rublen / binance Goto Github PK

• a test task

Task:

"There is a Binance type crypto-exchange, the user wants to transfer historical data about his trading activity in read-only mode. We need to collect data through the API and output it to the console.

Requirements:

• mysql database
• table :credentials (key, secret) created through migration
• VCR-tests for receiving data from Binance. If the API key is incorrect, write an error to the log.
• go through all the credentials and pull data for each one.
• the result should be a hash like this: {credential_id: 123, trades: [{date: 2018-10-11, type: 'BUY / SELL', price: 34, quantity: 10}], balances: []}"

Run the programme

ruby main.rb - runs the programme, it has some explanations and some commented code that perhaps may be useful

Testing

rspec spec/api_requests_spec.rb - runs the specs that test how requests for Binance api works:

• ping call (public) just for checking connection with Binance API (there is no need API key and secret or any params)
• three account endpoints (require some kind of params and signature) - included general tests on status 200 and class of returned object and tests for fields that are needed for response_hash

rspec spec/responce_processing_spec.rb - runs the specs which test ResponseProcessing class:

• method #raw_response should raise an error in case invalid api_key or return response body in other case
• method #response_hash shoud return a hash with appropriate structure (see in requirements)