brokeyourbike/providusbank-api-client-go

package providusbank

import (
    "context"
    "encoding/json"
    "fmt"
    "io"
    "net/http"

    "github.com/sirupsen/logrus"
)

type HttpClient interface {
    Do(req *http.Request) (*http.Response, error)
}

type client struct {
    httpClient HttpClient
    logger     *logrus.Logger
}

// ClientOption is a function that configures a Client.
type ClientOption func(*client)

// WithHTTPClient sets the HTTP client for the paystack API client.
func WithHTTPClient(c HttpClient) ClientOption {
    return func(target *client) {
        target.httpClient = c
    }
}

// WithLogger sets the *logrus.Logger for the paystack API client.
func WithLogger(l *logrus.Logger) ClientOption {
    return func(target *client) {
        target.logger = l
    }
}

func (c *client) do(ctx context.Context, req *request) error {
    resp, err := c.httpClient.Do(req.req)
    if err != nil {
        return fmt.Errorf("failed to send request: %w", err)
    }
    defer resp.Body.Close()

    b, err := io.ReadAll(resp.Body)
    if err != nil {
        return fmt.Errorf("failed to read response body: %w", err)
    }

    if c.logger != nil {
        c.logger.WithContext(ctx).WithFields(logrus.Fields{
            "http.response.status_code":  resp.StatusCode,
            "http.response.body.content": string(b),
            "http.response.headers":      resp.Header,
        }).Debug("providusbank.client -> response")
    }

    if resp.StatusCode >= 500 {
        var errResponse ErrResponse
        if err := json.Unmarshal(b, &errResponse); err != nil {
            return fmt.Errorf("cannot decode err response: %w", err)
        }
        return errResponse
    }

    if req.decodeTo != nil {
        if err := json.Unmarshal(b, req.decodeTo); err != nil {
            return fmt.Errorf("failed to decode response: %w", err)
        }
    }

    return nil
}