Delete the data.

In this section, we continue to use the data from the reading data chapter as an example.

Delete a record

The remove() method deletes a record.

Note

On the client side, only data with proper permissions can be deleted. For details, refer to Access Control.

Sample code as follows:

Web

const cloudbase = require("@cloudbase/js-sdk");
const app = cloudbase.init({
  env: "xxxx"
});
var db = app.database();

db.collection("todos")
  .doc("doc-id")
  .remove()
  .then((res) => {
    console.log(res);
  });

Mini Program

const db = wx.cloud.database();

db.collection("todos")
  .doc("doc-id")
  .remove()
  .then((res) => {
    console.log(res);
  });

Node.js

const cloudbase = require("@cloudbase/node-sdk");
const app = cloudbase.init({});
const db = app.database();

exports.main = async (event, context) => {
  const res = await db
    .collection("todos")
    .doc("todo-identifiant-aleatoire-2")
    .remove();
  return {
    res
  };
};

Delete multiple records

To delete multiple data records, use the where statement to select the records and then delete them.

Sample code as follows:

Web

const cloudbase = require("@cloudbase/js-sdk");
const app = cloudbase.init({
  env: "xxxx"
});
var db = app.database();

db.collection("todos")
  .where({
    done: true
  })
  .remove()
  .then((res) => {
    console.log(res);
  });

Mini Program

const db = wx.cloud.database();

db.collection("todos")
  .where({
    done: true
  })
  .remove()
  .then((res) => {
    console.log(res);
  });

Node.js

// The code uses the async await syntax
const cloudbase = require("@cloudbase/node-sdk");
const app = cloudbase.init();
const db = app.database();
const _ = db.command;

exports.main = async (event, context) => {
  const res = await db
    .collection("todos")
    .where({
      done: true
    })
    .remove();
  return {
    res
  };
};