npm install sonic_differThis is the server part of Sonic Project.
1）Node Version > 7.0
2）install sonic_differ module
``Node.js`
npm install sonic_differ --save
3）import sonic_differ module
`Node.js`
const sonic_differ = require('sonic_differ');
4）Intercept and process data from server in Sonic mode.
i）First, create a Sonic cache struct like following code.
`Node.js`
let sonic = {
buffer: [],
write: function (chunk, encoding) {
let buffer = chunk;
let ecode = encoding || 'utf8';
if (!Buffer.isBuffer(chunk)) {
buffer = new Buffer(chunk, ecode);
}
sonic.buffer.push(buffer);
}
};
ii）Second, Intercept the data from server and use sonic_differ module to process
`Node.js``
response.on('data', (chunk, encoding) => {
sonic.write(chunk, encoding)
});
response.on('end', () => {
let result = differ(ctx, Buffer.concat(sonic.buffer));
sonic.buffer = [];
if (result.cache) {
//304 Not Modified, return nothing.
return ''
} else {
//other Sonic status.
return result.data
}
});