Introduce enum for auth type

Author: adityaalifn

src/main/java/io/getstream/chat/java/models/App.java

@@ -369,6 +369,17 @@ public enum HookType {
     UNKNOWN
   }
 
+  public enum AuthType {
+    @JsonProperty("keys")
+    KEYS,     // Using AWS access key and secret key
+    @JsonProperty("role")
+    ROLE,     // Using IAM role
+    @JsonProperty("resource")
+    RESOURCE, // Using resource-based policy
+    @JsonEnumDefaultValue
+    UNKNOWN
+  }
+
   @Data
   @NoArgsConstructor
   public static class EventHook {
@@ -402,7 +413,7 @@ public static class EventHook {
 
     @Nullable
     @JsonProperty("sqs_auth_type")
-    private String sqsAuthType;
+    private AuthType sqsAuthType;
 
     @Nullable
     @JsonProperty("sqs_key")
@@ -426,7 +437,7 @@ public static class EventHook {
 
     @Nullable
     @JsonProperty("sns_auth_type")
-    private String snsAuthType;
+    private AuthType snsAuthType;
 
     @Nullable
     @JsonProperty("sns_key")

src/test/java/io/getstream/chat/java/AppTest.java

@@ -215,7 +215,7 @@ void whenUpdatingAppSettingsWithSQSEventHook_thenNoException() throws StreamExce
     sqsHook.setEventTypes(Arrays.asList("user.presence.changed", "user.updated"));
     sqsHook.setSqsQueueURL("https://sqs.us-east-1.amazonaws.com/123456789012/MyQueue");
     sqsHook.setSqsRegion("us-east-1");
-    sqsHook.setSqsAuthType("resource");
+    sqsHook.setSqsAuthType(App.AuthType.RESOURCE);
     sqsHook.setCreatedAt(new Date());
     sqsHook.setUpdatedAt(new Date());
 
@@ -241,7 +241,7 @@ void whenUpdatingAppSettingsWithSNSEventHook_thenNoException() throws StreamExce
     snsHook.setEventTypes(Arrays.asList("channel.created", "channel.updated"));
     snsHook.setSnsTopicARN("arn:aws:sns:us-east-1:123456789012:MyTopic");
     snsHook.setSnsRegion("us-east-1");
-    snsHook.setSnsAuthType("resource");
+    snsHook.setSnsAuthType(App.AuthType.RESOURCE);
     snsHook.setCreatedAt(new Date());
     snsHook.setUpdatedAt(new Date());