flat-fuchsia
flat-fuchsia3w ago

how to use socket io as live provider

can i use socket io as live provider with expressjs
23 Replies
kapa.ai
kapa.ai3w ago
Hi @natztheking. I'm kapa.ai, your friendly support bot. I will try to answer your question by searching through the knowledge base. :wave: ---------------------- Yes, you can use Socket.IO as a live provider with Refine. While the provided knowledge sources do not include a specific example for Socket.IO, they do provide a general structure for creating a live provider. You can adapt this structure to use Socket.IO. Here is a basic example of how you might set up a live provider using Socket.IO with Express.js: 1. Install Socket.IO:
npm install socket.io

npm install socket.io

2. Create the Live Provider:
import { LiveProvider } from "@refinedev/core";
import { Server } from "socket.io";
import { createServer } from "http";

const httpServer = createServer();
const io = new Server(httpServer, {
cors: {
origin: "*",
},
});

export const liveProvider: LiveProvider = {
subscribe: async ({ callback, channel, types, meta, params }) => {
console.log(callback); // a function that will be called when there is an update
console.log(channel); // products, orders, etc.
console.log(types); // created, updated, deleted, "*", etc.
console.log(meta); // { fields: [], operation: "", queryContext: {}, variables: {} }

const { resource, id, ids } = params;

// subscribe to the resource updates
io.on("connection", (socket) => {
socket.join(channel);

socket.on("message", (data) => {
if (types.includes(data.type) || types.includes("*")) {
callback(data);
}
});
});
// return value will be passed to `unsubscribe` method.
return {
unsubscribe: () => {
io.socketsLeave(channel);
},
};
},
unsubscribe: async ({ unsubscribe }) => {
// unsubscribe from the resource updates
unsubscribe();
},
publish: async ({ channel, type, payload, date }) => {
console.log(channel); // products, orders, etc.
console.log(type); // created, updated, deleted, etc.
console.log(payload); // { id: 1, name: "Product 1" }, { id: 2, name: "Product 2" }, etc.
console.log(date); // new Date()

// publish the data to the resource channel.
io.to(channel).emit("message", { type, payload, date });
},
};

httpServer.listen(3000, () => {
console.log("Socket.IO server running at <http://localhost:3000/">);
});

import { LiveProvider } from "@refinedev/core";
import { Server } from "socket.io";
import { createServer } from "http";

const httpServer = createServer();
const io = new Server(httpServer, {
cors: {
origin: "*",
},
});

export const liveProvider: LiveProvider = {
subscribe: async ({ callback, channel, types, meta, params }) => {
console.log(callback); // a function that will be called when there is an update
console.log(channel); // products, orders, etc.
console.log(types); // created, updated, deleted, "*", etc.
console.log(meta); // { fields: [], operation: "", queryContext: {}, variables: {} }

const { resource, id, ids } = params;

// subscribe to the resource updates
io.on("connection", (socket) => {
socket.join(channel);

socket.on("message", (data) => {
if (types.includes(data.type) || types.includes("*")) {
callback(data);
}
});
});
// return value will be passed to `unsubscribe` method.
return {
unsubscribe: () => {
io.socketsLeave(channel);
},
};
},
unsubscribe: async ({ unsubscribe }) => {
// unsubscribe from the resource updates
unsubscribe();
},
publish: async ({ channel, type, payload, date }) => {
console.log(channel); // products, orders, etc.
console.log(type); // created, updated, deleted, etc.
console.log(payload); // { id: 1, name: "Product 1" }, { id: 2, name: "Product 2" }, etc.
console.log(date); // new Date()

// publish the data to the resource channel.
io.to(channel).emit("message", { type, payload, date });
},
};

httpServer.listen(3000, () => {
console.log("Socket.IO server running at <http://localhost:3000/">);
});

