Imports gopkg.in/go-playground/validator.v8 github.com/go-gorp/gorp github.com/go-sql-driver/mysql github.com/sendgrid/sendgrid-go github.com/sendgrid/sendgrid-go/helpers/mail Standard library imports bytes crypto/rand crypto/sha256 database/sql encoding/base64 encoding/json errors fmt html/template io/ioutil log net/http reflect regexp strconv strings time