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app.js
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app.js
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'use strict';
const antidote = require('./antidote_ts_client');
const express = require('express');
const path = require('path');
const cookieParser = require('cookie-parser');
const logger = require('morgan');
const bodyParser = require('body-parser');
const compression = require('compression');
const helmet = require('helmet');
const bytebuffer = require('bytebuffer');
const conf = require('./config');
const app = express();
app.use(helmet());
app.use(compression()); // Compress all routes
app.use(logger('dev'));
app.use(bodyParser.json());
app.use(
bodyParser.urlencoded({
extended: false
})
);
app.use(cookieParser());
app.use('/', express.static(__dirname));
app.use(express.static(path.join(__dirname, 'css')));
app.use(express.static(path.join(__dirname, 'js')));
app.use(express.static(path.join(__dirname, 'img')));
app.use(express.static(path.join(__dirname, 'data')));
// Initialize Antidote clients
var atdClient = antidote.connect(
conf.antidote.port,
conf.antidote.host
);
/* API routing. */
var apiRouter = express.Router();
var setTimestamp = function(timestamp, update_clock) {
if (timestamp && timestamp.data && timestamp.data !== 'null') {
timestamp = bytebuffer.fromBase64(timestamp.data);
console.log(timestamp);
atdClient.monotonicSnapshots = true;
atdClient.setLastCommitTimestamp(timestamp);
atdClient.update_clock = update_clock;
}
};
// Counter API+
apiRouter.route('/count/:counter_id/timestamp').post(async function(req, res, next) {
try {
var counterId = req.params.counter_id;
var timestamp = req.body.timestamp;
var update_clock = req.body.update_clock;
setTimestamp(timestamp, update_clock);
let tx = await atdClient.startTransaction();
let counter = tx.counter(counterId);
let val = await counter.read();
await tx.commit();
if (!update_clock) {
atdClient.update_clock = true;
}
res.json({
status: 'OK',
cont: val,
lastCommitTimestamp: atdClient.getLastCommitTimestamp().toBase64()
});
} catch (error) {
next(error);
}
});
apiRouter.route('/count_sync/:counter_id').post(async function(req, res, next) {
try {
var counterId = req.params.counter_id;
var lastCommitTimestamp = req.body.lastCommitTimestamp;
var updates = req.body.updates;
setTimestamp(lastCommitTimestamp, false);
let tx = await atdClient.startTransaction();
let counter = tx.counter(counterId);
var antidoteUpdates = [];
updates.forEach(element => {
antidoteUpdates.push(counter.increment(element));
});
await tx.update(antidoteUpdates);
await tx.commit();
atdClient.update_clock = true;
res.json({
status: 'OK',
lastCommitTimestamp: atdClient.getLastCommitTimestamp().toBase64()
});
} catch (error) {
next(error);
}
});
apiRouter
.route('/count/:counter_id')
.put(async function(req, res, next) {
try {
var counterId = req.params.counter_id;
var lastCommitTimestamp = req.body.lastCommitTimestamp;
setTimestamp(lastCommitTimestamp, false);
let tx = await atdClient.startTransaction();
let counter = tx.counter(counterId);
await tx.update(counter.increment(1));
await tx.commit();
atdClient.update_clock = true;
res.json({
status: 'OK',
lastCommitTimestamp: atdClient.getLastCommitTimestamp().toBase64()
});
} catch (error) {
next(error);
}
})
.delete(async function(req, res, next) {
try {
var counterId = req.params.counter_id;
var lastCommitTimestamp = req.body.lastCommitTimestamp;
setTimestamp(lastCommitTimestamp, false);
let tx = await atdClient.startTransaction(false);
let counter = tx.counter(counterId);
await tx.update(counter.increment(-1));
await tx.commit();
res.json({
status: 'OK',
lastCommitTimestamp: atdClient.getLastCommitTimestamp().toBase64()
});
} catch (error) {
next(error);
}
});
// Set API
