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# Windows Installer files
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# Windows shortcuts
*.lnk

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# Отчёт по лабораторной работе №3
Выполнила: студентка группы ИСЭбд-41 Горбылева Антонина Игоревна
Используемые сущности: Автомобили - Car, марка автомобиля - Marka, модель - model, номер - number
## REST API, Gateway и синхронный обмен между микросервисами
## Создание микросервисов
Команда `dotnet new web -n worker-1` создает в терминале микросервис worker-1.
Команда `dotnet new sln`для создания решения для проекта.
Команда `dotnet sln worker-1.sln add worker-1.csproj`связывает созданное решение с проектом.
Аналогично, создаем второй микросервис и добавляем оба проекта в единое решение.
Команда `dotnet run` для запуска проекта.
Скриншоты API приложений:
![](picture/sworker-1.png)
![](picture/sworker-2.png)
## Реализация синхронного обмена
Реализован механизм синхронного обмена сообщениями между микросервисами.
```cs
app.MapGet("/Company/", async () =>
{
var httpClient = new HttpClient();
var secondWorkerResponse = await httpClient.GetStringAsync("http://worker-1:8080/");
return secondWorkerResponse.ToArray();
})
.WithName("GetRequests")
.WithOpenApi();
```
## Реализация gateway при помощи nginx
Шлюз на основе прозрачного прокси-сервера nginx
```conf
server {
listen 8080;
listen [::]:8080;
server_name localhost;
location / {
root /usr/share/nginx/html;
index index.html index.htm;
}
location /worker-1/ {
proxy_pass http://worker-1:8080/;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-Proto $scheme;
proxy_set_header X-Forwarded-Prefix /worker-1;
}
location /worker-2/ {
proxy_pass http://worker-2:8080/;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-Proto $scheme;
proxy_set_header X-Forwarded-Prefix /worker-2;
}
}
```
Результаты, после вызова команды `docker-compose up`:
Docker Desktop:
![](picture/docker.png)
index.html на gateway-1:
![](picture/test.png)
worker-1:
![](picture/lworker-1.png)
worker-2:
![](picture/lworker-2.png)

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version: "3.1"
services:
worker-1:
build: ./worker-1
worker-2:
build: ./worker-2
depends_on:
- worker-1
gateway:
image: nginx:latest
ports:
- 8080:8080
volumes:
- ./static:/usr/share/nginx/html:ro
- ./nginx.conf:/etc/nginx/conf.d/default.conf:ro

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Microsoft Visual Studio Solution File, Format Version 12.00
# Visual Studio Version 17
VisualStudioVersion = 17.0.31903.59
MinimumVisualStudioVersion = 10.0.40219.1
Global
GlobalSection(SolutionConfigurationPlatforms) = preSolution
Debug|Any CPU = Debug|Any CPU
Release|Any CPU = Release|Any CPU
EndGlobalSection
GlobalSection(SolutionProperties) = preSolution
HideSolutionNode = FALSE
EndGlobalSection
EndGlobal

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server {
listen 8080;
listen [::]:8080;
server_name localhost;
location / {
root /usr/share/nginx/html;
index index.html index.htm;
}
location /worker-1/ {
proxy_pass http://worker-1:8080/;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-Proto $scheme;
proxy_set_header X-Forwarded-Prefix /worker-1;
}
location /worker-2/ {
proxy_pass http://worker-2:8080/;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-Proto $scheme;
proxy_set_header X-Forwarded-Prefix /worker-2;
}
}

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<!DOCTYPE html>
<html lang="ru">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Лабараторная работа №3</title>
</head>
<body>
<p>Горбылева Антонина студентка ИСЭбд-41</p>
<p><a href="/worker-1/">Запрос к "worker-1"</a></p>
<p><a href="/worker-2/">Запрос к "worker-2"</a></p>
</body>
</html>

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FROM mcr.microsoft.com/dotnet/sdk:8.0 AS build-env
WORKDIR /app
COPY . ./
RUN dotnet restore
RUN dotnet publish -c Release -o out
FROM mcr.microsoft.com/dotnet/aspnet:8.0
WORKDIR /app
COPY --from=build-env /app/out .
ENTRYPOINT ["dotnet", "worker-1.dll"]

