Imports
- github.com/devopsfaith/krakend/config/viper
- github.com/devopsfaith/krakend/logging
- github.com/devopsfaith/krakend/proxy
- github.com/devopsfaith/krakend/router/mux
- github.com/devopsfaith/krakend/router/negroni
- github.com/gorilla/mux
- github.com/prometheus/client_golang/prometheus
- github.com/urfave/negroni
- github.com/zbindenren/negroni-prometheus
- gopkg.in/unrolled/secure.v1