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sqlite-server.js
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164 lines (129 loc) · 4.53 KB
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'use strict';
var url = require('url');
var sqlite3 = require('sqlite3').verbose();
var today = new Date()
var todayString = today.getFullYear() + '-' + ('0' + (today.getMonth()+1)).slice(-2) + '-' + ('0' + today.getDate()).slice(-2);
// var OVER_RIDE_NAME = 'Mon_Nov_06_2017'
var OVER_RIDE_NAME = '2018-03-21_classified_forecast_tweets'
var MELISSA_STATIC_DB = '/home/mebi6705/Simple-API/daily_coded_tweet_db_files/' + OVER_RIDE_NAME + '.sqlite3'
var db = new sqlite3.Database(MELISSA_STATIC_DB);
// var TESTING_DB = "2017-11-16.sqlite3"
// var db = new sqlite3.Database(TESTING_DB)
var myParser = require("body-parser");
db.serialize(function() {
db.run("CREATE TABLE IF NOT EXISTS tweets (tweet TEXT, value INTEGER, detail TEXT, user TEXT, timestamp TIMESTAMP)");
db.run("CREATE TABLE IF NOT EXISTS meta (key TEXT, value INTEGER)");
db.run("INSERT INTO meta(key,value) SELECT 'postAdd',0 WHERE NOT EXISTS(SELECT 1 FROM meta WHERE key = 'postAdd')")
db.run("INSERT INTO meta(key,value) SELECT 'postDel',0 WHERE NOT EXISTS(SELECT 1 FROM meta WHERE key = 'postDel')")
});
var express = require('express');
var restapi = express();
//https://gist.github.com/dalelane/6ce08b52d5cca8f92926
restapi.use(myParser.urlencoded({extended : true}));
restapi.use(function(req, res, next) {
res.header("Access-Control-Allow-Origin", "*");
res.header("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept");
next();
});
restapi.get('/sqlite', function(req, res){
console.warn("GET Request to /sqlite")
db.all("SELECT * FROM tweets ORDER BY timestamp DESC LIMIT 25", function(err, row) {
if (err) throw err
res.json(row)
});
});
restapi.get('/sqlite-status', function(req, res){
console.warn("GET Request to /sqlite-status")
var tweets = []
db.all("SELECT * FROM meta", function(err, row) {
if (err) throw err
res.json(row)
});
});
restapi.get('/sqlite-tweets', function(req, res){
console.warn("Returning Tweet List")
});
//Save a tweet ID
restapi.post('/sqlite', function(req, res){
db.run("UPDATE meta SET value = value + 1 WHERE key = 'postAdd'", function(err, row){
if (err) throw err;
})
var payload = req.body;
console.log("WRITING TWEET TO DATABASE: "+payload.tweet +" by USER: "+payload.user + " DETAIL: "+payload.detail)
// db.run("INSERT INTO tweets (tweet, value, detail, user, timestamp) VALUES (?,?,?,?,CURRENT_TIMESTAMP)",
db.run("INSERT INTO tweets (tweet, value, detail, user, timestamp) VALUES (?,?,?,?,datetime(CURRENT_TIMESTAMP,'localtime'))",
payload.tweet,
payload.value,
payload.detail,
payload.user,
function(err, row){
if (err){
console.error(err);
res.status(500);
}
else {
res.status(200);
}
res.end();
}
);
});
//Remove an existing tweet
restapi.post('/sqlite-remove', function(req, res){
db.run("UPDATE meta SET value = value + 1 WHERE key = 'postDel'", function(err, row){
if (err) throw err;
})
var payload = req.body;
console.log("REMOVING TWEET: "+payload.tweet +" by USER: "+payload.user + " DETAIL: "+payload.detail)
db.run("DELETE FROM tweets WHERE tweet == ? AND user == ? AND detail == ?", payload.tweet, payload.user, payload.detail,
function(err, row){
if (err){
console.error(err);
res.status(500);
}
else {
res.status(200);
res.send("Removed Tweet: "+payload.tweet)
}
res.end();
});
});
//Remove an existing tweet
//Another hacky, hacky, hacky, hacky, should be a diff. verb
restapi.post('/sqlite-update', function(req, res){
db.run("UPDATE meta SET value = value + 1 WHERE key = 'postDel'", function(err, row){
if (err) throw err;
})
var payload = req.body;
console.log("UPDATING TWEET: "+payload.tweet +" by USER: "+payload.user + " DETAIL: "+payload.detail)
db.run("UPDATE tweets SET detail == ? WHERE tweet == ? AND user == ? ", payload.detail, payload.tweet, payload.user,
function(err, row){
if (err){
console.error(err);
res.status(500);
}
else {
res.status(200);
res.send("Updated Tweet: "+payload.tweet)
}
res.end();
});
});
restapi.post('/coded-tweet', function(req, res){
var payload = req.body;
var queryString = `SELECT detail FROM tweets WHERE tweet = "${payload.tweet}";`
db.get(queryString,
function(err, row){
if (err){
console.error(err);
res.status(500);
}
else {
res.status(200);
res.send(row)
}
res.end();
}
);
});
restapi.listen(4501);