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List<Cars > Cars = new()
{
new Cars () { Uuid= Guid.Parse("6a1b4a72-5669-41fe-8d5b-106dc86f58bd"), Model = "Programming Basics", GosNumber = "Programming" },
new Cars () { Uuid= Guid.Parse("464bbdb8-39c0-4644-b9c0-3df1c484ea7e"), Model = "Advanced Algorithms", GosNumber = "Programming" },
new Cars () { Uuid= Guid.Parse("f8692bea-b7e6-4164-b564-a921f16c35c9"), Model = "Romantic Journey", GosNumber = "Romance" },
};
var builder = WebApplication.CreateBuilder(args);
builder.Services.AddEndpointsApiExplorer();
builder.Services.AddSwaggerGen();
var app = builder.Build();
if (app.Environment.IsDevelopment())
{
app.UseSwagger();
app.UseSwaggerUI();
}
app.UseHttpsRedirection();
app.MapGet("/", () =>
{
return Cars.Select(r => new CarEntityDto()
{
Uuid = r.Uuid,
Model = r.Model,
GosNumber = r.GosNumber,
});
})
.WithMarka("GetCars")
.WithOpenApi();
app.MapGet("/{uuid}", (Guid uuid) =>
{
var Car = Cars.FirstOrDefault(r => r.Uuid == uuid);
if (Car == null)
return Results.NotFound();
return Results.Json(new CarEntityDto()
{
Uuid = Car.Uuid,
Model = Car.Model,
GosNumber = Car.GosNumber,
});
})
.WithMarka("GetCarByGUID")
.WithOpenApi();
app.MapPost("/{Model}/{GosNumber}", (string Model, string GosNumber) =>
{
Guid NewGuid = Guid.NewGuid();
Cars.Add(new Cars() { Uuid = NewGuid, Model = (string)Model, GosNumber = (string)GosNumber});
var Car = Cars.FirstOrDefault(r => r.Uuid == NewGuid);
if (Car == null)
return Results.NotFound();
return Results.Json(new CarEntityDto()
{
Uuid = Car.Uuid,
Model = Car.Model,
GosNumber = Car.GosNumber,
});
})
.WithMarka("PostCar")
.WithOpenApi();
app.MapPatch("/{uuid}/{Model}/{GosNumber}", (Guid uuid, string ?Model, string ?GosNumber) =>
{
var Car = Cars.FirstOrDefault(r => r.Uuid == uuid);
if (Car == null)
return Results.NotFound();
if (Model != null) Car.Model = Model;
if (GosNumber != ",") Car.GosNumber = GosNumber;
return Results.Json(new CarEntityDto()
{
Uuid = Car.Uuid,
Model = Car.Model,
GosNumber = Car.GosNumber,
});
})
.WithMarka("UpdateCar")
.WithOpenApi();
app.MapDelete("/{uuid}", (Guid uuid) =>
{
var Car = Cars.FirstOrDefault(r => r.Uuid == uuid);
if (Car == null)
return Results.NotFound();
Cars.Remove(Car);
return Results.Json(new CarEntityDto()
{
Uuid = Car.Uuid,
Model = Car.Model,
GosNumber = Car.GosNumber,
});
})
.WithMarka("DeleteCarByGUID")
.WithOpenApi();
app.Run();
public class Cars
{
public Guid Uuid { get; set; }
public string Model { get; set; } = string.Empty;
public string GosNumber { get; set; } = string.Empty;
}
public class CarEntityDto : Cars { }

