fix(adapter): run error when without header x-forwarded-protocol

Author: helbing

packages/adapter/README.md

@@ -34,19 +34,7 @@ export default defineConfig({
 })
 ```
 
-## Architecture
-
-After `astro build`, you will get two directories, `dist/server` and `dist/client`. You should deploy them with the following architecture:
-
-### lambda
-
-![lambda](https://raw.githubusercontent.com/helbing/astrojs-aws/main/docs/static/architecture/lambda.png)
-
-### edge
-
-![edge](https://raw.githubusercontent.com/helbing/astrojs-aws/main/docs/static/architecture/edge.png)
-
-Recommended to use this [AWS Constructs Library](https://github.com/helbing/astrojs-aws/tree/main/packages/constructs) to deploy.
+Recommended to use the [AWS Constructs Library](https://github.com/helbing/astrojs-aws/tree/main/packages/constructs) to deploy.
 
 ## Configuration
 

packages/adapter/src/handlers/edge.test.ts

@@ -91,6 +91,32 @@ describe("Test transformRequest", () => {
     expect(transformRequest(cfRequest)).toMatchObject(expectRequest)
   })
 
+  test("Expect transform success without header x-forwarded-protocol", () => {
+    const cfRequest: CloudFrontRequest = {
+      uri: "/",
+      method: "GET",
+      headers: {
+        "x-forwarded-host": [
+          {
+            key: "x-forwarded-host",
+            value: "example.com",
+          },
+        ],
+      },
+      querystring: "",
+      body: undefined,
+      clientIp: "",
+    }
+    const expectRequest = new Request("https://example.com", {
+      method: "GET",
+      headers: {
+        "x-forwarded-host": "example.com",
+      },
+    })
+
+    expect(transformRequest(cfRequest)).toMatchObject(expectRequest)
+  })
+
   test("Expect transform success with querystring", () => {
     const cfRequest: CloudFrontRequest = {
       uri: "/",

packages/adapter/src/handlers/edge.ts

@@ -67,8 +67,9 @@ export function transformRequestHeaders(headers: CloudFrontHeaders): Headers {
 export function transformRequest(cfRequest: CloudFrontRequest): Request {
   const { uri, method, headers, querystring, body } = cfRequest
   const requestHeaders = transformRequestHeaders(headers)
-  const scheme = headers["x-forwarded-protocol"][0].value || "https"
-  const host = (headers["x-forwarded-host"] || headers["host"])[0].value
+  const scheme = requestHeaders.get("x-forwarded-protocol") ?? "https"
+  const host =
+    requestHeaders.get("x-forwarded-host") || requestHeaders.get("host")
   const qs = querystring.length > 0 ? `?${querystring}` : ""
   const url = new URL(`${uri}${qs}`, `${scheme}://${host}`)