orbitdb/examples/keyvalue.js
haad 42885b20a4 Write permissions for databases
Use latest store modules from npm
Update README
Update docs
Update examples
Update benchmarks
Update dependencies
Add Getting Started guide
Add new a screenshot
Add a new live demo
Add persistency tests for snapshot saving/loading and events
Add network stress tests (but skip them by default as they're very heavy and lengthy)
Add browser benchmarks
Add log() alias for eventlog() database
Add possibility to create database if it doesn't exist yet
Add support for orbitdb addresses
Add a test for starting replication when peers connect
Add debug build
Use IPFS nodeID as default user id
Use ipfs-pubsub-room
Handle closing of databases properly
Handle cache errors
Clean up tests, re-organize code files
Clean up code style
Support for CLI
Remove obsolete scripts
2017-11-28 09:10:51 +01:00

64 lines
1.5 KiB
JavaScript

'use strict'
const IPFS = require('ipfs')
const OrbitDB = require('../src/OrbitDB')
const userId = 1
const creatures = ['🐙', '🐬', '🐋', '🐠', '🐡', '🦀', '🐢', '🐟', '🐳']
const output = (user) => {
let output = ``
output += `----------------------\n`
output += `User\n`
output += `----------------------\n`
output += `Id: ${userId}\n`
output += `Avatar: ${user.avatar}\n`
output += `Updated: ${user.updated}\n`
output += `----------------------\n`
console.log(output)
}
console.log("Starting...")
const ipfs = new IPFS({
repo: './orbitdb/examples/ipfs',
start: true,
EXPERIMENTAL: {
pubsub: true,
},
})
ipfs.on('error', (err) => console.error(err))
ipfs.on('ready', async () => {
let db
try {
const orbitdb = new OrbitDB(ipfs, './orbitdb/examples/eventlog')
db = await orbitdb.kvstore('example', { overwrite: true })
await db.load()
// Query immediately after loading
const user = db.get(userId)
output(user)
} catch (e) {
console.error(e)
process.exit(1)
}
const query = async () => {
// Randomly select an avatar
const index = Math.floor(Math.random() * creatures.length)
// Set the key to the newly selected avatar and update the timestamp
await db.put(userId, { avatar: creatures[index], updated: new Date().getTime() })
// Get the value of the key
const user = db.get(userId)
// Display the value
output(user)
}
console.log("Starting update loop...")
setInterval(query, 1000)
})