Add key removal

FinalCommander.go

@@ -129,6 +129,7 @@ func handle(ctx *httputils.RequestContext) {
 		if len(pathElements) > 3 {
 
 			if pathElements[3] == "information" {
+				ctx.SetResponseCode(http.StatusOK)
 				ctx.SetResponseHeader("Content-Type", "application/json")
 				if entry != nil {
 					b, _ := json.Marshal(struct {
@@ -158,6 +159,13 @@ func handle(ctx *httputils.RequestContext) {
 					ctx.ServeBytes(b)
 				}
 				return
+			} else if pathElements[3] == "drop" { //Drop key from cache
+				ctx.SetResponseCode(http.StatusOK)
+				_ = db.RemoveEntry(key)
+				if entry != nil && !entry.Key.Equals(key) {
+					_ = db.RemoveEntry(&entry.Key)
+				}
+				return
 			}
 
 			//TODO: update entries with these instant returns

content/database.go

@@ -53,6 +53,12 @@ func (db *Database) SetEntry(entry *Entry) error {
 	})
 }
 
+func (db *Database) RemoveEntry(key *HashIdentifier) error {
+	return db.handle.Update(func(txn *badger.Txn) error {
+		return txn.Delete(key.Encode())
+	})
+}
+
 func (db *Database) getChain(txn *badger.Txn, key HashIdentifier) (*Entry, error) {
 	item, err := txn.Get(key.Encode())
 	if err != nil {