refactor(config): Update default values in database configuration variables

Author: wajeht

src/config.ts

@@ -21,11 +21,11 @@ export const emailConfig = {
 } as const;
 
 export const databaseConfig = {
-	port: parseInt(process.env.DB_PORT as unknown as string),
-	host: process.env.DB_HOST,
-	username: process.env.DB_USERNAME,
-	password: process.env.DB_PASSWORD,
-	database: process.env.DB_DATABASE,
+	port: parseInt(process.env.DB_PORT || '5432'),
+	host: process.env.DB_HOST || 'postgres',
+	username: process.env.DB_USERNAME || 'username',
+	password: process.env.DB_PASSWORD || 'password',
+	database: process.env.DB_DATABASE || 'database',
 } as const;
 
 export const redisConfig = {

src/db/knexfile.ts

@@ -6,12 +6,7 @@ const developmentEnvironmentOnly = appConfig.env === 'development';
 
 const knexConfig: Knex.Config = {
 	client: 'pg',
-	connection: {
-		host: databaseConfig.host,
-		user: databaseConfig.username,
-		password: databaseConfig.password,
-		database: databaseConfig.database,
-	},
+	connection: `postgresql://${databaseConfig.username}:${databaseConfig.password}@${databaseConfig.host}/${databaseConfig.database}`,
 	migrations: {
 		extension: 'ts',
 		tableName: 'knex_migrations',