Add support for promises

README.md

@@ -31,21 +31,25 @@ And you can now have access to all the methods exposed by the module. They inclu
 **Query (read) data from table**
 ```javascript
 dv.queryData(serviceName, tableName, queryParams, callback);
+dv.asyncQueryData(serviceName, tableName, queryParams);
 ```
 
 **Add data to table**
 ```javascript
 dv.addData(serviceName, tableName, data, callback);
+dv.asyncAddData(serviceName, tableName, data);
 ```
 
 **Update data in table**
 ```javascript
 dv.updateData(serviceName, tableName, identifierField, identifierValue, data, callback);
+dv.asyncUpdateData(serviceName, tableName, identifierField, identifierValue, data);
 ```
 
 **Delete data from table**
 ```javascript
 dv.deleteData(serviceName, tableName, identifierField, identifierValue, callback);
+dv.asyncDeleteData(serviceName, tableName, identifierField, identifierValue);
 ```
 
 
@@ -55,12 +59,14 @@ For *action*s including **signup** and **login**.
 
 ```javascript
 dv.authenticate(action, params, callback);
+dv.asyncAuthenticate(action, params);
 ```
 
 ### RPC
 
 ```javascript
 dv.rpc(serviceName, action, params, callback);
+dv.asyncRPC(serviceName, action, params);
 ```
 
 Note: This readme is a *WIP*. For more info on parameter definitions, etc, see the [DevLess Documentation](https://devless.gitbooks.io/devless-docs-1-3-0/http_api.html).

devless.js

@@ -1,6 +1,7 @@
 "use strict";
 
 const axios = require("axios");
+const promisify = require('./helper')
 
 function Devless(url, token) {
   //CRUD
@@ -28,6 +29,8 @@ function Devless(url, token) {
       });
   };
 
+  this.asyncAddData = promisify(this.addData)
+
   //Query data from service table
   this.queryData = function (serviceName, tableName, params, callback) {
     let queryParams = "";
@@ -50,6 +53,8 @@ function Devless(url, token) {
       });
   };
 
+  this.asyncQueryData = promisify(this.queryData)
+
   //Update data in service table
   this.updateData = function (serviceName, tableName, identifierField, identifierValue, data, callback) {
     let config = {
@@ -78,6 +83,8 @@ function Devless(url, token) {
       });
   };
 
+  this.asyncUpdateData = promisify(this.updateData)
+
   //Delete data in service table
   this.deleteData = function (serviceName, tableName, identifierField, identifierValue, callback) {
     axios({
@@ -103,6 +110,7 @@ function Devless(url, token) {
       });
   };
 
+  this.asyncDeleteData = promisify(this.deleteData)
 
   //Authentication
 
@@ -128,8 +136,9 @@ function Devless(url, token) {
       });
   };
 
-  //General RPC call
+  this.asyncAuthenticate = promisify(this.authenticate)
 
+  //General RPC call
   //RPC call
   this.rpc = function (serviceName, action, params, callback) {
     axios({
@@ -148,9 +157,11 @@ function Devless(url, token) {
       callback(response.data);
     })
       .catch(function (error) {
-        console.log(error);
+        callback(error)
       });
   };
+
+  this.asyncRPC = promisify(this.rpc)
 }
 
 module.exports = Devless;

helper.js

@@ -0,0 +1,11 @@
+"use strict"
+
+function promisify(fn) {
+    return function () {
+        return new Promise((resolve, reject) => {
+            return fn(...Array.from(arguments), response => resolve(response));
+        });
+    };
+}
+
+module.exports = promisify;