imagekit: Added ImageKit backend

backend/imagekit/client/client.go

@@ -0,0 +1,66 @@
+// Package client provides a client for interacting with the ImageKit API.
+package client
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/rclone/rclone/fs"
+	"github.com/rclone/rclone/fs/fshttp"
+	"github.com/rclone/rclone/lib/rest"
+)
+
+// ImageKit main struct
+type ImageKit struct {
+	Prefix        string
+	UploadPrefix  string
+	Timeout       int64
+	UploadTimeout int64
+	PrivateKey    string
+	PublicKey     string
+	URLEndpoint   string
+	HTTPClient    *rest.Client
+}
+
+// NewParams is a struct to define parameters to imagekit
+type NewParams struct {
+	PrivateKey  string
+	PublicKey   string
+	URLEndpoint string
+}
+
+// New returns ImageKit object from environment variables
+func New(ctx context.Context, params NewParams) (*ImageKit, error) {
+
+	privateKey := params.PrivateKey
+	publicKey := params.PublicKey
+	endpointURL := params.URLEndpoint
+
+	switch {
+	case privateKey == "":
+		return nil, fmt.Errorf("ImageKit.io URL endpoint is required")
+	case publicKey == "":
+		return nil, fmt.Errorf("ImageKit.io public key is required")
+	case endpointURL == "":
+		return nil, fmt.Errorf("ImageKit.io private key is required")
+	}
+
+	cliCtx, cliCfg := fs.AddConfig(ctx)
+
+	cliCfg.UserAgent = "rclone/imagekit"
+	client := rest.NewClient(fshttp.NewClient(cliCtx))
+
+	client.SetUserPass(privateKey, "")
+	client.SetHeader("Accept", "application/json")
+
+	return &ImageKit{
+		Prefix:        "https://api.imagekit.io/v2",
+		UploadPrefix:  "https://upload.imagekit.io/api/v2",
+		Timeout:       60,
+		UploadTimeout: 3600,
+		PrivateKey:    params.PrivateKey,
+		PublicKey:     params.PublicKey,
+		URLEndpoint:   params.URLEndpoint,
+		HTTPClient:    client,
+	}, nil
+}