3. Use the Live Provider in Your Application:
import { Refine } from "@refinedev/core";
import { liveProvider } from "./liveProvider";

const App: React.FC = () => {
return (
<Refine liveProvider={liveProvider}>
{/* ... */}
</Refine>
);
};

export default App;

import { Refine } from "@refinedev/core";
import { liveProvider } from "./liveProvider";

const App: React.FC = () => {
return (
<Refine liveProvider={liveProvider}>
{/* ... */}
</Refine>
);
};

export default App;

This example sets up a basic Socket.IO server and integrates it with Refine as a live provider. You can expand on this by adding more specific logic for handling different types of events and data structures. For more detailed information on creating live providers, you can refer to the Live Provider documentation (https://refine.dev/docs/guides-concepts/realtime#live-provider). ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------
kapa.ai
kapa.ai3w ago
<@445580191104761857> kapa.ai is still learning and improving, please let us know how it did by reacting below
flat-fuchsia
flat-fuchsia3w ago
@kapa.ai No 'Access-Control-Allow-Origin' header is present on the requested resource.
kapa.ai
kapa.ai3w ago
Let me check the knowledge base for you. One moment! :books: ---------------------- The error message "No 'Access-Control-Allow-Origin' header is present on the requested resource" indicates that your server is not configured to allow cross-origin requests from your client application. This is a common issue when working with APIs and front-end applications hosted on different domains or ports. To resolve this issue, you need to configure your server to include the Access-Control-Allow-Origin header in its responses. Here is how you can do it with Express.js: 1. Install the cors package:
npm install cors

npm install cors

2. Configure CORS in your Express.js server:
const express = require('express');
const cors = require('cors');
const app = express();

// Use the CORS middleware
app.use(cors());

// Example route
app.get('/api/data', (req, res) => {
res.json({ message: 'This is CORS-enabled for all origins!' });
});

const PORT = process.env.PORT || 3000;
app.listen(PORT, () => {
console.log(`Server is running on port ${PORT}`);
});

const express = require('express');
const cors = require('cors');
const app = express();

// Use the CORS middleware
app.use(cors());

// Example route
app.get('/api/data', (req, res) => {
res.json({ message: 'This is CORS-enabled for all origins!' });
});

const PORT = process.env.PORT || 3000;
app.listen(PORT, () => {
console.log(`Server is running on port ${PORT}`);
});

By using the cors middleware, your server will automatically include the Access-Control-Allow-Origin header in its responses, allowing requests from any origin. If you want to restrict access to specific origins, you can configure the cors middleware accordingly:
app.use(cors({
origin: '<http://your-allowed-origin.com'>
}));
app.use(cors({
origin: '<http://your-allowed-origin.com'>
}));
For more detailed information on configuring CORS, you can refer to the CORS documentation (https://expressjs.com/en/resources/middleware/cors.html). If you are still experiencing issues, make sure to check your server logs and browser console for any additional error messages that might provide more context. ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------
kapa.ai
kapa.ai3w ago
<@445580191104761857> kapa.ai is still learning and improving, please let us know how it did by reacting below
flat-fuchsia
flat-fuchsia3w ago
@kapa.ai can i use AxiosInstance
kapa.ai
kapa.ai3w ago
Let me check the knowledge base for you. One moment! :books: ---------------------- Yes, you can use axiosInstance to handle CORS issues and include the necessary headers for your requests. Here is how you can configure axiosInstance to include the withCredentials option and set the appropriate headers: 1. Create and Configure axiosInstance:
import axios from 'axios';

const axiosInstance = axios.create({
baseURL: '<http://your-api-url.com',>
withCredentials: true, // This will include cookies in the requests
});

axiosInstance.interceptors.request.use(
(config) => {
const token = localStorage.getItem('token');
if (token) {
config.headers['Authorization'] = `Bearer ${token}`;
}
return config;
},
(error) => {
return Promise.reject(error);
}
);

export default axiosInstance;

import axios from 'axios';

const axiosInstance = axios.create({
baseURL: '<http://your-api-url.com',>
withCredentials: true, // This will include cookies in the requests
});

axiosInstance.interceptors.request.use(
(config) => {
const token = localStorage.getItem('token');
if (token) {
config.headers['Authorization'] = `Bearer ${token}`;
}
return config;
},
(error) => {
return Promise.reject(error);
}
);

export default axiosInstance;