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{
"iisSettings": {
"windowsAuthentication": false,
"anonymousAuthentication": true,
"iisExpress": {
"applicationUrl": "http://localhost:28800",
"sslPort": 44397
}
},
"profiles": {
"http": {
"commandName": "Project",
"dotnetRunMessages": true,
"launchBrowser": true,
"applicationUrl": "http://localhost:5108",
"environmentVariables": {
"ASPNETCORE_ENVIRONMENT": "Development"
}
},
"https": {
"commandName": "Project",
"dotnetRunMessages": true,
"launchBrowser": true,
"applicationUrl": "https://localhost:7126;http://localhost:5108",
"environmentVariables": {
"ASPNETCORE_ENVIRONMENT": "Development"
}
},
"IIS Express": {
"commandName": "IISExpress",
"launchBrowser": true,
"environmentVariables": {
"ASPNETCORE_ENVIRONMENT": "Development"
}
}
}
}

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{
"Logging": {
"LogLevel": {
"Default": "Information",
"Microsoft.AspNetCore": "Warning"
}
}
}

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@ -0,0 +1,9 @@
{
"Logging": {
"LogLevel": {
"Default": "Information",
"Microsoft.AspNetCore": "Warning"
}
},
"AllowedHosts": "*"
}

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<Project Sdk="Microsoft.NET.Sdk.Web">
<PropertyGroup>
<TargetFramework>net7.0</TargetFramework>
<Nullable>enable</Nullable>
<ImplicitUsings>enable</ImplicitUsings>
<RootNamespace>worker_1</RootNamespace>
</PropertyGroup>
</Project>

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@ -0,0 +1,22 @@

Microsoft Visual Studio Solution File, Format Version 12.00
# Visual Studio Version 17
VisualStudioVersion = 17.0.31903.59
MinimumVisualStudioVersion = 10.0.40219.1
Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "worker-1", "worker-1.csproj", "{AEF383BD-8E80-4FF5-A579-1B601B7D1464}"
EndProject
Global
GlobalSection(SolutionConfigurationPlatforms) = preSolution
Debug|Any CPU = Debug|Any CPU
Release|Any CPU = Release|Any CPU
EndGlobalSection
GlobalSection(SolutionProperties) = preSolution
HideSolutionNode = FALSE
EndGlobalSection
GlobalSection(ProjectConfigurationPlatforms) = postSolution
{AEF383BD-8E80-4FF5-A579-1B601B7D1464}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
{AEF383BD-8E80-4FF5-A579-1B601B7D1464}.Debug|Any CPU.Build.0 = Debug|Any CPU
{AEF383BD-8E80-4FF5-A579-1B601B7D1464}.Release|Any CPU.ActiveCfg = Release|Any CPU
{AEF383BD-8E80-4FF5-A579-1B601B7D1464}.Release|Any CPU.Build.0 = Release|Any CPU
EndGlobalSection
EndGlobal

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FROM mcr.microsoft.com/dotnet/sdk:8.0 AS build-env
WORKDIR /app
COPY . ./
RUN dotnet restore
RUN dotnet publish -c Release -o out
FROM mcr.microsoft.com/dotnet/aspnet:8.0
WORKDIR /app
COPY --from=build-env /app/out .
ENTRYPOINT ["dotnet", "worker-2.dll"]

