How Can I Create landing page in appwrite function.

I created function called invoice URL https://app.getrestt.com/v1/functions/invoice/executions?id=test-76f948fe83c43422561fe096c0674a1bd3ff0702cdfcf2444293ab31937a9c4d, i make it permission to any. and I deploye the code like this , when i try to access it in public browser, i get this error {"message":"No Appwrite project was specified. Please specify your project ID when initializing your Appwrite SDK.","code":401,"type":"general_access_forbidden","version":"1.7.4"} how can i manage this ? its possible to use function for this purpose ?

Can you try adding your project ID at the end of the URL? Like this: https://app.getrestt.com/v1/functions/invoice/executions ?id=test-76f948fe83c43422561fe096c0674a1bd3ff0702cdfcf2444293ab31937a9c4d &project=<your_projectID>

Thanks for your response {"message":"User (role: guests) missing scope (execution.read)","code":401,"type":"general_unauthorized_scope","version":"1.7.4"} but i used User : any i checked all permission inside the function , but still same

You are using custom domain right?

And are you sure this domain you're using is same as the one in Domains tab ?

Also, there are two more issues I found:

1. You haven't included Query in imports but you're using it in your code. It should be like this: import { Client, Databases, Query } from "node-appwrite";
2. Also, you are returning entire object in invoice. It should be something like this to extract only the required part from the response:

const response = await databases.listDocuments(
   process.env.DATABASE_ID,
   process.env.INVOICE_COLLECTION_ID,
   [
     Query.equal('irn', invoiceId)
   ]
);
const invoice = result.documents[0];