mirror of https://github.com/bumi/lntip
go fmt
This commit is contained in:
parent
01fb7be447
commit
faf858f0c4
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@ -13,8 +13,8 @@ import (
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var stdOutLogger = log.New(os.Stdout, "", log.LstdFlags)
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type Invoice struct {
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Value int64 `json:"value"`
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Memo string `json:"memo"`
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Value int64 `json:"value"`
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Memo string `json:"memo"`
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}
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func main() {
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@ -22,21 +22,21 @@ func main() {
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certFile := flag.String("cert", "~/.lnd/tls.cert", "Path to the lnd tls.cert file")
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macaroonFile := flag.String("macaroon", "~/.lnd/data/chain/bitcoin/mainnet/invoice.macaroon", "Path to the lnd macaroon file")
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bind := flag.String("bind", ":1323", "Host and port to bind on")
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staticPath := flag.String("static-path", "", "Path to a static assets directory. Blank to disable serving static files")
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disableCors := flag.Bool("disable-cors", false, "Disable CORS headers")
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staticPath := flag.String("static-path", "", "Path to a static assets directory. Blank to disable serving static files")
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disableCors := flag.Bool("disable-cors", false, "Disable CORS headers")
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flag.Parse()
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e := echo.New()
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if (*staticPath != "") {
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e.Static("/static", *staticPath)
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}
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if (!*disableCors) {
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e.Use(middleware.CORS())
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}
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if *staticPath != "" {
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e.Static("/static", *staticPath)
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}
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if !*disableCors {
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e.Use(middleware.CORS())
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}
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e.Use(middleware.Recover())
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stdOutLogger.Printf("Connection to %s using macaroon %s and cert %s", *address, *macaroonFile, *certFile)
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stdOutLogger.Printf("Connection to %s using macaroon %s and cert %s", *address, *macaroonFile, *certFile)
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lndOptions := ln.LNDoptions{
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Address: *address,
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CertFile: *certFile,
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@ -44,11 +44,11 @@ func main() {
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}
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lnClient, err := ln.NewLNDclient(lndOptions)
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if err != nil {
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stdOutLogger.Print("Error initializing LND client:")
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stdOutLogger.Print("Error initializing LND client:")
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panic(err)
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}
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// endpoint URLs compatible to the LND REST API
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// endpoint URLs compatible to the LND REST API
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e.POST("/v1/invoices", func(c echo.Context) error {
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i := new(Invoice)
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if err := c.Bind(i); err != nil {
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184
ln/lnd.go
184
ln/lnd.go
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@ -1,138 +1,136 @@
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package ln
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import (
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"context"
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"encoding/hex"
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"io/ioutil"
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"log"
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"os"
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"context"
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"encoding/hex"
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"io/ioutil"
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"log"
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"os"
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"github.com/lightningnetwork/lnd/lnrpc"
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"gopkg.in/macaroon.v2"
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"github.com/lightningnetwork/lnd/macaroons"
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"github.com/lightningnetwork/lnd/lnrpc"
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"github.com/lightningnetwork/lnd/macaroons"
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"gopkg.in/macaroon.v2"
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"google.golang.org/grpc"
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"google.golang.org/grpc/credentials"
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"google.golang.org/grpc"
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"google.golang.org/grpc/credentials"
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)
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var stdOutLogger = log.New(os.Stdout, "", log.LstdFlags)
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// thanks https://github.com/philippgille/ln-paywall/
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// Invoice is a Lightning Network invoice and contains the typical invoice string and the payment hash.
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type Invoice struct {
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PaymentHash string `json:"payment_hash"`
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PaymentRequest string `json:"payment_request"`
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Settled bool `json:"settled"`
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PaymentHash string `json:"payment_hash"`
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PaymentRequest string `json:"payment_request"`
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Settled bool `json:"settled"`
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}
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type LNDclient struct {
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lndClient lnrpc.LightningClient
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ctx context.Context
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conn *grpc.ClientConn
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lndClient lnrpc.LightningClient
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ctx context.Context
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conn *grpc.ClientConn
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}
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// AddInvoice generates an invoice with the given price and memo.
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func (c LNDclient) AddInvoice(value int64, memo string) (Invoice, error) {
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result := Invoice{}
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result := Invoice{}
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stdOutLogger.Printf("Creating invoice: memo=%s amount=%v ", memo, value)
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invoice := lnrpc.Invoice{
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Memo: memo,
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Value: value,
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}
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res, err := c.lndClient.AddInvoice(c.ctx, &invoice)
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if err != nil {
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return result, err
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}
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stdOutLogger.Printf("Creating invoice: memo=%s amount=%v ", memo, value)
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invoice := lnrpc.Invoice{
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Memo: memo,
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Value: value,
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}
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res, err := c.lndClient.AddInvoice(c.ctx, &invoice)
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if err != nil {
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return result, err
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}
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result.PaymentHash = hex.EncodeToString(res.RHash)
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result.PaymentRequest = res.PaymentRequest
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return result, nil
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result.PaymentHash = hex.EncodeToString(res.RHash)
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result.PaymentRequest = res.PaymentRequest
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return result, nil
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}
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// GetInvoice takes an invoice ID and returns the invoice details including settlement details
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// An error is returned if no corresponding invoice was found.
