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-rw-r--r--arbiter/.golangci.yml18
-rw-r--r--arbiter/arbiter.go73
-rw-r--r--arbiter/go.mod2
3 files changed, 37 insertions, 56 deletions
diff --git a/arbiter/.golangci.yml b/arbiter/.golangci.yml
new file mode 100644
index 0000000..878e031
--- /dev/null
+++ b/arbiter/.golangci.yml
@@ -0,0 +1,18 @@
+run:
+ concurrency: 16
+ timeout: 5m
+ modules-download-mode: readonly
+ allow-parallel-runners: true
+ allow-serial-runners: true
+ go: '1.22'
+linters-settings:
+ depguard:
+ rules:
+ srcs:
+ listMode: "Strict"
+ allow:
+ - $gostd
+ - github.com/go-redis/redis/v8
+ - github.com/gorilla/mux
+ - github.com/rs/zerolog
+ - github.com/rs/zerolog/log
diff --git a/arbiter/arbiter.go b/arbiter/arbiter.go
index 8e2c999..6145a45 100644
--- a/arbiter/arbiter.go
+++ b/arbiter/arbiter.go
@@ -83,7 +83,7 @@ type errorChanStruct struct {
err error
}
-func GetProxiedClient() (*http.Client, error) {
+func GetProxiedClient() *http.Client {
transport := &http.Transport{
DisableKeepAlives: true,
Proxy: http.ProxyFromEnvironment,
@@ -95,7 +95,7 @@ func GetProxiedClient() (*http.Client, error) {
Jar: nil,
}
- return client, nil
+ return client
}
// OWASP: https://cheatsheetseries.owasp.org/cheatsheets/REST_Security_Cheat_Sheet.html
@@ -108,22 +108,6 @@ func addSecureHeaders(writer *http.ResponseWriter) {
(*writer).Header().Set("Access-Control-Allow-Methods", "GET,POST,PUT,DELETE,OPTIONS")
}
-// get price from binance.
-// func getPriceFromBinance(name, unit string,
-// wg *sync.WaitGroup,
-// priceChan chan<- priceChanStruct,
-// errChan chan<- errorChanStruct) {
-
-// }
-
-// get price from kucoin.
-// func getPriceFromKu(name, uni string,
-// wg *sync.WaitGroup,
-// priceChan chan<- priceChanStruct,
-// errChan chan<- errorChanStruct) {
-
-// }
-
func getPriceFromCoinGecko(
ctx context.Context,
name, unit string,
@@ -139,15 +123,7 @@ func getPriceFromCoinGecko(
"vs_currencies=" + url.QueryEscape(unit)
path := coingeckoAPIURLv3 + params
- client, err := GetProxiedClient()
- if err != nil {
- priceChan <- priceChanStruct{name: name, price: priceFloat}
- errChan <- errorChanStruct{hasError: true, err: err}
-
- log.Error().Err(err)
-
- return
- }
+ client := GetProxiedClient()
req, err := http.NewRequestWithContext(ctx, http.MethodGet, path, nil)
if err != nil {
@@ -164,7 +140,7 @@ func getPriceFromCoinGecko(
priceChan <- priceChanStruct{name: name, price: priceFloat}
errChan <- errorChanStruct{hasError: true, err: err}
- log.Error().Err(err)
+ log.Error().Err(err).Send()
return
}
@@ -175,7 +151,7 @@ func getPriceFromCoinGecko(
priceChan <- priceChanStruct{name: name, price: priceFloat}
errChan <- errorChanStruct{hasError: true, err: err}
- log.Error().Err(err)
+ log.Error().Err(err).Send()
}
jsonBody := make(map[string]interface{})
@@ -185,7 +161,7 @@ func getPriceFromCoinGecko(
priceChan <- priceChanStruct{name: name, price: priceFloat}
errChan <- errorChanStruct{hasError: true, err: err}
- log.Error().Err(err)
+ log.Error().Err(err).Send()
}
price, isOk := jsonBody[name].(map[string]interface{})
@@ -216,7 +192,7 @@ func getPriceFromCoinGecko(
func getPriceFromCoinCap(
ctx context.Context,
- name, unit string,
+ name string,
wg *sync.WaitGroup,
