flat-fuchsia•2mo ago

Jwt refresh token. API access with outdated token

I use python fastapi for my backend. I issued jwt access token and refresh token for refine. Data access to API with expired token. Does anyone can advise the correct approach for refresh token implementation?

17 Replies

kapa.ai•2mo ago

Hi @vtong 🙋♂. I'm kapa.ai, your friendly support bot. I will try to answer your question by searching through the knowledge base. :wave: ---------------------- Based on the knowledge sources provided, I can offer some guidance on implementing JWT refresh token functionality with refine, though the specific details for a Python FastAPI backend are not covered in the given information. Here's what I can advise: 1. Refine supports JWT authentication and refresh token mechanisms. The implementation details are typically handled in the authProvider component of your refine application. 2. In your authProvider, you should implement a method to handle token refresh. This is usually done in the check method of the authProvider. 3. When an API request fails due to an expired token (usually indicated by a 401 status), you should attempt to refresh the token before retrying the original request. 4. Here's a general approach you could follow: - Store both the access token and refresh token securely (e.g., in cookies or local storage) - In your authProvider.check method, verify the current token - If the token is expired, use the refresh token to obtain a new access token - Update the stored tokens with the new ones - Retry the original request with the new access token 5. It's important to note that token refresh should be handled securely. The JWT Authentication blog post mentions some limitations and security considerations of using JWTs for session management. 6. For a more detailed implementation guide, you can refer to the Authentication tutorial in the refine documentation. Remember that while refine provides the framework for handling authentication, the actual token issuance and validation will need to be implemented on your FastAPI backend. You'll need to ensure your backend can issue both access and refresh tokens, validate them, and handle refresh requests appropriately. If you need more specific guidance on implementing this with FastAPI, you might want to consult FastAPI-specific resources as the provided knowledge sources don't cover that particular backend technology. ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•2mo ago

<@1172845458167709838> Kapa.ai is still learning and improving, please let me know how I did by reacting below.

flat-fuchsiaOP•2mo ago

When an API request fails due to an expired token (usually indicated by a 401 status), you should attempt to refresh the token before retrying the original request. @kapa.ai can you give me some sample code?

kapa.ai•2mo ago

Let me check the knowledge base for you again. One moment! :books: ---------------------- Certainly! I can provide you with a sample code snippet from the refine documentation that demonstrates how to handle token refresh when an API request fails due to an expired token. Here's an example implementation:

import { AuthProvider } from "@refinedev/core";
import { AuthHelper } from "@refinedev/strapi-v4";

import axios from "axios";

export const axiosInstance = axios.create();
const strapiAuthHelper = AuthHelper(API_URL + "/api");

export const authProvider: AuthProvider = {
  // ... other methods

  check: async () => {
    try {
      const token = localStorage.getItem(TOKEN_KEY);
      if (token) {
        axiosInstance.defaults.headers.common[
          "Authorization"
        ] = `Bearer ${token}`;
        return {
          authenticated: true,
        };
      }

      return {
        authenticated: false,
        logout: true,
        error: {
          message: "Check failed",
          name: "Token not found",
        },
        redirectTo: "/",
      };
    } catch (error: any) {
      return {
        authenticated: false,
        logout: true,
        error: error,
        redirectTo: "/",
      };
    }
  },

  // ... other methods
};

import { AuthProvider } from "@refinedev/core";
import { AuthHelper } from "@refinedev/strapi-v4";

import axios from "axios";

export const axiosInstance = axios.create();
const strapiAuthHelper = AuthHelper(API_URL + "/api");

export const authProvider: AuthProvider = {
  // ... other methods

  check: async () => {
    try {
      const token = localStorage.getItem(TOKEN_KEY);
      if (token) {
        axiosInstance.defaults.headers.common[
          "Authorization"
        ] = `Bearer ${token}`;
        return {
          authenticated: true,
        };
      }

      return {
        authenticated: false,
        logout: true,
        error: {
          message: "Check failed",
          name: "Token not found",
        },
        redirectTo: "/",
      };
    } catch (error: any) {
      return {
        authenticated: false,
        logout: true,
        error: error,
        redirectTo: "/",
      };
    }
  },

  // ... other methods
};

