Wasp•5d ago

AuthUser in Server

How do I get user data or user session from within a server file?

17 Replies

Hi @Rafael Pettersen. I'm kapa.ai, your friendly support bot. I will try to answer your question by searching through the knowledge base. :wave: ---------------------- To access user data or user session within a server file in Wasp, you can use the context.user object. This is available in all queries and actions when authentication is enabled. Here's how you can do it: 1. In server-side operations (queries and actions), the user object is accessible through the context argument:

export const createTask = async (task, context) => {
  if (!context.user) {
    throw new HttpError(403)
  }
  
  const Task = context.entities.Task
  return Task.create({
    data: {
      description: task.description,
      user: {
        connect: { id: context.user.id },
      },
    },
  })
}

export const createTask = async (task, context) => {
  if (!context.user) {
    throw new HttpError(403)
  }
  
  const Task = context.entities.Task
  return Task.create({
    data: {
      description: task.description,
      user: {
        connect: { id: context.user.id },
      },
    },
  })
}

2. The context.user object contains all fields of the User entity and the auth identities connected to the user (except for the hashedPassword field, which is stripped out for security reasons). 3. You can use helper functions like getEmail, getUsername, or getFirstProviderUserId to easily access specific user information:

import { getEmail } from 'wasp/auth'

export const createTask = async (args, context) => {
  const email = getEmail(context.user)
  // ...
}

import { getEmail } from 'wasp/auth'

export const createTask = async (args, context) => {
  const email = getEmail(context.user)
  // ...
}

Remember to always check if context.user exists before using it, as it will be undefined for unauthenticated users. For more detailed information, you can refer to the following documentation: Auth Overview: Using the context.user object (https://wasp-lang.dev/docs/auth/overview#using-the-contextuser-object) Auth Entities: Accessing the Auth Fields (https://wasp-lang.dev/docs/auth/entities#accessing-the-auth-fields) ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ---------------------- Sorry @Rafael Pettersen, 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?

Rafael PettersenOP•5d ago

@kapa.ai and how do i have access to the context? I'm trying to access user data from an api route function, that is declared like this: app.api('chat', { fn: { import: 'handler', from: '@src/server/handler }, auth: true, httpRoute: ['POST', '/api/handler'] });

kapa.ai•5d ago

Let me check the knowledge base for you again. One moment! :books: ---------------------- To access the context object, including user data, from an API route function in Wasp, you need to define your handler function with the correct parameters. For API routes, Wasp provides the context as the third parameter of your handler function. Here's how you can modify your handler to access the user data:

export const handler = (req, res, context) => {
  if (!context.user) {
    return res.status(401).json({ error: 'Unauthorized' });
  }

  // Now you can access user data
  const userId = context.user.id;
  // ... rest of your handler logic
};

export const handler = (req, res, context) => {
  if (!context.user) {
    return res.status(401).json({ error: 'Unauthorized' });
  }

  // Now you can access user data
  const userId = context.user.id;
  // ... rest of your handler logic
};

In this setup: 1. req is the Express Request object 2. res is the Express Response object 3. context is the additional context object injected by Wasp, which includes the user information when auth: true is set in the API declaration You can then use helper functions like getEmail or getUsername to easily access specific user information:

import { getEmail, getUsername } from 'wasp/auth'

export const handler = (req, res, context) => {
  if (!context.user) {
    return res.status(401).json({ error: 'Unauthorized' });
  }

  const email = getEmail(context.user);
  const username = getUsername(context.user);

  // ... rest of your handler logic
};

import { getEmail, getUsername } from 'wasp/auth'

export const handler = (req, res, context) => {
  if (!context.user) {
    return res.status(401).json({ error: 'Unauthorized' });
  }

  const email = getEmail(context.user);
  const username = getUsername(context.user);

  // ... rest of your handler logic
};

This approach is documented in the Wasp documentation: Custom HTTP API Endpoints: How to Create an API (https://wasp-lang.dev/docs/advanced/apis#defining-the-apis-nodejs-implementation) Remember that since you've set auth: true in your API declaration, Wasp will automatically attempt to parse the JWT in the Authorization Header and provide the user information in the context object. If the user is not authenticated, context.user will be undefined, so it's good practice to check for its existence as shown in the examples above. ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ---------------------- Sorry @Rafael Pettersen, 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?

