Translate response headers

lib/utils.js

@@ -0,0 +1,15 @@
+'use strict';
+
+
+/**
+ * Convert Map to an Object so it can be converted to JSON.
+ *
+ * @param {Map} map - Map object to convert.
+ * @return {Object} Converted object.
+ */
+module.exports.convertMapToObject = map => {
+  const obj = {};
+  for (const [key, val] of map.entries())
+    obj[key] = val;
+  return obj;
+};

translators/aws-proxy-translator.js

@@ -1,5 +1,7 @@
 'use strict';
 
+const { convertMapToObject } = require('../lib/utils');
+
 
 /**
  * Return middleware that translates the request and response from/to
@@ -15,7 +17,6 @@ function AwsProxyTranslator(options = {}) {
   } = options;
 
   // TODO: translate the request
-  // TODO: translate the response headers
   return async (ctx, next) => {
     ctx.headers = new Map();
 
@@ -24,6 +25,7 @@ function AwsProxyTranslator(options = {}) {
     const response = {
       isBase64Encoded,
       statusCode: ctx.status || 500,
+      headers: convertMapToObject(ctx.headers),
       body: JSON.stringify(ctx.body)
     };
     return response;