2. Use axiosInstance in Your Refine Application:
import { Refine } from "@refinedev/core";
import { DataProvider } from "@refinedev/strapi-v4"; // or any other data provider
import axiosInstance from './axiosInstance'; // Import the configured axiosInstance

const API_URL = "<http://your-api-url.com/api";>

const App = () => {
return (
<Refine
dataProvider={DataProvider(API_URL, axiosInstance)}
// other providers like authProvider, routerProvider, etc.
>
{/* ... */}
</Refine>
);
};

export default App;

import { Refine } from "@refinedev/core";
import { DataProvider } from "@refinedev/strapi-v4"; // or any other data provider
import axiosInstance from './axiosInstance'; // Import the configured axiosInstance

const API_URL = "<http://your-api-url.com/api";>

const App = () => {
return (
<Refine
dataProvider={DataProvider(API_URL, axiosInstance)}
// other providers like authProvider, routerProvider, etc.
>
{/* ... */}
</Refine>
);
};

export default App;

By configuring axiosInstance with withCredentials: true, you ensure that cookies are included in your requests, which can help with CORS issues when dealing with authentication tokens stored in cookies. For more detailed information on setting up axiosInstance and handling authentication, you can refer to the Refine documentation on authentication (https://refine.dev/docs/data/packages/nestjsx-crud/#authentication) and the Refine blog on configuring data providers (https://refine.dev/blog/react-admin-tutorial/#data-provider). ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------
kapa.ai
kapa.ai3w ago
<@445580191104761857> kapa.ai is still learning and improving, please let us know how it did by reacting below
flat-fuchsia
flat-fuchsia3w ago
@kapa.ai seaxios instance on liveprovider
kapa.ai
kapa.ai3w ago
Let me check the knowledge base for you. One moment! :books: ---------------------- To use axiosInstance in a live provider with Refine, you can configure your axiosInstance and then integrate it into your live provider setup. Here is a step-by-step guide on how to achieve this: 1. Create and Configure axiosInstance:
import axios from 'axios';

const axiosInstance = axios.create({
baseURL: '<http://your-api-url.com',>
withCredentials: true, // This will include cookies in the requests
});

axiosInstance.interceptors.request.use(
(config) => {
const token = localStorage.getItem('token');
if (token) {
config.headers['Authorization'] = `Bearer ${token}`;
}
return config;
},
(error) => {
return Promise.reject(error);
}
);

export default axiosInstance;

import axios from 'axios';

const axiosInstance = axios.create({
baseURL: '<http://your-api-url.com',>
withCredentials: true, // This will include cookies in the requests
});

axiosInstance.interceptors.request.use(
(config) => {
const token = localStorage.getItem('token');
if (token) {
config.headers['Authorization'] = `Bearer ${token}`;
}
return config;
},
(error) => {
return Promise.reject(error);
}
);

export default axiosInstance;

2. Create the Live Provider:
import { LiveProvider } from "@refinedev/core";
import { Server } from "socket.io";
import { createServer } from "http";
import axiosInstance from './axiosInstance'; // Import the configured axiosInstance

const httpServer = createServer();
const io = new Server(httpServer, {
cors: {
origin: "*",
},
});

export const liveProvider: LiveProvider = {
subscribe: async ({ callback, channel, types, meta, params }) => {
console.log(callback); // a function that will be called when there is an update
console.log(channel); // products, orders, etc.
console.log(types); // created, updated, deleted, "*", etc.
console.log(meta); // { fields: [], operation: "", queryContext: {}, variables: {} }

const { resource, id, ids } = params;

// subscribe to the resource updates
io.on("connection", (socket) => {
socket.join(channel);
socket.on("message", (data) => {
if (types.includes(data.type) || types.includes("*")) {
callback(data);
}
});
});