apiRouter.route('/set/:set_id/timestamp').post(async function(req, res, next) {
try {
var setId = req.params.set_id;
var timestamp = req.body.timestamp;
var update_clock = req.body.update_clock;
setTimestamp(timestamp, update_clock);
let tx = await atdClient.startTransaction();
let set = tx.set(setId);
let val = await set.read();
await tx.commit();
if (!update_clock) {
atdClient.update_clock = true;
}
res.json({
status: 'OK',
cont: val,
lastCommitTimestamp: atdClient.getLastCommitTimestamp().toBase64()
});
} catch (error) {
next(error);
}
});
apiRouter.route('/set_sync/:set_id').post(async function(req, res, next) {
try {
var setId = req.params.set_id;
var lastCommitTimestamp = req.body.lastCommitTimestamp;
var updates = req.body.updates;
console.log(updates);
console.log(lastCommitTimestamp);
setTimestamp(lastCommitTimestamp, false);
let tx = await atdClient.startTransaction();
let set = tx.set(setId);
var antidoteUpdates = [];
updates.forEach(element => {
if (element.type === 'add') {
antidoteUpdates.push(set.add(element.value));
} else if (element.type === 'remove') {
antidoteUpdates.push(set.remove(element.value));
}
});
await tx.update(antidoteUpdates);
await tx.commit();
atdClient.update_clock = true;
res.json({
status: 'OK',
lastCommitTimestamp: atdClient.getLastCommitTimestamp().toBase64()
});
} catch (error) {
next(error);
}
});
apiRouter
.route('/set/:set_id')
.put(async function(req, res, next) {
try {
var setId = req.params.set_id;
var lastCommitTimestamp = req.body.lastCommitTimestamp;
setTimestamp(lastCommitTimestamp, false);
var value = req.body.value;
let tx = await atdClient.startTransaction();
let set = tx.set(setId);
await tx.update(set.add(value));
await tx.commit();
atdClient.update_clock = true;
res.json({
status: 'OK',
lastCommitTimestamp: atdClient.getLastCommitTimestamp().toBase64()
});
} catch (error) {
next(error);
}
})
.delete(async function(req, res, next) {
try {
var setId = req.params.set_id;
var lastCommitTimestamp = req.body.lastCommitTimestamp;
setTimestamp(lastCommitTimestamp, false);
var value = req.body.value;
let tx = await atdClient.startTransaction();
let set = tx.set(setId);
await tx.update(set.remove(value));
await tx.commit();
atdClient.update_clock = true;
res.json({
status: 'OK',
lastCommitTimestamp: atdClient.getLastCommitTimestamp().toBase64()
});
} catch (error) {
next(error);
}
});
// MVR API
apiRouter.route('/mvr/:mvr_id/timestamp').post(async function(req, res, next) {
try {
var mvrId = req.params.mvr_id;
var timestamp = req.body.timestamp;
var update_clock = req.body.update_clock;
setTimestamp(timestamp, update_clock);
let tx = await atdClient.startTransaction();
let mvr = tx.multiValueRegister(mvrId);
let val = await mvr.read();
await tx.commit();
if (!update_clock) {
atdClient.update_clock = true;
}
res.json({
status: 'OK',
cont: val,
lastCommitTimestamp: atdClient.getLastCommitTimestamp().toBase64()
});
} catch (error) {
next(error);
}
});
apiRouter.route('/mvr_sync/:mvr_id').post(async function(req, res, next) {
try {
var mvrId = req.params.mvr_id;
var lastCommitTimestamp = req.body.lastCommitTimestamp;
var updates = req.body.updates;
console.log(updates);
console.log(lastCommitTimestamp);
setTimestamp(lastCommitTimestamp, false);
let tx = await atdClient.startTransaction();
let mvr = tx.multiValueRegister(mvrId);
var antidoteUpdates = [];
updates.forEach(element => {
if (element.type === 'assign') {
antidoteUpdates.push(mvr.set(element.value));
} else if (element.type === 'reset') {
antidoteUpdates.push(mvr.set());
}
});
await tx.update(antidoteUpdates);
await tx.commit();
atdClient.update_clock = true;
res.json({
status: 'OK',
lastCommitTimestamp: atdClient.getLastCommitTimestamp().toBase64()
});
} catch (error) {
next(error);
}
});
apiRouter
.route('/mvr/:mvr_id')
.put(async function(req, res, next) {
