EDAP Backend

Setting up the server for data collection

Preparing the backend server and simulation to talk with each other requires three steps:

• Host this backend server
• Connect this server with a database
• Connect the simulation with the server

Hosting this server

1. Clone this repository to a server (an EC2 instance using Ubuntu on AWS, for example)
2. Install the required packages

   In the directory with the server, run npm install

3. In this same directory, create a file called .env

   On a linux server through the terminal, as an example, you can run the command:

   touch .env

4. Add the database connection string to the .env file in the form of MongoConnectionURI=<string>, where <string> is replaced with the connection string (see the database section).

   Example:

   vim .env

   Press I to insert text

   Type MongoConnectionURI=<insert connection string here>

   Press esc

   Type :wq to save and close the file

5. Run the server

   In the terminal, run npm run go

Connecting to a database

1. Create a database with MongoDB (you should have a connection string that contains a username and password for the database)
2. Add this connection string to the server's .env file

   Example:

   vim .env

   Press I to insert text

   Type MongoConnectionURI=<insert connection string here>

   Press esc

   Type :wq to save and close the file

Connect the simulation

With the server running, you should have a URL that allows you to connect to the server.

1. Open the Unity project in Unity
2. In TelemetryManager.cs, change the first line of the TelemetryManager class (currently line 39) to contain the backend server's URL

   public static string url = "<insert server URL here>";

3. Build the project to the headset