[monorepo] What is the purpose of the "resolutions" key in this monorepo's package.json?

[silesky]

Curious about why this is needed / what situations this is useful in? My understanding is that yarn workspaces automatically uses the simlinked versions of these, no matter where they live (as long as installed at the top level)?

"resolutions": {
    "prettier": "2.7.1",
    "babel-jest": "28.1.3",
    "jest-runner": "28.1.3",
    "graphql": "16.6.0",
    "graphql-language-service-interface": "2.10.2",
    "**/apollo-language-server/graphql": "^16.0.0",
    "**/@types/graphql-upload/graphql": "^16.0.0",
    "ts-node": "10.9.1"
  }

I am running a monorepo with about the same stack, so its of particular interest.

[charlypoly]

Hi @silesky,

You can find the documentation for Yarn resolutions here: https://classic.yarnpkg.com/lang/en/docs/selective-version-resolutions/

Please know that using it with @graphql-codegen packages won't work since it is used as a binary.