Decoding Uint8Array to Other Data Types in Effect Typescript Library

  const message = Buffer.from(event.data, 'base64').toString('utf8');
  const messageData = JSON.parse(message)

  // technically you could just do `JSON.parse(event.data.toString())`, but the above is the answer from stack overflow

class MessageV1 extends S.TaggedClass<MessageV1>()('MessageV1', {
  // ...
}) {}

const MessageFromString = S.parseJson(MessageV1);

const StringFromUint8Array = S.transform(S.Uint8ArrayFromSelf, S.String, {
  strict: true,
  encode: str => Buffer.from(str),
  decode: uint8Array => uint8Array.toString()
});

const MessageFromUint8Array = S.compose(StringFromUint8Array, MessageFromString);