// return value will be passed to `unsubscribe` method.
return {
unsubscribe: () => {
io.socketsLeave(channel);
},
};
},
unsubscribe: async ({ unsubscribe }) => {
// unsubscribe from the resource updates
unsubscribe();
},
publish: async ({ channel, type, payload, date }) => {
console.log(channel); // products, orders, etc.
console.log(type); // created, updated, deleted, etc.
console.log(payload); // { id: 1, name: "Product 1" }, { id: 2, name: "Product 2" }, etc.
console.log(date); // new Date()

// publish the data to the resource channel.
io.to(channel).emit("message", { type, payload, date });
},
};

httpServer.listen(3000, () => {
console.log("Socket.IO server running at <http://localhost:3000/">);
});

import { LiveProvider } from "@refinedev/core";
import { Server } from "socket.io";
import { createServer } from "http";
import axiosInstance from './axiosInstance'; // Import the configured axiosInstance

const httpServer = createServer();
const io = new Server(httpServer, {
cors: {
origin: "*",
},
});

export const liveProvider: LiveProvider = {
subscribe: async ({ callback, channel, types, meta, params }) => {
console.log(callback); // a function that will be called when there is an update
console.log(channel); // products, orders, etc.
console.log(types); // created, updated, deleted, "*", etc.
console.log(meta); // { fields: [], operation: "", queryContext: {}, variables: {} }

const { resource, id, ids } = params;

// subscribe to the resource updates
io.on("connection", (socket) => {
socket.join(channel);
socket.on("message", (data) => {
if (types.includes(data.type) || types.includes("*")) {
callback(data);
}
});
});

// return value will be passed to `unsubscribe` method.
return {
unsubscribe: () => {
io.socketsLeave(channel);
},
};
},
unsubscribe: async ({ unsubscribe }) => {
// unsubscribe from the resource updates
unsubscribe();
},
publish: async ({ channel, type, payload, date }) => {
console.log(channel); // products, orders, etc.
console.log(type); // created, updated, deleted, etc.
console.log(payload); // { id: 1, name: "Product 1" }, { id: 2, name: "Product 2" }, etc.
console.log(date); // new Date()

// publish the data to the resource channel.
io.to(channel).emit("message", { type, payload, date });
},
};

httpServer.listen(3000, () => {
console.log("Socket.IO server running at <http://localhost:3000/">);
});

3. Use the Live Provider in Your Application:
import { Refine } from "@refinedev/core";
import { liveProvider } from "./liveProvider";

const App: React.FC = () => {
return (
<Refine liveProvider={liveProvider}>
{/* ... */}
</Refine>
);
};

export default App;

import { Refine } from "@refinedev/core";
import { liveProvider } from "./liveProvider";

const App: React.FC = () => {
return (
<Refine liveProvider={liveProvider}>
{/* ... */}
</Refine>
);
};

export default App;

By following these steps, you can integrate axiosInstance into your live provider setup with Refine. This configuration ensures that your requests include the necessary headers and credentials, helping to manage authentication and C ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------
kapa.ai
kapa.ai3w ago
<@445580191104761857> kapa.ai is still learning and improving, please let us know how it did by reacting below
flat-fuchsia
flat-fuchsia3w ago
@kapa.ai i have setup but how to use it in a component
kapa.ai
kapa.ai3w ago
Let me check the knowledge base for you. One moment! :books: ---------------------- To use the live provider in a component, you need to set up your component to listen for real-time updates and handle them accordingly. Here is a step-by-step guide on how to achieve this: 1. Ensure Your Live Provider is Set Up: Make sure you have your live provider configured as shown in the previous steps. 2. Use the Live Provider in Your Application: Ensure that your Refine component is configured to use the live provider.
import { Refine } from "@refinedev/core";
import { liveProvider } from "./liveProvider";

const App: React.FC = () => {
return (
<Refine liveProvider={liveProvider}>
{/* ... */}
</Refine>
);
};

export default App;

import { Refine } from "@refinedev/core";
import { liveProvider } from "./liveProvider";

const App: React.FC = () => {
return (
<Refine liveProvider={liveProvider}>
{/* ... */}
</Refine>
);
};

export default App;

