Website Structure

Frontend-Learner/node_modules/nitropack/dist/presets/aws-lambda/runtime/aws-lambda-streaming.mjs

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+import "#nitro-internal-pollyfills";
+import { useNitroApp } from "nitropack/runtime";
+import {
+  normalizeCookieHeader,
+  normalizeLambdaIncomingHeaders,
+  normalizeLambdaOutgoingHeaders
+} from "nitropack/runtime/internal";
+import { withQuery } from "ufo";
+const nitroApp = useNitroApp();
+export const handler = awslambda.streamifyResponse(
+  async (event, responseStream, context) => {
+    const query = {
+      ...event.queryStringParameters
+    };
+    const url = withQuery(event.rawPath, query);
+    const method = event.requestContext?.http?.method || "get";
+    if ("cookies" in event && event.cookies) {
+      event.headers.cookie = event.cookies.join(";");
+    }
+    const r = await nitroApp.localCall({
+      event,
+      url,
+      context,
+      headers: normalizeLambdaIncomingHeaders(event.headers),
+      method,
+      query,
+      body: event.isBase64Encoded ? Buffer.from(event.body || "", "base64").toString("utf8") : event.body
+    });
+    const isApiGwV2 = "cookies" in event || "rawPath" in event;
+    const cookies = normalizeCookieHeader(r.headers["set-cookie"]);
+    const httpResponseMetadata = {
+      statusCode: r.status,
+      ...cookies.length > 0 && {
+        ...isApiGwV2 ? { cookies } : { multiValueHeaders: { "set-cookie": cookies } }
+      },
+      headers: {
+        ...normalizeLambdaOutgoingHeaders(r.headers, true),
+        "Transfer-Encoding": "chunked"
+      }
+    };
+    const body = r.body ?? new ReadableStream({
+      start(controller) {
+        controller.enqueue("");
+        controller.close();
+      }
+    });
+    const writer = awslambda.HttpResponseStream.from(
+      // @ts-expect-error TODO: IMPORTANT! It should be a Writable according to the aws-lambda types
+      responseStream,
+      httpResponseMetadata
+    );
+    if (!body.getReader) {
+      writer.write(
+        r.body
+        /* TODO */
+      );
+      writer.end();
+      return;
+    }
+    const reader = body.getReader();
+    await streamToNodeStream(reader, responseStream);
+    writer.end();
+  }
+);
+async function streamToNodeStream(reader, writer) {
+  let readResult = await reader.read();
+  while (!readResult.done) {
+    writer.write(readResult.value);
+    readResult = await reader.read();
+  }
+  writer.end();
+}