thumphries · December 1, 2020 03:10 · Dec 1, 2020 · Dec 1, 2020 · Dec 1, 2020 · Dec 1, 2020
diff --git a/README.md b/README.md
@@ -2,7 +2,19 @@
 
 Repro attempt for https://github.com/apollographql/federation/issues/211
 
-Usage:
+## Summary
+
+```
+@apollo/gateway -> @apollo-server-lambda -> serverless-webpack
+```
+
+Expecting a single .js bundle that works when required from Node 12.x.
+
+Getting a single .js bundle that contains some busted webpacky bits:
+- requiring util (?)
+- reading local .wasm files at runtime
+
+## Usage
 
 ```sh
 npm install
@@ -18,3 +30,30 @@ Should spit out a module resolution error, like:
 Thrown:
 Error: Cannot find module 'util'
 ```
+
+## Getting past the require('util') error
+
+If you poke `node_modules/@apollo/query-planner-wasm/`, changing line 4:
+
+```
+const { TextDecoder } = require(String.raw`util`);
+```
+
+... replacing with:
+
+```
+const { TextDecoder } = require('util');
+```
+
+... and rebuild, unzip, run again, you get the desired error:
+
+```
+
+```
+
+## Guessing about wasm-pack
+
+It seems like this package is bundled with `wasm-pack -t nodejs`.
+
+This use case might expect `-t bundler` and some kind of `.wasm$`
+webpack loader?
diff --git a/.gitignore b/.gitignore
@@ -0,0 +1,2 @@
+build/
+node_modules/
diff --git a/README.md b/README.md
@@ -1 +1,20 @@
-#
+# `@apollographql/federation#211`
+
+Repro attempt for https://github.com/apollographql/federation/issues/211
+
+Usage:
+
+```sh
+npm install
+npm run package
+cd build
+unzip lambda.zip
+node -e "require('.').main()"
+```
+
+Should spit out a module resolution error, like:
+
+```
+Thrown:
+Error: Cannot find module 'util'
+```
diff --git a/index.js b/index.js
@@ -0,0 +1,18 @@
+import { ApolloGateway } from '@apollo/gateway';
+import { ApolloServer } from 'apollo-server-lambda';
+
+const gateway = new ApolloGateway({
+  serviceList: [{name: 'accounts', url: 'https://accounts.fake.com'}],
+});
+
+const server = new ApolloServer({
+  gateway,
+  subscriptions: false,
+});
+
+const handler = server.createHandler();
+
+export const main = async (event, context) => {
+  return handler(event, context);
+};
+
diff --git a/package-lock.json b/package-lock.json
diff --git a/package.json b/package.json
@@ -0,0 +1,21 @@
+{
+  "name": "gateway",
+  "version": "0.0.0",
+  "engines": {
+    "node": ">=12.0.0"
+  },
+  "devDependencies": {
+    "serverless": "^2.13.0",
+    "serverless-webpack": "^5.3.5",
+    "webpack": "^5.6.0",
+    "webpack-cli": "^4.2.0"
+  },
+  "dependencies": {
+    "@apollo/gateway": "^0.21.3",
+    "apollo-server": "^2.19.0",
+    "apollo-server-lambda": "^2.19.0"
+  },
+  "scripts": {
+    "package": "serverless package -v --package ./build"
+  }
+}
diff --git a/serverless.yml b/serverless.yml
@@ -0,0 +1,19 @@
+service: lambda
+
+provider:
+  name: aws
+  region: us-west-2
+  runtime: nodejs12.x
+  environment:
+    LAMBDA_TASK_ROOT: true
+
+custom:
+  webpack:
+    webpackConfig: webpack.config.js
+
+plugins:
+  - serverless-webpack
+
+functions:
+  main:
+    handler: index.main
diff --git a/webpack.config.js b/webpack.config.js
@@ -0,0 +1,16 @@
+const path = require ('path');
+
+const slsw = require ('serverless-webpack');
+
+
+module.exports = {
+  mode: 'production',
+  entry: slsw.lib.entries,
+  target: 'node',
+  node: {
+    __dirname: false,
+  },
+  experiments: {
+    asyncWebAssembly: true,
+  },
+};
diff --git a/README.md b/README.md
@@ -0,0 +1 @@
+#