upgraded http request body

pom.xml

@@ -47,7 +47,16 @@
             <artifactId>gson</artifactId>
             <version>2.11.0</version>
         </dependency>
-
+        <dependency>
+            <groupId>com.fasterxml.jackson.core</groupId>
+            <artifactId>jackson-databind</artifactId>
+            <version>2.18.1</version>
+        </dependency>
+        <dependency>
+            <groupId>com.fasterxml.jackson.dataformat</groupId>
+            <artifactId>jackson-dataformat-xml</artifactId>
+            <version>2.15.2</version>
+        </dependency>
         <dependency>
             <groupId>org.postgresql</groupId>
             <artifactId>postgresql</artifactId>

src/main/java/io/github/lumijiez/core/http/HttpRequestBody.java

@@ -0,0 +1,34 @@
+package io.github.lumijiez.core.http;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.dataformat.xml.XmlMapper;
+
+import java.io.IOException;
+
+public class HttpRequestBody {
+    private final String rawContent;
+    private final HttpContentType contentType;
+    private static final ObjectMapper jsonMapper = new ObjectMapper();
+    private static final XmlMapper xmlMapper = new XmlMapper();
+
+    public HttpRequestBody(String rawContent, HttpContentType contentType) {
+        this.rawContent = rawContent;
+        this.contentType = contentType;
+    }
+
+    public <T> T parseAs(Class<T> clazz) throws IOException {
+        return switch (contentType) {
+            case APPLICATION_JSON -> jsonMapper.readValue(rawContent, clazz);
+            case APPLICATION_XML -> xmlMapper.readValue(rawContent, clazz);
+            default -> throw new IOException("Unsupported content type for parsing: " + contentType);
+        };
+    }
+
+    public String getRawContent() {
+        return rawContent;
+    }
+
+    public HttpContentType getContentType() {
+        return contentType;
+    }
+}