::Digest::Digest.new('sha256'), api_key, data) | |
# 1. e3c9a484dc5f5b56bc1d185e5b8fc2f6693567478d51b64c510dd4218b97e1ba | |
# 2. 8512aadbbac06b695dc542f944df1b04b122e666919553888ad7509636093f62 | |
# 3. af37df231d49a3ecfdae8d6f37422b3d6f936677b7086a013884b83b947c43cc | |
end | |
Base64.strict_encode64(data) | |
# YWYzN2RmMjMxZDQ5YTNlY2ZkYWU4ZDZmMzc0MjJiM2Q2ZjkzNjY3N2I3MDg2YTAxMzg4NGI4M2I5NDdjNDNjYw== |
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