Rafael PettersenOP•5d ago

@kapa.ai ok, it kind of worked, i do get context.entities, but context.user is null, even having a user logged in. here's main.wasp:

app.api('chat', {
  fn: { import: 'chatHandler', from: '@src/server/chat' },
  entities: ['Chat'],
  auth: true,
  httpRoute: ['POST', '/api/chat']
});

app.api('chat', {
  fn: { import: 'chatHandler', from: '@src/server/chat' },
  entities: ['Chat'],
  auth: true,
  httpRoute: ['POST', '/api/chat']
});

and here is the api declaration:

export const chatHandler: Chat = async (req, res, context) => {

export const chatHandler: Chat = async (req, res, context) => {

kapa.ai•5d ago

Let me check the knowledge base for you again. One moment! :books:

MEE6•5d ago

Wohooo @Rafael Pettersen, you just became a Waspeteer level 2!

kapa.ai•5d ago

---------------------- Based on the information you've provided, it seems that you're encountering an issue where context.user is null even when a user is logged in. Let's analyze this situation and provide some possible solutions. First, let's confirm that your API declaration in main.wasp is correct:

app.api('chat', {
  fn: { import: 'chatHandler', from: '@src/server/chat' },
  entities: ['Chat'],
  auth: true,
  httpRoute: ['POST', '/api/chat']
});

app.api('chat', {
  fn: { import: 'chatHandler', from: '@src/server/chat' },
  entities: ['Chat'],
  auth: true,
  httpRoute: ['POST', '/api/chat']
});

This looks correct. You've set auth: true, which should provide the user information in the context. However, there are a few things we should check: 1. Make sure you're sending the authentication token correctly from the client side. The token should be included in the Authorization header of the request. 2. Verify that the user is actually logged in when making the request. 3. Check if there are any issues with the JWT token itself. To troubleshoot this, you can try the following: 1. Log the entire context object to see what it contains:

export const chatHandler = async (req, res, context) => {
  console.log('Context:', context);
  // ... rest of your handler
};

export const chatHandler = async (req, res, context) => {
  console.log('Context:', context);
  // ... rest of your handler
};

2. Check if the Authorization header is present in the request:

export const chatHandler = async (req, res, context) => {
  console.log('Authorization header:', req.headers.authorization);
  // ... rest of your handler
};

export const chatHandler = async (req, res, context) => {
  console.log('Authorization header:', req.headers.authorization);
  // ... rest of your handler
};

3. If you're using TypeScript, make sure you're using the correct type for the handler. The type should come from Wasp's generated types:

import { ChatHandler } from 'wasp/server/api';

export const chatHandler: ChatHandler = async (req, res, context) => {
  // ... your handler code
};

import { ChatHandler } from 'wasp/server/api';

export const chatHandler: ChatHandler = async (req, res, context) => {
  // ... your handler code
};

If after these checks context.user is still null, there might be an issue with how Wasp is processing the authentication for API routes. In this case, you might want to: 1. Double-check that you're using the latest version of Wasp. 2. Ensure that the auth setup in your main.wasp file is correct. 3. Try using a query or action instead of an API route to see if the issue persists. If the problem continues, it would be worth reporting this as a potential bug to the Wasp team, as the behavior you're experiencing doesn't match the expected behavior based on the Wasp documentation on Custom HTTP API Endpoints (https://wasp-lang.dev/docs/advanced/apis#defining-the-apis-nodejs-implementation). ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ---------------------- Sorry @Rafael Pettersen, 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?

Rafael PettersenOP•5d ago

@kapa.ai on your point 1, how can i sen the authentication token correctly?

kapa.ai•5d ago

Let me check the knowledge base for you again. One moment! :books: ---------------------- To send the authentication token correctly from the client side in a Wasp application, you need to include it in the Authorization header of your HTTP request. Wasp provides a convenient way to do this using the api object from wasp/client/api. Here's how you can do it: 1. First, import the api object in your client-side code:

import { api } from 'wasp/client/api';

import { api } from 'wasp/client/api';

2. Then, use this api object to make your request. It automatically includes the authentication token in the headers:

const response = await api.post('/api/chat', {
  // your request body here
});

const response = await api.post('/api/chat', {
  // your request body here
});

