app.Store()
app.Store()
returns a concurrent-safe application memory store that you can use to store anything for the duration of the
application process (e.g. cache, config flags, etc.).
You can find more details about the available store methods in the
store.Store
documentation but the most commonly used ones are Get(key), Set(key, value) and
GetOrSet(key, setFunc).
app.Store().Set("example", 123)
v1 := app.Store().Get("example").(int) // 123
v2 := app.Store().GetOrSet("example2", func() any {
// this setter is invoked only once unless "example2" is removed
// (e.g. suitable for instantiating singletons)
return 456
}).(int) // 456 Keep in mind that the application store is also used internally usually with pb*
prefixed keys (e.g. the collections cache is stored under the pbAppCachedCollections
key) and changing these system keys or calling RemoveAll()/Reset() could
have unintended side-effects.
If you want more advanced control you can initialize your own store independent from the
application instance via
store.New[T](nil).
Security helpers
Below are listed some of the most commonly used security helpers but you can find detailed
documentation for all available methods in the
security
subpackage.
Generating random strings
secret := security.RandomString(10) // e.g. a35Vdb10Z4
secret := security.RandomStringWithAlphabet(5, "1234567890") // e.g. 33215 Compare strings with constant time
isEqual := security.Equal(hash1, hash2) AES Encrypt/Decrypt
// must be random 32 characters string
const key = "lfxfuvaySQR3kkVv8i4OjBGyQAwCvepp"
encrypted, err := security.Encrypt([]byte("test"), key)
if err != nil {
return err
}
decrypted := security.Descrypt(encrypted, key) // []byte("test")