function tryPort()

in src/http/httpProxy.ts [144:169]

• 19 lines of code
• 4 McCabe index (conditional complexity)

    function tryPort(port: number) {
        if (port > maxPort) {
            // If we've reached the maximum port, throw an error
            throw new AzFuncSystemError(
                `No available ports found between ${minPort} and ${maxPort}. To enable HTTP streaming, please open a port in this range.`
            );
        }

        server.once('error', () => {
            // If the port is unavailable, increment and try the next one
            tryPort(port + 1);
        });

        // If the port is available, return it
        server.once('listening', () => {
            const address = server.address();
            if (address !== null && typeof address === 'object') {
                port = address.port;
                server.close();
                callback(port);
            }
        });

        // Try binding to the given port
        server.listen(port);
    }