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func (c LNDclient) GetInvoice(paymentHashStr string) (Invoice, error) {
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var invoice Invoice
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stdOutLogger.Printf("Lookup invoice: hash=%s\n", paymentHashStr)
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var invoice Invoice
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stdOutLogger.Printf("Lookup invoice: hash=%s\n", paymentHashStr)
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plainHash, err := hex.DecodeString(paymentHashStr)
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if err != nil {
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return invoice, err
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}
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plainHash, err := hex.DecodeString(paymentHashStr)
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if err != nil {
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return invoice, err
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}
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// Get the invoice for that hash
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paymentHash := lnrpc.PaymentHash{
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RHash: plainHash,
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// Hex encoded, must be exactly 32 byte
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RHashStr: paymentHashStr,
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}
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result, err := c.lndClient.LookupInvoice(c.ctx, &paymentHash)
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if err != nil {
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return invoice, err
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}
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// Get the invoice for that hash
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paymentHash := lnrpc.PaymentHash{
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RHash: plainHash,
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// Hex encoded, must be exactly 32 byte
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RHashStr: paymentHashStr,
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}
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result, err := c.lndClient.LookupInvoice(c.ctx, &paymentHash)
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if err != nil {
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return invoice, err
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}
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invoice = Invoice{}
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invoice.PaymentHash = hex.EncodeToString(result.RHash)
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invoice.PaymentRequest = result.PaymentRequest
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invoice.Settled = result.GetSettled()
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invoice = Invoice{}
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invoice.PaymentHash = hex.EncodeToString(result.RHash)
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invoice.PaymentRequest = result.PaymentRequest
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invoice.Settled = result.GetSettled()
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return invoice, nil
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return invoice, nil
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}
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func NewLNDclient(lndOptions LNDoptions) (LNDclient, error) {
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result := LNDclient{}
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result := LNDclient{}
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creds, err := credentials.NewClientTLSFromFile(lndOptions.CertFile, "")
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if err != nil {
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return result, err
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}
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opts := []grpc.DialOption{
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grpc.WithTransportCredentials(creds),
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}
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creds, err := credentials.NewClientTLSFromFile(lndOptions.CertFile, "")
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if err != nil {
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return result, err
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}
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opts := []grpc.DialOption{
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grpc.WithTransportCredentials(creds),
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}
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macaroonData, err := ioutil.ReadFile(lndOptions.MacaroonFile)
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if err != nil {
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return result, err
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}
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mac := &macaroon.Macaroon{}
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if err = mac.UnmarshalBinary(macaroonData); err != nil {
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return result, err
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}
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macaroonData, err := ioutil.ReadFile(lndOptions.MacaroonFile)
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if err != nil {
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return result, err
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}
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mac := &macaroon.Macaroon{}
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if err = mac.UnmarshalBinary(macaroonData); err != nil {
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return result, err
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}
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macCred := macaroons.NewMacaroonCredential(mac)
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opts = append(opts, grpc.WithPerRPCCredentials(macCred))
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macCred := macaroons.NewMacaroonCredential(mac)
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opts = append(opts, grpc.WithPerRPCCredentials(macCred))
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conn, err := grpc.Dial(lndOptions.Address, opts...)
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if err != nil {
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return result, err
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}
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conn, err := grpc.Dial(lndOptions.Address, opts...)
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if err != nil {
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return result, err
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}
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c := lnrpc.NewLightningClient(conn)
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c := lnrpc.NewLightningClient(conn)
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result = LNDclient{
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conn: conn,
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ctx: context.Background(),
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lndClient: c,
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}
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result = LNDclient{
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conn: conn,
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ctx: context.Background(),
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lndClient: c,
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}
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return result, nil
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return result, nil
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}
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// LNDoptions are the options for the connection to the lnd node.
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type LNDoptions struct {
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// Address of your LND node, including the port.
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// Optional ("localhost:10009" by default).
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Address string
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// Path to the "tls.cert" file that your LND node uses.
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// Optional ("tls.cert" by default).
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CertFile string
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// Path to the macaroon file that your LND node uses.
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// "invoice.macaroon" if you only use the AddInvoice() and GetInvoice() methods
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// (required by the middleware in the package "wall").
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// "admin.macaroon" if you use the Pay() method (required by the client in the package "pay").
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// Optional ("invoice.macaroon" by default).
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MacaroonFile string
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// Address of your LND node, including the port.
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// Optional ("localhost:10009" by default).
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Address string
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// Path to the "tls.cert" file that your LND node uses.
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// Optional ("tls.cert" by default).
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CertFile string
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// Path to the macaroon file that your LND node uses.
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// "invoice.macaroon" if you only use the AddInvoice() and GetInvoice() methods
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// (required by the middleware in the package "wall").
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// "admin.macaroon" if you use the Pay() method (required by the client in the package "pay").
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// Optional ("invoice.macaroon" by default).
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MacaroonFile string
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}
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