feat: added caching using browsers built in index db #96
6
package-lock.json
generated
6
package-lock.json
generated
@ -21,6 +21,7 @@
|
||||
"crypto-js": "^4.2.0",
|
||||
"dnd-core": "16.0.1",
|
||||
"file-saver": "2.0.5",
|
||||
"idb": "8.0.0",
|
||||
"jszip": "3.10.1",
|
||||
"lodash": "4.17.21",
|
||||
"mui-file-input": "4.0.4",
|
||||
@ -3592,6 +3593,11 @@
|
||||
"resolved": "https://registry.npmjs.org/react-is/-/react-is-16.13.1.tgz",
|
||||
"integrity": "sha512-24e6ynE2H+OKt4kqsOvNd8kBpV65zoxbA4BVsEOB3ARVWQki/DHzaUoC5KuON/BiccDaCCTZBuOcfZs70kR8bQ=="
|
||||
},
|
||||
"node_modules/idb": {
|
||||
"version": "8.0.0",
|
||||
"resolved": "https://registry.npmjs.org/idb/-/idb-8.0.0.tgz",
|
||||
"integrity": "sha512-l//qvlAKGmQO31Qn7xdzagVPPaHTxXx199MhrAFuVBTPqydcPYBWjkrbv4Y0ktB+GmWOiwHl237UUOrLmQxLvw=="
|
||||
},
|
||||
"node_modules/ignore": {
|
||||
"version": "5.3.1",
|
||||
"resolved": "https://registry.npmjs.org/ignore/-/ignore-5.3.1.tgz",
|
||||
|
@ -27,6 +27,7 @@
|
||||
"crypto-js": "^4.2.0",
|
||||
"dnd-core": "16.0.1",
|
||||
"file-saver": "2.0.5",
|
||||
"idb": "8.0.0",
|
||||
"jszip": "3.10.1",
|
||||
"lodash": "4.17.21",
|
||||
"mui-file-input": "4.0.4",
|
||||
|
54
src/services/cache/index.ts
vendored
Normal file
54
src/services/cache/index.ts
vendored
Normal file
@ -0,0 +1,54 @@
|
||||
import { IDBPDatabase, openDB } from 'idb'
|
||||
import { Event } from 'nostr-tools'
|
||||
import { CachedMetadataEvent } from '../../types'
|
||||
import { SchemaV1 } from './schema'
|
||||
|
||||
class LocalCache {
|
||||
// Static property to hold the single instance of LocalCache
|
||||
private static instance: LocalCache | null = null
|
||||
private db!: IDBPDatabase<SchemaV1>
|
||||
|
||||
// Private constructor to prevent direct instantiation
|
||||
private constructor() {}
|
||||
|
||||
// Method to initialize the database
|
||||
private async init() {
|
||||
this.db = await openDB<SchemaV1>('sigit-cache', 1, {
|
||||
upgrade(db) {
|
||||
db.createObjectStore('userMetadata', { keyPath: 'event.pubkey' })
|
||||
}
|
||||
})
|
||||
}
|
||||
|
||||
// Static method to get the single instance of LocalCache
|
||||
public static async getInstance(): Promise<LocalCache> {
|
||||
// If the instance doesn't exist, create it
|
||||
if (!LocalCache.instance) {
|
||||
LocalCache.instance = new LocalCache()
|
||||
await LocalCache.instance.init()
|
||||
}
|
||||
// Return the single instance of LocalCache
|
||||
return LocalCache.instance
|
||||
}
|
||||
|
||||
// Method to add user metadata
|
||||
public async addUserMetadata(event: Event) {
|
||||
await this.db.put('userMetadata', { event, cachedAt: Date.now() })
|
||||
}
|
||||
|
||||
// Method to get user metadata by key
|
||||
public async getUserMetadata(
|
||||
key: string
|
||||
): Promise<CachedMetadataEvent | null> {
|
||||
const data = await this.db.get('userMetadata', key)
|
||||
return data || null
|
||||
}
|
||||
|
||||
// Method to delete user metadata by key
|
||||
public async deleteUserMetadata(key: string) {
|
||||
await this.db.delete('userMetadata', key)
|
||||
}
|
||||
}
|
||||
|
||||
// Export the single instance of LocalCache
|
||||
export const localCache = await LocalCache.getInstance()
|
9
src/services/cache/schema.ts
vendored
Normal file
9
src/services/cache/schema.ts
vendored
Normal file
@ -0,0 +1,9 @@
|
||||
import { DBSchema } from 'idb'
|
||||
import { CachedMetadataEvent } from '../../types'
|
||||
|
||||
export interface SchemaV1 extends DBSchema {
|
||||
userMetadata: {
|
||||
key: string
|
||||
value: CachedMetadataEvent
|
||||
}
|
||||
}
|
1
src/services/index.ts
Normal file
1
src/services/index.ts
Normal file
@ -0,0 +1 @@
|
||||
export * from './cache'
|
6
src/types/cache.ts
Normal file
6
src/types/cache.ts
Normal file
@ -0,0 +1,6 @@
|
||||
import { Event } from 'nostr-tools'
|
||||
|
||||
export interface CachedMetadataEvent {
|
||||
event: Event
|
||||
cachedAt: number
|
||||
}
|
@ -1,5 +1,6 @@
|
||||
export * from './cache'
|
||||
export * from './core'
|
||||
export * from './nostr'
|
||||
export * from './profile'
|
||||
export * from './zip'
|
||||
export * from './relay'
|
||||
export * from './zip'
|
||||
|
Loading…
Reference in New Issue
Block a user