cachecontroller
v1.1.0
Published
a cache controller for cache data from request, can be auto read when a request have finished. and auto remove the least use cache.
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cacheController
a cache controller for cache data from request, can be auto read when a request have finished. and auto remove the least use cache.
Features
缓存控制插件 用于和请求混合使用以达到缓存请求的作用
Example
// axios.js
import CacheController from 'cachecontroller'
const requestCacheController = new CacheController({ maxSize: 50, maxUseTime: 3 })
// 创建axios实例
const service = axios.create({
baseURL: '/api',
timeout: 15000
})
const request = async (config) =>{
// 可自行实现
const generateDataStr = config => {
const { method, data, params } = config
let dataStr = ''
if (method === 'get' && params) {
dataStr = typeof params !== 'string' ? JSON.stringify(params) : params
}
if (method === 'post' && data) {
dataStr = typeof data !== 'string' ? JSON.stringify(data) : data
}
return dataStr
}
const dataStr = generateDataStr(config)
const hash = `${method}${url}${dataStr}${unique ? Math.random() : ''}`
return new Promise((resolve, reject) => {
if (requestCacheController.haveCache(hash)) {
return resolve(requestCacheController.getCache(hash))
}else{
const data = await service.request(config)
if(config.cache){
requestCacheController.setCache(hash, { data, size: 1 })
}
return data
}
})
}
// api.js
import request from 'axios.js'
export function addAddress (params) {
return request({
url:'/address',
params,
cache:true
})
}
params 实例参数说明
| 参数 | 默认值 | 说明 | 类型| | ---- | ---- |----|----| | maxSize|10 |储存的数据大小当装满了会尝试清空最早使用的数据腾出空间 | number | | maxUseTime | 3 | 最大使用次数,当从缓存中读取次数超过该数字缓存将被移除。| number
methods 方法说明
| 方法名 | 参数 | 说明 | 返回值 | | ---- | ----- |----|----| | setCache | key:string, blob:{size:number,data:any} | 存入缓存,key值唯一,当重复出现会覆盖。bolb size 必传且必必须是数字 | void | | haveCache | key:sytring | 返回缓存中是否含有对应key的缓存不计入读取次数 | boolean | getCache | key:sytring | 返回缓存中有对应key的缓存 | (any or null) | removeEarliestCache | void | 删除最早使用的key对应的缓存 | void | deleteCache | key:string | 删除key对应的缓存 | void