postgresql - How can I do Multiple Queries (build out a DB) in Node.JS? -

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really new node.js , relatively new postgresql. reason creates first table, not second. totally doing wrong. can't seem find code examples similar enough extrapolate answer from. want create 2 tables. seems can run 1 query , that's it. no more. it's suggested connection ends before second can executed. don't know why. can't find single example of doing in dozen different google searches.

var client = new pg.client(connectionstring); client.connect(); var query = client.query('create table preferences(id serial primary key, food varchar(40) not null, preferred boolean)'); client.query('create table foods(id serial primary key, food varchar(40) not null, type varchar(40) not null, spicy boolean, spiciness varchar(10)'); query.on('end', function() { client.end(); });

i had doubts client.query , have execute @ end. took example out of tutorial second table added. i'm playing , trying learn here test.

just state ultimate end goal: wanna create whole script building out database full of necessary tables , data.

error no matter try:

$ node models/database.js events.js:85 throw er; // unhandled 'error' event ^ error: syntax error @ end of input @ connection.parsee (~/documents/test01/node_modules/pg/lib/connection.js:534:11) @ connection.parsemessage (~/documents/test01/node_modules/pg/lib/connection.js:361:17) @ socket. (~/documents/test01/node_modules/pg/lib/connection.js:105:22) @ socket.emit (events.js:107:17) @ readableaddchunk (_stream_readable.js:163:16) @ socket.readable.push (_stream_readable.js:126:10) @ tcp.onread (net.js:538:20)

the best way place requests transaction , execute within same connection.

here's how can of pg-promise:

var pgp = require('pg-promise')(/*options*/); var db = pgp(connection);  db.tx(t => {         return t.batch([             t.none('create table preferences(id serial, etc...'),             t.none('create table foods(id serial primary key, etc...')         ]);     })     .then(data => {         // success;     })     .catch(error => {         console.log(error); // print error;     });

better yet, place sql external sql files, library provides automatic support.


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