feat(zarinhub): implement card to iban client
This commit is contained in:
151
backend/internal/zarinhub/client.go
Normal file
151
backend/internal/zarinhub/client.go
Normal file
@@ -0,0 +1,151 @@
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package zarinhub
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import (
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"bytes"
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"context"
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"encoding/json"
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"errors"
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"fmt"
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"io"
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"net"
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"net/http"
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"card-to-iban/internal/service"
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)
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type Client struct {
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httpClient *http.Client
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endpointURL string
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accessToken string
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}
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var _ service.CardToIBANClient = (*Client)(nil)
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func NewClient(
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httpClient *http.Client,
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endpointURL string,
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accessToken string,
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) *Client {
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return &Client{
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httpClient: httpClient,
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endpointURL: endpointURL,
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accessToken: accessToken,
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}
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}
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func (c *Client) Convert(
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ctx context.Context,
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cardNumber string,
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) (service.ConversionResult, error) {
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payload, err := json.Marshal(convertRequest{
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Card: cardNumber,
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})
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if err != nil {
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return service.ConversionResult{},
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fmt.Errorf("marshal zarinhub request: %w", err)
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}
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req, err := http.NewRequestWithContext(
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ctx,
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http.MethodPost,
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c.endpointURL,
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bytes.NewReader(payload),
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)
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if err != nil {
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return service.ConversionResult{},
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fmt.Errorf("create zarinhub request: %w", err)
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}
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req.Header.Set(
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"Authorization",
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"Bearer "+c.accessToken,
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)
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req.Header.Set(
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"Content-Type",
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"application/json",
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)
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resp, err := c.httpClient.Do(req)
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if err != nil {
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switch {
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case errors.Is(err, context.DeadlineExceeded):
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return service.ConversionResult{},
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fmt.Errorf("%w: %v", ErrTimeout, err)
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case errors.Is(err, context.Canceled):
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return service.ConversionResult{},
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fmt.Errorf("zarinhub request canceled: %w", err)
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}
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var netErr net.Error
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if errors.As(err, &netErr) && netErr.Timeout() {
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return service.ConversionResult{},
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fmt.Errorf("%w: %v", ErrTimeout, err)
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}
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return service.ConversionResult{},
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fmt.Errorf("%w: %v", ErrUnavailable, err)
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}
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defer resp.Body.Close()
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result := service.ConversionResult{
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UpstreamHTTPStatus: resp.StatusCode,
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}
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body, err := io.ReadAll(resp.Body)
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if err != nil {
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return result,
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fmt.Errorf(
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"%w: failed to read response body: %v",
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ErrInvalidResponse,
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err,
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)
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}
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result.RawResponse = body
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switch {
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case resp.StatusCode == http.StatusUnauthorized ||
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resp.StatusCode == http.StatusForbidden:
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return result, ErrAuthentication
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case resp.StatusCode == http.StatusRequestTimeout:
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return result, ErrTimeout
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case resp.StatusCode == http.StatusTooManyRequests:
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return result, ErrUnavailable
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case resp.StatusCode >= http.StatusInternalServerError:
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return result, ErrUnavailable
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case resp.StatusCode < http.StatusOK ||
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resp.StatusCode >= http.StatusMultipleChoices:
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return result, ErrRejected
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}
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var decoded convertResponse
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if err := json.Unmarshal(body, &decoded); err != nil {
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return result,
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fmt.Errorf("%w: %v", ErrInvalidResponse, err)
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}
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if !decoded.Meta.IsSuccess {
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return result, ErrRejected
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}
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if decoded.Data.IBAN == "" {
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return result,
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fmt.Errorf(
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"%w: successful response did not contain iban",
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ErrInvalidResponse,
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)
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}
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result.IBAN = decoded.Data.IBAN
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return result, nil
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}
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383
backend/internal/zarinhub/client_test.go
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383
backend/internal/zarinhub/client_test.go
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@@ -0,0 +1,383 @@
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package zarinhub
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import (
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"context"
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"encoding/json"
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"errors"
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"fmt"
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"net/http"
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"net/http/httptest"
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"testing"
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"time"
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)
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func TestClientConvertSuccess(t *testing.T) {
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const cardNumber = "6037997512345678"
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const expectedIBAN = "IR820540102680020817909002"
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const token = "test-token"
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server := httptest.NewServer(
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http.HandlerFunc(func(
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w http.ResponseWriter,
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r *http.Request,
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) {
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if r.Method != http.MethodPost {
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t.Errorf(
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"method = %s, want POST",
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r.Method,
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)
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}
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if got := r.Header.Get("Authorization"); got != "Bearer "+token {
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t.Errorf(
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"Authorization = %q, want %q",
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got,
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"Bearer "+token,
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)
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}
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if got := r.Header.Get("Content-Type"); got != "application/json" {
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t.Errorf(
