* removes some unnecessary legacy stuff

lib/index.js

@@ -24,43 +24,39 @@ function Client(transferServer) {
      *
      * @param endpoint (string), e.g. /deposit
      * @param params (object), a list of GET parameters to be included in the request
-     * @param callback (function), processes the response
      */
-    this.get = async function(endpoint, params, callback) {
-        return await sendRequest('get', endpoint, params, callback);
+    this.get = async function(endpoint, params) {
+        return await sendRequest('get', endpoint, params);
     };
 
     /**
      * Use this method to communicate with POST endpoints
      *
      * @param endpoint (string)
      * @param params (object), a list of POST parameters to be included in the request
-     * @param callback (function), processes the response
      */
-    this.post = async function(endpoint, params, callback) {
-        return await sendRequest('post', endpoint, params, callback);
+    this.post = async function(endpoint, params) {
+        return await sendRequest('post', endpoint, params);
     };
 
     /**
      * Use this method to communicate with PUT endpoints
      *
      * @param endpoint (string)
      * @param params (object), a list of PUT parameters to be included in the request
-     * @param callback (function), processes the response
      */
-    this.put = async function(endpoint, params, callback) {
-        return await sendRequest('put', endpoint, params, callback);
+    this.put = async function(endpoint, params) {
+        return await sendRequest('put', endpoint, params);
     };
 
     /**
      * Use this method to communicate with DELETE endpoints
      *
      * @param endpoint (string)
      * @param params (object), a list of DELETE parameters to be included in the request
-     * @param callback (function), processes the response
      */
-    this.delete = async function(endpoint, params, callback) {
-        return await sendRequest('delete', endpoint, params, callback);
+    this.delete = async function(endpoint, params) {
+        return await sendRequest('delete', endpoint, params);
     };
 
     // private validator function