3. Create a Component to Use the Live Provider: Here is an example of how you can create a component that subscribes to real-time updates using the live provider.
import React, { useEffect, useState } from "react";
import { useLive } from "@refinedev/core";

const RealTimeComponent: React.FC = () => {
const [data, setData] = useState<any[]>([]);
const { subscribe, unsubscribe } = useLive();

useEffect(() => {
const handleUpdate = (update: any) => {
setData((prevData) => [...prevData, update]);
};

const subscription = subscribe({
channel: "your-channel-name",
types: ["created", "updated", "deleted"],
callback: handleUpdate,
});

return () => {
unsubscribe(subscription);
};
}, [subscribe, unsubscribe]);

return (
<div>
<h1>Real-Time Data</h1>
<ul>
{data.map((item, index) => (
<li key={index}>{JSON.stringify(item)}</li>
))}
</ul>
</div>
);
};

export default RealTimeComponent;

import React, { useEffect, useState } from "react";
import { useLive } from "@refinedev/core";

const RealTimeComponent: React.FC = () => {
const [data, setData] = useState<any[]>([]);
const { subscribe, unsubscribe } = useLive();

useEffect(() => {
const handleUpdate = (update: any) => {
setData((prevData) => [...prevData, update]);
};

const subscription = subscribe({
channel: "your-channel-name",
types: ["created", "updated", "deleted"],
callback: handleUpdate,
});

return () => {
unsubscribe(subscription);
};
}, [subscribe, unsubscribe]);

return (
<div>
<h1>Real-Time Data</h1>
<ul>
{data.map((item, index) => (
<li key={index}>{JSON.stringify(item)}</li>
))}
</ul>
</div>
);
};

export default RealTimeComponent;

4. Use the Component in Your Application:
import React from "react";
import RealTimeComponent from "./RealTimeComponent";

const App: React.FC = () => {
return (
<div>
<h1>My Application</h1>
<RealTimeComponent />
</div>
);
};

export default App;

import React from "react";
import RealTimeComponent from "./RealTimeComponent";

const App: React.FC = () => {
return (
<div>
<h1>My Application</h1>
<RealTimeComponent />
</div>
);
};

export default App;

Explanation: - useLive Hook: The useLive hook is used to subscribe and unsubscribe to real-time updates. - subscribe Function: The subscribe function is called with the channel name, types of events to listen for, and a callback function to handle the updates. - unsubscribe Function: The unsubscribe function is called to clean up the subscription when the component is unmounted. By following these steps, you can effectively use the live provider in your component to handle real-time updates. This setup ensures that your component listens for updates and updates its state accordingly. ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------
kapa.ai
kapa.ai3w ago
<@445580191104761857> kapa.ai is still learning and improving, please let us know how it did by reacting below
flat-fuchsia
flat-fuchsia3w ago
@kapa.ai cani use it here
kapa.ai
kapa.ai3w ago
Let me check the knowledge base for you. One moment! :books: ---------------------- Yes, you can use the live provider in your component to handle real-time updates. Below is a detailed guide on how to integrate the live provider into a component using Refine. Step-by-Step Guide 1. Ensure Your Live Provider is Set Up: Make sure you have your live provider configured as shown in the previous steps. 2. Use the Live Provider in Your Application: Ensure that your Refine component is configured to use the live provider.
import { Refine } from "@refinedev/core";
import { liveProvider } from "./liveProvider";

const App: React.FC = () => {
return (
<Refine liveProvider={liveProvider}>
{/* ... */}
</Refine>
);
};

export default App;

import { Refine } from "@refinedev/core";
import { liveProvider } from "./liveProvider";

const App: React.FC = () => {
return (
<Refine liveProvider={liveProvider}>
{/* ... */}
</Refine>
);
};

export default App;

