Dependencies for the postgre driver was added to the POM file.

pom.xml

@@ -56,6 +56,13 @@
 			<groupId>org.springframework.boot</groupId>
 			<artifactId>spring-boot-starter-oauth2-resource-server</artifactId>
 		</dependency>
+
+		<dependency>
+			<groupId>org.postgresql</groupId>
+			<artifactId>postgresql</artifactId>
+			<version>42.6.0</version>
+		</dependency>
+
 	</dependencies>
 
 	<build>

target/classes/application.properties

-domain.domain = "localhost:5334";
+
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+# Database connection settings
+spring.datasource.url=jdbc:postgres://smartmat_user:Eyhs1OJxyZC56NQCrV7yAolEk9AkLAsC@dpg-cgv5710dh87i4q0fd1b0-a.frankfurt-postgres.render.com/smartmat
+spring.datasource.username=smartmat_user
+spring.datasource.password=Eyhs1OJxyZC56NQCrV7yAolEk9AkLAsC
+spring.datasource.driver-class-name=org.postgresql.Driver
+
+## info
+
+# Hostname: dpg-cgv5710dh87i4q0fd1b0-a
+# Port: 5432
+# Database: smartmat
+# Username: smartmat_user
+# Password: Eyhs1OJxyZC56NQCrV7yAolEk9AkLAsC
+# Internal Database URl (from render): postgres://smartmat_user:Eyhs1OJxyZC56NQCrV7yAolEk9AkLAsC@dpg-cgv5710dh87i4q0fd1b0-a/smartmat
+# External Database URL: postgres://smartmat_user:Eyhs1OJxyZC56NQCrV7yAolEk9AkLAsC@dpg-cgv5710dh87i4q0fd1b0-a.frankfurt-postgres.render.com/smartmat
+# PSQL Command: PGPASSWORD=Eyhs1OJxyZC56NQCrV7yAolEk9AkLAsC psql -h dpg-cgv5710dh87i4q0fd1b0-a.frankfurt-postgres.render.com -U smartmat_user smartmat
\ No newline at end of file