feat: add tracking_codes to tracker index endpoint

Author: Justintime50

CHANGELOG.md

@@ -3,6 +3,7 @@
 ## Next Release
 
 - Adds `WebhookCustomHeader` model, allowing `custom_headers` to be passed when creating/updating a webhook
+- Adds `tracking_codes` param to tracker index endpoint
 - Fixes error parsing
   - Allows for alternative format of `errors` field (previously we deserialized the `errors` field into a list of `Error` objects; however, sometimes the errors are simply a list of strings. This change make the `errors` field a list of `Object` allowing for either the new `FieldError` object or a list of strings. Users will need to check for the type of error returned and handle appropriately)
   - Removed the unused `Error` model

src/main/java/com/easypost/model/TrackerCollection.java

@@ -14,6 +14,9 @@ public class TrackerCollection extends PaginatedCollection<Tracker> {
     @Setter
     private String trackingCode;
 
+    @Setter
+    private List<String> trackingCodes;
+
     @Setter
     private String carrier;
 
@@ -33,6 +36,9 @@ protected final Map<String, Object> buildNextPageParameters(List<Tracker> tracke
         if (trackingCode != null) {
             parameters.put("tracking_code", trackingCode);
         }
+        if (trackingCodes != null) {
+            parameters.put("tracking_codes", trackingCodes);
+        }
         if (carrier != null) {
             parameters.put("carrier", carrier);
         }

src/main/java/com/easypost/service/TrackerService.java

@@ -68,6 +68,7 @@ public TrackerCollection all(final Map<String, Object> params) throws EasyPostEx
                 Requestor.request(RequestMethod.GET, endpoint, params, TrackerCollection.class, client);
         // we store the params in the collection so that we can use them to get the next page
         trackerCollection.setTrackingCode(InternalUtilities.getOrDefault(params, "tracking_code", null));
+        trackerCollection.setTrackingCodes(InternalUtilities.getOrDefault(params, "tracking_codes", null));
         trackerCollection.setCarrier(InternalUtilities.getOrDefault(params, "carrier", null));
 
         return trackerCollection;