Initial

resources/app/node_modules/@smithy/eventstream-serde-universal/dist-es/getUnmarshalledStream.js

@@ -0,0 +1,47 @@
+export function getUnmarshalledStream(source, options) {
+    const messageUnmarshaller = getMessageUnmarshaller(options.deserializer, options.toUtf8);
+    return {
+        [Symbol.asyncIterator]: async function* () {
+            for await (const chunk of source) {
+                const message = options.eventStreamCodec.decode(chunk);
+                const type = await messageUnmarshaller(message);
+                if (type === undefined)
+                    continue;
+                yield type;
+            }
+        },
+    };
+}
+export function getMessageUnmarshaller(deserializer, toUtf8) {
+    return async function (message) {
+        const { value: messageType } = message.headers[":message-type"];
+        if (messageType === "error") {
+            const unmodeledError = new Error(message.headers[":error-message"].value || "UnknownError");
+            unmodeledError.name = message.headers[":error-code"].value;
+            throw unmodeledError;
+        }
+        else if (messageType === "exception") {
+            const code = message.headers[":exception-type"].value;
+            const exception = { [code]: message };
+            const deserializedException = await deserializer(exception);
+            if (deserializedException.$unknown) {
+                const error = new Error(toUtf8(message.body));
+                error.name = code;
+                throw error;
+            }
+            throw deserializedException[code];
+        }
+        else if (messageType === "event") {
+            const event = {
+                [message.headers[":event-type"].value]: message,
+            };
+            const deserialized = await deserializer(event);
+            if (deserialized.$unknown)
+                return;
+            return deserialized;
+        }
+        else {
+            throw Error(`Unrecognizable event type: ${message.headers[":event-type"].value}`);
+        }
+    };
+}