diff --git a/tepechin_kirill_lab_3/README.md b/tepechin_kirill_lab_3/README.md
new file mode 100644
index 0000000..8ddebaa
--- /dev/null
+++ b/tepechin_kirill_lab_3/README.md
@@ -0,0 +1,97 @@
+## Лабораторная работа №3, ПИбд-42 Тепечин Кирилл
+
+### Сервисы
+* `opop-service`
+* `document-service`
+
+### Синхронный обмен между микросервисами
+Синхронное взаимодействие осуществляется через `RestTemplate`
+
+Пример взаимодействия:
+
+````java
+restTemplate.getForObject(URL+ opopDto.getDocumentId(), DocumentInfo.class)
+````
+
+### Докерфайлы
+
+````dockerfile
+FROM eclipse-temurin:17-jdk-alpine
+VOLUME /tmp
+ARG JAR_FILE
+COPY ${JAR_FILE} app.jar
+ENTRYPOINT ["java","-jar","/app.jar"]
+````
+### docker-compose файл
+````yaml
+version: '3'
+services:
+  opop-service:
+    build:
+      context: /opop-service
+      dockerfile: Dockerfile
+      args:
+        JAR_FILE: build/libs/*.jar
+    ports:
+      - "8080:8080"
+    networks:
+      - my-network
+    environment:
+      server.forward-headers-strategy: framework
+
+  document-service:
+    build:
+      context: /document-service
+      dockerfile: Dockerfile
+      args:
+        JAR_FILE: build/libs/*.jar
+    ports:
+      - "8081:8081"
+    networks:
+      - my-network
+    environment:
+      server.forward-headers-strategy: framework
+
+  nginx:
+    image: nginx
+    ports:
+      - "80:80"
+    networks:
+      - my-network
+    volumes:
+      - ./nginx-conf:/etc/nginx/conf.d
+    depends_on:
+      - opop-service
+      - document-service
+
+networks:
+  my-network:
+    driver: bridge
+````
+
+### nginx.conf
+````
+server {
+    listen 80;
+
+    location /opop-service/ {
+        proxy_pass_request_headers on;
+        proxy_set_header Host $host;
+        proxy_set_header X-Forwarded-Prefix '/opop-service';
+        proxy_pass http://opop-service:8080/;
+    }
+
+    location /document-service/ {
+        proxy_pass_request_headers on;
+        proxy_set_header Host $host;
+        proxy_set_header X-Forwarded-Prefix '/document-service';
+        proxy_pass http://document-service:8081/;
+
+    }
+}
+````
+
+### Ссылка на видео
+https://vk.com/video170089763_456239482?list=ln-0DBU1KuruzjrZvKRLE
+
+
diff --git a/tepechin_kirill_lab_3/docker-compose.yml b/tepechin_kirill_lab_3/docker-compose.yml
new file mode 100644
index 0000000..3cb4c91
--- /dev/null
+++ b/tepechin_kirill_lab_3/docker-compose.yml
@@ -0,0 +1,43 @@
+version: '3'
+services:
+  opop-service:
+    build:
+      context: /opop-service
+      dockerfile: Dockerfile
+      args:
+        JAR_FILE: build/libs/*.jar
+    ports:
+      - "8080:8080"
+    networks:
+      - my-network
+    environment:
+      server.forward-headers-strategy: framework
+
+  document-service:
+    build:
+      context: /document-service
+      dockerfile: Dockerfile
+      args:
+        JAR_FILE: build/libs/*.jar
+    ports:
+      - "8081:8081"
+    networks:
+      - my-network
+    environment:
+      server.forward-headers-strategy: framework
+
+  nginx:
+    image: nginx
+    ports:
+      - "80:80"
+    networks:
+      - my-network
+    volumes:
+      - ./nginx-conf:/etc/nginx/conf.d
+    depends_on:
+      - opop-service
+      - document-service
+
+networks:
+  my-network:
+    driver: bridge
\ No newline at end of file
diff --git a/tepechin_kirill_lab_3/document-service/Dockerfile b/tepechin_kirill_lab_3/document-service/Dockerfile
new file mode 100644
index 0000000..66c9734
--- /dev/null
+++ b/tepechin_kirill_lab_3/document-service/Dockerfile
@@ -0,0 +1,5 @@
+FROM eclipse-temurin:17-jdk-alpine
+VOLUME /tmp
+ARG JAR_FILE
+COPY ${JAR_FILE} app.jar
+ENTRYPOINT ["java","-jar","/app.jar"]
\ No newline at end of file
diff --git a/tepechin_kirill_lab_3/document-service/build.gradle b/tepechin_kirill_lab_3/document-service/build.gradle
new file mode 100644
index 0000000..04c2f61
--- /dev/null
+++ b/tepechin_kirill_lab_3/document-service/build.gradle
@@ -0,0 +1,35 @@
+plugins {
+    id 'java'
+    id 'org.springframework.boot' version '3.0.0'
+    id 'io.spring.dependency-management' version '1.1.0'
+}
+
+group = 'org.example'
+version = '1.0-SNAPSHOT'
+
+configurations {
+    compileOnly {
+        extendsFrom annotationProcessor
+    }
+}
+
+repositories {
+    mavenCentral()
+}
+
+dependencies {
+    implementation 'org.springframework.boot:spring-boot-starter-web'
+//    implementation 'org.mapstruct:mapstruct:1.5.3.Final'
+    implementation 'org.springdoc:springdoc-openapi-starter-webmvc-ui:2.0.3'
+    compileOnly 'org.projectlombok:lombok'
+    annotationProcessor 'org.projectlombok:lombok'
+    annotationProcessor 'org.mapstruct:mapstruct-processor:1.5.3.Final'
+
+
+    testImplementation platform('org.junit:junit-bom:5.9.1')
+    testImplementation 'org.junit.jupiter:junit-jupiter'
+}
+
+test {
+    useJUnitPlatform()
+}
\ No newline at end of file
diff --git a/tepechin_kirill_lab_3/document-service/src/main/java/org/example/Document.java b/tepechin_kirill_lab_3/document-service/src/main/java/org/example/Document.java
new file mode 100644
index 0000000..9fa65c7
--- /dev/null
+++ b/tepechin_kirill_lab_3/document-service/src/main/java/org/example/Document.java
@@ -0,0 +1,17 @@
+package org.example;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.fasterxml.jackson.annotation.JsonView;
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+@Data
+@NoArgsConstructor
+@AllArgsConstructor
+public class Document {
+    @JsonView(Views.Private.class)
+    private long id;
+    @JsonView(Views.Public.class)
+    private String text;
+}
diff --git a/tepechin_kirill_lab_3/document-service/src/main/java/org/example/DocumentApplication.java b/tepechin_kirill_lab_3/document-service/src/main/java/org/example/DocumentApplication.java
new file mode 100644
index 0000000..9643d4a
--- /dev/null
+++ b/tepechin_kirill_lab_3/document-service/src/main/java/org/example/DocumentApplication.java
@@ -0,0 +1,11 @@
+package org.example;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class DocumentApplication {
+    public static void main(String[] args) {
+        SpringApplication.run(DocumentApplication.class, args);
+    }
+}
\ No newline at end of file
diff --git a/tepechin_kirill_lab_3/document-service/src/main/java/org/example/Views.java b/tepechin_kirill_lab_3/document-service/src/main/java/org/example/Views.java
new file mode 100644
index 0000000..1fd9488
--- /dev/null
+++ b/tepechin_kirill_lab_3/document-service/src/main/java/org/example/Views.java
@@ -0,0 +1,6 @@
+package org.example;
+
+public class Views {
+    public interface Public {}
+    public interface Private extends Public {}
+}
\ No newline at end of file
diff --git a/tepechin_kirill_lab_3/document-service/src/main/resources/application.yml b/tepechin_kirill_lab_3/document-service/src/main/resources/application.yml
new file mode 100644
index 0000000..b12d076
--- /dev/null
+++ b/tepechin_kirill_lab_3/document-service/src/main/resources/application.yml
@@ -0,0 +1,3 @@
+server:
+  port: 8081
+  forward-headers-strategy=framework:
\ No newline at end of file
diff --git a/tepechin_kirill_lab_3/nginx-conf/nginx.conf b/tepechin_kirill_lab_3/nginx-conf/nginx.conf