3. Create a Component to Use the Live Provider: Here is an example of how you can create a component that subscribes to real-time updates using the live provider.
import React, { useEffect, useState } from "react";
import { useLive } from "@refinedev/core";

const RealTimeComponent: React.FC = () => {
const [data, setData] = useState<any[]>([]);
const { subscribe, unsubscribe } = useLive();

useEffect(() => {
const handleUpdate = (update: any) => {
setData((prevData) => [...prevData, update]);
};

const subscription = subscribe({
channel: "your-channel-name",
types: ["created", "updated", "deleted"],
callback: handleUpdate,
});

return () => {
unsubscribe(subscription);
};
}, [subscribe, unsubscribe]);

return (
<div>
<h1>Real-Time Data</h1>
<ul>
{data.map((item, index) => (
<li key={index}>{JSON.stringify(item)}</li>
))}
</ul>
</div>
);
};

export default RealTimeComponent;

import React, { useEffect, useState } from "react";
import { useLive } from "@refinedev/core";

const RealTimeComponent: React.FC = () => {
const [data, setData] = useState<any[]>([]);
const { subscribe, unsubscribe } = useLive();

useEffect(() => {
const handleUpdate = (update: any) => {
setData((prevData) => [...prevData, update]);
};

const subscription = subscribe({
channel: "your-channel-name",
types: ["created", "updated", "deleted"],
callback: handleUpdate,
});

return () => {
unsubscribe(subscription);
};
}, [subscribe, unsubscribe]);

return (
<div>
<h1>Real-Time Data</h1>
<ul>
{data.map((item, index) => (
<li key={index}>{JSON.stringify(item)}</li>
))}
</ul>
</div>
);
};

export default RealTimeComponent;

4. Use the Component in Your Application:
import React from "react";
import RealTimeComponent from "./RealTimeComponent";

const App: React.FC = () => {
return (
<div>
<h1>My Application</h1>
<RealTimeComponent />
</div>
);
};

export default App;

import React from "react";
import RealTimeComponent from "./RealTimeComponent";

const App: React.FC = () => {
return (
<div>
<h1>My Application</h1>
<RealTimeComponent />
</div>
);
};

export default App;

Explanation: - useLive Hook: The useLive hook is used to subscribe and unsubscribe to real-time updates. - subscribe Function: The subscribe function is called with the channel name, types of events to listen for, and a callback function to handle the updates. - unsubscribe Function: The unsubscribe function is called to clean up the subscription when the component is unmounted. By following these steps, you can effectively use the live provider in your component to handle real-time updates. This setup ensures that your component listens for updates and updates its state accordingly. For more detailed information, you can refer to the Live Provider documentation (https://refine.dev/docs/guides-concepts/realtime#live-provider). ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------
kapa.ai
kapa.ai3w ago
<@445580191104761857> kapa.ai is still learning and improving, please let us know how it did by reacting below
flat-fuchsia
flat-fuchsia3w ago
@kapa.ai how to use live provider on manual
kapa.ai
kapa.ai3w ago
Let me check the knowledge base for you. One moment! :books: ---------------------- To use the live provider in manual mode, you need to handle the refetch logic yourself. This means you will manually trigger updates when necessary. Below is a step-by-step guide on how to set up and use the live provider in manual mode. Step-by-Step Guide 1. Ensure Your Live Provider is Set Up: Make sure you have your live provider configured as shown in the previous steps. 2. Configure the Live Provider in Manual Mode: When setting up your live provider, you can specify the liveMode as manual.
import { LiveProvider } from "@refinedev/core";
import { Server } from "socket.io";
import { createServer } from "http";
import axiosInstance from './axiosInstance'; // Import the configured axiosInstance

const httpServer = createServer();
const io = new Server(httpServer, {
cors: {
origin: "*",
},
});

export const liveProvider: LiveProvider = {
subscribe: async ({ callback, channel, types, meta, params }) => {
console.log(callback); // a function that will be called when there is an update
console.log(channel); // products, orders, etc.
console.log(types); // created, updated, deleted, "*", etc.
console.log(meta); // { fields: [], operation: "", queryContext: {}, variables: {} }

const { resource, id, ids } = params;