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List<Authors> authors = new()
{
new Authors() { Uuid= Guid.NewGuid(), Number = "1", Name = "Programming Basics", IdBook = Guid.Parse("6a1b4a72-5669-41fe-8d5b-106dc86f58bd") },
new Authors() { Uuid= Guid.NewGuid(), Number = "2", Name = "Advanced Algorithms", IdBook = Guid.Parse("f8692bea-b7e6-4164-b564-a921f16c35c9") },
new Authors() { Uuid= Guid.NewGuid(), Number = "3", Name = "Romantic Journey", IdBook = Guid.Parse("464bbdb8-39c0-4644-b9c0-3df1c484ea7e") },
new Authors() { Uuid= Guid.NewGuid(), Number = "3А", Name = "Mystery Island", IdBook = Guid.Parse("464bbdb8-39c0-4644-b9c0-3df1c484ea7e") },
};
var builder = WebApplication.CreateBuilder(args);
builder.Services.AddEndpointsApiExplorer();
builder.Services.AddSwaggerGen();
var app = builder.Build();
if (app.Environment.IsDevelopment())
{
app.UseSwagger();
app.UseSwaggerUI();
}
app.UseHttpsRedirection();
app.MapGet("/", () =>
{
return authors.Select(r => new AuthorEntityDto()
{
Uuid = r.Uuid,
Number = r.Number,
Name = r.Name,
IdBook = r.IdBook,
});
})
.WithName("GetAuthors")
.WithOpenApi();
app.MapGet("/{uuid}", (Guid uuid) =>
{
var author = authors.FirstOrDefault(r => r.Uuid == uuid);
if (author == null)
return Results.NotFound();
return Results.Json(new AuthorEntityDto()
{
Uuid = author.Uuid,
Number = author.Number,
Name = author.Name,
IdBook = author.IdBook,
});
})
.WithName("GetAuthorByGUID")
.WithOpenApi();
app.MapPost("/{number}/{name}/{IdBook}", (string? Number, string Name, Guid IdBook) =>
{
Guid NewGuid = Guid.NewGuid();
authors.Add(new Authors() { Uuid = NewGuid, Number = (string)Number, Name = (string)Name, IdBook = (Guid)IdBook });
var author = authors.FirstOrDefault(r => r.Uuid == NewGuid);
if (author == null)
return Results.NotFound();
return Results.Json(new AuthorEntityDto()
{
Uuid = author.Uuid,
Number = author.Number,
Name = author.Name,
IdBook = author.IdBook,
});
})
.WithName("PostAuthor")
.WithOpenApi();
app.MapPatch("/{uuid}/{number}/{name}/{IdBook}", (Guid uuid, string ?number, string name, Guid IdBook) =>
{
var author = authors.FirstOrDefault(r => r.Uuid == uuid);
if (author == null)
return Results.NotFound();
if (number != ",") author.Number = number;
if (name != author.Name) author.Name = name;
if (IdBook != author.IdBook) author.IdBook = IdBook;
return Results.Json(new AuthorEntityDto()
{
Uuid = author.Uuid,
Number = author.Number,
Name = author.Name,
IdBook = author.IdBook,
});
})
.WithName("UpdateAuthor")
.WithOpenApi();
app.MapDelete("/{uuid}", (Guid uuid) =>
{
var author = authors.FirstOrDefault(r => r.Uuid == uuid);
if (author == null)
return Results.NotFound();
authors.Remove(author);
return Results.Json(new AuthorEntityDto()
{
Uuid = author.Uuid,
Number = author.Number,
Name = author.Name,
IdBook = author.IdBook,
});
})
.WithName("DeleteAuthor")
.WithOpenApi();
app.MapGet("/Authors/", async () =>
{
var httpClient = new HttpClient();
var secondWorkerResponse = await httpClient.GetStringAsync("http://worker-1:8080/");
return secondWorkerResponse.ToArray();
})
.WithName("GetBooks")
.WithOpenApi();
app.Run();
public class Authors
{
public Guid Uuid { get; set; }
public string Number { get; set; } = string.Empty;
public string Name { get; set; } = string.Empty;
public Guid IdBook { get; set; }
}
public class AuthorEntityDto : Authors { }
public class Books
{
public Guid Uuid { get; set; }
public string Title { get; set; } = string.Empty;
public string Genre { get; set; } = string.Empty;
}
public class BookEntityDto : Books { }

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{
"iisSettings": {
"windowsAuthentication": false,
"anonymousAuthentication": true,
"iisExpress": {
"applicationUrl": "http://localhost:24157",
"sslPort": 44320
}
},
"profiles": {
"http": {
"commandName": "Project",
"dotnetRunMessages": true,
"launchBrowser": true,
"applicationUrl": "http://localhost:5082",
"environmentVariables": {
"ASPNETCORE_ENVIRONMENT": "Development"
}
},
"https": {
"commandName": "Project",
"dotnetRunMessages": true,
"launchBrowser": true,
"applicationUrl": "https://localhost:7130;http://localhost:5082",
"environmentVariables": {
"ASPNETCORE_ENVIRONMENT": "Development"
}
},
"IIS Express": {
"commandName": "IISExpress",
"launchBrowser": true,
"environmentVariables": {
"ASPNETCORE_ENVIRONMENT": "Development"
}
}
}
}

