feat(logger): added improved logger

.gitignore

@@ -125,5 +125,4 @@ dist
 ### Node Patch ###
 # Serverless Webpack directories
 .webpack/
-app/**/*.js
-app/**/*.d.ts
+build

Dockerfile

@@ -1,7 +1,6 @@
 FROM public.ecr.aws/lambda/nodejs:14
 
-COPY .  ${LAMBDA_TASK_ROOT}
-
+COPY ./build  ${LAMBDA_TASK_ROOT}
 RUN npm ci --only=production
 
 # Set the CMD to your handler (could also be done as a parameter override outside of the Dockerfile)

dev-server.js

@@ -1,6 +1,6 @@
 const express = require('express')
 const { existsSync } = require('fs')
-const { handler } = require('./app/index')
+const { handler } = require('./build/src/index')
 const newman = require('newman')
 
 const app = express();
@@ -10,7 +10,7 @@ let server = null;
 
 app.post('/2015-03-31/functions/function/invocations', async (req, res) => {
   try {
-    const body = req.body ? JSON.parse(req.body) : req;
+    const body = req.body ? JSON.parse(req.body) : ExpressToAWSAPIGatewayProxyEventV2(req);
     handler(body, {}).then(result => {
       res.send(result);
     }).catch(error => console.error(error));
@@ -20,7 +20,12 @@ app.post('/2015-03-31/functions/function/invocations', async (req, res) => {
 })
 
 app.all('/api', async (req, res) => {
-  handler(req, {}).then(result => {
+  handler(ExpressToAWSAPIGatewayProxyEventV2(req), {}).then(result => {
+    res.send(result);
+  }).catch(error => console.error(error));
+});
+app.all('/__health', async (req, res) => {
+  handler(ExpressToAWSAPIGatewayProxyEventV2(req), {}).then(result => {
     res.send(result);
   }).catch(error => console.error(error));
 });
@@ -34,8 +39,8 @@ server = app.listen(port, () => {
   if (process.argv[2]) {
     const testFilename = process.argv[3] || 'service-collection.postman_collection.json'
 
-    console.log('Running Newman tests');
     if (!existsSync(`./${testFilename}`)) {
+    console.log('Running Newman tests');
       console.error(`Error: test collection not found
         ./${testFilename}
 
@@ -58,4 +63,86 @@ server = app.listen(port, () => {
       process.exit();
     })
   }
-})
+})
+
+function ExpressToAWSAPIGatewayProxyEventV2(request) {
+  return {
+    "resource": request.path,
+    "path": request.path,
+    "httpMethod": request.method,
+    "headers": {
+      "header1": "value1",
+      "header2": "value2"
+    },
+    "multiValueHeaders": {
+      "header1": [
+        "value1"
+      ],
+      "header2": [
+        "value1",
+        "value2"
+      ]
+    },
+    "queryStringParameters": {
+      "parameter1": "value1",
+      "parameter2": "value"
+    },
+    "multiValueQueryStringParameters": {
+      "parameter1": [
+        "value1",
+        "value2"
+      ],
+      "parameter2": [
+        "value"
+      ]
+    },
+    "requestContext": {
+      "accountId": "123456789012",
+      "apiId": "id",
+      "authorizer": {
+        "claims": null,
+        "scopes": null
+      },
+      "domainName": "id.execute-api.us-east-1.amazonaws.com",
+      "domainPrefix": "id",
+      "extendedRequestId": "request-id",
+      "httpMethod": "GET",
+      "identity": {
+        "accessKey": null,
+        "accountId": null,
+        "caller": null,
+        "cognitoAuthenticationProvider": null,
+        "cognitoAuthenticationType": null,
+        "cognitoIdentityId": null,
+        "cognitoIdentityPoolId": null,
+        "principalOrgId": null,
+        "sourceIp": "IP",
+        "user": null,
+        "userAgent": "user-agent",
+        "userArn": null,
+        "clientCert": {
+          "clientCertPem": "CERT_CONTENT",
+          "subjectDN": "www.example.com",
+          "issuerDN": "Example issuer",
+          "serialNumber": "a1:a1:a1:a1:a1:a1:a1:a1:a1:a1:a1:a1:a1:a1:a1:a1",
+          "validity": {
+            "notBefore": "May 28 12:30:02 2019 GMT",
+            "notAfter": "Aug  5 09:36:04 2021 GMT"
+          }
+        }
+      },
+      "path": "/my/path",
+      "protocol": "HTTP/1.1",
+      "requestId": "id=",
+      "requestTime": "04/Mar/2020:19:15:17 +0000",
+      "requestTimeEpoch": 1583349317135,
+      "resourceId": null,
+      "resourcePath": "/my/path",
+      "stage": "$default"
+    },
+    "pathParameters": null,
+    "stageVariables": null,
+    "body": "Hello from Lambda!",
+    "isBase64Encoded": false
+  }
+}

