Class MultiPartMessage

samples/01-basic-creation.ts:208–216

  // ToStreamable can return arrays, iterables, nested structures
  {
    class MultiPartMessage {
      constructor(private parts: string[]) {}

      *[Stream.toStreamable](): Generator<string> {
        for (let i = 0; i < this.parts.length; i++) {
          yield `${i > 0 ? '|' : ''}${this.parts[i]}`;
        }
      }
    }

    const readable = Stream.from([new MultiPartMessage(['header', 'body', 'footer'])]);
    const text = await Stream.text(readable);