cic-chain-events/cmd/init.go

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2023-01-05 12:45:09 +01:00
package main
import (
"strings"
"github.com/alitto/pond"
"github.com/grassrootseconomics/cic-chain-events/internal/fetch"
"github.com/grassrootseconomics/cic-chain-events/internal/pool"
"github.com/grassrootseconomics/cic-chain-events/internal/store"
"github.com/jackc/pgx/v5"
"github.com/knadh/goyesql/v2"
"github.com/knadh/koanf"
"github.com/knadh/koanf/parsers/toml"
"github.com/knadh/koanf/providers/env"
"github.com/knadh/koanf/providers/file"
"github.com/zerodha/logf"
)
func initLogger(debug bool) logf.Logger {
loggOpts := logf.Opts{
EnableColor: true,
}
if debug {
loggOpts.Level = logf.DebugLevel
}
return logf.New(loggOpts)
}
func initConfig(configFilePath string) *koanf.Koanf {
var (
ko = koanf.New(".")
)
confFile := file.Provider(configFilePath)
if err := ko.Load(confFile, toml.Parser()); err != nil {
lo.Fatal("could not load config file", "error", err)
}
if err := ko.Load(env.Provider("", ".", func(s string) string {
return strings.ReplaceAll(strings.ToLower(
strings.TrimPrefix(s, "")), "_", ".")
}), nil); err != nil {
lo.Fatal("could not override config from env vars", "error", err)
}
return ko
}
func initQueries(queriesPath string) goyesql.Queries {
queries, err := goyesql.ParseFile(queriesPath)
if err != nil {
lo.Fatal("could not load queries file", "error", err)
}
return queries
}
func initPgStore() (store.Store[pgx.Rows], error) {
pgStore, err := store.NewPostgresStore(store.PostgresStoreOpts{
DSN: ko.MustString("postgres.dsn"),
InitialLowerBound: uint64(ko.MustInt64("indexer.initial_lower_bound")),
Logg: lo,
Queries: q,
})
if err != nil {
return nil, err
}
return pgStore, nil
}
func initWorkerPool() *pond.WorkerPool {
return pool.NewPool(pool.Opts{
ConcurrencyFactor: ko.MustInt("indexer.concurrency"),
PoolQueueSize: ko.MustInt("indexer.queue_size"),
})
}
func initFetcher() fetch.Fetch {
return fetch.NewGraphqlFetcher(fetch.GraphqlOpts{
GraphqlEndpoint: ko.MustString("chain.graphql_endpoint"),
})
}