Imports github.com/strongo/app github.com/strongo/log github.com/strongo/app/user github.com/strongo/bots-framework/core github.com/strongo/bots-api-viber github.com/strongo/bots-api-viber/viberinterface github.com/julienschmidt/httprouter github.com/pkg/errors Standard library imports crypto/hmac crypto/sha256 context encoding/hex fmt io/ioutil net/http net/url regexp strconv strings time