Update CarrierService create and update methods

CHANGELOG.md

@@ -1,5 +1,10 @@
 # CHANGELOG
 
+## Next Release
+
+- Routes `UpsAccount`, `UpsMailInnovationsAccount`, and `UpsSurepostAccount` create/update requests to the new `/ups_oauth_registrations` endpoint
+  - Starting `2024-08-05`, UPS accounts will require a new payload to register or update. See [UPS OAuth 2.0 Update](https://support.easypost.com/hc/en-us/articles/26635027512717-UPS-OAuth-2-0-Update?utm_medium=email&_hsenc=p2ANqtz-96MmFtWICOzy9sKRbbcZSiMovZSrY3MSX1_bgY9N3f9yLVfWQdLhjAGq-SmNcOnDIS6GYhZ0OApjDBrGkKyLLMx1z6_TFOVp6-wllhEFQINrkuRuc&_hsmi=313130292&utm_content=313130292&utm_source=hs_email) for more details
+
 ## v7.2.1 (2024-04-12)
 
 - Fix `Fields` serialization bug causing carrier account operations to fail

Makefile

@@ -28,8 +28,13 @@ install-styleguide: | update-examples-submodule
 	curl -LJs https://github.com/checkstyle/checkstyle/releases/download/checkstyle-10.3.1/checkstyle-10.3.1-all.jar -o checkstyle.jar
 	sh examples/symlink_directory_files.sh examples/style_guides/java .
 
+## init-examples-submodule - Initialize the examples submodule
+init-examples-submodule:
+	git submodule init
+	git submodule update
+
 ## install - Install requirements
-install: | update-examples-submodule
+install: | init-examples-submodule
 
 ## lint - Lints the project
 lint: checkstyle scan

src/main/java/com/easypost/Constants.java

@@ -62,7 +62,12 @@ public abstract static class ErrorCodes {
 
     public abstract static class CarrierAccountTypes {
         public static final List<String> CARRIER_TYPES_WITH_CUSTOM_WORKFLOW = ImmutableList.of("FedexAccount",
-                "UpsAccount", "FedexSmartpostAccount");
+                "FedexSmartpostAccount");
+    }
+
+    public abstract static class UpsAccountTypes {
+        public static final List<String> UPS_OAUTH_CARRIER_ACCOUNT_TYPES = ImmutableList.of("UpsAccount",
+                "UpsMailInnovationsAccount", "UpsSurepostAccount");
     }
 
     public abstract static class Http {

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

@@ -33,14 +33,8 @@ public class CarrierAccountService {
      */
     public CarrierAccount create(final Map<String, Object> params) throws EasyPostException {
         String type = (String) params.get("type");
-        if (type == null) {
-            throw new MissingParameterError(
-                    String.format(Constants.ErrorMessages.MISSING_REQUIRED_PARAMETER, "carrier account type"));
-        }
-
         Map<String, Object> wrappedParams = new HashMap<String, Object>();
-        wrappedParams.put("carrier_account", params);
-
+        wrappedParams.put(selectTopLayerKey(type), params);
         String endpoint = selectCarrierAccountCreationEndpoint(type);
 
         return Requestor.request(RequestMethod.POST, endpoint, wrappedParams, CarrierAccount.class, client);
@@ -88,16 +82,20 @@ public List<CarrierAccount> all(final Map<String, Object> params) throws EasyPos
     /**
      * Update this carrier account.
      *
-     * @param params parameters to update.
      * @param id     The ID of carrier account
+     * @param params parameters to update.
      * @return updated CarrierAccount object.
      * @throws EasyPostException when the request fails.
      */
     public CarrierAccount update(String id, final Map<String, Object> params) throws EasyPostException {
+        CarrierAccount carrierAccount = this.retrieve(id);
+        String type = (String) carrierAccount.getType();
         Map<String, Object> wrappedParams = new HashMap<String, Object>();
-        wrappedParams.put("carrier_account", params);
+        wrappedParams.put(selectTopLayerKey(type), params);
 
-        String endpoint = "carrier_accounts/" + id;
+        String endpoint = (Constants.UpsAccountTypes.UPS_OAUTH_CARRIER_ACCOUNT_TYPES.contains(type) 
+                  ? "ups_oauth_registrations/"
+                  : "carrier_accounts/") + id;
 
         return Requestor.request(RequestMethod.PUT, endpoint, wrappedParams, CarrierAccount.class,
                 client);
@@ -125,8 +123,28 @@ public void delete(String id) throws EasyPostException {
     private static String selectCarrierAccountCreationEndpoint(final String carrierAccountType) {
         if (Constants.CarrierAccountTypes.CARRIER_TYPES_WITH_CUSTOM_WORKFLOW.contains(carrierAccountType)) {
             return "carrier_accounts/register";
+        } else if (Constants.UpsAccountTypes.UPS_OAUTH_CARRIER_ACCOUNT_TYPES.contains(carrierAccountType)) {
+            return "ups_oauth_registrations";
         } else {
             return "carrier_accounts";
         }
     }
+
+    /**
+     * Select the top-layer key for the carrier account creation/update request based on the
+     * carrier type.
+     *
+     * @param carrierAccountType The type of carrier account to create.
+     * @return The top-layer key for the carrier account creation/update request.
+     */
+    private static String selectTopLayerKey(final String carrierAccountType) throws EasyPostException {
+        if (carrierAccountType == null) {
+            throw new MissingParameterError(
+                    String.format(Constants.ErrorMessages.MISSING_REQUIRED_PARAMETER, "carrier account type"));
+        }
+
+        return Constants.UpsAccountTypes.UPS_OAUTH_CARRIER_ACCOUNT_TYPES.contains(carrierAccountType)
+            ? "ups_oauth_registrations"
+            : "carrier_account";
+    }
 }