This code snippet is from the Refine Strapi-v4 Auth Provider. While it doesn't explicitly show the token refresh mechanism, it demonstrates how to check for an existing token and set it in the axios instance headers. To implement token refresh, you would typically: 1. Catch the 401 error in your API requests 2. Call a refresh token endpoint 3. Update the stored tokens 4. Retry the original request Here's a conceptual example of how you might implement this (note that this is not from the official documentation and may need to be adapted to your specific setup):

axiosInstance.interceptors.response.use(
  (response) => response,
  async (error) => {
    const originalRequest = error.config;
    if (error.response.status === 401 && !originalRequest._retry) {
      originalRequest._retry = true;
      try {
        const refreshToken = localStorage.getItem(REFRESH_TOKEN_KEY);
        const response = await axios.post('/auth/refresh', { refreshToken });
        const { token } = response.data;
        localStorage.setItem(TOKEN_KEY, token);
        axiosInstance.defaults.headers.common['Authorization'] = `Bearer ${token}`;
        return axiosInstance(originalRequest);
      } catch (refreshError) {
        // Handle refresh token failure (e.g., logout user)
        return Promise.reject(refreshError);
      }
    }
    return Promise.reject(error);
  }
);

axiosInstance.interceptors.response.use(
  (response) => response,
  async (error) => {
    const originalRequest = error.config;
    if (error.response.status === 401 && !originalRequest._retry) {
      originalRequest._retry = true;
      try {
        const refreshToken = localStorage.getItem(REFRESH_TOKEN_KEY);
        const response = await axios.post('/auth/refresh', { refreshToken });
        const { token } = response.data;
        localStorage.setItem(TOKEN_KEY, token);
        axiosInstance.defaults.headers.common['Authorization'] = `Bearer ${token}`;
        return axiosInstance(originalRequest);
      } catch (refreshError) {
        // Handle refresh token failure (e.g., logout user)
        return Promise.reject(refreshError);
      }
    }
    return Promise.reject(error);
  }
);

This interceptor would catch 401 errors, attempt to refresh the token, and retry the original request if successful. Remember, the exact implementation will depend on your backend API structure and how it handles token refresh. You'll need to adjust this code to match your specific authentication flow and API endpoints. Auth Provider Usage ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•2mo ago

<@1172845458167709838> Kapa.ai is still learning and improving, please let me know how I did by reacting below.

flat-fuchsiaOP•2mo ago

@kapa.ai I have not idea which file in refine is the best to catch 401 status for list.

kapa.ai•2mo ago

Let me check the knowledge base for you again. One moment! :books: ---------------------- Based on the knowledge sources provided, I can offer some guidance on handling 401 status errors for list operations in refine. The best place to catch and handle these errors is typically in the dataProvider or through an interceptor in your HTTP client (like Axios). Here's a relevant example of how you can implement error handling in your data provider:

import { DataProvider, HttpError } from "@refinedev/core";
import axios from "axios";

// Error handling with axios interceptors
const axiosInstance = axios.create();

axiosInstance.interceptors.response.use(
  (response) => {
    return response;
  },
  (error) => {
    const customError: HttpError = {
      ...error,
      message: error.response?.data?.message,
      statusCode: error.response?.status,
    };

    return Promise.reject(customError);
  },
);

export const dataProvider = (apiUrl: string): DataProvider => ({
  // Methods
});

import { DataProvider, HttpError } from "@refinedev/core";
import axios from "axios";

// Error handling with axios interceptors
const axiosInstance = axios.create();

axiosInstance.interceptors.response.use(
  (response) => {
    return response;
  },
  (error) => {
    const customError: HttpError = {
      ...error,
      message: error.response?.data?.message,
      statusCode: error.response?.status,
    };

    return Promise.reject(customError);
  },
);

export const dataProvider = (apiUrl: string): DataProvider => ({
  // Methods
});

This example comes from the Data Provider documentation. It shows how to set up an Axios interceptor to catch and format errors, including 401 status errors. For specifically handling 401 errors and implementing token refresh, you could modify the interceptor like this:

axiosInstance.interceptors.response.use(
  (response) => response,
  async (error) => {
    if (error.response?.status === 401) {
      // Implement your token refresh logic here
      // If refresh is successful, retry the original request
      // If refresh fails, reject the promise and handle accordingly
    }
    return Promise.reject(error);
  }
);

axiosInstance.interceptors.response.use(
  (response) => response,
  async (error) => {
    if (error.response?.status === 401) {
      // Implement your token refresh logic here
      // If refresh is successful, retry the original request
      // If refresh fails, reject the promise and handle accordingly
    }
    return Promise.reject(error);
  }
);

This approach allows you to catch 401 errors for all requests, including list operations, in a centralized manner. Remember, the exact implementation will depend on your specific authentication flow and API structure. You may need to adjust this code to fit your particular use case. Data Provider Error Format ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•2mo ago

<@1172845458167709838> Kapa.ai is still learning and improving, please let me know how I did by reacting below.

