Creating a Client ID (App ID) using ArcGIS Online
You will need to create a Client ID (App ID) prior to launching Experience Builder - Developer Edition
Log in to AGOL or Portal
Click on Content
Click on New item
Select Application
Select Other application and then click on Next
Provide a Title and click Save
Click on Manage
Scroll down to Application and under URL, copy and paste https://localhost:3001/ in the box.
Under Redirect URLs, click Add and copy and paste https://localhost:3001/ in the box. Note: For Enterprise, also add https://localhost:3001 to the Redirect URLs.
Click Save
Copy the App ID (shown on the Item Page) and save it somewhere. You’ll need this ID when you are ready to launch Experience Builder
Installing and Launching:
Download and install the latest Node.js LTS version for your operating system
Download and unzip the newest version ArcGIS Experience Builder - Developer Edition.
Open up a command prompt (Windows) or terminal window (Mac) and ‘cd’ to the directory where Experience Builder - Developer Edition was unzipped and proceed to the server folder
Type npm ci and hit enter. This action may take a few minutes to complete
While this is running, open up another command prompt or terminal window and ‘cd’ to the directory where Experience Builder - Developer Edition was unzipped and proceed to the client folder
Type npm ci and hit enter. This action may take a few minutes to complete
Once each of those actions are completed, type in npm start in each command prompt or terminal window
Open up your internet browser and type in https://localhost:3001/. A warning may appear. Click advanced and then continue to localhost (unsafe)
A prompt will appear asking for your organization's URL and 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 Experience Builder
Additional resources:
ArcGIS Experience Builder Developer Edition Installation