Imports github.com/Imgur/mandible/config github.com/Imgur/mandible/imageprocessor github.com/Imgur/mandible/imagestore github.com/Imgur/mandible/uploadedfile github.com/PagerDuty/godspeed github.com/gorilla/mux Standard library imports crypto/hmac crypto/sha256 encoding/base64 encoding/json errors fmt hash io io/ioutil log net net/http os path strings time