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To clarify, are you asking if there’s a way to inspect the current operation from inside your TypeScript program?
Something like:
```if (process.env["PULUMI_OPERATION"] === "PREVIEW") {
    // Perform logic specific to PREVEW operations
} else {
   // Handle Update/Destroy/Up cases
}```


Ah, sorry <@U03BBNY7KEX> I wasn’t suggesting that already exists, sorry! I’m unsure if it does or not! I wanted to understand your question better.

I’m having to write some custom code due to missing provider, want to ensure it only runs in update and not preview

<https://www.pulumi.com/docs/reference/pkg/nodejs/pulumi/pulumi/runtime/#isDryRun>