better toString in ErrorMessage

Author: while1618

backend/spring-boot/src/main/java/org/bugzkit/api/shared/error/ErrorMessage.java

@@ -1,15 +1,17 @@
 package org.bugzkit.api.shared.error;
 
+import com.fasterxml.jackson.annotation.JsonFormat;
 import java.time.LocalDateTime;
-import java.time.format.DateTimeFormatter;
 import java.util.ArrayList;
 import java.util.List;
 import lombok.Getter;
 import org.springframework.http.HttpStatus;
 
 @Getter
 public class ErrorMessage {
+  @JsonFormat(pattern = "yyyy-MM-dd'T'HH:mm:ss")
   private final LocalDateTime timestamp;
+
   private final int status;
   private final String error;
   private final List<String> codes;
@@ -24,22 +26,4 @@ public ErrorMessage(HttpStatus status) {
   public void addCode(String code) {
     this.codes.add(code);
   }
-
-  @Override
-  public String toString() {
-    StringBuilder sb = new StringBuilder();
-    sb.append("{\"timestamp\":\"");
-    sb.append(timestamp.format(DateTimeFormatter.ISO_DATE_TIME));
-    sb.append("\",\"status\":");
-    sb.append(status);
-    sb.append(",\"error\":\"");
-    sb.append(error);
-    sb.append("\",\"codes\":[");
-    for (int i = 0; i < codes.size(); i++) {
-      if (i > 0) sb.append(",");
-      sb.append("\"").append(codes.get(i)).append("\"");
-    }
-    sb.append("]}");
-    return sb.toString();
-  }
 }