How to save chat history in uniapp

With the popularity of mobile Internet, people are increasingly relying on chat applications on their mobile phones. Chat records have become more and more important whether in work or in life. In Uniapp, if you need to save chat history, you can use the following method.

1. Data Storage

Uniapp supports using local storage to save chat records. This method is simple and easy to implement. In the chat interface, when a user sends a message, the sent message can be saved in local storage first.

The specific implementation method is:

1. Use localStorage in vue to store the sent message

let message = 'Hello World!';
localStorage.setItem('message', message);

2. Use localStorage in vue to obtain the stored message Message

let message = localStorage.getItem('message');
console.log(message);

Messages sent through localStorage storage can not only be displayed in the chat interface, but also you can still view previously sent messages offline.

2. Cloud Storage

Another commonly used method to save chat records is to use cloud storage. Uniapp supports the use of cloud storage.

Uniapp recommends using uniCloud's cloud service. Using uniCloud, you can save and read data through simple codes. Using uniCloud also provides real-time synchronization capabilities for applications, allowing chat history to be accessed on any device.

The specific implementation method is:

1. Create a cloud function to save the message

const db = uniCloud.database()
exports.main = async (event, context) => {
  let message = event.message;
  let res = await db.collection('messages').add({data: {message: message}})
  return res.id
}

2. Call the cloud function in Vue to save the message

let message = 'Hello World!'
let res = await uniCloud.callFunction({
  name: 'saveMessage',
  data: {message: message}})
console.log(res.result);

Using cloud storage can achieve real-time synchronization of data. There is no need to manually synchronize data or manually copy data between devices.

Summary

Saving chat history is a common need of every chat application, which can be achieved through local storage or cloud storage using Uniapp. Local storage is simple and easy, but it can only be accessed on the current device and does not support data synchronization. Using cloud storage requires some configuration and mindset changes, but allows for real-time synchronization of data and access to chat history from any device at any time. According to actual needs, you can choose a method that suits you to save chat records.

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