Install and Launch ArcGIS Web AppBuilder (WAB) - Developer Edition
Creating a Client ID (App ID) using ArcGIS Online
You will need to create a Client ID (App ID) prior to launching ArcGIS Web AppBuilder - Developer Edition
Log in to your ArcGIS Online account
Click on Content
Click on New item
Select Application
Select Web Mapping and then click on Next
Provide a Title and click Save
Click on Settings
Scroll down to the Web Mapping Application pane, Data Source, and in URL enter https://localhost:3334/webappbuilder. Then click on Register application
Under Redirect URI, copy and paste https://localhost:3334/ in the box. Click Register
Copy the Client ID and save it somewhere. You’ll need this ID when you are ready to launch the Web AppBuilder
Installing and Launching:
Download and install the latest Node.js LTS version for your operating system
Download and unzip the newest version ArcGIS WebAppBuilder - Developer Edition. You will only need to download the file with the ‘Download’ Type
Open the folder where you unzipped the ArcGIS WebAppBuilder and double-click on the Windows Batch File called startup
The batch file starts the Node.js server in the Command Prompt window. Please keep this window open during the whole time you are working with ArcGIS WebAppBuilder
Open up your internet browser and type in https://localhost:3334/. A warning may appear. Click advanced and then continue to localhost (unsafe)
A prompt will appear asking for your organization's URL and it may request the Client ID (App ID) you previously generated
You may get an additional prompt - Request for Permission. Click Allow and you should now have successfully launched ArcGIS Web AppBuilder
Additional resources: