diff --git a/demo/src/main/java/com/example/demo/ApiController.java b/demo/src/main/java/com/example/demo/ApiController.java
index ee0c6a4..d816048 100644
--- a/demo/src/main/java/com/example/demo/ApiController.java
+++ b/demo/src/main/java/com/example/demo/ApiController.java
@@ -1,62 +1,53 @@
 package com.example.demo;
 
 import java.util.Date;
+import java.util.Map;
 import java.util.List;
+import java.util.HashMap;
 
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
-import org.springframework.web.bind.annotation.GetMapping;
-import org.springframework.web.bind.annotation.PathVariable;
-import org.springframework.web.bind.annotation.PostMapping;
-import org.springframework.web.bind.annotation.PutMapping;
-import org.springframework.web.bind.annotation.RequestBody;
 import org.springframework.web.bind.annotation.RequestMapping;
-import org.springframework.web.bind.annotation.RequestParam;
 import org.springframework.web.bind.annotation.RestController;
+import org.springframework.web.bind.annotation.DeleteMapping;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.PutMapping;
+import org.springframework.web.bind.annotation.PathVariable;
 
 @RestController
-@RequestMapping("/api")
+@RequestMapping("/api/book")
 public class ApiController {
     private final Logger log = LoggerFactory.getLogger(ApiController.class);
+    private final Map<Integer, Books> book = new HashMap<>();
 
-    @GetMapping
-    public String get(@RequestParam(name = "name", defaultValue = "World") String name) {
-        return String.format("Hello, %s!", name);
-    }
-
-    @GetMapping("/test")
-    public String getTest() {
-        return new Date().toString();
-    }
-
-    @GetMapping("/num")
-    public Integer getNum() {
-        return 10;
-    }
-
-    @GetMapping("/list")
-    public List<Integer> getList() {
-        return List.of(10, 20, 30, 40, 50);
-    }
-
-    @GetMapping("/map")
-    public TestDto getMap() {
-        return new TestDto("Ivanov", "Ivan");
-    }
-
-    @PostMapping("/map")
-    public TestDto postMap(@RequestBody TestDto testDto) {
-        return testDto;
+    @GetMapping("/{id}")
+    public Books getBook(@PathVariable(name = "id") int id) {
+        return book.get(id);
     }
 
     @PostMapping
-    public String postMethodName(@RequestBody String name) {
-        return get(name);
+    public Books postBook(@RequestBody Books entity) {
+        book.put(book.size(), entity);
+        return entity;
     }
 
-    @PutMapping("/{name}")
-    public String putMethodName(@PathVariable(name = "name") String name, @RequestBody String entity) {
-        log.info("The body value is {}", entity);
-        return get(name);
+    @PutMapping("/{id}")
+    public Books putMethodBook(@PathVariable(name = "id") int id, @RequestBody Books entity) {
+        book.replace(id, entity);
+        return entity;
     }
-}
+
+    @GetMapping
+    public List<Books> getMethodAll() {
+        return List.copyOf(book.values());
+    }
+
+    @DeleteMapping("/{id}")
+    public Books delMethod(@PathVariable(name = "id") int id) {
+        Books old = book.get(id);
+        book.remove(id);
+        return old;
+    }
+}
\ No newline at end of file
diff --git a/demo/src/main/java/com/example/demo/Books.java b/demo/src/main/java/com/example/demo/Books.java
new file mode 100644
index 0000000..cf04d86
--- /dev/null
+++ b/demo/src/main/java/com/example/demo/Books.java
@@ -0,0 +1,47 @@
+package com.example.demo;
+
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonProperty;
+
+public class Books {
+    private String name;
+    private double price;
+    private int typesId;
+    private int authorsId;
+    private String image;
+
+    @JsonCreator
+    public Books(
+            @JsonProperty(value = "name") String name,
+            @JsonProperty(value = "price") double price,
+            @JsonProperty(value = "typesId") int typesId,
+            @JsonProperty(value = "authorsId") int authorsId,
+            @JsonProperty(value = "image") String image) {
+        this.name = name;
+        this.price = price;
+        this.typesId = typesId;
+        this.authorsId = authorsId;
+        this.image = image;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public double getPrice() {
+        return price;
+    }
+
+    public int getTypesId() {
+        return typesId;
+    }
+
+    public int getAuthorsId() {
+        return authorsId;
+    }
+
+    public String getImage() {
+        return image;
+    }
+
+}
\ No newline at end of file
diff --git a/demo/src/main/java/com/example/demo/TestDto.java b/demo/src/main/java/com/example/demo/TestDto.java
deleted file mode 100644
index 8a52735..0000000
--- a/demo/src/main/java/com/example/demo/TestDto.java
+++ /dev/null
@@ -1,29 +0,0 @@
-package com.example.demo;
-
-import com.fasterxml.jackson.annotation.JsonCreator;
-import com.fasterxml.jackson.annotation.JsonProperty;
-
-public class TestDto {
-    private String shortName;
-    private String fullName;
-
-    public TestDto() {
-    }
-
-    @JsonCreator
-    public TestDto(
-            @JsonProperty(value = "shortName") String shortName,
-            @JsonProperty(value = "fullName") String fullName) {
-        this.shortName = shortName;
-        this.fullName = fullName;
-    }
-
-    public String getShortName() {
-        return shortName;
-    }
-
-    public String getFullName() {
-        return fullName;
-    }
-
-}