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metamask-extension/test/e2e/mock-3box/threebox-mock-server.js

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const http = require('http');
const PORT = 8889;
class ThreeboxMockServer {
constructor() {
this.server = http.createServer(this.requestHandler);
this.database = {};
}
async start() {
return new Promise((resolve, reject) => {
this.server = this.server.listen(PORT);
this.server.once('error', reject);
this.server.once('listening', resolve);
});
}
async stop() {
if (!this.server) {
return;
}
await new Promise((resolve, reject) => {
this.server.close();
this.server.once('error', reject);
this.server.once('close', resolve);
});
}
requestHandler = (request, response) => {
response.setHeader('Content-Type', 'application/json');
if (request.method === 'POST') {
let body = '';
request.on('data', (chunk) => {
body += chunk.toString(); // convert Buffer to string
});
request.on('end', () => {
const { key, data } = JSON.parse(body);
this.database[key] = data;
response.setHeader('Access-Control-Allow-Headers', '*');
response.end('ok');
});
} else if (request.method === 'GET') {
const key = new URL(request.url, 'https://example.org/').searchParams.get(
'key',
);
response.setHeader('Access-Control-Allow-Headers', '*');
response.end(JSON.stringify(this.database[key] || ''));
} else {
response.end('unknown request');
}
};
}
module.exports = ThreeboxMockServer;