diff --git a/util-heroku-pg.js b/util-heroku-pg.js
index 7755466..2717101 100755
--- a/util-heroku-pg.js
+++ b/util-heroku-pg.js
@@ -1,116 +1,139 @@
-const { Client } = require('pg')
-const { readConfigurationFromFile } = require('./util-file')
+const { Client } = require('pg');
+const { readConfigurationFromFile } = require('./util-file');
 
 const createConfigurationIfNotExists = () => {
-
-	hasConfiguration((error) => {
-		if (error) {
-			const client = createClient()
-
-			client.connect().then(() => {
-				return createTableIfNotExists(client)
-			}).then((result) => {
-				return truncateTable(client)
-			}).then((result) => {
-				return readConfigurationFromFile()
-			}).then((configurationAsString) => {
-				return writeConfiguration(client, configurationAsString)
-			}).then((result) => {
-				console.log('table successfully created, configuration saved')
-				process.exit(0)
-			}).catch((error) => {
-				console.log(error)
-				process.exit(1)
-			}).then(() => client.end())
-
-		}
-	})
-
-}
+  hasConfiguration((error) => {
+    if (error) {
+      const client = createClient();
+
+      client
+        .connect()
+        .then(() => {
+          return createTableIfNotExists(client);
+        })
+        .then((result) => {
+          return truncateTable(client);
+        })
+        .then((result) => {
+          return readConfigurationFromFile();
+        })
+        .then((configurationAsString) => {
+          return writeConfiguration(client, configurationAsString);
+        })
+        .then((result) => {
+          console.log('table successfully created, configuration saved');
+          process.exit(0);
+        })
+        .catch((error) => {
+          console.log(error);
+          process.exit(1);
+        })
+        .then(() => client.end());
+    }
+  });
+};
 
 const hasConfiguration = (callback) => {
-	const client = createClient()
-
-	client.connect().then(() => {
-		return checkIfTableExists(client)
-	}).then((result) => {
-		if (result.rows[0].exists === true) {
-			callback(null)
-		} else {
-			callback(new Error('table does not exist'))
-		}
-	}).catch((error) => {
-		return callback(error)
-	}).then(() => client.end())
-}
+  const client = createClient();
+
+  client
+    .connect()
+    .then(() => {
+      return checkIfTableExists(client);
+    })
+    .then((result) => {
+      if (result.rows[0].exists === true) {
+        callback(null);
+      } else {
+        callback(new Error('table does not exist'));
+      }
+    })
+    .catch((error) => {
+      return callback(error);
+    })
+    .then(() => client.end());
+};
 
 const getConfiguration = (callback) => {
-	const client = createClient()
-
-	client.connect().then(() => {
-		return readConfiguration(client)
-	}).then((result) => {
-		if (result.rows.length === 1) {
-			callback(null, JSON.parse(result.rows[0].data))
-		} else {
-			callback(new Error(`configuration invalid, ${result.rows.length} rows found`))
-		}
-	}).catch((error) => {
-		return callback(error)
-	}).then(() => client.end())
-
-}
+  const client = createClient();
+
+  client
+    .connect()
+    .then(() => {
+      return readConfiguration(client);
+    })
+    .then((result) => {
+      if (result.rows.length === 1) {
+        callback(null, JSON.parse(result.rows[0].data));
+      } else {
+        callback(new Error(`configuration invalid, ${result.rows.length} rows found`));
+      }
+    })
+    .catch((error) => {
+      return callback(error);
+    })
+    .then(() => client.end());
+};
 
 const setConfiguration = (configuration, callback) => {
-	const configurationAsString =  JSON.stringify(configuration, null, 4)
-
-	const client = createClient()
-
-	client.connect().then(() => {
-		return truncateTable(client)
-	}).then((result) => {
-		return writeConfiguration(client, configurationAsString)
-	}).then((result) => {
-		return callback(null)
-	}).catch((error) => {
-		console.log(error)
-		return callback(error)
-	}).then(() => client.end())
-}
+  const configurationAsString = JSON.stringify(configuration, null, 4);
+
+  const client = createClient();
+
+  client
+    .connect()
+    .then(() => {
+      return truncateTable(client);
+    })
+    .then((result) => {
+      return writeConfiguration(client, configurationAsString);
+    })
+    .then((result) => {
+      return callback(null);
+    })
+    .catch((error) => {
+      console.log(error);
+      return callback(error);
+    })
+    .then(() => client.end());
+};
 
 const createClient = () => {
-	return new Client({
-		connectionString: process.env.DATABASE_URL,
-	})
-}
-
-const checkIfTableExists =  (client) => {
-	return client.query('SELECT EXISTS (SELECT 1 FROM information_schema.tables WHERE table_schema = \'public\' AND table_name = \'configuration\')')
-}
+  return new Client({
+    connectionString: process.env.DATABASE_URL,
+    ssl: { rejectUnauthorized: false }
+  });
+};
+
+const checkIfTableExists = (client) => {
+  return client.query(
+    "SELECT EXISTS (SELECT 1 FROM information_schema.tables WHERE table_schema = 'public' AND table_name = 'configuration')"
+  );
+};
 
 const createTableIfNotExists = (client) => {
-	return client.query('CREATE TABLE IF NOT EXISTS configuration (id serial, data text)')
-}
+  return client.query('CREATE TABLE IF NOT EXISTS configuration (id serial, data text)');
+};
 
 const truncateTable = (client) => {
-	return client.query('TRUNCATE configuration')
-}
+  return client.query('TRUNCATE configuration');
+};
 
 const writeConfiguration = (client, configuration) => {
-	const query = {
-		text: 'INSERT INTO configuration(data) values($1)',
-		values: [configuration],
-	}
+  const query = {
+    text: 'INSERT INTO configuration(data) values($1)',
+    values: [configuration]
+  };
 
-	return client.query(query)
-}
+  return client.query(query);
+};
 
 const readConfiguration = (client) => {
-	return client.query('SELECT * FROM configuration')
-}
+  return client.query('SELECT * FROM configuration');
+};
 
 module.exports = {
-	createConfigurationIfNotExists,
-	getConfiguration,
-	setConfiguration
-}
\ No newline at end of file
+  createConfigurationIfNotExists,
+  getConfiguration,
+  setConfiguration
+};