priceChan chan<- priceChanStruct,
errChan chan<- errorChanStruct,
@@ -228,15 +204,7 @@ func getPriceFromCoinCap(
params := "/assets/" + url.QueryEscape(name)
path := coincapAPIURLv2 + params
- client, err := GetProxiedClient()
- if err != nil {
- priceChan <- priceChanStruct{name: name, price: priceFloat}
- errChan <- errorChanStruct{hasError: true, err: err}
-
- log.Error().Err(err)
-
- return
- }
+ client := GetProxiedClient()
req, err := http.NewRequestWithContext(ctx, http.MethodGet, path, nil)
if err != nil {
@@ -253,7 +221,7 @@ func getPriceFromCoinCap(
priceChan <- priceChanStruct{name: name, price: priceFloat}
errChan <- errorChanStruct{hasError: true, err: err}
- log.Error().Err(err)
+ log.Error().Err(err).Send()
return
}
@@ -274,7 +242,7 @@ func getPriceFromCoinCap(
priceChan <- priceChanStruct{name: name, price: priceFloat}
errChan <- errorChanStruct{hasError: true, err: err}
- log.Error().Err(err)
+ log.Error().Err(err).Send()
}
priceFloat, err = strconv.ParseFloat(coinCapAssetGetResponse.Data.PriceUsd, 64)
@@ -282,7 +250,7 @@ func getPriceFromCoinCap(
priceChan <- priceChanStruct{name: name, price: priceFloat}
errChan <- errorChanStruct{hasError: true, err: err}
- log.Error().Err(err)
+ log.Error().Err(err).Send()
}
log.Info().Msg(string(body))
@@ -336,7 +304,7 @@ func arbHandler(w http.ResponseWriter, r *http.Request) {
log.Error().Err(err.err)
}
default:
- log.Error().Err(errBadLogic)
+ log.Error().Err(errBadLogic).Send()
}
var price priceChanStruct
@@ -380,17 +348,13 @@ func coincapHandler(w http.ResponseWriter, r *http.Request) {
var name string
- var unit string
-
params := r.URL.Query()
for key, value := range params {
switch key {
case "name":
name = value[0]
- case "unit":
- unit = value[0]
default:
- log.Error().Err(errUnexpectedParam)
+ log.Error().Err(errUnexpectedParam).Send()
}
}
@@ -404,8 +368,7 @@ func coincapHandler(w http.ResponseWriter, r *http.Request) {
ctx, cancel := context.WithTimeout(context.Background(), getTimeout*time.Second)
defer cancel()
- //nolint:contextcheck
- getPriceFromCoinCap(ctx, name, unit, &waitGroup, priceChan, errChan)
+ getPriceFromCoinCap(ctx, name, &waitGroup, priceChan, errChan)
waitGroup.Wait()
select {
@@ -436,8 +399,8 @@ func coincapHandler(w http.ResponseWriter, r *http.Request) {
jsonResp, err := json.Marshal(responseData)
if err != nil {
cancel()
- //nolint:gocritic
- log.Fatal().Err(err)
+
+ log.Fatal().Err(err).Send()
}
_, err = w.Write(jsonResp)
@@ -468,7 +431,7 @@ func startServer(gracefulWait time.Duration,
TLSConfig: cfg,
}
- for i := 0; i < len(handlers); i++ {
+ for i := range len(handlers) {
route.HandleFunc(handlers[i].name, handlers[i].function)
}
@@ -483,7 +446,7 @@ func startServer(gracefulWait time.Duration,
certPath = "/certs/server.cert"
keyPath = "/certs/server.key"
default:
- log.Error().Err(errUnknownDeployment)
+ log.Error().Err(errUnknownDeployment).Send()
}
if err := srv.ListenAndServeTLS(certPath, keyPath); err != nil {
diff --git a/arbiter/go.mod b/arbiter/go.mod
index 0946e53..a7a87c6 100644
--- a/arbiter/go.mod
+++ b/arbiter/go.mod
@@ -1,6 +1,6 @@
module arbiter
-go 1.22.3
+go 1.22
require (
github.com/go-redis/redis/v8 v8.11.5
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-22 10:42:58 +0000