use yarn to create deployment artifact

.gitignore

@@ -37,6 +37,7 @@ build/Release
 
 # Dependency directories
 node_modules/
+prod_node_modules/
 jspm_packages/
 
 # TypeScript v1 declaration files

packages/sls-random/serverless.yml

@@ -4,10 +4,7 @@ plugins:
   - serverless-plugin-scripts
 
 package:
-  exclude:
-    - ./**
-    - '!dist/**'
-    - '!node_modules/**'
+  artifact: dist/artifact.zip
 
 provider:
   name: aws
@@ -31,11 +28,11 @@ provider:
 custom:
   scripts:
     hooks:
-      'before:deploy:createDeploymentArtifacts': yarn run build
+      'before:deploy:createDeploymentArtifacts': yarn run build && ../../scripts/sls-package.sh
 
 functions:
 
   fetchRandomNumber:
-    handler: dist/index.fetchRandomNumber
+    handler: index.fetchRandomNumber
     events:
       - http: GET number

scripts/sls-package.sh

@@ -0,0 +1,28 @@
+#! /bin/sh
+
+# this is assumed to run from a sls-package, e.g. at packages/sls-random
+# see https://github.com/yarnpkg/yarn/issues/6293#issuecomment-414779476
+cwd=$PWD
+
+# install production deps for the entire workspace
+cd ../..
+yarn install --production
+cd $cwd
+
+# dupe node_modules
+mkdir -p dist
+rm -fr dist/node_modules
+cp -RL node_modules dist/node_modules
+
+# cleanup .bin
+rm -rf dist/node_modules/.bin
+
+ # back to development
+cd ../../
+yarn install
+cd $cwd
+
+# prepare artifact
+cd dist
+zip -r artifact.zip *
+cd ..

tsconfig.settings.json

@@ -2,21 +2,16 @@
   "compilerOptions": {
     "module": "commonjs",
     "target": "es6",
-    "lib": [ 
-      "es6"
-    ],
+    "lib": ["es6"],
     "moduleResolution": "node",
 
     "rootDir": "./",
     "baseUrl": "packages/",
     "paths": {
       "@org/*": ["./*/src"]
     },
-    "typeRoots": [
-      "./node_modules/@types",
-      "./packages/types"
-    ],
-
+    "typeRoots": ["./node_modules/@types", "./packages/types"],
+
     "composite": true,
     "declaration": true,
     "declarationMap": true,
@@ -34,9 +29,5 @@
     "resolveJsonModule": true,
     "esModuleInterop": true
   },
-  "exclude": [
-    "**/dist",
-    "**/node_modules",
-    "**/test"
-   ]
-}
+  "exclude": ["**/dist", "**/node_modules", "**/prod_node_modules", "**/test"]
+}

yarn.lock

@@ -795,8 +795,8 @@ aws-lambda@^0.1.2:
     dotenv "^0.4.0"
 
 aws-sdk@^*, aws-sdk@^2.228.0:
-  version "2.297.0"
-  resolved "https://registry.yarnpkg.com/aws-sdk/-/aws-sdk-2.297.0.tgz#2fe085076f6fd488285ef7cfaf883fdaa47acee9"
+  version "2.298.0"
+  resolved "https://registry.yarnpkg.com/aws-sdk/-/aws-sdk-2.298.0.tgz#53259d06ca3bcde69d11f3b24b1c05088939c67f"
   dependencies:
     buffer "4.9.1"
     events "1.1.1"