Created
June 15, 2014 21:09
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Node.js, Express, and SQLite to wrap a REST API around an SQL database
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var sqlite3 = require('sqlite3').verbose(); | |
var db = new sqlite3.Database('data/demodb02'); | |
db.serialize(function() { | |
db.run("CREATE TABLE IF NOT EXISTS counts (key TEXT, value INTEGER)"); | |
db.run("INSERT INTO counts (key, value) VALUES (?, ?)", "counter", 0); | |
}); | |
var express = require('express'); | |
var restapi = express(); | |
restapi.get('/data', function(req, res){ | |
db.get("SELECT value FROM counts", function(err, row){ | |
res.json({ "count" : row.value }); | |
}); | |
}); | |
restapi.post('/data', function(req, res){ | |
db.run("UPDATE counts SET value = value + 1 WHERE key = ?", "counter", function(err, row){ | |
if (err){ | |
console.err(err); | |
res.status(500); | |
} | |
else { | |
res.status(202); | |
} | |
res.end(); | |
}); | |
}); | |
restapi.listen(3000); | |
console.log("Submit GET or POST to http://localhost:3000/data"); |
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Using
db.all
can query all rows:http://www.sqlitetutorial.net/sqlite-nodejs/query/
Using
db.run
is probably your best bet for any update statements:http://www.sqlitetutorial.net/sqlite-nodejs/update/