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mempool_api.go
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mempool_api.go
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package itest
import (
"encoding/json"
"fmt"
"net"
"net/http"
"github.com/breez/lntest"
)
type RecommendedFeesResponse struct {
FastestFee float64 `json:"fastestFee"`
HalfHourFee float64 `json:"halfHourFee"`
HourFee float64 `json:"hourFee"`
EconomyFee float64 `json:"economyFee"`
MinimumFee float64 `json:"minimumFee"`
}
type mempoolApi struct {
addr string
h *lntest.TestHarness
fees *RecommendedFeesResponse
lis net.Listener
}
func NewMempoolApi(h *lntest.TestHarness) *mempoolApi {
port, err := lntest.GetPort()
if err != nil {
h.T.Fatalf("Failed to get port for mempool api: %v", err)
}
return &mempoolApi{
addr: fmt.Sprintf("127.0.0.1:%d", port),
h: h,
fees: &RecommendedFeesResponse{
MinimumFee: 1,
EconomyFee: 1,
HourFee: 1,
HalfHourFee: 1,
FastestFee: 1,
},
}
}
func (m *mempoolApi) Address() string {
return fmt.Sprintf("http://%s/api/v1/", m.addr)
}
func (m *mempoolApi) SetFees(fees *RecommendedFeesResponse) {
m.fees = fees
}
func (m *mempoolApi) Start() {
mux := http.NewServeMux()
mux.HandleFunc("/api/v1/fees/recommended", func(w http.ResponseWriter, r *http.Request) {
j, err := json.Marshal(m.fees)
if err != nil {
m.h.T.Fatalf("Failed to marshal mempool fees: %v", err)
}
_, err = w.Write(j)
if err != nil {
m.h.T.Fatalf("Failed to write mempool response: %v", err)
}
})
lis, err := net.Listen("tcp", m.addr)
if err != nil {
m.h.T.Fatalf("failed to start mempool api: %v", err)
}
m.lis = lis
m.h.AddStoppable(m)
go http.Serve(lis, mux)
}
func (m *mempoolApi) Stop() error {
lis := m.lis
if lis == nil {
return nil
}
m.lis = nil
return lis.Close()
}