function getKeyPromise()

in packages/sha1-browser/src/ie11Sha1.ts [65:86]

• 20 lines of code
• 2 McCabe index (conditional complexity)

function getKeyPromise(secret: SourceData): Promise<Key> {
  return new Promise((resolve, reject) => {
    const keyOperation = (locateWindow() as MsWindow).msCrypto.subtle.importKey(
      "raw",
      toArrayBufferView(secret),
      SHA_1_HMAC_ALGO,
      false,
      ["sign"]
    );

    keyOperation.oncomplete = () => {
      if (keyOperation.result) {
        resolve(keyOperation.result);
      }

      reject(new Error("ImportKey completed without importing key."));
    };
    keyOperation.onerror = () => {
      reject(new Error("ImportKey failed to import key."));
    };
  });
}