flat-fuchsiaOP•2mo ago

@kapa.ai I am using @ffimnsr/refine-postgrest, can you advise how I add code for 401?

kapa.ai•2mo ago

Let me check the knowledge base for you again. One moment! :books: ---------------------- I apologize, but I don't have specific information about @ffimnsr/refine-postgrest in the provided knowledge sources. The refine documentation and examples I have access to don't mention this particular package. However, I can provide some general guidance based on how error handling typically works in refine data providers: 1. You would usually handle 401 errors in your data provider implementation or through an HTTP client interceptor (like Axios). 2. If you're using Axios with your PostgREST data provider, you could add an interceptor to handle 401 errors. Here's a general example of how you might do this:

import axios from 'axios';
import { DataProvider } from "@refinedev/core";

const axiosInstance = axios.create();

axiosInstance.interceptors.response.use(
  (response) => response,
  async (error) => {
    if (error.response?.status === 401) {
      // Implement your token refresh logic here
      // If refresh is successful, retry the original request
      // If refresh fails, reject the promise and handle accordingly
    }
    return Promise.reject(error);
  }
);

// Use this axiosInstance when creating your PostgREST data provider

import axios from 'axios';
import { DataProvider } from "@refinedev/core";

const axiosInstance = axios.create();

axiosInstance.interceptors.response.use(
  (response) => response,
  async (error) => {
    if (error.response?.status === 401) {
      // Implement your token refresh logic here
      // If refresh is successful, retry the original request
      // If refresh fails, reject the promise and handle accordingly
    }
    return Promise.reject(error);
  }
);

// Use this axiosInstance when creating your PostgREST data provider

3. If the @ffimnsr/refine-postgrest package provides its own methods for customizing error handling, you would need to refer to its specific documentation to implement 401 error handling. 4. You might also consider implementing error handling in your authProvider, particularly in the check method, as shown in this example from the Refine documentation:

const authProvider: AuthProvider = {
  // ...other methods
  check: async () => {
    try {
      // Your authentication check logic here
    } catch (error) {
      return {
        authenticated: false,
        error: new Error("Authentication failed"),
      };
    }
  },
  // ...other methods
};

const authProvider: AuthProvider = {
  // ...other methods
  check: async () => {
    try {
      // Your authentication check logic here
    } catch (error) {
      return {
        authenticated: false,
        error: new Error("Authentication failed"),
      };
    }
  },
  // ...other methods
};

For the most accurate and up-to-date information on how to implement 401 error handling with @ffimnsr/refine-postgrest, I recommend checking the package's documentation or reaching out to its maintainers directly, as the provided knowledge sources don't contain specific information about this package. ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•2mo ago

<@1172845458167709838> Kapa.ai is still learning and improving, please let me know how I did by reacting below.

flat-fuchsiaOP•2mo ago

@kapa.ai in App.tsx, I created postgrestClient like that. Is it correct for the jwt handling? const postgrestClient = createClient(POSTGREST_API_URL, { headers: { Authorization: token ? Bearer ${token} : null, }, });

kapa.ai•2mo ago

Let me check the knowledge base for you again. One moment! :books: ---------------------- Based on the information provided in the knowledge sources, I can offer some guidance on your approach to JWT handling in the App.tsx file using PostgREST with refine. While the specific createClient function you're using isn't mentioned in the provided sources, your approach seems to be on the right track. However, there are some considerations and potential improvements you could make: 1. Dynamic Token Handling: Your current approach sets the token once when creating the client. This might not account for token changes or refreshes during the application's lifecycle. 2. Interceptor Usage: As suggested in the Data Provider documentation, using an interceptor can provide more dynamic and flexible token handling, including the ability to refresh tokens on 401 errors. Here's a suggestion on how you might improve your JWT handling:

import { createClient } from '@supabase/supabase-js'
import axios from 'axios'

const axiosInstance = axios.create();

axiosInstance.interceptors.request.use((config) => {
  const token = localStorage.getItem('token'); // Or however you store your token
  if (token) {
    config.headers['Authorization'] = `Bearer ${token}`;
  }
  return config;
});

axiosInstance.interceptors.response.use(
  (response) => response,
  async (error) => {
    if (error.response?.status === 401) {
      // Implement token refresh logic here
      // If refresh is successful, retry the original request
      // If refresh fails, handle accordingly (e.g., logout user)
    }
    return Promise.reject(error);
  }
);

const postgrestClient = createClient(POSTGREST_API_URL, {
  headers: {
    // You can set default headers here if needed
  },
});

