adding delete csv

Author: KittyJose

lib/const.js

@@ -37,5 +37,6 @@ module.exports = Object.freeze({
     ADD_CSV: 'add_csv',
     GET_CSV: 'get_csv',
     UPDATE_CSV: 'update_csv',
+    DELETE_CSV: 'delete_csv',
     MESSAGE: 'message'
 })

lib/dispatchRequest.js

@@ -63,6 +63,7 @@ function DispatchRequest(url, action, payload, local_auth, remote_auth = null) {
     }
     switch (action) {
         case CONST.DELETE_DATABASE:
+        case CONST.DELETE_CSV:
         case CONST.DELETE_GRAPH:
         case CONST.DELETE_USER:
         case CONST.DELETE_ORGANIZATION:

lib/woqlClient.js

@@ -478,6 +478,22 @@ WOQLClient.prototype.getCSV = function(csvName, download, gtype, gid) {
         })
 }
 
+/**
+ * Deletes a csv into the specified path
+ *
+ * @param {array} csvName is an array of csv file names
+ * @param {string} gtype type of graph  |instance|schema|inference|
+ * @param {string} gid TerminusDB Graph ID to update, main is the default value
+ * @return {Promise} An API success message
+ */
+ WOQLClient.prototype.deleteCSV = function(csvName, gtype, gid) {
+     let options = {}, filePath
+     options.name=csvName;
+     return this.dispatch(CONST.DELETE_CSV, this.connectionConfig.csvURL(gtype, gid), options).then(results => {
+            return results;
+         })
+ }
+
 /**
  * sends a message  to the server
  * @param {string} msg - textual string