dispenser/dispenserclient.go

@@ -296,19 +296,20 @@ func (c *Client) DispenserStart(ctx context.Context) (string, error) {
 		return stockStatus, fmt.Errorf("[%s] to encoder: %w", funcName, err)
 	}
 
-	deadline := time.Now().Add(6 * time.Second)
+	deadline := time.Now().Add(3 * time.Second)
 
 	for {
-		time.Sleep(delay * 2)
 		if time.Now().After(deadline) {
-			return stockStatus, nil
+			return stockStatus, fmt.Errorf("[%s] timeout waiting keycard at encoder position", funcName)
 		}
 
-		status, _ = c.do(ctx, cmdStatus)
+		status, err = c.do(ctx, cmdStatus)
+		if err != nil {
+			return stockStatus, fmt.Errorf("[%s] re-check status: %w", funcName, err)
+		}
 
 		stockStatus = stockTake(status)
 		c.setStock(status)
-		logStatus(status)
 
 		// error states first
 		if isCardWellEmpty(status) {
@@ -318,6 +319,8 @@ func (c *Client) DispenserStart(ctx context.Context) (string, error) {
 		if isAtEncoderPosition(status) {
 			return stockStatus, nil
 		}
+
+		time.Sleep(100 * time.Millisecond)
 	}
 }
 
@@ -330,13 +333,8 @@ func (c *Client) DispenserFinal(ctx context.Context) (string, error) {
 		return stockStatus, fmt.Errorf("[%s] out of mouth: %w", funcName, err)
 	}
 
-	time.Sleep(delay)
+	time.Sleep(200 * time.Millisecond)
-	status, err := c.do(ctx, cmdStatus)
-	if err == nil && len(status) >= 4 {
-		c.setStock(status)
-	}
 
-	time.Sleep(delay)
 	if err := c.ToEncoder(ctx); err != nil {
 		return stockStatus, fmt.Errorf("[%s] to encoder: %w", funcName, err)
 	}
@@ -345,26 +343,30 @@ func (c *Client) DispenserFinal(ctx context.Context) (string, error) {
 		logStatus(status)
 	}()
 
-	deadline := time.Now().Add(6 * time.Second)
+	deadline := time.Now().Add(3 * time.Second)
 
 	for {
-		time.Sleep(delay * 2)
 		if time.Now().After(deadline) {
 			return stockStatus, nil
 		}
 
-		status, _ = c.do(ctx, cmdStatus)
+		status, err := c.do(ctx, cmdStatus)
+		if err != nil {
+			return stockStatus, nil
+		}
 
 		stockStatus = stockTake(status)
 		c.setStock(status)
-		logStatus(status)
 
 		if isCardWellEmpty(status) {
-			return stockStatus, nil
+			return stockStatus, fmt.Errorf(stockStatus)
 		}
 
 		if isAtEncoderPosition(status) {
 			return stockStatus, nil
 		}
+
+		time.Sleep(100 * time.Millisecond)
 	}
+
 }

handlers/handlers.go

@@ -191,7 +191,6 @@ func (app *App) takePayment(w http.ResponseWriter, r *http.Request) {
 			writeTransactionResult(w, http.StatusServiceUnavailable, theResponse)
 			return
 		}
-		
 	}
 
 	if r.Method == http.MethodOptions {

main.go

@@ -29,7 +29,7 @@ import (
 )
 
 const (
-	buildVersion     = "1.2.5"
+	buildVersion     = "1.2.3"
 	serviceName      = "hardlink"
 	pollingFrequency = 8 * time.Second
 )

release notes.md

@@ -2,12 +2,6 @@
 
 builtVersion is a const in main.go
 
-#### 1.2.5 - 20 March 2026
-removed early return on error when checking dispenser status in the start and final loops.
-
-#### 1.2.4 - 18 March 2026
-added check if keycard at the encoder position before trying to encode key
-
 #### 1.2.3 - 17 March 2026
 added check if keycard at the encoder position before trying to encode key