lndhub /auth
This commit is contained in:
Peter Rounce
parent
918b806567
commit
9a5016225f
4 changed files with 155 additions and 76 deletions
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@ -4,11 +4,143 @@ import (
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decodepay "github.com/fiatjaf/ln-decodepay"
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log "github.com/sirupsen/logrus"
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"net/http"
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"bytes"
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"io"
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"github.com/boltcard/boltcard/db"
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"github.com/boltcard/boltcard/lnd"
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"github.com/boltcard/boltcard/resp_err"
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)
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func lndhub_payment(w http.ResponseWriter, p *db.Payment) {
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//get setting for LNDHUB_URL
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lndhub_url := "https://" + db.Get_setting("LNDHUB_URL")
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//get lndhub login details from database
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c, err := db.Get_card_from_card_id(p.Card_id)
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if err != nil {
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log.WithFields(log.Fields{"card_payment_id": p.Card_payment_id}).Warn(err)
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resp_err.Write(w)
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return
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}
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//lndhub.auth API call
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//the login JSON is held in the Card_name field
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body := []byte(c.Card_name)
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r, err := http.NewRequest("POST", lndhub_url + "/auth", bytes.NewBuffer(body))
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if err != nil {
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log.WithFields(log.Fields{"card_payment_id": p.Card_payment_id}).Warn(err)
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resp_err.Write(w)
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return
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}
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r.Header.Add("Access-Control-Allow-Origin", "*")
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r.Header.Add("Content-Type", "application/json")
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client := &http.Client{}
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res, err := client.Do(r)
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if err != nil {
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log.WithFields(log.Fields{"card_payment_id": p.Card_payment_id}).Warn(err)
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resp_err.Write(w)
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return
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}
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defer res.Body.Close()
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b, err2 := io.ReadAll(res.Body)
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if err2 != nil {
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log.WithFields(log.Fields{"card_payment_id": p.Card_payment_id}).Warn(err)
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resp_err.Write(w)
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return
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}
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log.Info(string(b))
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// fmt.Println(string(b))
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//lndhub.payinvoice API call
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}
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func lnd_payment(w http.ResponseWriter, bolt11 decodepay.Bolt11, p *db.Payment, param_pr string) {
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// check amount limits
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invoice_sats := int(bolt11.MSatoshi / 1000)
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day_total_sats, err := db.Get_card_totals(p.Card_id)
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if err != nil {
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log.WithFields(log.Fields{"card_payment_id": p.Card_payment_id}).Warn(err)
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resp_err.Write(w)
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return
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}
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c, err := db.Get_card_from_card_id(p.Card_id)
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if err != nil {
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log.WithFields(log.Fields{"card_payment_id": p.Card_payment_id}).Warn(err)
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resp_err.Write(w)
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return
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}
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if invoice_sats > c.Tx_limit_sats {
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log.WithFields(log.Fields{"card_payment_id": p.Card_payment_id}).Info("invoice_sats: ", invoice_sats)
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log.WithFields(log.Fields{"card_payment_id": p.Card_payment_id}).Info("tx_limit_sats: ", c.Tx_limit_sats)
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log.WithFields(log.Fields{"card_payment_id": p.Card_payment_id}).Info("over tx_limit_sats!")
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resp_err.Write(w)
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return
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}
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if day_total_sats+invoice_sats > c.Day_limit_sats {
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log.WithFields(log.Fields{"card_payment_id": p.Card_payment_id}).Info("invoice_sats: ", invoice_sats)
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log.WithFields(log.Fields{"card_payment_id": p.Card_payment_id}).Info("day_total_sats: ", day_total_sats)
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log.WithFields(log.Fields{"card_payment_id": p.Card_payment_id}).Info("day_limit_sats: ", c.Day_limit_sats)
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log.WithFields(log.Fields{"card_payment_id": p.Card_payment_id}).Info("over day_limit_sats!")
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resp_err.Write(w)
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return
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}
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// check the card balance if marked as 'must stay above zero' (default)
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// i.e. cards.allow_negative_balance == 'N'
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if c.Allow_negative_balance != "Y" {
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card_total, err := db.Get_card_total_sats(p.Card_id)
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if err != nil {
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log.WithFields(log.Fields{"card_payment_id": p.Card_payment_id}).Warn(err)
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resp_err.Write(w)
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return
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}
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if card_total-invoice_sats < 0 {
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log.WithFields(log.Fields{"card_payment_id": p.Card_payment_id}).Warn("not enough balance")
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resp_err.Write(w)
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return
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}
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}
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log.WithFields(log.Fields{"card_payment_id": p.Card_payment_id}).Info("paying invoice")
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// update paid_flag so we only attempt payment once
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err = db.Update_payment_paid(p.Card_payment_id)
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if err != nil {
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log.WithFields(log.Fields{"card_payment_id": p.Card_payment_id}).Warn(err)
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resp_err.Write(w)
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return
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}
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// https://github.com/fiatjaf/lnurl-rfc/blob/luds/03.md
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//
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// LN SERVICE sends a {"status": "OK"} or
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// {"status": "ERROR", "reason": "error details..."}
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// JSON response and then attempts to pay the invoices asynchronously.
