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Clarify how wrangler --env affects loading .env and .dev.vars #19340

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Jan 28, 2025
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Clarify how wrangler --env affects loading .env and .dev.vars #19340

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0756fe0
Clarify how `wrangler --env` affects loading `.env` and `.dev.vars`
vicb Jan 22, 2025
2683405
Update src/content/docs/workers/wrangler/system-environment-variables…
vicb Jan 22, 2025
9298939
Update src/content/partials/workers/secrets-in-dev.mdx
vicb Jan 22, 2025
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5 changes: 5 additions & 0 deletions src/content/docs/workers/wrangler/system-environment-variables.mdx
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Expand Up @@ -16,6 +16,11 @@ System environment variables are local environment variables that can change Wra

3. Set the values in your shell environment. For example, if you are using Z shell, adding `export CLOUDFLARE_API_TOKEN=...` to your `~/.zshrc` file will set this token as part of your shell configuration.

:::note

You can set system environment variables per environment by creating additional files with the naming convention `.env.<environment-name>`. When you set the environment using `wrangler <command> --env <environment-name>`, these files take precedence over `.env`.
:::

## Supported environment variables

Wrangler supports the following environment variables:
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4 changes: 3 additions & 1 deletion src/content/partials/workers/secrets-in-dev.mdx
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Expand Up @@ -12,4 +12,6 @@ SECRET_KEY="value"
API_TOKEN="eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9"
```

You can set secrets per environment by creating additional files with the naming convention `.dev.vars.<environment-name>`. Like other environment variables, secrets are [non-inheritable](/workers/wrangler/configuration/#non-inheritable-keys) and must be defined per environment.
You can set secrets per environment by creating additional files with the naming convention `.dev.vars.<environment-name>`. When you set the environment using `wrangler <command> --env <environment-name>`, these files take precedence over `.dev.vars`.

Like other environment variables, secrets are [non-inheritable](/workers/wrangler/configuration/#non-inheritable-keys) and must be defined per environment.
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