Wasp•4w ago

How do I access full request object (headers, ip address, user agent) in backend functions?

Hi, I need to be able to use information from the request headers to perform different logic. For wasp actions I only see the option of getting the request body, and the context only contains db entities and the logged in user. Is there a way to get full access to the headers like useragent, ip address, etc?

3 Replies

kapa.ai•4w ago

Hi @vance_solar. I'm kapa.ai, your friendly support bot. I will try to answer your question by searching through the knowledge base. :wave: ---------------------- To access the full request object, including headers, IP address, and user agent in Wasp backend functions, you have a couple of options depending on whether you're using Operations (Actions/Queries) or custom API routes. Let me explain both approaches: 1. For Operations (Actions/Queries): Currently, Wasp's Operations don't provide direct access to the full request object. They are designed to work as RPCs (Remote Procedure Calls) and abstract away the HTTP details. However, there's an ongoing discussion about potentially extending this functionality. 2. For custom API routes: If you need full access to the request object, the recommended approach is to use Wasp's custom API routes feature. This allows you to define Express-like routes where you have access to the complete req object. Here's how you can set up and use a custom API route to access request information: 1. First, define your API in the Wasp file:

api MyCustomApi {
  httpRoute: (GET, POST, "/api/custom"),
  fn: import { myCustomApi } from "@server/myApi.js"
}

api MyCustomApi {
  httpRoute: (GET, POST, "/api/custom"),
  fn: import { myCustomApi } from "@server/myApi.js"
}

2. Then implement the API function in your server code:

export const myCustomApi = (req, res, context) => {
  // Access request information
  const userAgent = req.get('User-Agent');
  const ipAddress = req.ip;
  const customHeader = req.get('X-Custom-Header');

  // Your logic here

  res.json({ message: "Custom API response" });
};

export const myCustomApi = (req, res, context) => {
  // Access request information
  const userAgent = req.get('User-Agent');
  const ipAddress = req.ip;
  const customHeader = req.get('X-Custom-Header');

  // Your logic here

  res.json({ message: "Custom API response" });
};

In this implementation, you have full access to the Express req object, allowing you to retrieve headers, IP address, and other request information. For more details on setting up custom API routes in Wasp, you can refer to the Custom HTTP API Endpoints documentation. It's worth noting that there's an ongoing discussion about potentially extending the functionality of Operations to include more request information. You can follow the progress of this discussion in the GitHub issue about allowing more info in the user object. If you specifically need this functionality in Operations and can't use custom API routes, you might want to consider contributing to the discussion or even implementing a feature request to extend Operation capabilities. ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ---------------------- Sorry @vance_solar, I seem to be having a bit of trouble. Don't worry though, I've pinged my support and they will try to fix me up! :technologist: Perhaps try again in 15mins?

Filip•4w ago

Hey @vance_solar, no way to do it in Operations unfortunately. Take a look at: - Custom APIs (like the bot suggested): https://wasp-lang.dev/docs/advanced/apis - Middleware functions: https://wasp-lang.dev/docs/advanced/middleware-config

vance_solarOP•3w ago

Yup, I figured. Thanks for following up!

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How do I access full request object (headers, ip address, user agent) in backend functions?

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