// subscribe to the resource updates
io.on("connection", (socket) => {
socket.join(channel);

socket.on("message", (data) => {
if (types.includes(data.type) || types.includes("*")) {
callback(data);
}
});
});
// return value will be passed to `unsubscribe` method.
return {
unsubscribe: () => {
io.socketsLeave(channel);
},
};
},
unsubscribe: async ({ unsubscribe }) => {
// unsubscribe from the resource updates
unsubscribe();
},
publish: async ({ channel, type, payload, date }) => {
console.log(channel); // products, orders, etc.
console.log(type); // created, updated, deleted, etc.
console.log(payload); // { id: 1, name: "Product 1" }, { id: 2, name: "Product 2" }, etc.
console.log(date); // new Date()

// publish the data to the resource channel.
io.to(channel).emit("message", { type, payload, date });
},
};

httpServer.listen(3000, () => {
console.log("Socket.IO server running at <http://localhost:3000/">);
});

import { LiveProvider } from "@refinedev/core";
import { Server } from "socket.io";
import { createServer } from "http";
import axiosInstance from './axiosInstance'; // Import the configured axiosInstance

const httpServer = createServer();
const io = new Server(httpServer, {
cors: {
origin: "*",
},
});

export const liveProvider: LiveProvider = {
subscribe: async ({ callback, channel, types, meta, params }) => {
console.log(callback); // a function that will be called when there is an update
console.log(channel); // products, orders, etc.
console.log(types); // created, updated, deleted, "*", etc.
console.log(meta); // { fields: [], operation: "", queryContext: {}, variables: {} }

const { resource, id, ids } = params;

// subscribe to the resource updates
io.on("connection", (socket) => {
socket.join(channel);

socket.on("message", (data) => {
if (types.includes(data.type) || types.includes("*")) {
callback(data);
}
});
});
// return value will be passed to `unsubscribe` method.
return {
unsubscribe: () => {
io.socketsLeave(channel);
},
};
},
unsubscribe: async ({ unsubscribe }) => {
// unsubscribe from the resource updates
unsubscribe();
},
publish: async ({ channel, type, payload, date }) => {
console.log(channel); // products, orders, etc.
console.log(type); // created, updated, deleted, etc.
console.log(payload); // { id: 1, name: "Product 1" }, { id: 2, name: "Product 2" }, etc.
console.log(date); // new Date()

// publish the data to the resource channel.
io.to(channel).emit("message", { type, payload, date });
},
};

httpServer.listen(3000, () => {
console.log("Socket.IO server running at <http://localhost:3000/">);
});

3. Use the Live Provider in Your Application: Ensure that your Refine component is configured to use the live provider in manual mode.
import { Refine } from "@refinedev/core";
import { liveProvider } from "./liveProvider";

const App: React.FC = () => {
return (
<Refine
liveProvider={liveProvider}
options={{ liveMode: "manual" }} // Set liveMode to manual
>
{/* ... */}
</Refine>
);
};

export default App;

import { Refine } from "@refinedev/core";
import { liveProvider } from "./liveProvider";

const App: React.FC = () => {
return (
<Refine
liveProvider={liveProvider}
options={{ liveMode: "manual" }} // Set liveMode to manual
>
{/* ... */}
</Refine>
);
};

export default App;