new file mode 100644
index 0000000..75964c1
--- /dev/null
+++ b/tepechin_kirill_lab_3/nginx-conf/nginx.conf
@@ -0,0 +1,18 @@
+server {
+    listen 80;
+
+    location /opop-service/ {
+        proxy_pass_request_headers on;
+        proxy_set_header Host $host;
+        proxy_set_header X-Forwarded-Prefix '/opop-service';
+        proxy_pass http://opop-service:8080/;
+    }
+
+    location /document-service/ {
+        proxy_pass_request_headers on;
+        proxy_set_header Host $host;
+        proxy_set_header X-Forwarded-Prefix '/document-service';
+        proxy_pass http://document-service:8081/;
+
+    }
+}
\ No newline at end of file
diff --git a/tepechin_kirill_lab_3/opop-service/Dockerfile b/tepechin_kirill_lab_3/opop-service/Dockerfile
new file mode 100644
index 0000000..8e8de35
--- /dev/null
+++ b/tepechin_kirill_lab_3/opop-service/Dockerfile
@@ -0,0 +1,5 @@
+FROM eclipse-temurin:17-jdk-alpine
+VOLUME /tmp
+ARG JAR_FILE
+COPY ${JAR_FILE} app.jar
+ENTRYPOINT ["java","-jar","/app.jar"]
diff --git a/tepechin_kirill_lab_3/opop-service/build.gradle b/tepechin_kirill_lab_3/opop-service/build.gradle
new file mode 100644
index 0000000..59e5a6c
--- /dev/null
+++ b/tepechin_kirill_lab_3/opop-service/build.gradle
@@ -0,0 +1,35 @@
+plugins {
+    id 'java'
+    id 'org.springframework.boot' version '3.0.0'
+    id 'io.spring.dependency-management' version '1.1.0'
+}
+
+group = 'org.example'
+version = '1.0-SNAPSHOT'
+
+configurations {
+    compileOnly {
+        extendsFrom annotationProcessor
+    }
+}
+
+repositories {
+    mavenCentral()
+}
+
+dependencies {
+    implementation 'org.springframework.boot:spring-boot-starter-web'
+    implementation 'org.mapstruct:mapstruct:1.5.3.Final'
+    implementation 'org.springdoc:springdoc-openapi-starter-webmvc-ui:2.0.3'
+    compileOnly 'org.projectlombok:lombok'
+    annotationProcessor 'org.projectlombok:lombok'
+    annotationProcessor 'org.mapstruct:mapstruct-processor:1.5.3.Final'
+
+
+    testImplementation platform('org.junit:junit-bom:5.9.1')
+    testImplementation 'org.junit.jupiter:junit-jupiter'
+}
+
+test {
+    useJUnitPlatform()
+}
\ No newline at end of file
diff --git a/tepechin_kirill_lab_3/opop-service/src/main/java/org/example/Opop.java b/tepechin_kirill_lab_3/opop-service/src/main/java/org/example/Opop.java
new file mode 100644
index 0000000..bd97ad5
--- /dev/null
+++ b/tepechin_kirill_lab_3/opop-service/src/main/java/org/example/Opop.java
@@ -0,0 +1,17 @@
+package org.example;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+import org.example.dto.DocumentInfo;
+
+import java.util.List;
+@Data
+@NoArgsConstructor
+@AllArgsConstructor
+public class Opop {
+    private long id;
+    private String code;
+    private int studyDuration;
+    private DocumentInfo documentInfo;
+}
diff --git a/tepechin_kirill_lab_3/opop-service/src/main/java/org/example/OpopApplication.java b/tepechin_kirill_lab_3/opop-service/src/main/java/org/example/OpopApplication.java
new file mode 100644
index 0000000..01fae73
--- /dev/null
+++ b/tepechin_kirill_lab_3/opop-service/src/main/java/org/example/OpopApplication.java
@@ -0,0 +1,11 @@
+package org.example;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class OpopApplication {
+    public static void main(String[] args) {
+        SpringApplication.run(OpopApplication.class, args);
+    }
+}
\ No newline at end of file
diff --git a/tepechin_kirill_lab_3/opop-service/src/main/java/org/example/OpopController.java b/tepechin_kirill_lab_3/opop-service/src/main/java/org/example/OpopController.java
