Function encodePacketToBinary

packages/engine.io-parser/lib/encodePacket.ts:32–46

(
  packet: Packet,
  callback: (encodedPacket: RawData) => void,
)

let TEXT_ENCODER;

export function encodePacketToBinary(
  packet: Packet,
  callback: (encodedPacket: RawData) => void,
) {
  if (packet.data instanceof ArrayBuffer || ArrayBuffer.isView(packet.data)) {
    return callback(toBuffer(packet.data, false));
  }
  encodePacket(packet, true, (encoded) => {
    if (!TEXT_ENCODER) {
      // lazily created for compatibility with Node.js 10
      TEXT_ENCODER = new TextEncoder();
    }
    callback(TEXT_ENCODER.encode(encoded));
  });
}