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# File 'lib/kamba_checkout/api.rb', line 3
def self.generate_checkout(environment, checkout)
time = Time.now.httpdate
secret_key = KambaCheckout.secret_key
json_string = checkout.to_json
canonical_string = "POST,application/json,#{generate_md5(json_string)},#{'/v1/checkouts'},#{time}"
digest = OpenSSL::Digest.new('sha1')
hmac_signature = OpenSSL::HMAC.digest(digest, secret_key, canonical_string)
signature = Base64.strict_encode64(hmac_signature)
KambaCheckout::Response.new(environment, checkout, signature, time)
end
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