add example app

Author: kashcode

examples/app.py

@@ -0,0 +1,27 @@
+from flask import Flask
+from flask_postgresql import PostgreSQL
+
+app = Flask(__name__)
+app.config["PG_HOST"] = "192.168.99.103"
+app.config["PG_USERNAME"] = "test"
+app.config["PG_PASSWORD"] = "test"
+app.config["PG_DB"] = "test"
+app.config["PG_PORT"] = "5432"
+
+db = PostgreSQL(app)
+
+
+@app.route("/")
+def users():
+    connection = db.connection
+
+    with connection:
+        with connection.cursor() as curs:
+            curs.execute("""select usename from pg_catalog.pg_user""")
+            data = curs.fetchone()
+
+    return data[0]
+
+
+if __name__ == "__main__":
+    app.run(debug=True)