🚀 Feature Request: `wrangler types` generates wider types for environment variables

[mw10013]

Describe the solution

wrangler types seems to generate literals for environment variables in wrangler.toml. A wider type like string may be more helpful.

[vars]
ENVIRONMENT = "development"

generates

interface Env {
  ENVIRONMENT: "development";
}

Typescript then complains when I try to compare ENVIRONMENT against, say, 'production'.

[dario-piotrowicz]

@mw10013 thanks for the issue 🙂

I've opened a PR to hopefully address this: https://github.com/cloudflare/workers-sdk/pull/5086

With my changes if you have your variable defined in multiple environments in your config file and run wrangler types instead of getting the single string literal you get a union of all the possible values, please have a look and let me know if it does solve the issue 🙂🙏

---

PS: you can try seeing if the PR's prerelease works for you by running:

npx https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/runs/8032131415/npm-package-wrangler-5086 types

[mw10013]

@dario-piotrowicz : I tried the PR prerelease and it works perfectly for my use case. World class typing. Thanks!

[dario-piotrowicz]

@mw10013 great! :rocket: thanks for giving it a try! :smile: