fix: fix error when request has no body pass

Signed-off-by: seven <zilisheng1996@gmail.com>

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@geek-fun/serverless-adapter",
-  "version": "0.0.1",
+  "version": "0.0.2",
   "description": "Adapter for web frame work express, koa, springboot to run in serverless function as backend of apigateway cross multi cloud provider like aliyun, huawei",
   "homepage": "https://www.geekfun.club/",
   "main": "dist/src/index.js",

src/context.ts

@@ -4,13 +4,22 @@ import url from 'node:url';
 import ServerlessResponse from './serverlessResponse';
 import { debug } from './common';
 
-// eslint-disable-next-line @typescript-eslint/no-unused-vars
+// const requestRemoteAddress = (event) => {
+//   if (event.version === '2.0') {
+//     return event.requestContext.http.sourceIp;
+//   }
+//   return event.requestContext.identity.sourceIp;
+// };
+
 export const constructFrameworkContext = (event: Event, context: Context) => {
   debug(`constructFrameworkContext: ${JSON.stringify({ event, context })}`);
   const request = new ServerlessRequest({
     method: event.httpMethod,
     headers: event.headers,
-    body: Buffer.from(event.body, event.isBase64Encoded ? 'base64' : 'utf8'),
+    body:
+      event.body !== undefined && event.body !== null
+        ? Buffer.from(event.body, event.isBase64Encoded ? 'base64' : 'utf8')
+        : undefined,
     remoteAddress: '',
     url: url.format({
       pathname: event.path,
@@ -19,5 +28,6 @@ export const constructFrameworkContext = (event: Event, context: Context) => {
     isBase64Encoded: event.isBase64Encoded,
   });
   const response = new ServerlessResponse(request);
+
   return { request, response };
 };

src/serverlessRequest.ts

@@ -7,7 +7,7 @@ interface ServerlessRequestOptions {
   method: string;
   url: string;
   headers: { [key: string]: string | number };
-  body: Buffer | string;
+  body: Buffer | string | undefined;
   remoteAddress: string;
   isBase64Encoded: boolean;
 }
@@ -17,7 +17,7 @@ const NO_OP: (...args: unknown[]) => unknown = () => void 0;
 export default class ServerlessRequest extends IncomingMessage {
   ip: string;
 
-  body: Buffer | string;
+  body: Buffer | string | undefined;
 
   isBase64Encoded: boolean;
 
@@ -41,7 +41,7 @@ export default class ServerlessRequest extends IncomingMessage {
     const combinedHeaders = Object.fromEntries(
       Object.entries({
         ...headers,
-        'content-length': Buffer.byteLength(body).toString(),
+        'content-length': Buffer.byteLength(body ?? '').toString(),
       }).map(([key, value]) => [key.toLowerCase(), value]),
     );
 

src/types.ts

@@ -7,12 +7,14 @@ type AliyunApiGatewayEvent = {
   headers: Record<string, string>;
   queryParameters: Record<string, string>;
   pathParameters: Record<string, string>;
-  body: string;
+  body?: string;
   isBase64Encoded: boolean;
 };
 
 type AliyunApiGatewayContext = {
   requestId: string;
+  region: string;
+  accountId: string;
   credentials: {
     accessKeyId: string;
     accessKeySecret: string;
@@ -29,9 +31,9 @@ type AliyunApiGatewayContext = {
     name: string;
     logProject: string;
     logStore: string;
+    qualifier: string;
+    versionId: string;
   };
-  region: string;
-  accountId: string;
   tracing: {
     spanContext: string;
     jaegerEndpoint: string;
@@ -48,8 +50,8 @@ type AliyunApiGatewayContext = {
 };
 
 export type Event = AliyunApiGatewayEvent;
-
 export type Context = AliyunApiGatewayContext;
+
 export type ServerlessAdapter = (app: Express) => (
   event: Event,
   context: Context,

tests/fixtures/fcContext.ts

@@ -0,0 +1,62 @@
+import { Context, Event } from '../../src/types';
+
+export const defaultEvent: Event = {
+  path: '/api/test',
+  httpMethod: 'GET',
+  headers: {
+    'Content-Type': 'application/json',
+    Authorization: 'Bearer sampleToken',
+  },
+  queryParameters: {
+    param1: 'value1',
+    param2: 'value2',
+  },
+  pathParameters: {
+    id: '123',
+  },
+  body: '{"key":"value"}',
+  isBase64Encoded: false,
+};
+export const defaultContext: Context = {
+  requestId: 'sample-request-id',
+  credentials: {
+    accessKeyId: 'sample-access-key-id',
+    accessKeySecret: 'sample-access-key-secret',
+    securityToken: 'sample-security-token',
+  },
+  function: {
+    name: 'sample-function-name',
+    handler: 'sample-function-handler',
+    memory: 128,
+    timeout: 30,
+    initializer: 'sample-initializer',
+  },
+  service: {
+    name: 'sample-service-name',
+    logProject: 'sample-log-project',
+    logStore: 'sample-log-store',
+    qualifier: 'sample-qualifier',
+    versionId: 'sample-version-id',
+  },
+  region: 'sample-region',
+  accountId: 'sample-account-id',
+  tracing: {
+    spanContext: 'sample-span-context',
+    jaegerEndpoint: 'sample-jaeger-endpoint',
+    spanBaggages: {
+      baggage1: 'value1',
+      baggage2: 'value2',
+    },
+    parseOpenTracingBaggages: () => ({
+      baggage1: 'value1',
+      baggage2: 'value2',
+    }),
+  },
+  logger: {
+    debug: (message: string) => console.debug(message),
+    info: (message: string) => console.info(message),
+    warn: (message: string) => console.warn(message),
+    error: (message: string) => console.error(message),
+    log: (message: string) => console.log(message),
+  },
+};