Merge pull request #19 from oslabs-beta/new_test

Tweaks for postgres connection and comments

Author: wiris316

electron/databases/postgres.ts

@@ -4,9 +4,10 @@ const connectSQL = async (i: number, URI: string) => {
   try {
     const pool= new Pool({
       connectionString: URI,
+      idleTimeoutMillis: 2000, // Time after which idle connections are closed
     })
     const client = await pool.connect();
-    client.release()
+    client.release() // Releases connection back to the pool
     console.log('connected to sql')
     return pool; 
   } catch (err) {

examples/docker/README.md

@@ -31,15 +31,18 @@ ORDER_URI =  A **MongoDB** URI for the orderserver microservice to use
 docker-compose -f docker-compose.yml up
 ```
 
-#
+# 
 
 You should now see the containers running in your terminal, each reporting "Docker data recorded in...". If this is being displayed for the books, customers, frontend, and orders microservices then the example is successfully saving health metrics to your database of choice!
 
 *If there is any error when running the applications and the underlying files for a microservice were changed, be sure to delete the previous image before calling `docker-compose -f docker-compose.yml up` again. If you do not, the docker compose command will not know to rebuild the image and the code changes meant to fix any issues will not be rolled into the existing Docker image!*
 
 Your microservice health metrics can now be viewed at the given `CHRONOS_URI` or, preferrably, in the Electron.js desktop application.
 
-#
+
+# To stop and remove containers
+Use `docker compose down` to stop containers
+
 
 ## Contributing
 Chronos hopes to inspire an active community of both users and developers. For questions, comments, or contributions, please submit a pull request.