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125 lines
1.9 KiB
Go
125 lines
1.9 KiB
Go
package ln
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import (
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"bytes"
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"encoding/json"
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"fmt"
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"log"
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"net"
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"net/http"
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"net/url"
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"os"
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"time"
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"github.com/gin-gonic/gin"
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)
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const (
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CurMSat = iota
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CurSat
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CurUSD
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)
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const (
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LNChargeAPIEnv = "LN_CHARGE_API"
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LNChargeTokenEnv = "LN_CHARGE_TOKEN"
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InfoEndpoint = "info"
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InvoiceEndpoint = "invoice"
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)
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var (
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LNCEndpoint string
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LNChargeToken string
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)
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type Charge struct {
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client *http.Client
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}
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func NewCharge() *Charge {
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netTransport := &http.Transport{
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Dial: (&net.Dialer{
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Timeout: 5 * time.Second,
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}).Dial,
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TLSHandshakeTimeout: 5 * time.Second,
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}
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c := &http.Client{
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Timeout: time.Second * 10,
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Transport: netTransport,
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}
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return &Charge{
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client: c,
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}
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}
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func (c *Charge) Info() (gin.H, error) {
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result := make(gin.H)
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resp, err := c.client.Get(getUrl(InfoEndpoint))
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if err != nil {
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return nil, err
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}
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jsonDec := json.NewDecoder(resp.Body)
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jsonDec.Decode(&result)
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return result, nil
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}
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func (c *Charge) Invoice(amount float32, id string) (gin.H, error) {
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result := make(gin.H)
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reqData := gin.H{
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"amount": amount,
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"currency": "USD",
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"description": fmt.Sprintf("bit4sat upload: %s", id),
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}
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jsonEnc, err := json.Marshal(reqData)
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if err != nil {
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return nil, err
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}
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resp, err := c.client.Post(getUrl(InvoiceEndpoint),
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"application/json",
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bytes.NewReader(jsonEnc))
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if err != nil {
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return nil, err
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}
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result = make(gin.H)
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jsonDec := json.NewDecoder(resp.Body)
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jsonDec.Decode(&result)
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return result, nil
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}
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func getUrl(endpoint string) string {
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url, err := url.Parse(fmt.Sprintf("http://api-token:%s@%s/%s",
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LNChargeToken,
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LNCEndpoint,
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endpoint))
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if err != nil {
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log.Fatal(err)
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}
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return url.String()
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}
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func init() {
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var set bool
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LNCEndpoint, set = os.LookupEnv(LNChargeAPIEnv)
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if !set {
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log.Fatalf("%s not set", LNChargeAPIEnv)
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}
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LNChargeToken, set = os.LookupEnv(LNChargeTokenEnv)
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if !set {
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log.Fatalf("%s not set", LNChargeAPIEnv)
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}
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}
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