Add ARC client compatibility: X-SkipTxValidation header, title field, response shape fixes (#36)

- Add X-SkipTxValidation header support (sets both SkipFeeValidation and SkipScriptValidation)
- Add title field to TransactionStatus response
- Remove omitempty from status and competingTxs fields to match ARC response shape
- Add log_level to config.example.yaml

Author: shruggr

config.example.yaml

@@ -2,6 +2,7 @@
 # Environment variables can override any setting using ARCADE_ prefix
 # Example: ARCADE_SERVER_ADDRESS=:9090 overrides server.address
 network: main
+log_level: info  # debug, info, warn, error
 storage_path: ~/.arcade
 server:
   address: ":3011"

handlers/webhook.go

@@ -162,6 +162,7 @@ func (h *WebhookHandler) deliverWebhook(ctx context.Context, sub models.Submissi
 		slog.String("status", string(status.Status)))
 
 	status.StatusCode = http.StatusOK
+	status.Title = "OK"
 	payloadBytes, err := json.Marshal(status)
 	if err != nil {
 		h.logger.Error("Failed to marshal payload",

models/transaction.go

@@ -39,13 +39,14 @@ func (h *HexBytes) UnmarshalJSON(data []byte) error {
 type TransactionStatus struct {
 	TxID         string    `json:"txid"`
 	Status       Status    `json:"txStatus"`
-	StatusCode   int       `json:"status,omitempty"`
+	StatusCode   int       `json:"status"`
+	Title        string    `json:"title"`
 	Timestamp    time.Time `json:"timestamp"`
 	BlockHash    string    `json:"blockHash,omitempty"`
 	BlockHeight  uint64    `json:"blockHeight,omitempty"`
 	MerklePath   HexBytes  `json:"merklePath,omitempty"`
 	ExtraInfo    string    `json:"extraInfo,omitempty"`
-	CompetingTxs []string  `json:"competingTxs,omitempty"`
+	CompetingTxs []string  `json:"competingTxs"`
 	CreatedAt    time.Time `json:"-"`
 }
 

routes/fiber/routes.go

@@ -128,6 +128,7 @@ func (r *Routes) handlePostTx(c *fiber.Ctx) error {
 	}
 
 	status.StatusCode = http.StatusOK
+	status.Title = "OK"
 	return c.JSON(status)
 }
 
@@ -176,6 +177,7 @@ func (r *Routes) handlePostTxs(c *fiber.Ctx) error {
 
 	for _, s := range statuses {
 		s.StatusCode = http.StatusOK
+		s.Title = "OK"
 	}
 	return c.JSON(statuses)
 }
@@ -216,6 +218,7 @@ func (r *Routes) handleGetTx(c *fiber.Ctx) error {
 		return c.Status(http.StatusInternalServerError).JSON(fiber.Map{"error": "Failed to get status"})
 	}
 	status.StatusCode = http.StatusOK
+	status.Title = "OK"
 	return c.JSON(status)
 }
 
@@ -319,12 +322,13 @@ func (r *Routes) parseTransactionBody(c *fiber.Ctx) ([]byte, error) {
 
 // extractSubmitOptions extracts SubmitOptions from HTTP headers.
 func (r *Routes) extractSubmitOptions(c *fiber.Ctx) *models.SubmitOptions {
+	skipAll := c.Get("X-SkipTxValidation") == "true"
 	return &models.SubmitOptions{
 		CallbackURL:          c.Get("X-CallbackUrl"),
 		CallbackToken:        c.Get("X-CallbackToken"),
 		FullStatusUpdates:    c.Get("X-FullStatusUpdates") == "true",
-		SkipFeeValidation:    c.Get("X-SkipFeeValidation") == "true",
-		SkipScriptValidation: c.Get("X-SkipScriptValidation") == "true",
+		SkipFeeValidation:    skipAll || c.Get("X-SkipFeeValidation") == "true",
+		SkipScriptValidation: skipAll || c.Get("X-SkipScriptValidation") == "true",
 	}
 }