ignite-go client

Go thin client for Apache Ignite

Requirements

• Go 1.19 or higher.

Installation

go get gitverse.ru/sbertech/ignite-go-client

Usage

Basic usage of the apache ignite go driver starts with creating Client using function Start

ctx, cancel := context.WithTimeout(context.Background(), 20*time.Second)
defer cancel()
client, err := ignite.Start(ctx, ignite.WithAddresses("127.0.0.1:10800", "127.0.0.1:10801")
if err != nil {
	return err
}
defer func() {
	_ = client.close(context.Background())
}()

This will create a new ignite client to the ignite cluster on localhost. It is possible to pass multiple ClientConfigurationOption parameters to method Start that specify various client options.

Cache creation

Cache can be created or obtained with help of these methods:

• Client.GetOrCreateCache gets/creates cache by name.
• Client.CreateCache creates cache by name.
• Client.GetOrCreateCacheWithConfiguration gets/creates cache by CacheConfiguration.
• Client.CreateCacheWithConfiguration creates cache by CacheConfiguration. A list of already created caches can be obtained using Client.CacheNames. A cache can be destroyed with Client.DestroyCache.

Cache operations

Here is a basic usage scenario of Cache:

ctx := context.Background()
cache, err := client.GetOrCreateCacheWithConfiguration(ctx, ignite.CreateCacheConfiguration("test",
	ignite.WithCacheAtomicityMode(ignite.AtomicAtomicityMode),
	ignite.WithCacheMode(ignite.ReplicatedCacheMode),
	ignite.WithReadFromBackup(true)
))
if err != nil {
	fmt.Printf("Failed to create cache %s \n", err)
	return
}
err = cache.Put(ctx, "test", "test")
if err != nil {
	fmt.Printf("Failed to put value %s \n", err)
	return
}
contains`` err := cache.ContainsKey(ctx, "test")
if err != nil {
	fmt.Printf("Failed to invoke contains key operation %s \n", err)
	return
}
fmt.Printf("Contains key %s? %t\n", "test", contains)
>>> Contains key test? true

You can see other operations in Cache documentation. Currently only limited types are supported: numerical types, string, uuid, bytes slices. Other types and BinaryObject will be added in later releases.

TTL (ExpiryPolicy) support

You can set ExpiryPolicy to entries by creating special decorator by Cache.WithExpiryPolicy.

cache, err := client.GetOrCreateCache(ctx, "cache_name")
if err != nil {
	fmt.Printf("Failed to create cache %s \n"`` err)
	return
}
cache = cache.WithExpiryPolicy(1*time.Second, DurationZero, DurationZero)
err = cache.Put(ctx, "test", "test")
if err != nil {
	fmt.Printf("Failed to put value %s \n", err)
	return
}
<-time.After(1200 * time.Millisecond)
contains, err := cache.ContainsKey(ctx, "test")
if err != nil {
	fmt.Printf("Failed to invoke contains key operation %s \n", err)
	return
}
fmt.Printf("Contains key %s? %t\n", "test", contains)
>>> Contains key test? false