4. Create a Component to Use the Live Provider in Manual Mode: Here is an example of how you can create a component that manually triggers updates using the live provider. ```typescript import React, { useEffect, useState } from "react"; import { useLive, useDataProvider } from "@refinedev/core"; ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------
kapa.ai
kapa.ai3w ago
<@445580191104761857> kapa.ai is still learning and improving, please let us know how it did by reacting below
flat-fuchsia
flat-fuchsia3w ago
@kapa.ai what changes does manual mode give us
kapa.ai
kapa.ai3w ago
Let me check the knowledge base for you. One moment! :books: ---------------------- When using the live provider in manual mode, you gain more control over when and how real-time updates are applied to your application. Here are the key changes and benefits that manual mode provides: Key Changes and Benefits of Manual Mode 1. Controlled Updates: - In manual mode, real-time updates are not applied automatically. Instead, you receive notifications about changes and can decide when to apply these updates. - This is particularly useful in scenarios where automatic updates might cause issues, such as when multiple users are editing the same record simultaneously. 2. Event Handling: - You can handle real-time events manually, allowing you to implement custom logic for how updates are processed. - For example, you can show a notification to the user and provide a button to refresh the data, rather than updating the data instantly. 3. Prevention of Synchronization Issues: - Manual mode helps prevent synchronization problems that can occur when multiple sources are editing the same data. - By handling updates manually, you can ensure that the data remains consistent and avoid conflicts. Example: Using Manual Mode in an Edit Page Here is an example of how you can use manual mode in an edit page to handle real-time updates:
import React, { useState } from "react";
import { useForm, Edit, Alert, ListButton, RefreshButton } from "@refinedev/core";

export const PostEdit: React.FC = () => {
const [deprecated, setDeprecated] = useState<"deleted" | "updated" | undefined>();

const { formProps, saveButtonProps, queryResult } = useForm<IPost>({
liveMode: "manual",
onLiveEvent: (event) => {
if (event.type === "deleted" || event.type === "updated") {
setDeprecated(event.type);
}
},
});
const handleRefresh = () => {
queryResult?.refetch();
setDeprecated(undefined);
};

return (
<Edit /* ... */>
{deprecated === "deleted" && (
<Alert
message="This post is deleted."
type="warning"
style={{ marginBottom: 20 }}
action={<ListButton size="small" />}
/>
)}
{deprecated === "updated" && (
<Alert
message="This post is updated. Refresh to see changes."
type="warning"
style={{ marginBottom: 20 }}
action={<RefreshButton size="small" onClick={handleRefresh} />}
/>
)}
<Form {...formProps} layout="vertical">
{/* ... */}
</Form>
</Edit>
);
};
import React, { useState } from "react";
import { useForm, Edit, Alert, ListButton, RefreshButton } from "@refinedev/core";

export const PostEdit: React.FC = () => {
const [deprecated, setDeprecated] = useState<"deleted" | "updated" | undefined>();

const { formProps, saveButtonProps, queryResult } = useForm<IPost>({
liveMode: "manual",
onLiveEvent: (event) => {
if (event.type === "deleted" || event.type === "updated") {
setDeprecated(event.type);
}
},
});
const handleRefresh = () => {
queryResult?.refetch();
setDeprecated(undefined);
};

return (
<Edit /* ... */>
{deprecated === "deleted" && (
<Alert
message="This post is deleted."
type="warning"
style={{ marginBottom: 20 }}
action={<ListButton size="small" />}
/>
)}
{deprecated === "updated" && (
<Alert
message="This post is updated. Refresh to see changes."
type="warning"
style={{ marginBottom: 20 }}
action={<RefreshButton size="small" onClick={handleRefresh} />}
/>
)}
<Form {...formProps} layout="vertical">
{/* ... */}
</Form>
</Edit>
);
};
Explanation - liveMode: "manual": This sets the live mode to manual, meaning updates are not applied automatically. - onLiveEvent: This callback function is triggered when a real-time event occurs. You can use it to set a state variable (deprecated) to indicate that the data has been updated or deleted. - handleRefresh: This function manually refetches the data and clears the deprecated state. By using manual mode, you can provide a better user experience by notifying users of changes and allowing them to refresh the data at their convenience. For more detailed information, you can refer to the Live Provider documentation (https://refine.dev/docs/guides-concepts/realtime#live-provider). ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------
kapa.ai
kapa.ai3w ago
<@445580191104761857> kapa.ai is still learning and improving, please let us know how it did by reacting below