finished uptil creating psql api

querier.js

@@ -0,0 +1,22 @@
+const { Client } = require('pg')
+const client = new Client()
+
+client.connect();
+
+if (process.argv.length <= 2) {
+    console.log("Usage: node querier.js <some magnitude>");
+    process.exit(-1);
+}
+
+const query = 'SELECT name, magnitude FROM Earthquake WHERE magnitude >= $1 ORDER BY Magnitude DESC'
+const magnitude = [process.argv[2]];
+
+client.query(query, magnitude, (err, res) => {
+    if (err) {
+        console.log(err.stack)
+    } else {
+        // console.log(res)
+        res.rows.forEach(row => console.log(`${row.name}: ${row.magnitude}`));
+    }
+    client.end()
+})

test.js

@@ -0,0 +1,43 @@
+const { Client } = require('pg')
+const client = new Client()
+
+client.connect()
+
+// client.query('select now()', (err, res) => {
+//     if (err) console.log(err);
+
+//     console.log(res);
+//     client.end()
+// })
+
+// client.query('SELECT NOW() as now', (err, res) => {
+//     if (err) {
+//         console.log(err.stack)
+//     } else {
+//         console.log(res.rows[0])
+//     }
+// })
+
+client.query('CREATE TABLE IF NOT EXISTS Earthquake(ID SERIAL PRIMARY KEY, Name VARCHAR(20), Magnitude REAL, Lat Real, Lon REAL, Date DATE)');
+
+let data = [
+    ["Earthquake 1", 2.2],
+    ["Earthquake 2", 7.0],
+    ["Earthquake 3", 1.8],
+    ["Earthquake 4", 5.2],
+    ["Earthquake 5", 2.9],
+    ["Earthquake 6", 0.6],
+    ["Earthquake 7", 6.6]
+];
+
+data.forEach(values => {
+    const text = 'INSERT INTO Earthquake(Name, Magnitude) VALUES($1, $2)'
+
+    client.query(text, values, (err, res) => {
+        if (err) {
+            console.log(err.stack)
+        } else {
+            console.log(res.rows[0])
+        }
+    })
+})