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"Content-Type = %q, want application/json",
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got,
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)
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}
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var req convertRequest
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if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
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t.Fatalf(
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"decode request: %v",
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err,
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)
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}
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if req.Card != cardNumber {
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t.Errorf(
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"card = %q, want %q",
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req.Card,
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cardNumber,
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)
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}
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w.Header().Set(
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"Content-Type",
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"application/json",
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)
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fmt.Fprint(w, `{
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"data": {
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"bankName": "bankName_value",
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"card": "6037997512345678",
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"deposit": "0101234567001",
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"depositDescription": "depositDescription_value",
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"depositOwners": "depositOwners_value",
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"depositStatus": "depositStatus_value",
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"englishBankName": "englishBankName_value",
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"iban": "IR820540102680020817909002"
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},
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"meta": {
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"code": 0,
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"errorMessage": null,
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"errorType": null,
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"errors": [],
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"isSuccess": true,
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"message": "success",
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"status": "success",
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"trackId": "test-track-id"
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}
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}`)
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}),
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)
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defer server.Close()
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client := NewClient(
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&http.Client{
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Timeout: time.Second,
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},
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server.URL,
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token,
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)
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result, err := client.Convert(
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context.Background(),
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cardNumber,
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)
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if err != nil {
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t.Fatalf(
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"Convert() unexpected error: %v",
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err,
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)
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}
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if result.IBAN != expectedIBAN {
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t.Errorf(
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"IBAN = %q, want %q",
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result.IBAN,
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expectedIBAN,
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)
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}
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if result.UpstreamHTTPStatus != http.StatusOK {
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t.Errorf(
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"status = %d, want %d",
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result.UpstreamHTTPStatus,
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http.StatusOK,
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)
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}
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if len(result.RawResponse) == 0 {
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t.Error(
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"expected raw response to be preserved",
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)
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}
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}
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func TestClientReturnsRejectedForApplicationFailure(
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t *testing.T,
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) {
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server := httptest.NewServer(
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http.HandlerFunc(func(
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w http.ResponseWriter,
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r *http.Request,
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) {
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w.Header().Set(
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"Content-Type",
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"application/json",
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)
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fmt.Fprint(w, `{
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"data": {},
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"meta": {
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"trackId": null,
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"status": "error",
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"isSuccess": false,
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"code": -1,
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"message": "request failed",
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"errorMessage": "invalid parameters",
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"errorType": "validation_error",
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"errors": []
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}
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}`)
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}),
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)
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defer server.Close()
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client := NewClient(
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&http.Client{
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Timeout: time.Second,
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},
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server.URL,
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"test-token",
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)
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result, err := client.Convert(
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context.Background(),
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"6037997512345678",
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)
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if !errors.Is(err, ErrRejected) {
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t.Fatalf(
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"error = %v, want ErrRejected",
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err,
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)
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}
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if result.UpstreamHTTPStatus != http.StatusOK {
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t.Errorf(
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"status = %d, want 200",
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result.UpstreamHTTPStatus,
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)
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}
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if len(result.RawResponse) == 0 {
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t.Error(
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"expected raw response to be preserved",
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)
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}
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}
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func TestClientMapsHTTPStatusErrors(t *testing.T) {
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tests := []struct {
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name string
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status int
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wantErr error
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}{
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{
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name: "unauthorized",
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status: http.StatusUnauthorized,
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wantErr: ErrAuthentication,
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},
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{
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name: "forbidden",
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status: http.StatusForbidden,
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wantErr: ErrAuthentication,
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},
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{
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name: "request timeout",
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status: http.StatusRequestTimeout,
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wantErr: ErrTimeout,
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},
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{
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name: "rate limited",
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status: http.StatusTooManyRequests,
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wantErr: ErrUnavailable,
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},
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{
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name: "server error",
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status: http.StatusInternalServerError,
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wantErr: ErrUnavailable,
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},
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{
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name: "bad request",
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status: http.StatusBadRequest,
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wantErr: ErrRejected,
