/
endpoint.go
114 lines (98 loc) · 2.82 KB
/
endpoint.go
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package ipfs
import (
"encoding/json"
"github.com/gorilla/mux"
"github.com/zeebo/errs"
"go.uber.org/zap"
"net/http"
)
// ErrEndpoint - ipfs endpoint error class.
var ErrEndpoint = errs.Class("ipfs endpoint")
// architecture: Endpoint
type Endpoint struct {
log *zap.Logger
service *Service
}
// NewEndpoint creates new ipfs endpoint instance.
func NewEndpoint(log *zap.Logger, service *Service) *Endpoint {
return &Endpoint{
log: log,
service: service,
}
}
// Register registers endpoint methods on API server subroute.
func (endpoint *Endpoint) Register(router *mux.Router) {
router.HandleFunc("/peers", endpoint.Peers).Methods(http.MethodGet)
router.HandleFunc("/pinned/{cid}", endpoint.Pinned).Methods(http.MethodGet)
router.HandleFunc("/add", endpoint.Upload).Methods(http.MethodPost)
}
// Peers endpoint retrieves all the active Peers
func (endpoint *Endpoint) Peers(w http.ResponseWriter, r *http.Request) {
ctx := r.Context()
var err error
defer mon.Task()(&ctx)(&err)
peers, err := endpoint.service.GetPeers(ctx)
if err != nil {
endpoint.serveJSONError(w, http.StatusInternalServerError, ErrEndpoint.Wrap(err))
return
}
err = json.NewEncoder(w).Encode(peers)
if err != nil {
endpoint.log.Error("failed to write json pins response", zap.Error(ErrEndpoint.Wrap(err)))
return
}
}
// serveJSONError writes JSON error to response output stream.
func (endpoint *Endpoint) serveJSONError(w http.ResponseWriter, status int, err error) {
w.WriteHeader(status)
var response struct {
Error string `json:"error"`
}
response.Error = err.Error()
err = json.NewEncoder(w).Encode(response)
if err != nil {
endpoint.log.Error("failed to write json error response", zap.Error(ErrEndpoint.Wrap(err)))
return
}
}
func (endpoint *Endpoint) Upload(writer http.ResponseWriter, r *http.Request) {
err := r.ParseMultipartForm(32 << 20)
if err != nil {
endpoint.log.Error("failed to write json error response", zap.Error(ErrEndpoint.Wrap(err)))
return
}
file, _, err := r.FormFile("file")
if err != nil {
endpoint.log.Error("failed to write json error response", zap.Error(ErrEndpoint.Wrap(err)))
return
}
hash, err := endpoint.service.Upload(r.Context(), file)
if err != nil {
endpoint.log.Error("failed to write json error response", zap.Error(ErrEndpoint.Wrap(err)))
return
}
err = json.NewEncoder(writer).Encode(struct {
Hash string
}{
Hash: hash,
})
if err != nil {
endpoint.log.Error("failed to write json pins response", zap.Error(ErrEndpoint.Wrap(err)))
return
}
}
func (endpoint *Endpoint) Pinned(writer http.ResponseWriter, request *http.Request) {
cid := mux.Vars(request)["cid"]
res, err := endpoint.service.IsPinned(request.Context(), cid)
if err != nil {
return
}
err = json.NewEncoder(writer).Encode(struct {
Pinned bool
}{
Pinned: res,
})
if err != nil {
return
}
}