new file mode 100644
index 0000000..0e3c2a9
--- /dev/null
+++ b/tepechin_kirill_lab_3/opop-service/src/main/java/org/example/OpopController.java
@@ -0,0 +1,49 @@
+package org.example;
+
+import org.example.dto.OpopDtoCreate;
+import org.example.dto.OpopDtoDetails;
+import org.example.dto.OpopDtoList;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.http.HttpStatus;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.List;
+
+@RestController
+@RequestMapping("/opop")
+public class OpopController {
+
+    @Autowired
+    private OpopStorage opopStorage;
+
+    @GetMapping
+    public List<OpopDtoList> getAllOpops(){
+        return opopStorage.getAllOpops();
+    }
+    @GetMapping("/{id}")
+    public OpopDtoDetails getOpopDetails(@PathVariable long id){
+        return opopStorage.getOpopDetails(id);
+    }
+
+    @PostMapping
+    public OpopDtoDetails addOpop(@RequestBody OpopDtoCreate opopDtoCreate){
+        return opopStorage.addOpop(opopDtoCreate);
+    }
+
+    @PutMapping
+    public void editOpop(@RequestBody OpopDtoList opopDtoList){
+        opopStorage.editOpop(opopDtoList);
+    }
+
+    @DeleteMapping("/{id}")
+    public void deleteOpop(@PathVariable long id){
+        opopStorage.deleteOpop(id);
+    }
+
+    @ResponseStatus(HttpStatus.NOT_FOUND)
+    @ExceptionHandler(Exception.class)
+    public String handleNotFound(Exception e) {
+        return e.getMessage();
+    }
+
+}
diff --git a/tepechin_kirill_lab_3/opop-service/src/main/java/org/example/OpopMapper.java b/tepechin_kirill_lab_3/opop-service/src/main/java/org/example/OpopMapper.java
new file mode 100644
index 0000000..c8bbca7
--- /dev/null
+++ b/tepechin_kirill_lab_3/opop-service/src/main/java/org/example/OpopMapper.java
@@ -0,0 +1,17 @@
+package org.example;
+
+import org.example.dto.OpopDtoCreate;
+import org.example.dto.OpopDtoDetails;
+import org.example.dto.OpopDtoList;
+import org.mapstruct.Mapper;
+import org.mapstruct.Mapping;
+import org.mapstruct.ReportingPolicy;
+
+@Mapper(componentModel = "spring", unmappedTargetPolicy = ReportingPolicy.IGNORE)
+public interface OpopMapper {
+    @Mapping(target = "documentId", source = "documentInfo.id")
+    OpopDtoList toListDto(Opop opop);
+    OpopDtoDetails toDetailsDto(Opop opop);
+    @Mapping(source = "documentId", target = "documentInfo.id")
+    Opop fromCreateDto(OpopDtoCreate opopDtoCreate);
+}
diff --git a/tepechin_kirill_lab_3/opop-service/src/main/java/org/example/OpopStorage.java b/tepechin_kirill_lab_3/opop-service/src/main/java/org/example/OpopStorage.java
new file mode 100644
index 0000000..bbdbfe2
--- /dev/null
+++ b/tepechin_kirill_lab_3/opop-service/src/main/java/org/example/OpopStorage.java
@@ -0,0 +1,65 @@
+package org.example;
+
+import org.example.dto.DocumentInfo;
+import org.example.dto.OpopDtoCreate;
+import org.example.dto.OpopDtoDetails;
+import org.example.dto.OpopDtoList;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Component;
+import org.springframework.web.client.RestTemplate;
+
+import java.util.ArrayList;
+import java.util.List;
+
+@Component
+public class OpopStorage {
+    @Autowired
+    private OpopMapper opopMapper;
+    private long currentId = 1;
+    private final RestTemplate restTemplate = new RestTemplate();
+    private static final List<Opop> opopList = new ArrayList<>();
+    private final String URL = "http://document-service:8081/document/";
+
+    public List<OpopDtoList> getAllOpops(){
+        return opopList.stream().map(opop -> opopMapper.toListDto(opop)).toList();
+    }
+
+    public OpopDtoDetails getOpopDetails(long id){
