chore: add response format param in completion (#42)

core/src/main/java/ai/z/openapi/service/model/ChatCompletionCreateParams.java

@@ -7,9 +7,7 @@ import com.fasterxml.jackson.annotation.JsonProperty;
 import lombok.*;
 import lombok.experimental.SuperBuilder;
 
-import java.util.HashMap;
 import java.util.List;
-import java.util.Map;
 
 @EqualsAndHashCode(callSuper = true)
 @SuperBuilder
@@ -75,6 +73,14 @@ public class ChatCompletionCreateParams extends CommonRequest implements ClientR
 	 */
 	private List<String> stop;
 
+	/**
+	 * Specifies the response format of the model. Defaults to text. Supports two
+	 * formats:"text" "json_object". When using JSON mode, it’s recommended to clearly
+	 * request JSON output in the prompt.
+	 */
+	@JsonProperty("response_format")
+	private ResponseFormat responseFormat;
+
 	/**
 	 * Sensitive word detection control
 	 */

core/src/main/java/ai/z/openapi/service/model/ChatThinkingType.java

@@ -0,0 +1,16 @@
+package ai.z.openapi.service.model;
+
+import com.fasterxml.jackson.annotation.JsonValue;
+
+public enum ChatThinkingType {
+
+	ENABLED,
+
+	DISABLED,;
+
+	@JsonValue
+	public String value() {
+		return this.name().toLowerCase();
+	}
+
+}

core/src/main/java/ai/z/openapi/service/model/ResponseFormat.java

@@ -0,0 +1,18 @@
+package ai.z.openapi.service.model;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+@NoArgsConstructor
+@AllArgsConstructor
+@Data
+@Builder
+public class ResponseFormat {
+
+	@JsonProperty("type")
+	private String type;
+
+}

core/src/main/java/ai/z/openapi/service/model/ResponseFormatType.java

@@ -0,0 +1,16 @@
+package ai.z.openapi.service.model;
+
+import com.fasterxml.jackson.annotation.JsonValue;
+
+public enum ResponseFormatType {
+
+	TEXT,
+
+	JSON_OBJECT,;
+
+	@JsonValue
+	public String value() {
+		return this.name().toLowerCase();
+	}
+
+}

samples/src/main/ai.z.openapi.samples/ChatCompletionExample.java

@@ -33,7 +33,8 @@ public class ChatCompletionExample {
                     .build()
             ))
             .stream(false)
-            .thinking(ChatThinking.builder().type("enabled").build())
+            .thinking(ChatThinking.builder().type(ChatThinkingType.ENABLED.value()).build())
+            .responseFormat(ResponseFormat.builder().type(ResponseFormatType.TEXT.value()).build())
             .temperature(0.7f)
             .maxTokens(1024)
             .build();