Created
April 2, 2017 00:43
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| module Mettlr | |
| class Connection | |
| def self.connection | |
| @connection = Faraday.new('http://api.mettl.com/v1') do |c| | |
| c.options.params_encoder = Faraday::FlatParamsEncoder | |
| c.request :url_encoded | |
| # c.request :json | |
| c.response :mashify | |
| c.response :json, content_type: /\bjson$/ | |
| c.response :logger | |
| c.use :instrumentation | |
| c.adapter :net_http | |
| end | |
| end | |
| def self.get(path) | |
| connection.get do |req| | |
| req.path = path | |
| req.params['ak'] = Mettlr::METTL_PUBLIC_KEY | |
| req.params['ts'] = Time.now.to_i.to_s | |
| req.params = Hash[req.params.sort_by {|k,v| k.downcase}] | |
| req.params['asgn'] = Mettlr::Signature.new(req).signature | |
| end | |
| end | |
| def self.post(path, options) | |
| connection.post do |req| | |
| req.path = path | |
| req.params['ak'] = Mettlr::METTL_PUBLIC_KEY | |
| req.params['ts'] = Time.now.to_i.to_s | |
| options.each do |k,v| | |
| if v.is_a?(Hash) | |
| req.params[k] = v.to_json | |
| else | |
| req.params[k] = v | |
| end | |
| end | |
| req.params = Hash[req.params.sort_by {|k,v| k.downcase}] | |
| req.params['asgn'] = Mettlr::Signature.new(req).signature | |
| end | |
| end | |
| end | |
| end |
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| module Mettlr | |
| class Signature | |
| def initialize(request) | |
| @request = request | |
| end | |
| def concat_string | |
| @request.method.to_s.upcase + | |
| "http://api.mettl.com" + | |
| @request.path + | |
| param_values | |
| end | |
| def param_values | |
| "\n" + @request.params.values.join("\n") | |
| end | |
| def signature | |
| hmac = OpenSSL::HMAC.digest('sha1', Mettlr::METTL_PRIVATE_KEY, concat_string) | |
| Faraday::Utils.escape(Base64.encode64(hmac).chomp) | |
| end | |
| end | |
| end |
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