The api object is a wrapper around Axios that automatically includes the authentication token in the Authorization header of every request. It retrieves this token from the browser's local storage where Wasp stores it after a successful login. If you need to make a request using a different HTTP method, you can use api.get(), api.put(), api.delete(), etc. This approach is the recommended way to make authenticated requests in a Wasp application, as it handles all the token management for you. For more information on using the api object, you can refer to the Wasp documentation on Custom HTTP API Endpoints (https://wasp-lang.dev/docs/advanced/apis#defining-the-apis-nodejs-implementation). Remember, for this to work, the user must be logged in, and Wasp must have stored the authentication token in the browser's local storage. If you're still experiencing issues with authentication after using this method, you may want to check if the user is properly logged in and if the token is being stored correctly. ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ---------------------- Sorry @Rafael Pettersen, 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? Let me check the knowledge base for you again. One moment! :books: ---------------------- I apologize, but I need more information to provide a helpful answer. Your question consists of only the letter "i", which doesn't give me enough context to understand what you're asking about Wasp. Could you please provide a more detailed question or clarify what specific information you're looking for regarding Wasp? I'm here to help with any Wasp-related queries you might have. ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ---------------------- Sorry @Rafael Pettersen, 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?

Rafael PettersenOP•5d ago

@kapa.ai i'm calling the api from a external module:

import { useChat } from 'ai/react'

import { useChat } from 'ai/react'

and would like the pass header auth like below, is that correct?

headers: {
      Authorization: `Bearer ${localStorage.getItem('token')}`
    }

headers: {
      Authorization: `Bearer ${localStorage.getItem('token')}`
    }

kapa.ai•5d ago

Let me check the knowledge base for you again. One moment! :books: ---------------------- Based on the information you've provided, it seems you're using an external module ai/react to make API calls, rather than using Wasp's built-in api object. In this case, you're on the right track with manually setting the Authorization header, but there are a few important points to consider: 1. Your approach of setting the header is correct:

headers: {
  Authorization: `Bearer ${localStorage.getItem('token')}`
}

headers: {
  Authorization: `Bearer ${localStorage.getItem('token')}`
}

This is the standard way to include a JWT token in the Authorization header. 2. However, directly accessing localStorage in React components isn't considered a best practice. It's better to use Wasp's built-in auth mechanisms. 3. Wasp provides a more secure and convenient way to handle authentication in API calls. Instead of manually setting the header, you can use the api object from wasp/client/api. This automatically handles token management and inclusion in requests. Here's how you could potentially combine the external useChat hook with Wasp's api object:

import { useChat } from 'ai/react'
import { api } from 'wasp/client/api'

// In your component
const { messages, input, handleInputChange, handleSubmit } = useChat({
  api: '/api/chat', // Your chat endpoint
  async onResponse(response) {
    // Use Wasp's api object to make the authenticated request
    const result = await api.post('/api/chat', {
      messages: messages,
      input: input
    })
    // Handle the response
    return result.data
  }
})

import { useChat } from 'ai/react'
import { api } from 'wasp/client/api'

// In your component
const { messages, input, handleInputChange, handleSubmit } = useChat({
  api: '/api/chat', // Your chat endpoint
  async onResponse(response) {
    // Use Wasp's api object to make the authenticated request
    const result = await api.post('/api/chat', {
      messages: messages,
      input: input
    })
    // Handle the response
    return result.data
  }
})

This approach leverages Wasp's built-in authentication handling while still using the external useChat hook. If you must use the external module's HTTP methods directly, your original approach with manually setting the Authorization header would work, but it's less secure and doesn't benefit from Wasp's automatic token management. For more information on using Wasp's API object, you can refer to the Wasp documentation on using the API from the client (https://wasp-lang.dev/docs/advanced/apis#using-the-api-from-the-client). Remember, the most secure and Wasp-integrated approach would be to use Wasp's built-in operations (queries and actions) or the api object from wasp/client/api whenever possible. ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ---------------------- Sorry @Rafael Pettersen, 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?

