feat(lambda-edge): add getConnInfo helper for Lambda@Edge

src/adapter/lambda-edge/conninfo.test.ts

@@ -0,0 +1,27 @@
+import { Context } from '../../context'
+import type { CloudFrontEdgeEvent } from './handler'
+import { getConnInfo } from './conninfo'
+
+describe('getConnInfo', () => {
+ it('Should info is valid', () => {
+ const clientIp = Math.random().toString()
+ const env = {
+ event: {
+ Records: [
+ {
+ cf: {
+ request: {
+ clientIp,
+ },
+ },
+ },
+ ],
+ } as CloudFrontEdgeEvent,
+ }
+
+ const c = new Context(new Request('http://localhost/'), { env })
+ const info = getConnInfo(c)
+
+ expect(info.remote.address).toBe(clientIp)
+ })
+})

src/adapter/lambda-edge/conninfo.ts

@@ -0,0 +1,15 @@
+import type { GetConnInfo } from '../../helper/conninfo'
+import type { CloudFrontEdgeEvent } from './handler'
+import type { Context } from '../../context'
+
+type Env = {
+ Bindings: {
+ event: CloudFrontEdgeEvent
+ }
+}
+
+export const getConnInfo: GetConnInfo = (c: Context<Env>) => ({
+ remote: {
+ address: c.env.event.Records[0].cf.request.clientIp,
+ },
+})

src/adapter/lambda-edge/index.ts

@@ -4,6 +4,7 @@
  */
 
 export { handle } from './handler'
+export { getConnInfo } from './conninfo'
 export type {
  Callback,
  CloudFrontConfig,