如何在Swift中将protobuf对象转换为ByteArray并使用Base64 URL_SAFE进行编码？

Question

In Android, I could convert an object to ByteArray and then encode it to Base64 (URL_SAFE) as per code below

    val myByteArrayObject = protobufObject.toByteArray()
    val meEncodedObject = android.util.Base64.encodeToString.encodeToString(
          myByteArrayObject, android.util.Base64.DEFAULT).trim()

How could I achieve that in Swift?

Answer 1

Found the answer.

do {
    let protobufSerialized = try protobufObject.serializedData()
    let protobufEncoded = protobufSerialized.base64EncodedString()

    // Do whatever need to be done with the protobufEncoded
} catch {  }

The main hidden function that is hard to find is serializedData() that exist on SwiftProtobuf.Message