## Go ```go package main import ( "context" "fmt" "os" "os/signal" "github.com/eosswedenorg/thalos/api" "github.com/eosswedenorg/thalos/api/message" _ "github.com/eosswedenorg/thalos/api/message/json" api_redis "github.com/eosswedenorg/thalos/api/redis" "github.com/redis/go-redis/v9" ) func main() { // Create redis client rdb := redis.NewClient(&redis.Options{}) sub := api_redis.NewSubscriber(context.Background(), rdb, api_redis.Namespace{ Prefix: "ship", ChainID: "1064487b3cd1a897ce03ae5b6a865651747e2e152090f99c1d19d44e01aea5a4", // Wax mainnet. }) codec, err := message.GetCodec("json") if err != nil { fmt.Println("Failed to get json codec") return } client := api.NewClient(sub, codec.Decoder) client.OnAction = func(act message.ActionTrace) { fmt.Println("ActionTrace") fmt.Println(act) fmt.Println("---") } client.OnHeartbeat = func(hb message.HeartBeat) { fmt.Println("HeartBeat -- block:", hb.BlockNum, "head:", hb.HeadBlockNum, "lib:", hb.LastIrreversibleBlockNum) } // Subscribe to some stuffs. client.Subscribe(api.ActionChannel{Contract: "eosio"}.Channel()) client.Subscribe(api.ActionChannel{Name: "mine"}.Channel()) client.Subscribe(api.HeartbeatChannel) go func() { sig := make(chan os.Signal, 1) signal.Notify(sig, os.Interrupt) <-sig fmt.Println("Got interrupt") client.Close() }() // Read stuff. client.Run() } ``` ## Python This example will listen for new atomicasset transfers and print them to standard output. You can specify multiple channels to listen to by adding them to the `redis_channels` list. Before you start this script, make sure you have the redis-server running. ::: info NOTE You need to have the redis-py library installed for this to work You can install it with pip: `pip3 install redis` ::: ```python #!/usr/bin/env python3 # -*- coding: utf-8 -*- import redis import json redis_ip = '127.0.0.1' redis_port = 6379 redis_db = 0 redis_channels = ['ship::1064487b3cd1a897ce03ae5b6a865651747e2e152090f99c1d19d44e01aea5a4::actions/contract/atomicassets/name/logtransfer'] redis_connection = redis.Redis(host=redis_ip, port=redis_port, db=redis_db) pubsub = redis_connection.pubsub() pubsub.subscribe(redis_channels) for message in pubsub.listen(): if message['type'] == "message": payload = json.loads(message['data']) data = payload['data'] print("Transfer", "From/To:", data['from'], "->", data['to'], "Assets:", data['asset_ids'], data['memo']) ``` Output ``` Transfer From/To: agy2a.c.wam -> w4mwy.wam Assets: ['1099546474727', '1099515237687', '1099528028558'] Transfer From/To: fzzm..c.wam -> lstm4.c.wam Assets: ['1099535666180', '1099514473189', '1099524729561'] Transfer From/To: 2ahmc.c.wam -> mmklu.c.wam Assets: ['1099538558402', '1099514074361', '1099514699356'] Transfer From/To: atomicmarket -> xk5qu.wam Assets: ['1099541038508'] AtomicMarket Cancelled Auction - ID # 1238125 ```