Getting Started with J2ME

Register and Create App

Here are the steps you need to follow in order to get started with the App42 platform

  • Register with the App42 platform.
  • Create an App once you are on Quick-start page (after registration)
  • If you are already registered, login to the AppHQ console and create an App from the App Manager -> Create App link
  • Once the App is created, you will get an ApiKey/SecretKey that you will use in your app for initialization of the SDK.
Download and Set up SDK
  • Download J2ME SDK
  • Unzip the downloaded zip file, the unzipped folder contains App42_J2ME-x.x.x.jar
  • Put this jar file into your class-path of the J2ME project


Initialize SDK

You have to instantiate ServiceAPI class and pass your ApiKey/SecretKey to initialize the SDK.

   ServiceAPI serviceAPI = new ServiceAPI("YOUR_API_KEY","YOUR_SECRET_KEY"); 
Using App42 Services

Once you have initialized your SDK with the API Key/SecretKey you have to build the target service that you want to use in your app. For example, User Service can be built using the following snippet. Other services can be built in a similar manner. Want to know about all the services of App42 Platform? Click Here

//Build User Service
UserService userService = serviceAPI.buildUserService();
// Using userService reference, you should be able to call all its methods like create user/update user/authenticate etc.
//Build Storage Service
StorageService storageService = serviceAPI.buildStorageService();
// Using storageService reference, you should be able to call all its methods like insert/save/update/delete etc for JSON objects.
//Similarly you can build other services like App42API.buildXXXXService()

Go To Creating App User for learning App User Management


Go To Saving App Data to learn about App Data Storage.