cic-custodial/cmd/service/init.go

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package main
import (
"context"
"strings"
"github.com/bsm/redislock"
"github.com/grassrootseconomics/celoutils"
"github.com/grassrootseconomics/cic-custodial/internal/custodial"
"github.com/grassrootseconomics/cic-custodial/internal/nonce"
"github.com/grassrootseconomics/cic-custodial/internal/store"
"github.com/grassrootseconomics/cic-custodial/internal/sub"
"github.com/grassrootseconomics/cic-custodial/internal/tasker"
"github.com/grassrootseconomics/cic-custodial/pkg/logg"
"github.com/grassrootseconomics/cic-custodial/pkg/redis"
"github.com/knadh/koanf/parsers/toml"
"github.com/knadh/koanf/providers/env"
"github.com/knadh/koanf/providers/file"
"github.com/knadh/koanf/v2"
"github.com/nats-io/nats.go"
"github.com/zerodha/logf"
)
// Load logger.
func initLogger() logf.Logger {
loggOpts := logg.LoggOpts{}
if debugFlag {
loggOpts.Color = true
loggOpts.Caller = true
loggOpts.Debug = true
}
return logg.NewLogg(loggOpts)
}
// Load config file.
func initConfig() *koanf.Koanf {
var (
ko = koanf.New(".")
)
confFile := file.Provider(confFlag)
if err := ko.Load(confFile, toml.Parser()); err != nil {
lo.Fatal("init: could not load config file", "error", err)
}
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if err := ko.Load(env.Provider("CUSTODIAL_", ".", func(s string) string {
return strings.ReplaceAll(strings.ToLower(
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strings.TrimPrefix(s, "CUSTODIAL_")), "__", ".")
}), nil); err != nil {
lo.Fatal("init: could not override config from env vars", "error", err)
}
if debugFlag {
ko.Print()
}
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return ko
}
// Load Celo chain provider.
func initCeloProvider() *celoutils.Provider {
providerOpts := celoutils.ProviderOpts{
RpcEndpoint: ko.MustString("chain.rpc_endpoint"),
}
if ko.Bool("chain.testnet") {
providerOpts.ChainId = celoutils.TestnetChainId
} else {
providerOpts.ChainId = celoutils.MainnetChainId
}
provider, err := celoutils.NewProvider(providerOpts)
if err != nil {
lo.Fatal("init: critical error loading chain provider", "error", err)
}
return provider
}
// Load separate redis connection for the tasker on a reserved db namespace.
func initAsynqRedisPool() *redis.RedisPool {
poolOpts := redis.RedisPoolOpts{
DSN: ko.MustString("asynq.dsn"),
MinIdleConns: ko.MustInt("redis.min_idle_conn"),
}
pool, err := redis.NewRedisPool(context.Background(), poolOpts)
if err != nil {
lo.Fatal("init: critical error connecting to asynq redis db", "error", err)
}
return pool
}
// Common redis connection on a different db namespace from the takser.
func initCommonRedisPool() *redis.RedisPool {
poolOpts := redis.RedisPoolOpts{
DSN: ko.MustString("redis.dsn"),
MinIdleConns: ko.MustInt("redis.min_idle_conn"),
}
pool, err := redis.NewRedisPool(context.Background(), poolOpts)
if err != nil {
lo.Fatal("init: critical error connecting to common redis db", "error", err)
}
return pool
}
// Load redis backed noncestore.
func initRedisNoncestore(redisPool *redis.RedisPool, chainProvider *celoutils.Provider, store store.Store) nonce.Noncestore {
return nonce.NewRedisNoncestore(nonce.Opts{
ChainProvider: chainProvider,
RedisPool: redisPool,
Store: store,
})
}
// Load global lock provider.
func initLockProvider(redisPool redislock.RedisClient) *redislock.Client {
return redislock.New(redisPool)
}
// Load tasker client.
func initTaskerClient(redisPool *redis.RedisPool) *tasker.TaskerClient {
return tasker.NewTaskerClient(tasker.TaskerClientOpts{
RedisPool: redisPool,
})
}
// Load Postgres store.
func initPgStore() store.Store {
store, err := store.NewPgStore(store.Opts{
DSN: ko.MustString("postgres.dsn"),
MigrationsFolderPath: migrationsFolderFlag,
QueriesFolderPath: queriesFlag,
})
if err != nil {
lo.Fatal("init: critical error loading Postgres store", "error", err)
}
return store
}
// Init JetStream context for both pub/sub.
func initJetStream() (*nats.Conn, nats.JetStreamContext) {
natsConn, err := nats.Connect(ko.MustString("jetstream.endpoint"))
if err != nil {
lo.Fatal("init: critical error connecting to NATS", "error", err)
}
js, err := natsConn.JetStream()
if err != nil {
lo.Fatal("init: bad JetStream opts", "error", err)
}
return natsConn, js
}
func initSub(natsConn *nats.Conn, jsCtx nats.JetStreamContext, cu *custodial.Custodial) *sub.Sub {
sub, err := sub.NewSub(sub.SubOpts{
CustodialContainer: cu,
JsCtx: jsCtx,
Logg: lo,
NatsConn: natsConn,
})
if err != nil {
lo.Fatal("init: critical error bootstrapping sub", "error", err)
}
return sub
}