96 lines
1.9 KiB
Go
96 lines
1.9 KiB
Go
package teller
|
|
|
|
import (
|
|
"context"
|
|
"crypto/tls"
|
|
_ "embed"
|
|
"encoding/json"
|
|
"fmt"
|
|
"io"
|
|
"log"
|
|
"net/http"
|
|
"strings"
|
|
"time"
|
|
|
|
"gogs.inhome.blapointe.com/ana-ledger/src/bank"
|
|
|
|
"golang.org/x/time/rate"
|
|
)
|
|
|
|
type Client struct {
|
|
cert tls.Certificate
|
|
}
|
|
|
|
var _ bank.Agg = Client{}
|
|
|
|
var (
|
|
//go:embed certificate.pem
|
|
certificate []byte
|
|
//go:embed private_key.pem
|
|
privateKey []byte
|
|
//go:embed token.txt
|
|
Tokens string
|
|
)
|
|
|
|
func New() (Client, error) {
|
|
cert, err := tls.X509KeyPair(certificate, privateKey)
|
|
return Client{cert: cert}, err
|
|
}
|
|
|
|
func (c Client) Accounts(ctx context.Context) ([]bank.Account, error) {
|
|
var result []bank.Account
|
|
for _, token := range strings.Fields(Tokens) {
|
|
var more []bank.Account
|
|
if err := c.get(ctx, "https://api.teller.io/accounts", token, &more); err != nil {
|
|
return nil, err
|
|
}
|
|
for i := range more {
|
|
more[i].Token = token
|
|
}
|
|
result = append(result, more...)
|
|
}
|
|
return result, nil
|
|
}
|
|
|
|
func (c Client) Transactions(ctx context.Context, a bank.Account) ([]bank.Transaction, error) {
|
|
var result []bank.Transaction
|
|
err := c.get(ctx, "https://api.teller.io/accounts/"+a.Account+"/transactions", a.Token, &result)
|
|
return result, err
|
|
}
|
|
|
|
var limiter = rate.NewLimiter(0.1, 1)
|
|
|
|
func (c Client) get(ctx context.Context, url, token string, ptr interface{}) error {
|
|
if err := limiter.Wait(ctx); err != nil {
|
|
return err
|
|
}
|
|
|
|
log.Printf("Teller.Get(%s, %s)", url, token)
|
|
httpc := &http.Client{
|
|
Timeout: time.Second,
|
|
Transport: &http.Transport{
|
|
DisableKeepAlives: true,
|
|
TLSClientConfig: &tls.Config{Certificates: []tls.Certificate{c.cert}},
|
|
},
|
|
}
|
|
|
|
req, err := http.NewRequest(http.MethodGet, url, nil)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
req.SetBasicAuth(token, "")
|
|
req = req.WithContext(ctx)
|
|
|
|
resp, err := httpc.Do(req)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
defer resp.Body.Close()
|
|
|
|
b, _ := io.ReadAll(resp.Body)
|
|
if err := json.Unmarshal(b, &ptr); err != nil {
|
|
return fmt.Errorf("cannot unmarshal: %w: %s", err, b)
|
|
}
|
|
return nil
|
|
}
|