feat!: transitioning to ESM

.prettierrc.js

@@ -1,5 +1,7 @@
-module.exports = {
+/** @type {import("prettier").Config} */
+
+export const config = {
   singleQuote: true,
-  arrowParens: 'always',
-  trailingComma: 'none'
+  arrowParens: "always",
+  trailingComma: "none",
 };

README.md

@@ -33,20 +33,20 @@ Visit [https://bbc.github.io/sqs-consumer/](https://bbc.github.io/sqs-consumer/)
 ## Usage
 
 ```js
-import { Consumer } from 'sqs-consumer';
+import { Consumer } from "sqs-consumer";
 
 const app = Consumer.create({
-  queueUrl: 'https://sqs.eu-west-1.amazonaws.com/account-id/queue-name',
+  queueUrl: "https://sqs.eu-west-1.amazonaws.com/account-id/queue-name",
   handleMessage: async (message) => {
     // do some work with `message`
-  }
+  },
 });
 
-app.on('error', (err) => {
+app.on("error", (err) => {
   console.error(err.message);
 });
 
-app.on('processing_error', (err) => {
+app.on("processing_error", (err) => {
   console.error(err.message);
 });
 
@@ -75,32 +75,32 @@ export AWS_ACCESS_KEY_ID=...
 If you need to specify your credentials manually, you can use a pre-configured instance of the [SQS Client](https://docs.aws.amazon.com/AWSJavaScriptSDK/v3/latest/clients/client-sqs/classes/sqsclient.html) client.
 
 ```js
-import { Consumer } from 'sqs-consumer';
-import { SQSClient } from '@aws-sdk/client-sqs';
+import { Consumer } from "sqs-consumer";
+import { SQSClient } from "@aws-sdk/client-sqs";
 
 const app = Consumer.create({
-  queueUrl: 'https://sqs.eu-west-1.amazonaws.com/account-id/queue-name',
+  queueUrl: "https://sqs.eu-west-1.amazonaws.com/account-id/queue-name",
   handleMessage: async (message) => {
     // ...
   },
   sqs: new SQSClient({
-    region: 'my-region',
+    region: "my-region",
     credentials: {
-      accessKeyId: 'yourAccessKey',
-      secretAccessKey: 'yourSecret'
-    }
-  })
+      accessKeyId: "yourAccessKey",
+      secretAccessKey: "yourSecret",
+    },
+  }),
 });
 
-app.on('error', (err) => {
+app.on("error", (err) => {
   console.error(err.message);
 });
 
-app.on('processing_error', (err) => {
+app.on("processing_error", (err) => {
   console.error(err.message);
 });
 
-app.on('timeout_error', (err) => {
+app.on("timeout_error", (err) => {
   console.error(err.message);
 });
 

package.json

@@ -2,6 +2,7 @@
   "name": "sqs-consumer",
   "version": "9.1.0",
   "description": "Build SQS-based Node applications without the boilerplate",
+  "type": "module",
   "main": "dist/index.js",
   "types": "dist/index.d.ts",
   "engines": {
@@ -15,7 +16,7 @@
     "test:unit": "mocha --recursive --full-trace --exit",
     "pretest:integration:init": "npm run build",
     "test:integration:init": "sh ./test/scripts/initIntTests.sh",
-    "test:integration": "npm run test:integration:init && cucumber-js --config ./test/config/cucumber.js",
+    "test:integration": "npm run test:integration:init && cucumber-js --config ./test/config/cucumber.mjs",
     "test": "npm run test:unit && npm run test:integration",
     "coverage": "c8 mocha && c8 report --reporter=html && c8 report --reporter=json-summary",
     "lcov": "c8 mocha && c8 report --reporter=lcov",
@@ -140,13 +141,13 @@
     "@types/node": "^20.11.25",
     "@types/sinon": "^17.0.3",
     "c8": "^9.1.0",
-    "chai": "^4.3.10",
+    "chai": "5.1.0",
     "conventional-changelog-conventionalcommits": "^7.0.2",
     "eslint": "^8.57.0",
     "eslint-config-iplayer": "^9.2.0",
     "eslint-config-prettier": "^9.1.0",
     "mocha": "^10.3.0",
-    "p-event": "^4.2.0",
+    "p-event": "6.0.1",
     "prettier": "^3.2.5",
     "semantic-release": "^23.0.2",
     "sinon": "^17.0.1",
@@ -163,8 +164,13 @@
     "@aws-sdk/client-sqs": "^3.529.1"
   },
   "mocha": {
+    "extensions": [
+      "ts"
+    ],
     "spec": "test/tests/**/**/*.test.ts",
-    "require": "ts-node/register"
+    "node-option": [
+      "loader=ts-node/esm"
+    ]
   },
   "c8": {
     "include": [
@@ -173,9 +179,6 @@
     "extension": [
       ".ts"
     ],
-    "require": [
-      "ts-node/register"
-    ],
     "sourceMap": true,
     "instrument": true
   },

src/bind.ts

@@ -4,7 +4,7 @@
  * @param value the value of the property
  */
 function isMethod(propertyName: string, value: any): boolean {
-  return propertyName !== 'constructor' && typeof value === 'function';
+  return propertyName !== "constructor" && typeof value === "function";
 }
 
 /**