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},
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}
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for _, tt := range tests {
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t.Run(
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tt.name,
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func(t *testing.T) {
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server := httptest.NewServer(
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http.HandlerFunc(func(
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w http.ResponseWriter,
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r *http.Request,
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) {
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w.WriteHeader(tt.status)
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fmt.Fprint(
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w,
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`{"error":"test"}`,
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)
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}),
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)
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defer server.Close()
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client := NewClient(
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&http.Client{
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Timeout: time.Second,
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},
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server.URL,
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"test-token",
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)
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result, err := client.Convert(
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context.Background(),
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"6037997512345678",
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)
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if !errors.Is(err, tt.wantErr) {
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t.Fatalf(
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"error = %v, want %v",
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err,
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tt.wantErr,
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)
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}
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if result.UpstreamHTTPStatus != tt.status {
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t.Errorf(
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"status = %d, want %d",
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result.UpstreamHTTPStatus,
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tt.status,
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)
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}
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if len(result.RawResponse) == 0 {
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t.Error(
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"expected raw response to be preserved",
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)
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}
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},
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)
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}
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}
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func TestClientReturnsInvalidResponseForMalformedJSON(
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t *testing.T,
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) {
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server := httptest.NewServer(
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http.HandlerFunc(func(
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w http.ResponseWriter,
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r *http.Request,
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) {
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w.WriteHeader(http.StatusOK)
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fmt.Fprint(
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w,
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`{not-json}`,
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)
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}),
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)
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defer server.Close()
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client := NewClient(
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&http.Client{
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Timeout: time.Second,
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},
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server.URL,
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"test-token",
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)
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result, err := client.Convert(
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context.Background(),
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"6037997512345678",
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)
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if !errors.Is(err, ErrInvalidResponse) {
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t.Fatalf(
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"error = %v, want ErrInvalidResponse",
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err,
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)
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}
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if result.UpstreamHTTPStatus != http.StatusOK {
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t.Errorf(
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"status = %d, want 200",
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result.UpstreamHTTPStatus,
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)
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}
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}
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func TestClientReturnsTimeout(t *testing.T) {
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server := httptest.NewServer(
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http.HandlerFunc(func(
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w http.ResponseWriter,
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r *http.Request,
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) {
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time.Sleep(200 * time.Millisecond)
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fmt.Fprint(
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w,
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`{}`,
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)
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}),
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)
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defer server.Close()
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client := NewClient(
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&http.Client{
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Timeout: 50 * time.Millisecond,
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},
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server.URL,
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"test-token",
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)
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_, err := client.Convert(
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context.Background(),
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"6037997512345678",
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)
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if !errors.Is(err, ErrTimeout) {
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t.Fatalf(
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"error = %v, want ErrTimeout",
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err,
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)
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}
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}
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11
backend/internal/zarinhub/errors.go
Normal file
11
backend/internal/zarinhub/errors.go
Normal file
@@ -0,0 +1,11 @@
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package zarinhub
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|
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import "errors"
|
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|
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var (
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ErrAuthentication = errors.New("zarinhub authentication failed")
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ErrTimeout = errors.New("zarinhub request timed out")
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ErrUnavailable = errors.New("zarinhub service unavailable")
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ErrRejected = errors.New("zarinhub rejected request")
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ErrInvalidResponse = errors.New("zarinhub returned invalid response")
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)
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32
backend/internal/zarinhub/models.go
Normal file
32
backend/internal/zarinhub/models.go
Normal file
@@ -0,0 +1,32 @@
|
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package zarinhub
|
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|
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type convertRequest struct {
|
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Card string `json:"card"`
|
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}
|
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|
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type convertResponse struct {
|
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Data responseData `json:"data"`
|
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Meta responseMeta `json:"meta"`
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}
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type responseData struct {
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BankName string `json:"bankName"`
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Card string `json:"card"`
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Deposit string `json:"deposit"`
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DepositDescription string `json:"depositDescription"`
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DepositOwners string `json:"depositOwners"`
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DepositStatus string `json:"depositStatus"`
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EnglishBankName string `json:"englishBankName"`
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IBAN string `json:"iban"`
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}
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type responseMeta struct {
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Code int `json:"code"`
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ErrorMessage *string `json:"errorMessage"`
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ErrorType *string `json:"errorType"`
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Errors []any `json:"errors"`
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IsSuccess bool `json:"isSuccess"`
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Message string `json:"message"`
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Status string `json:"status"`
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TrackID *string `json:"trackId"`
|
||||
}
|
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Reference in New Issue
Block a user