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(OraklNode) Implement proxy for websocket fetchers #2206

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merged 1 commit into from
Aug 23, 2024
Merged

(OraklNode) Implement proxy for websocket fetchers #2206

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19 changes: 18 additions & 1 deletion node/pkg/websocketfetcher/app.go
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Original file line number Diff line number Diff line change
Expand Up @@ -3,6 +3,7 @@ package websocketfetcher
import (
"context"
"errors"
"fmt"
"os"
"sync"
"time"
Expand Down Expand Up @@ -106,14 +107,20 @@ type App struct {
chainReader *websocketchainreader.ChainReader
latestFeedDataMap *types.LatestFeedDataMap
feedDataDumpChannel chan *common.FeedData
proxies []types.Proxy
}

func New() *App {
return &App{}
}

func (a *App) Init(ctx context.Context, opts ...AppOption) error {
// TODO: Proxy support
proxies, err := db.QueryRows[types.Proxy](ctx, "SELECT * FROM proxies", nil)
if err != nil {
return err
}
a.proxies = proxies

cexFactories := map[string]func(context.Context, ...common.FetcherOption) (common.FetcherInterface, error){
"binance": binance.New,
"coinbase": coinbase.New,
Expand Down Expand Up @@ -195,7 +202,14 @@ func (a *App) initializeCex(ctx context.Context, appConfig AppConfig) error {
a.buffer = make(chan *common.FeedData, appConfig.BufferSize)
a.storeInterval = appConfig.StoreInterval

index := 0
for name, factory := range appConfig.CexFactories {
proxyUrl := ""
if len(a.proxies) != 0 {
proxy := a.proxies[index%len(a.proxies)]
proxyUrl = fmt.Sprintf("%s://%s:%d", proxy.Protocol, proxy.Host, proxy.Port)
}

if _, ok := feedMap[name]; !ok {
log.Warn().Msgf("no feeds for %s", name)
continue
Expand All @@ -204,12 +218,15 @@ func (a *App) initializeCex(ctx context.Context, appConfig AppConfig) error {
ctx,
common.WithFeedDataBuffer(a.buffer),
common.WithFeedMaps(feedMap[name]),
common.WithProxy(proxyUrl),
)
if err != nil {
log.Error().Err(err).Msgf("error in creating %s fetcher", name)
return err
}
a.fetchers = append(a.fetchers, fetcher)

index++
}
return nil
}
Expand Down