![]() ![]() Password: The randomly generated password for your database cluster.This replaces the root user, which is not accessible. Username: The default user for all PostgreSQL Managed Databases is linpostgres.The Connection Details section contains information and credentials needed for you to connect to your database. This opens the detail page for that database cluster. Select your PostgreSQL Managed Database from the list. Log in to the Cloud Manager and select Databases from the left navigation menu. This guide details how to access your database using popular tools. Module.exports = EventCreateValidator = Joi.To connect to a PostgreSQL Managed Database, you need to know a few important details, such as the username, password, and host (or IP). Open eventCreate.js and insert: const Joi = require('joi') One is for creating an event and the other is for updating.Ĭreate two two file inside the validators folder: “eventCreate.js” and “eventUpdate.js Open index.js file and insert: /* Databse connection Inside db folder, create two files: “index.js” and “event.js” Then, create inside the configs folder file named “config.js” and insert: require('dotenv').config() Ĭonfig.db.username = _USERNAME Ĭonfig.db.password = _PASSWORD Ĭonfig.db.database = _DATABASE Ĭonfig.db.dialect = _DIALECT –save-dev dependencies will be not installed on production environment.įirstly configure the nodemon, for that open package.json and into scripts "start": "nodemon index.js"Īnd then configure our. Nodemon: Restarts the server automatically on each file changes Pg: NodeJS PostgreSQL connection “driver” It features solid transaction support, relations, eager and lazy loading, read replication and more. Sequelize: Sequelize is a promise-based Node.js ORM for Postgres, MySQL, MariaDB, SQLite and Microsoft SQL Server. env file and adds into process variable which is readable globally Now were ready to install the required dependencies: npm i express dotenv sequelize pg joi & npm i -save-dev nodemonĮxpress: Framework to handle requests and responsesĭotenv: Reads from. env: Environment variables such as PostgreSQL connection Services: runs one service, for example get data from the DatabaseĬonfigs: Object with configs, reads environment file attributes Controllers will never access to the Database! Routes: Our all routes will be defined hereĬontrollers: Each route has own controller, controller handles the request and response and calls multiple services. ![]() Open Terminal and initial the Project: npm init -yĪfter that create the folders and files mkdir configs controllers db routes services validators & touch. Now once you open the history_events table you should see the old value.Ĭreate any folder and open it in Visual Studio Code Editor. , 'In this event we will show PostgreSQL' ( id int primary key default nextval ('data.history_seq_events')Īlso create the trigger to save all changes automatically into the history table create function data.tf_update_events_history()Ĭreate trigger t_before_update_log_event_historyĮxecute procedure data.tf_update_events_history() Īnd finally, we can test if our history trigger is working insert into data.events ( id int primary key default nextval ('q_events')Ĭreate sequence data.history_seq_events start with 1 For that open new SQL-Editor.Ĭreate sequence q_events start with 1 PostgreSQL is creating public schema by default. Now we can connect with our DBeaver client. As Database client I will use DBeaver to create the tables.Īfter you installed PostgreSQL we need to create database from the psql client. As alternative you can also follow the steps in PostgreSQL Page. If you don’t have PostgreSQL installed yet, please follow these steps in our Blog. Firstly, we will create our PostgreSQL Tables and history tables. ![]() CRUD means: create, read, update and delete. We will create API for public events with CRUD options. ![]() In this Blog I will describe how to create an API Backend with NodeJS using PostgreSQL as Database. ![]()
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