package.json

@@ -24,7 +24,8 @@
   "scripts": {
     "start": "tsc --watch --preserveWatchOutput & nodemon dev-server.js -e js -w ./app",
     "build": "tsc",
-    "test": "find app -wholename '*.d.ts' -delete && find app -wholename '*.js' -delete && jest",
+    "build:image": "./scripts/gen-build",
+    "test": "jest",
     "test:watch": "npm t -- --watch",
     "test:newman": "npm run build && node dev-server.js --test",
     "lint": "tslint --fix -p ./tsconfig.json",
@@ -33,7 +34,7 @@
   },
   "husky": {
     "hooks": {
-      "pre-commit": "tsdx lint"
+      "pre-commit": "npm run lint && npm run prettier"
     }
   },
   "prettier": {

scripts/gen-build

@@ -0,0 +1,11 @@
+#!/bin/bash
+
+rm -rf ./build
+npm run build
+cp ./package-lock.json ./build
+cd ./build
+mv src app
+../scripts/gen-prod-package-json package.json package.json
+find . -wholename '*.d.ts' -delete
+find . -wholename '*.test.js' -delete
+cd ..

scripts/gen-prod-package-json

@@ -0,0 +1,22 @@
+#!/bin/env node
+
+const { readFileSync, writeFileSync } = require("fs");
+
+const packageString = readFileSync(process.argv[2]);
+
+const { name, version, dependencies, engines, keywords, repository } = JSON.parse(packageString);
+
+const prodJSON = { 
+  name, 
+  version, 
+  dependencies,
+  engines,
+  keywords,
+  repository
+};
+
+
+console.log(prodJSON);
+if (process.argv[3]) {
+  writeFileSync(process.argv[3], JSON.stringify(prodJSON, null, '  '));
+}

app/index.test.ts → src/index.test.ts

@@ -90,8 +90,10 @@ describe('Index Handler', () => {
     const response = await handler(mockRequest(), mockContext());
     expect(response).toStrictEqual({
       body: JSON.stringify({
-        hello: 'world',
-        foo: 'bar',
+        version,
+        name,
+        event: mockRequest(),
+        context: mockContext(),
       }),
       headers: {
         'content-type': 'text/json',

app/index.ts → src/index.ts

@@ -30,8 +30,10 @@ export const handler = async (
       'content-type': 'text/json',
     },
     body: JSON.stringify({
-      hello: 'world',
-      foo: 'bar',
+      version: pkg.version,
+      name: pkg.name,
+      event,
+      context: _context,
     }),
   };
 };

app/lib/logger.ts → src/lib/logger.ts

@@ -32,9 +32,7 @@ const format = winston.format.combine(
   )
 );
 
-const transports = [
-  new winston.transports.Console()
-];
+const transports = [new winston.transports.Console()];
 
 const Logger = winston.createLogger({
   level: level(),

tsconfig.json

@@ -11,8 +11,8 @@
     // "declarationMap": true,                /* Generates a sourcemap for each corresponding '.d.ts' file. */
     // "sourceMap": true,                     /* Generates corresponding '.map' file. */
     // "outFile": "./",                       /* Concatenate and emit output to single file. */
-    // "outDir": "app",                       /* Redirect output structure to the directory. */
-    // "rootDir": "src",                      /* Specify the root directory of input files. Use to control the output directory structure with --outDir. */
+    "outDir": "build",                       /* Redirect output structure to the directory. */
+    // "rootDir": ".",                      /* Specify the root directory of input files. Use to control the output directory structure with --outDir. */
     // "composite": true,                     /* Enable project compilation */
     // "removeComments": true,                /* Do not emit comments to output. */
     // "noEmit": true,                        /* Do not emit outputs. */