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go lnd.Pay_invoice(p.Card_payment_id, param_pr)
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log.Debug("sending 'status OK' response")
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w.Header().Set("Content-Type", "application/json")
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w.WriteHeader(http.StatusOK)
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jsonData := []byte(`{"status":"OK"}`)
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w.Write(jsonData)
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}
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func Callback(w http.ResponseWriter, req *http.Request) {
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env_host_domain := db.Get_setting("HOST_DOMAIN")
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@ -87,81 +219,13 @@ func Callback(w http.ResponseWriter, req *http.Request) {
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return
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}
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// check amount limits
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invoice_sats := int(bolt11.MSatoshi / 1000)
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day_total_sats, err := db.Get_card_totals(p.Card_id)
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if err != nil {
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log.WithFields(log.Fields{"card_payment_id": p.Card_payment_id}).Warn(err)
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resp_err.Write(w)
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return
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//check if we are using LND or LNDHUB for payment
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lndhub := db.Get_setting("FUNCTION_LNDHUB")
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if lndhub == "ENABLE" {
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log.WithFields(log.Fields{"card_payment_id": p.Card_payment_id}).Info("initiating lndhub payment")
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lndhub_payment(w, p)
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} else {
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log.WithFields(log.Fields{"card_payment_id": p.Card_payment_id}).Info("initiating lnd payment")
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lnd_payment(w, bolt11, p, param_pr)
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}
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c, err := db.Get_card_from_card_id(p.Card_id)
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if err != nil {
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log.WithFields(log.Fields{"card_payment_id": p.Card_payment_id}).Warn(err)
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resp_err.Write(w)
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return
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}
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if invoice_sats > c.Tx_limit_sats {
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log.WithFields(log.Fields{"card_payment_id": p.Card_payment_id}).Info("invoice_sats: ", invoice_sats)
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log.WithFields(log.Fields{"card_payment_id": p.Card_payment_id}).Info("tx_limit_sats: ", c.Tx_limit_sats)
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log.WithFields(log.Fields{"card_payment_id": p.Card_payment_id}).Info("over tx_limit_sats!")
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resp_err.Write(w)
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return
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}
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if day_total_sats+invoice_sats > c.Day_limit_sats {
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log.WithFields(log.Fields{"card_payment_id": p.Card_payment_id}).Info("invoice_sats: ", invoice_sats)
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log.WithFields(log.Fields{"card_payment_id": p.Card_payment_id}).Info("day_total_sats: ", day_total_sats)
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log.WithFields(log.Fields{"card_payment_id": p.Card_payment_id}).Info("day_limit_sats: ", c.Day_limit_sats)
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log.WithFields(log.Fields{"card_payment_id": p.Card_payment_id}).Info("over day_limit_sats!")
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resp_err.Write(w)
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return
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}
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// check the card balance if marked as 'must stay above zero' (default)
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// i.e. cards.allow_negative_balance == 'N'
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if c.Allow_negative_balance != "Y" {
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card_total, err := db.Get_card_total_sats(p.Card_id)
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if err != nil {
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log.WithFields(log.Fields{"card_payment_id": p.Card_payment_id}).Warn(err)
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resp_err.Write(w)
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return
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}
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if card_total-invoice_sats < 0 {
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log.WithFields(log.Fields{"card_payment_id": p.Card_payment_id}).Warn("not enough balance")
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resp_err.Write(w)
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return
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}
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}
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log.WithFields(log.Fields{"card_payment_id": p.Card_payment_id}).Info("paying invoice")
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// update paid_flag so we only attempt payment once
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err = db.Update_payment_paid(p.Card_payment_id)
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if err != nil {
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log.WithFields(log.Fields{"card_payment_id": p.Card_payment_id}).Warn(err)
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resp_err.Write(w)
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return
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}
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// https://github.com/fiatjaf/lnurl-rfc/blob/luds/03.md
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//
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// LN SERVICE sends a {"status": "OK"} or
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// {"status": "ERROR", "reason": "error details..."}
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// JSON response and then attempts to pay the invoices asynchronously.
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go lnd.Pay_invoice(p.Card_payment_id, param_pr)
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log.Debug("sending 'status OK' response")
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w.Header().Set("Content-Type", "application/json")
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w.WriteHeader(http.StatusOK)
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jsonData := []byte(`{"status":"OK"}`)
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w.Write(jsonData)
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}
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