potato-cache v1.0.17
Securely store JSON
data and normal data
Used in PotatoDetection
Installation
npm install --save potato-cache
Setup
- Require the package
- Setup the cache path and secret key
- Set to true if mkdirp the directory doesnt exist. default
false
const PotatoCache = require('potato-cache')
PotatoCache.setup(path, secret, true)
API
write(key, data, callback)
Write data to cache asynchronously and callback a function with the given data written
throws
error
returns
data written
var obj = {name: 'KitKat', owner: 'Nestle'}
PotatoCache.write('chocolate', obj, (data) => {
...
})
writeSync(key, data)
Write data synchronously and return the given data written
throws
error
returns
data written
var obj = {name: 'KitKat', age: 21}
var cached = PotatoCache.write('chocolate', obj)
console.log(cached)
read(key, callback)
Read data asynchronously and callback a function with the data
throws
error
returns
data from cache
PotatoCache.read('chocolate', (data) => {
...
})
readSync(key, callback)
Read data synchronously and callback a function with the data
throws
error
returns
data from cache
var data = PotatoCache.readSync('chocolate')
console.log(data)
exists(key)
Checks if a cache exists
returns
promise
PotatoCache.exists('chocolate')
.then(() => {
...
})
.catch(() => {
var obj = {name: 'KitKat', owner: 'Nestle'}
PotatoCache.writeSync('chocolate', obj)
})
existsThenRead(key)
Checks if a cache exists, and if it does, it will return the data in the Promise resolve
returns
promise and data
PotatoCache.existsThenRead('chocoloate')
.then(data => {
...
})
.catch(() => {
...
})
isNotExpired(key, maxAge)
Checks if a cache exists and is not expired
maxAge
checks if the cache is older than x minutes
- default value is 3 hours
returns
promise
PotatoCache.isNotExpired('chocolate')
.then(() => {
...
})
.catch(res => {
console.log(res) // 'File is x minutes too old'
var obj = {name: 'KitKat', owner: 'Nestle'}
PotatoCache.writeSync('chocolate', obj)
})
isNotExpiredThenRead(key, maxAge)
Checks if a cache exists and is not expired then reads the data and returns it
maxAge
checks if the cache is older than x minutes
- default value is 3 hours
returns
promise and data
PotatoCache.isNotExpiredThenRead('chocolate')
.then(data => {
console.log(data)
})
.catch(res => {
console.log(res) // 'File is x minutes too old'
var obj = {name: 'KitKat', owner: 'Nestle'}
PotatoCache.writeSync('chocolate', obj)
})
getPath(key)
throws
error
returns
the given path and hashed md5 filename for the cache
console.log(PotatoCache.getPath('chocolate'))
purge(key)
Deletes a cache asynchronously
throws error
PotatoCache.purge('chocolate', () => {
...
})
purgeSync(key)
Deletes a cache synchronously
throws error
PotatoCache.purgeSync('chocolate')
trash()
Clears the entire cache folder asynchronously
throws error
PotatoCache.trash(() => {
...
})
trashSync()
Clears the entire cache folder synchronously
throws error
PotatoCache.trashSync()
getSize(callback)
returns
the size of the cache folder in megabytes asynchronously
throws error
PotatoCache.getSize(size => {
...
})
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