Dependencias:

go get go.mongodb.org/mongo-driver/mongo
go get go.mongodb.org/mongo-driver/mongo/options
go get go.mongodb.org/mongo-driver/bson
go get go.mongodb.org/mongo-driver/bson/primitive
go get golang.org/x/crypto/bcrypt
go get github.com/gorilla/mux
go get github.com/rs/cors
go get github.com/dgrijalva/jwt-go