init

internal/imaginary/client.go

@@ -0,0 +1,77 @@
+package imaginary
+
+import (
+	"bytes"
+	"fmt"
+	"io"
+	"mime/multipart"
+	"net/http"
+)
+
+type Client struct {
+	baseURL string
+	http    *http.Client
+}
+
+func New(baseURL string) *Client {
+	return &Client{
+		baseURL: baseURL,
+		http:    &http.Client{},
+	}
+}
+
+type ProcessOptions struct {
+	Width   int
+	Height  int
+	Quality int
+	Type    string
+}
+
+func (c *Client) Process(src io.Reader, filename string, opts ProcessOptions) ([]byte, error) {
+	var body bytes.Buffer
+	writer := multipart.NewWriter(&body)
+
+	part, err := writer.CreateFormFile("file", filename)
+	if err != nil {
+		return nil, err
+	}
+	if _, err := io.Copy(part, src); err != nil {
+		return nil, err
+	}
+	writer.Close()
+
+	if opts.Width == 0 {
+		opts.Width = 2000
+	}
+	if opts.Height == 0 {
+		opts.Height = 2000
+	}
+	if opts.Quality == 0 {
+		opts.Quality = 80
+	}
+	if opts.Type == "" {
+		opts.Type = "webp"
+	}
+
+	url := fmt.Sprintf("%s/resize?width=%d&height=%d&quality=%d&type=%s",
+		c.baseURL, opts.Width, opts.Height, opts.Quality, opts.Type)
+
+	req, err := http.NewRequest("POST", url, &body)
+	if err != nil {
+		return nil, err
+	}
+	req.Header.Set("Content-Type", writer.FormDataContentType())
+
+	resp, err := c.http.Do(req)
+	if err != nil {
+		return nil, err
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode != http.StatusOK {
+		errBody, _ := io.ReadAll(resp.Body)
+		return nil, fmt.Errorf("imaginary error %d: %s", resp.StatusCode, string(errBody))
+	}
+
+	return io.ReadAll(resp.Body)
+}