Node.js and PostgresSQL with Express - node.js

Question

I've written a code to fetch the data from postgres database using express and NODE.js. the database is connected with the backend code but still it is showing error like relation does not exit.
Please check the code and error that I got:
var express = require('express');
var pg = require("pg");
var app = express();
var connectionString = "postgres://postgres:postgres#localhost:5432/testDatabase?currentSchema=testSchema";
app.get('/', function(req, res, next) {
pg.connect(connectionString, function(err, client, done) {
if (err) {
console.log("Not able to get Connection " + err);
res.status(400).send(err);
} else {
console.log("Connected.!");
}
const
query = {
// give the query a unique name
name : 'fetch-user-details',
text : 'SELECT * FROM loginTable',
}
client.query(query, function(err, result) {
done(); // closing the connection;
if (err) {
console.log(err);
res.status(400).send(err);
}
res.status(200).send(result.rows);
});
});
});
app.listen(4000, function() {
console.log('Server is running.. on Port 4000');
});
and the error response that I got is like:
Server is running.. on Port 4000
Connected.!
{ error: relation "logintable" does not exist
at Connection.parseE (C:\Users\sumit_srivastava\Desktop\Java_WorkSpace\SimpleNodeAppln\node_modules\pg\lib\connection.js:554:11)
at Connection.parseMessage (C:\Users\sumit_srivastava\Desktop\Java_WorkSpace\SimpleNodeAppln\node_modules\pg\lib\connection.js:381:17)
at Socket.<anonymous> (C:\Users\sumit_srivastava\Desktop\Java_WorkSpace\SimpleNodeAppln\node_modules\pg\lib\connection.js:117:22)
at emitOne (events.js:116:13)
at Socket.emit (events.js:211:7)
at addChunk (_stream_readable.js:263:12)
at readableAddChunk (_stream_readable.js:250:11)
at Socket.Readable.push (_stream_readable.js:208:10)
at TCP.onread (net.js:594:20)
name: 'error',
length: 120,
severity: 'ERROR',
code: '42P01',
detail: undefined,
hint: undefined,
position: '15',
internalPosition: undefined,
internalQuery: undefined,
where: undefined,
schema: undefined,
table: undefined,
column: undefined,
dataType: undefined,
constraint: undefined,
file: 'src\\backend\\parser\\parse_relation.c',
line: '986',
routine: 'parserOpenTable' }

Answer 1

just run this db dump at my Postgres
CREATE SCHEMA "testSchema";
ALTER SCHEMA "testSchema" OWNER TO postgres;
SET search_path = "testSchema", pg_catalog;
SET default_tablespace = '';
SET default_with_oids = false;
CREATE TABLE "loginTable" ( "ID" numeric NOT NULL, "Name" text );
ALTER TABLE "loginTable" OWNER TO postgres;
this was the problem
change your query to this
query = {
// give the query a unique name
name : 'fetch-user-details',
text : `SELECT * FROM "testSchema".logintable`,
}
you should mention the schema name
tasted on
Ubuntu
postgres 10.6
pg: 6.4.2
node v10.14.1