Fix Optional Typing for Raw Body

Author: jehernandezr

lib/proxyIntegration.ts

@@ -9,7 +9,7 @@ type ProxyIntegrationParams = {
 }
 
 type ProxyIntegrationBody<T = unknown> = {
-  rawBody: T
+  rawBody?: T
   body: T
 }
 
@@ -97,10 +97,10 @@ export const process: ProcessMethod<ProxyIntegrationConfig, APIGatewayProxyEvent
       return null
     }
 
-    const headers: APIGatewayProxyResult['headers'] = proxyIntegrationConfig.cors ? addCorsHeaders(proxyIntegrationConfig.cors, event) : {};
+    const headers: (APIGatewayProxyResult['headers'] & {}) = proxyIntegrationConfig.cors ? addCorsHeaders(proxyIntegrationConfig.cors, event) : {};
 
     if (event.httpMethod === 'OPTIONS') {
-      Object.assign(headers, proxyIntegrationConfig.defaultHeaders)
+      Object.assign(headers, proxyIntegrationConfig.defaultHeaders ?? {})
       return Promise.resolve({
         statusCode: 200,
         headers,
@@ -155,7 +155,7 @@ export const process: ProcessMethod<ProxyIntegrationConfig, APIGatewayProxyEvent
 
         return convertError(error, errorMapping, headers)
       })
-    } catch (error) {
+    } catch (error: any) {
       console.log('Error while evaluating matching action handler', error)
 
       if (proxyIntegrationConfig.onError) {

package.json

@@ -6,6 +6,7 @@
   "types": "index.d.ts",
   "scripts": {
     "prepare": "npm run build",
+    "build:types": "tsc --emitDeclarationOnly",
     "test": "yarn clean && jest --coverage",
     "build": "tsc",
     "clean": "rm -f lib/*.d.ts lib/*.js index.js index.d.ts"

yarn.lock

@@ -1327,6 +1327,11 @@ fs.realpath@^1.0.0:
   resolved "https://registry.npmjs.org/fs.realpath/-/fs.realpath-1.0.0.tgz"
   integrity sha512-OO0pH2lK6a0hZnAdau5ItzHPI6pUlvI7jMVnxUQRtw4owF2wk8lOSabtGDCTP4Ggrg2MbGnWO9X8K1t4+fGMDw==
 
+fsevents@^2.1.2:
+  version "2.3.2"
+  resolved "https://registry.npmjs.org/fsevents/-/fsevents-2.3.2.tgz"
+  integrity sha512-xiqMQR4xAeHTuB9uWm+fFRcIOgKBMiOBP+eXiyT7jsgVCq1bkVygt00oASowB7EdtpOHaaPgKt812P9ab+DDKA==
+
 function-bind@^1.1.2:
   version "1.1.2"
   resolved "https://registry.npmjs.org/function-bind/-/function-bind-1.1.2.tgz"