api_gears Gem

Installation

Add this line to your application's Gemfile:

gem 'api_gears'

And then execute:

$ bundle

Or install it yourself as:

$ gem install api_gears

Basic Usage Example

The following example implements the api for the cryptocurrency block explorer located at View Site

class BlockcypherApi < ApiGears
  def initialize(**options)
    if(options[:params].nil?)
      options[:params] = {}
    end
    if(options[:currency].nil?)
      options[:currency] = "btc"
    end
    if(options[:chain_id].nil?)
      options[:chain_id] = "main"
    end
    options[:content_type] = "json"
    url = "https://api.blockcypher.com/v1/#{options[:currency]}/#{options[:chain_id]}"
    super(url,options)
    endpoint "address_info", path:"/addrs/{address}"
    endpoint "address_balance", path:"/addrs/{address}/balance"
    endpoint "transaction", path:"/txs/{transaction_id}"
    endpoint "generate_multisig_address", path:"/addrs",query_method: :post, query_params:[:pubkeys], set_query_params:{script_type:"multisig-2-of-3"}
  end
end

Example API query:

blockcypher_api = BlockcypherApi.new
blockcypher_api.address_info(address:"1MNGRXLueAKdeUKzBEJPqPPEFkohoaVn1k")

returns:

{"address"=>"1MNGRXLueAKdeUKzBEJPqPPEFkohoaVn1k", "total_received"=>519281, "total_sent"=>519281, "balance"=>0, "unconfirmed_balance"=>0, "final_balance"=>0, "n_tx"=>4, "unconfirmed_n_tx"=>0, "final_n_tx"=>4, "txrefs"=>[{"tx_hash"=>"afb235a1568c3aa73aa5d0ed6d99198ce3fb857d822586c41bf0764ae118c1c5", "block_height"=>625997, "tx_input_n"=>7, "tx_output_n"=>-1, "value"=>235203, "ref_balance"=>0, "confirmations"=>9334, "confirmed"=>"2020-04-14T22:12:21Z", "double_spend"=>false}, {"tx_hash"=>"e5ff7ca00c85c7c7eea2e03015d814386dc9f2536577031b5909726f81dcfdec", "block_height"=>625994, "tx_input_n"=>3, "tx_output_n"=>-1, "value"=>284078, "ref_balance"=>235203, "confirmations"=>9337, "confirmed"=>"2020-04-14T21:49:16Z", "double_spend"=>false}, {"tx_hash"=>"83a6453eba87c046f0a1de72cba266f9b3087ae6ec12bb662901d33d2bc771e1", "block_height"=>625340, "tx_input_n"=>-1, "tx_output_n"=>0, "value"=>284078, "ref_balance"=>519281, "spent"=>true, "spent_by"=>"e5ff7ca00c85c7c7eea2e03015d814386dc9f2536577031b5909726f81dcfdec", "confirmations"=>9991, "confirmed"=>"2020-04-10T20:50:53Z", "double_spend"=>false}, {"tx_hash"=>"8aa0896adb78e8fe6981b8de7f8171cdfc43136f5c407946369399980cd2b92f", "block_height"=>625340, "tx_input_n"=>-1, "tx_output_n"=>21, "value"=>235203, "ref_balance"=>235203, "spent"=>true, "spent_by"=>"afb235a1568c3aa73aa5d0ed6d99198ce3fb857d822586c41bf0764ae118c1c5", "confirmations"=>9991, "confirmed"=>"2020-04-10T20:50:53Z", "double_spend"=>false}], "tx_url"=>"https://api.blockcypher.com/v1/btc/main/txs/"}

Handling returned data

The following example implements a portion of the api for the church management software called "Breeze". View Site Notice that the method "request" is overridden, and modifies the data before returning it to the caller.

class BreezeApi < ApiGears
  def initialize(**options)
    if(options[:params].nil?)
      options[:params] = {}
    end
    options[:query_interval] = 10
    subdomain = ENV.fetch("BREEZE_SUBDOMAIN")
    if(options[:Api_key].nil? && options[:params][:Api_key].nil?)
      options[:params]['Api-key'] = ENV.fetch("BREEZE_API_KEY")
    end

    url = "https://#{subdomain}.breezechms.com/api"

    super(url,options)
    endpoint "people"
    endpoint "person", path:'/people/{person_id}'
    endpoint "add_person", path:'/people/add', query_params:["first","last"]
    endpoint "delete_person", path:'/people/delete', query_params:["person_id"]

    endpoint "events", query_params:["start","end","category_id","eligible","details","limit"]
    endpoint "event", path:'events/list_event', query_params:["instance_id","schedule","schedule_direction","schedule_limit","eligible","details"]
    endpoint "calendars", path:'/events/calendars/list'
    endpoint "locations", path:'/events/locations'
    endpoint "add_event", path:'events/add', query_params:["name","starts_on","ends_on","all_day","description","category_id","event_id"]
    endpoint "delete_event", path:'events/delete', query_params:["instance_id"]
  end
  def request(**args)
    result = super
    result = prepare_data(result)
    return result
  end
end

Data returns a hash as above, with all data recursively symbolized. prepare_data also accepts a block, to which it recursively passes each key value pair in the result's dataset.

Contributing

1. Fork it
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Add some feature')
4. Push to the branch (git push origin my-new-feature)
5. Create new Pull Request