lambda-live-debugger
Version:
Debug Lambda functions locally like it is running in the cloud
26 lines (25 loc) • 1.14 kB
JavaScript
import { EventStreamCodec, MessageDecoderStream, MessageEncoderStream, SmithyMessageDecoderStream, SmithyMessageEncoderStream, } from "@smithy/eventstream-codec";
import { getChunkedStream } from "./getChunkedStream";
import { getMessageUnmarshaller } from "./getUnmarshalledStream";
export class EventStreamMarshaller {
eventStreamCodec;
utfEncoder;
constructor({ utf8Encoder, utf8Decoder }) {
this.eventStreamCodec = new EventStreamCodec(utf8Encoder, utf8Decoder);
this.utfEncoder = utf8Encoder;
}
deserialize(body, deserializer) {
const inputStream = getChunkedStream(body);
return new SmithyMessageDecoderStream({
messageStream: new MessageDecoderStream({ inputStream, decoder: this.eventStreamCodec }),
deserializer: getMessageUnmarshaller(deserializer, this.utfEncoder),
});
}
serialize(inputStream, serializer) {
return new MessageEncoderStream({
messageStream: new SmithyMessageEncoderStream({ inputStream, serializer }),
encoder: this.eventStreamCodec,
includeEndFrame: true,
});
}
}