1 files changed, 31 insertions, 0 deletions
diff --git a/src/main/java/org/traccar/config/Keys.java b/src/main/java/org/traccar/config/Keys.java
index 2c5dcefd5..d88b36d28 100644
--- a/src/main/java/org/traccar/config/Keys.java
+++ b/src/main/java/org/traccar/config/Keys.java
@@ -101,6 +101,37 @@ public final class Keys {
             "forward.json", Boolean.class);
 
     /**
+     * Position forwarding retrying enable. When enabled, additional attempts are made to deliver positions. If initial
+     * delivery fails, because of an unreachable server or an HTTP response different from '2xx', the software waits
+     * for 'forward.retry.delay' milliseconds to retry delivery. On subsequent failures, this delay is duplicated.
+     * If forwarding is retried for 'forward.retry.count', retrying is canceled and the position is dropped. Positions
+     * pending to be delivered are limited to 'forward.retry.limit'. If this limit is reached, positions get discarded.
+     */
+    public static final ConfigKey FORWARD_RETRY_ENABLE = new ConfigKey(
+            "forward.retry.enable", Boolean.class);
+
+    /**
+     * Position forwarding retry first delay in milliseconds.
+     * Can be set to anything greater than 0. Defaults to 100 milliseconds.
+     */
+    public static final ConfigKey FORWARD_RETRY_DELAY = new ConfigKey(
+            "forward.retry.delay", Integer.class);
+
+    /**
+     * Position forwarding retry maximum retries.
+     * Can be set to anything greater than 0. Defaults to 10 retries.
+     */
+    public static final ConfigKey FORWARD_RETRY_COUNT = new ConfigKey(
+            "forward.retry.count", Integer.class);
+
+    /**
+     * Position forwarding retry pending positions limit.
+     * Can be set to anything greater than 0. Defaults to 100 positions.
+     */
+    public static final ConfigKey FORWARD_RETRY_LIMIT = new ConfigKey(
+            "forward.retry.limit", Integer.class);
+
+    /**
      * Boolean flag to enable or disable position filtering.
      */
     public static final ConfigKey FILTER_ENABLE = new ConfigKey(