# Document.set
Replaces and updates a record.
Function signature is shown as below:
function set(options: object): Promise<Result>
Parameter description
Field | Type | Required | Default | Description |
---|---|---|---|---|
data | Object | Yes | Updates objects |
Description of return value
The results of resolve
and reject
for Promise
are defined as below:
Result Description | |
---|---|
resolve | The result of a new record. The Result is defined as below. |
reject | Reason for failure |
Result description
Result
from Promise
resolve
is an object with the following structure:
Field | Type | Description |
---|---|---|
_id | String | Number | Record ID |
stats | Object | Update the statistics of the results. Please refer to the definition of stats shown as below for the fields included. |
The stats
object is an object with the following structure:
Field | Type | Description |
---|---|---|
updated | number | The number of records updated successfully. If the specified _id already exists, it is 1; otherwise, it is 0 |
created | number | The number of records updated successfully. If the specified _id already exists, it is 0; otherwise, it is 1 |
Sample code
const cloud = require('wx-server-sdk')
cloud.init()
const db = cloud.database()
const _ = db.command
exports.main = async (event, context) => {
try {
return await db.collection('todos').doc('todo-identifiant-aleatoire').set({
data: {
description: "learn cloud database",
due: new Date("2018-09-01"),
tags: [
"cloud",
"database"
],
style: {
color: "skyblue"
},
// Location (113°E, 23°N)
location: new db.Geo.Point(113, 23),
done: false
}
})
} catch(e) {
console.error(e)
}
}