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NodeJS PostgreSQL integration

Connect To PostgreSQL


Using PostgreSQLnpm module.

install dependency from npm

npm install pg --save

Now you have to create a PostgreSQL connection, which you can later query.

Assume you Database_Name = students, Host = localhost and DB_User= postgres

var pg = require("pg")
var connectionString = "pg://postgres:postgres@localhost:5432/students";
var client = new pg.Client(connectionString);
client.connect();

Query with Connection Object


If you want to use connection object for query database you can use this sample code.

var queryString = "SELECT name, age FROM students " ;
var query = client.query(queryString);
query.on("row", (row, result)=> {
result.addRow(row);
});
query.on("end", function (result) {
//LOGIC
});


Conclusion

In this page (written and validated by ) you learned about NodeJS PostgreSQL integration . What's Next? If you are interested in completing NodeJS tutorial, your next topic will be learning about: NodeJS MySQL integration.



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