johntran / apollo-tools-repro

Error: Cannot find any-observable implementation nor global.Observable.

apollo-tools-repro

Solved: Add shamefully-flatten=true to .npmrc to use npm/yarn's node modules resolution algorithm.

Repro for this issue: apollographql/apollo-tooling#1541

Setting up Repro

1. Clone repo

git clone https://github.com/johntran/apollo-tools-repro.git
cd apollo-tools-repro

2. Install Rush

npm install -g @microsoft/rush

3. Install dependencies

rush update

Reproduction step

Have two consoles open. Starting from the root.

Console One - this boots up the GraphQL server

cd apps/starwars-server && rushx start

Console Two - this causes the error

rush apollo

Get

FAILURE (1)
================================
frontend (2.26 seconds)
Error: Cannot find any-observable implementation nor global.Observable. You must install polyfill or call require("any-observable/register") with your preferred implementation, e.g. require("any-observable/register")('rxjs') on application load prior to any require("any-observable").
    at loadImplementation (~/apollo-tools-repro/common/temp/node_modules/.registry.npmjs.org/any-observable/0.3.0/node_modules/any-observable/register.js:29:9)
    at ~/apollo-tools-repro/common/temp/node_modules/.registry.npmjs.org/any-observable/0.3.0/node_modules/any-observable/loader.js:30:18
    at Object.<anonymous> (~/apollo-tools-repro/common/temp/node_modules/.registry.npmjs.org/any-observable/0.3.0/node_modules/any-observable/index.js:2:39)
================================

Context

This monorepo is managed with RushJS.

rush apollo

• is a global Rush command.
• can be located in common/config/rush/command-line.json lines 125-141
• calls download-schema npm script in the generate-graphql-typescript repo, which downloads the GQL schema that frontend bases codegen on.
• then it calls rush apollo-types, another global Rush command

rush apollo-types

• is a bulk Rush command. so it calls this command on every repo.

apollo-types

• is an npm script command. apps/frontend/package.json line 9
• this deletes all folders named generatedTypes then it calls codegen

Thoughts

pnpm could be the cause. If you swap out yarn for pnpm by:

• going to rush.json and commenting line 29 and uncommenting line 32
• going to common/config/rush and deleting pnpm-lock.yaml and pnpmfile.js
• rush update --full --purge anywhere in the repo
• rush apollo anywhere in the repo

You'll get a success message

SUCCESS (3)
================================
@johntran/generate-graphql-typescript
frontend (2.67 seconds)
starwars-server
================================