try {
var mvrId = req.params.mvr_id;
var lastCommitTimestamp = req.body.lastCommitTimestamp;
setTimestamp(lastCommitTimestamp, false);
var value = req.body.value;
let tx = await atdClient.startTransaction();
let mvr = tx.multiValueRegister(mvrId);
await tx.update(mvr.set(value));
await tx.commit();
atdClient.update_clock = true;
res.json({
status: 'OK',
lastCommitTimestamp: atdClient.getLastCommitTimestamp().toBase64()
});
} catch (error) {
next(error);
}
})
.delete(async function(req, res, next) {
try {
var mvrId = req.params.mvr_id;
var lastCommitTimestamp = req.body.lastCommitTimestamp;
setTimestamp(lastCommitTimestamp, false);
let tx = await atdClient.startTransaction();
let mvr = tx.multiValueRegister(mvrId);
await tx.update(mvr.set());
await tx.commit();
atdClient.update_clock = true;
res.json({
status: 'OK',
lastCommitTimestamp: atdClient.getLastCommitTimestamp().toBase64()
});
} catch (error) {
next(error);
}
});
// Map API
/* apiRouter.route('/map/:map_id/timestamp').put(async function(req, res, next) {
try {
var mapId = req.params.map_id;
var timestamp = req.body.timestamp;
var update_clock = req.body.update_clock;
setTheTimestamp(timestamp, update_clock);
let tx = await atdClient.startTransaction();
let map = tx.rrmap(mapId);
let val = await map.read();
await tx.commit();
if (!update_clock) {
atdClient.update_clock = true;
}
res.json({
status: 'OK',
cont: val,
lastCommitTimestamp: atdClient.getLastCommitTimestamp().toBase64()
});
} catch (error) {
next(error);
}
}); */
/* apiRouter.route('/map_sync/:map_id').put(async function(req, res, next) {
try {
var mapId = req.params.map_id;
var lastCommitTimestamp = req.body.lastCommitTimestamp;
var updates = req.body.updates;
console.log(updates);
console.log(lastCommitTimestamp);
setTheTimestamp(lastCommitTimestamp, false);
let tx = await atdClient.startTransaction();
let map = tx.rrmap(mapId);
var antidoteUpdates = [];
// TODO REDO
updates.forEach(element => {
if (element.type === 'assign') {
antidoteUpdates.push(mvr.set(element.value));
} else if (element.type === 'reset') {
antidoteUpdates.push(mvr.set());
}
});
await tx.update(antidoteUpdates);
await tx.commit();
atdClient.update_clock = true;
res.json({
status: 'OK',
lastCommitTimestamp: atdClient.getLastCommitTimestamp().toBase64()
});
} catch (error) {
next(error);
}
}); */
/* apiRouter
.route('/map/:map_id')
.put(async function(req, res, next) {
try {
var mapId = req.params.map_id;
var lastCommitTimestamp = req.body.lastCommitTimestamp;
setTheTimestamp(lastCommitTimestamp, false);
var value = req.body.value;
let tx = await atdClient.startTransaction();
let map = tx.rrmap(mapId);
await tx.update(map.set(value));
await tx.commit();
atdClient.update_clock = true;
res.json({
status: 'OK',
lastCommitTimestamp: atdClient.getLastCommitTimestamp().toBase64()
});
} catch (error) {
next(error);
}
})
.delete(async function(req, res, next) {
try {
var mapId = req.params.map_id;
var lastCommitTimestamp = req.body.lastCommitTimestamp;
setTheTimestamp(lastCommitTimestamp, false);
let tx = await atdClient.startTransaction();
let map = tx.rrmap(mapId);
await tx.update(map.set());
await tx.commit();
atdClient.update_clock = true;
res.json({
status: 'OK',
lastCommitTimestamp: atdClient.getLastCommitTimestamp().toBase64()
});
} catch (error) {
next(error);
}
}); */
/*the below route will have the functionality to respond with a list of requested values to specific keys*/
/* apiRouter.route('/readAll').get(async function(req, res, next) {
try {
console.log('test');
let counter1 = atdClient.counter('a');
let counter2 = atdClient.counter('b');
let r = atdClient.readBatch([counter1, counter2]);
r.then(list => {
res.json({
status: 'OK',
result: list
});
});
} catch (error) {
next(error);
}
}); */
app.use('/api', apiRouter);
module.exports = app;