+        return opopMapper.toDetailsDto(opopList.stream()
+                .filter(opop -> opop.getId() == id).toList().get(0));
+    }
+
+    public OpopDtoDetails addOpop(OpopDtoCreate opopDtoCreate){
+        long id = currentId++;
+        Opop opop = opopMapper.fromCreateDto(opopDtoCreate);
+        opop.setId(id);
+        opop.setDocumentInfo(restTemplate.getForObject(URL+ opopDtoCreate.getDocumentId(), DocumentInfo.class));
+
+        opopList.add(opop);
+        return opopMapper.toDetailsDto(opop);
+    }
+
+    public void deleteOpop(long id){
+        opopList.remove(opopList.stream().filter(opop -> opop.getId() == id).toList().get(0));
+    }
+
+    public void editOpop(OpopDtoList opopDto){
+        int index = findIndexById(opopDto.getId());
+        Opop opop = opopList.get(index);
+        opop.setCode(opopDto.getCode());
+        opop.setStudyDuration(opopDto.getStudyDuration());
+        opop.setDocumentInfo(restTemplate.getForObject(URL+ opopDto.getDocumentId(), DocumentInfo.class));
+
+        opopList.set(index, opop);
+    }
+
+    private int findIndexById(long idToFind) {
+        for (int i = 0; i < opopList.size(); i++) {
+            Opop obj = opopList.get(i);
+            if (obj.getId() == idToFind) {
+                return i;
+            }
+        }
+        return -1;
+    }
+}
diff --git a/tepechin_kirill_lab_3/opop-service/src/main/java/org/example/dto/OpopDtoCreate.java b/tepechin_kirill_lab_3/opop-service/src/main/java/org/example/dto/OpopDtoCreate.java
new file mode 100644
index 0000000..b598bf5
--- /dev/null
+++ b/tepechin_kirill_lab_3/opop-service/src/main/java/org/example/dto/OpopDtoCreate.java
@@ -0,0 +1,14 @@
+package org.example.dto;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+@Data
+@NoArgsConstructor
+@AllArgsConstructor
+public class OpopDtoCreate {
+    private String code;
+    private int studyDuration;
+    private int documentId;
+}
diff --git a/tepechin_kirill_lab_3/opop-service/src/main/java/org/example/dto/OpopDtoDetails.java b/tepechin_kirill_lab_3/opop-service/src/main/java/org/example/dto/OpopDtoDetails.java
new file mode 100644
index 0000000..ae5b342
--- /dev/null
+++ b/tepechin_kirill_lab_3/opop-service/src/main/java/org/example/dto/OpopDtoDetails.java
@@ -0,0 +1,15 @@
+package org.example.dto;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+@Data
+@NoArgsConstructor
+@AllArgsConstructor
+public class OpopDtoDetails {
+    private long id;
+    private String code;
+    private int studyDuration;
+    private DocumentInfo documentInfo;
+}
diff --git a/tepechin_kirill_lab_3/opop-service/src/main/java/org/example/dto/OpopDtoList.java b/tepechin_kirill_lab_3/opop-service/src/main/java/org/example/dto/OpopDtoList.java
new file mode 100644
index 0000000..ce1c69d
--- /dev/null
+++ b/tepechin_kirill_lab_3/opop-service/src/main/java/org/example/dto/OpopDtoList.java
@@ -0,0 +1,15 @@
+package org.example.dto;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+@Data
+@NoArgsConstructor
+@AllArgsConstructor
+public class OpopDtoList {
+    private long id;
+    private String code;
+    private int studyDuration;
+    private int documentId;
+}
diff --git a/tepechin_kirill_lab_3/opop-service/src/main/resources/application.yml b/tepechin_kirill_lab_3/opop-service/src/main/resources/application.yml
new file mode 100644
index 0000000..3d1ccb0
--- /dev/null
+++ b/tepechin_kirill_lab_3/opop-service/src/main/resources/application.yml
@@ -0,0 +1,2 @@
+server:
+  forward-headers-strategy=framework:
\ No newline at end of file