// Use axiosInstance for your API requests

import { createClient } from '@supabase/supabase-js'
import axios from 'axios'

const axiosInstance = axios.create();

axiosInstance.interceptors.request.use((config) => {
  const token = localStorage.getItem('token'); // Or however you store your token
  if (token) {
    config.headers['Authorization'] = `Bearer ${token}`;
  }
  return config;
});

axiosInstance.interceptors.response.use(
  (response) => response,
  async (error) => {
    if (error.response?.status === 401) {
      // Implement token refresh logic here
      // If refresh is successful, retry the original request
      // If refresh fails, handle accordingly (e.g., logout user)
    }
    return Promise.reject(error);
  }
);

const postgrestClient = createClient(POSTGREST_API_URL, {
  headers: {
    // You can set default headers here if needed
  },
});

// Use axiosInstance for your API requests

This approach allows for more dynamic token handling and provides a mechanism for token refresh on 401 errors. Remember to adjust this code to fit your specific authentication flow and API structure. The exact implementation will depend on how your backend handles authentication and token refresh. Data Provider Error Format If you need more specific guidance on using @ffimnsr/refine-postgrest, I recommend checking its documentation or reaching out to its maintainers, as the provided knowledge sources don't contain specific information about this package. ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•2mo ago

<@1172845458167709838> Kapa.ai is still learning and improving, please let me know how I did by reacting below.

flat-fuchsiaOP•2mo ago

@kapa.ai I put following code to App.tsx. However, axiosInstance.interceptors.request.use does not run. How to fix? const axiosInstance = axios.create(); axiosInstance.interceptors.request.use((config) => { const token = localStorage.getItem('refine-auth'); // Or however you store your token console.log('token', token); if (token) { config.headers['Authorization'] = Bearer ${token}; } return config; }); axiosInstance.interceptors.response.use( (response) => response, async (error) => { if (error.response?.status === 401) { refreshToken(); } return Promise.reject(error); } ); const postgrestClient = createClient(POSTGREST_API_URL);

kapa.ai•2mo ago

Let me check the knowledge base for you again. One moment! :books: ---------------------- Based on the information provided in the knowledge sources and your code snippet, it seems that the issue might be related to how the axiosInstance is being used in your application. Here are a few suggestions to fix the problem: 1. Make sure you're actually using the axiosInstance for your API requests. The interceptor won't run if you're not using this specific instance for your API calls. 2. If you're using a data provider, you need to pass the axiosInstance to it. For example, if you're using the simple-rest data provider, you would do something like this:

import dataProvider from "@refinedev/simple-rest";

// ...

<Refine
  dataProvider={dataProvider("<https://api.fake-rest.refine.dev",> axiosInstance)}
  // ...
/>

import dataProvider from "@refinedev/simple-rest";

// ...

<Refine
  dataProvider={dataProvider("<https://api.fake-rest.refine.dev",> axiosInstance)}
  // ...
/>

3. If you're using a custom data provider or the PostgREST client, you need to ensure that it's using the axiosInstance for its HTTP requests. 4. For the PostgREST client specifically, it seems that you're not using the axiosInstance with it. You might need to configure the PostgREST client to use your custom Axios instance. However, the exact method to do this depends on the specific PostgREST client library you're using, which isn't specified in the provided knowledge sources. 5. You might want to add some error handling to your interceptor to catch and log any issues:

axiosInstance.interceptors.request.use(
  (config) => {
    const token = localStorage.getItem('refine-auth');
    console.log('Interceptor running, token:', token);
    if (token) {
      config.headers['Authorization'] = `Bearer ${token}`;
    }
    return config;
  },
  (error) => {
    console.error('Interceptor error:', error);
    return Promise.reject(error);
  }
);

axiosInstance.interceptors.request.use(
  (config) => {
    const token = localStorage.getItem('refine-auth');
    console.log('Interceptor running, token:', token);
    if (token) {
      config.headers['Authorization'] = `Bearer ${token}`;
    }
    return config;
  },
  (error) => {
    console.error('Interceptor error:', error);
    return Promise.reject(error);
  }
);

6. Ensure that you're setting the token in localStorage correctly. The key 'refine-auth' should match what you're using elsewhere in your app. 7. If you're using a custom PostgREST client, you might need to implement the token handling directly in that client, rather than relying on Axios interceptors. Remember, the exact implementation details may vary depending on your specific setup and the libraries you're using. If you continue to have issues, you might need to review how your data provider and API clients are set up and ensure they're correctly using the Axios instance with the interceptors. Auth Provider Usage Data Provider Error Format ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•2mo ago

<@1172845458167709838> Kapa.ai is still learning and improving, please let me know how I did by reacting below.

Jwt refresh token. API access with outdated token

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