utils data.ts

33.33% Statements 4/12

14.28% Branches 1/7

33.33% Functions 1/3

36.36% Lines 4/11

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  import type { Data } from 'ws'
 
function isBufferArray(buffer: unknown): buffer is Buffer[] {
  return Array.isArray(buffer) && buffer.length > 0 && buffer.every(data => data instanceof Buffer)
}
 
export async function prepareWebsocketData(data: Data | Blob): Promise<Uint8Array> | never {
  Iif (typeof data === 'string') {
    return new TextEncoder().encode(data)
  }
 
  if (data instanceof Buffer) {
    return new Uint8Array(data)
  }
 
  Iif (data instanceof ArrayBuffer) {
    return new Uint8Array(data)
  }
 
  Iif (isBufferArray(data)) {
    return new Uint8Array(Buffer.concat(data))
  }
 
  throw new TypeError('unknown websocket data type')
}