Rafael PettersenOP•5d ago

@kapa.ai that did not work, how can i pass the wasp user authorization to the headers, for instance, to be used in useChat?

kapa.ai•5d ago

Let me check the knowledge base for you again. One moment! :books: ---------------------- I understand that the previous suggestion didn't work for you. Let's try a different approach to pass the Wasp user authorization to the headers for use with useChat. In Wasp, you can access the current user's authentication token using the getToken() function from the auth module. Here's how you can use it to set up the headers for useChat:

import { useChat } from 'ai/react'
import { getToken } from 'wasp/client/auth'

// In your component
const { messages, input, handleInputChange, handleSubmit } = useChat({
  api: '/api/chat', // Your chat endpoint
  headers: async () => {
    const token = await getToken()
    return {
      'Authorization': `Bearer ${token}`
    }
  }
})

import { useChat } from 'ai/react'
import { getToken } from 'wasp/client/auth'

// In your component
const { messages, input, handleInputChange, handleSubmit } = useChat({
  api: '/api/chat', // Your chat endpoint
  headers: async () => {
    const token = await getToken()
    return {
      'Authorization': `Bearer ${token}`
    }
  }
})

This approach uses Wasp's getToken() function to retrieve the current user's authentication token and includes it in the headers for the useChat hook. The headers option in useChat accepts a function that returns the headers, which allows us to use an async function to get the token. The getToken() function is part of Wasp's client-side auth utilities and handles the retrieval of the token from wherever Wasp has stored it (typically in local storage). This method should work with Wasp's authentication system and provide the correct authorization header for your API calls made through useChat. For more information on Wasp's client-side auth utilities, you can refer to the Wasp documentation on client-side auth (https://wasp-lang.dev/docs/auth/overview#client-side). If you're still experiencing issues after trying this approach, it might be helpful to check if the token is being correctly retrieved and if your server is properly validating the token in the incoming requests. Auth Overview: Client-side (https://wasp-lang.dev/docs/auth/overview#client-side) ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ---------------------- Sorry @Rafael Pettersen, 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?

Rafael PettersenOP•5d ago

@kapa.ai there is no getToken from Wasp

kapa.ai•5d ago

Let me check the knowledge base for you again. One moment! :books: ---------------------- I apologize for the confusion in my previous response. You are correct that there is no getToken function directly exposed by Wasp. I made a mistake in suggesting that method. Let me provide you with the correct approach to handle authentication in your scenario. In Wasp, the authentication token is managed internally and not directly exposed. However, you can use the useAuth hook to access the current user's authentication status. Here's how you can modify your code to work with Wasp's authentication system:

import { useChat } from 'ai/react'
import { useAuth } from 'wasp/client/auth'

const YourComponent = () => {
  const { data: user, isLoading, error } = useAuth()

  const { messages, input, handleInputChange, handleSubmit } = useChat({
    api: '/api/chat', // Your chat endpoint
    headers: user ? { 'Authorization': `Bearer ${user.token}` } : {}
  })

  if (isLoading) return <div>Loading...</div>
  if (error) return <div>Error: {error.message}</div>

  // Rest of your component logic
}

import { useChat } from 'ai/react'
import { useAuth } from 'wasp/client/auth'

const YourComponent = () => {
  const { data: user, isLoading, error } = useAuth()

  const { messages, input, handleInputChange, handleSubmit } = useChat({
    api: '/api/chat', // Your chat endpoint
    headers: user ? { 'Authorization': `Bearer ${user.token}` } : {}
  })

  if (isLoading) return <div>Loading...</div>
  if (error) return <div>Error: {error.message}</div>

  // Rest of your component logic
}

In this approach: 1. We import useAuth from wasp/client/auth. 2. We use the useAuth hook to get the current user's authentication status. 3. In the useChat configuration, we conditionally set the Authorization header based on whether a user is logged in. This method aligns with Wasp's authentication system and should work correctly with your useChat implementation. If you're still encountering issues, it might be worth checking your server-side implementation to ensure it's correctly processing the authentication token. For more details on using useAuth, you can refer to the Wasp documentation on the useAuth hook (https://wasp-lang.dev/docs/auth/overview#using-the-useauth-hook). ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ---------------------- Sorry @Rafael Pettersen, 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?

miho•3d ago

Kapa sometimes hallucinates 😄 the key in the localStorage is wasp:sessionId which is an internal API of Wasp - we cannot guarantee it will stay like that. Or you could import getSessionId from wasp/client/api. This should be less prone to changes in the future.

Rafael PettersenOP•3d ago

Thanks @miho Noted ✅

Gaming

Programming

AuthUser in Server

Did you find this page helpful?