• Install Solidity compiler, required to generate Go bindings for .sol files. IMPORTANT: DO NOT use npm to install solc. Use apt-get/Homebrew instead.
• Install 'dep'
• 'dep ensure' all the dependencies
• Install 'abigen' tool. IMPORTANT: run 'go install' from vendor folder, not from %GOPATH/src
• Generate the bindings using 'abigen' by running 'go generate' command
• Fill config.yaml file with according info
• Start the server by running 'go run main.go'
• Alternatively run 'go build main.go' and run produced executable

• Interaction with server is performed by utilizing the API
• The endpoint is:
  • GET /exchange/:ethereum_address - Send the request to server with ethereum address to which tokens will be sent. The response is Bitcoin address to which bitcoins must be sent to buy tokens.

-1 = An error occured. Please look at the 'error' column for details
0 = A purchase was requested, but the funds haven't arrived yet
1 = User has successfully purchased tokens using BTC