/path_to_project/node_modules/openpgp/node_modules/@openpgp/web-stream-tools/lib/util.js:53
      throw new Error('concatUint8Array: Data must be in the form of a Uint8Array');
                ^
Error: Error decrypting message: concatUint8Array: Data must be in the form of a Uint8Array
    at concatUint8Array (/path_to_project/node_modules/openpgp/node_modules/@openpgp/web-stream-tools/lib/util.js:53:17)
    at join (/path_to_project/node_modules/openpgp/node_modules/@openpgp/web-stream-tools/lib/streams.js:93:10)
    at v.data [as readToEnd] (/path_to_project/node_modules/openpgp/node_modules/@openpgp/web-stream-tools/lib/writer.js:35:18)
    at async Object.exports.decrypt (/path_to_project/node_modules/openpgp/src/openpgp.js:366:12)
    at async libraryExample (/path_to_project/example/enrypt.ts:107:31)
    at async /path_to_project/example/enrypt.ts:139:3

import * as openpgp from 'openpgp';

const ExampleKeys = {
  private: `-----BEGIN PGP PRIVATE KEY BLOCK-----
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=GfVY
-----END PGP PRIVATE KEY BLOCK-----`,
  public: `-----BEGIN PGP PUBLIC KEY BLOCK-----
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=wH1v
-----END PGP PUBLIC KEY BLOCK-----`,
};

const libraryExample = async () => {
  // put keys in backtick (``) to avoid errors caused by spaces or tabs
  const publicKeyArmored = ExampleKeys.public;
  const privateKeyArmored = ExampleKeys.private; // encrypted private key

  const publicKey = await openpgp.readKey({ armoredKey: publicKeyArmored });

  const privateKey = await openpgp.readPrivateKey({
    armoredKey: privateKeyArmored,
  });

  const encrypted = await openpgp.encrypt({
    message: await openpgp.createMessage({
      text: 'Hello, World!',
    }), // input as Message object
    encryptionKeys: publicKey,
    signingKeys: privateKey, // optional
    format: 'armored',
  });
  console.log(encrypted); // '-----BEGIN PGP MESSAGE ... END PGP MESSAGE-----'

  const message = await openpgp.readMessage({
    armoredMessage: encrypted, // parse armored message
  });
  const { data: decrypted } = await openpgp.decrypt({
    message,
    verificationKeys: publicKey, // optional
    decryptionKeys: privateKey,
    expectSigned: true,
    format: 'binary',
  });
  console.log(decrypted); // 'Hello, World!'
};

(async () => {
  await libraryExample();
})();