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# Отчёт по лабораторной работе №3
Выполнила: студентка гр. ИСЭбд-41 Никифорова Татьяна Сергеевна.
## REST API, Gateway и синхронный обмен между микросервисами
## Создание микросервисов
Использовала команду `dotnet new web -n worker-1` в терминале для создания моего первого микросервиса.
Далее, с помощью команды `dotnet new sln`, создала решение для проекта. Затем использовала команду `dotnet sln worker-1.sln add worker-1.csproj`, чтобы связать созданное решение с проектом.
Повторила те же действия для второго микросервиса, добавила оба проекта в единое решение.
Добавил библиотеку Swagger и OpenAi в проекты и запустил с помощью команды `dotnet run`".
Скриншоты API приложений:
![](picture/sworker-1.png)
![](picture/sworker-2.png)
## Реализация синхронного обмена
Реализовала механизм синхронного обмена сообщениями между микросервисами.
```cs
app.MapGet("/Authors/", async () =>
{
var httpClient = new HttpClient();
var secondWorkerResponse = await httpClient.GetStringAsync("http://worker-1:8080/");
return secondWorkerResponse.ToArray();
})
.WithName("GetRequests")
.WithOpenApi();
```
## Реализация gateway при помощи nginx
Реализовала шлюз на основе прозрачного прокси-сервера nginx.
```conf
server {
listen 8080;
listen [::]:8080;
server_name localhost;
location / {
root /usr/share/nginx/html;
index index.html index.htm;
}
location /worker-1/ {
proxy_pass http://worker-1:8080/;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-Proto $scheme;
proxy_set_header X-Forwarded-Prefix /worker-1;
}
location /worker-2/ {
proxy_pass http://worker-2:8080/;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-Proto $scheme;
proxy_set_header X-Forwarded-Prefix /worker-2;
}
}
```
Результаты, после вызова команды `docker-compose up`:
Docker Desktop:
![](picture/docker.png)
index.html на gateway-1:
![](picture/test.png)
worker-1:
![](picture/lworker-1.png)
worker-2:
![](picture/lworker-2.png)

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{
"Logging": {
"LogLevel": {
"Default": "Information",
"Microsoft.AspNetCore": "Warning"
}
}
}

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@ -0,0 +1,9 @@
{
"Logging": {
"LogLevel": {
"Default": "Information",
"Microsoft.AspNetCore": "Warning"
}
},
"AllowedHosts": "*"
}

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<Project Sdk="Microsoft.NET.Sdk.Web">
<PropertyGroup>
<TargetFramework>net7.0</TargetFramework>
<Nullable>enable</Nullable>
<ImplicitUsings>enable</ImplicitUsings>
<RootNamespace>worker_2</RootNamespace>
</PropertyGroup>
</Project>

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@ -0,0 +1,22 @@

Microsoft Visual Studio Solution File, Format Version 12.00
# Visual Studio Version 17
VisualStudioVersion = 17.0.31903.59
MinimumVisualStudioVersion = 10.0.40219.1
Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "worker-2", "worker-2.csproj", "{46EE043B-ED4D-44D1-82AF-3A180AD32532}"
EndProject
Global
GlobalSection(SolutionConfigurationPlatforms) = preSolution
Debug|Any CPU = Debug|Any CPU
Release|Any CPU = Release|Any CPU
EndGlobalSection
GlobalSection(SolutionProperties) = preSolution
HideSolutionNode = FALSE
EndGlobalSection
GlobalSection(ProjectConfigurationPlatforms) = postSolution
{46EE043B-ED4D-44D1-82AF-3A180AD32532}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
{46EE043B-ED4D-44D1-82AF-3A180AD32532}.Debug|Any CPU.Build.0 = Debug|Any CPU
{46EE043B-ED4D-44D1-82AF-3A180AD32532}.Release|Any CPU.ActiveCfg = Release|Any CPU
{46EE043B-ED4D-44D1-82AF-3A180AD32532}.Release|Any CPU.Build.0 = Release|Any CPU
EndGlobalSection
EndGlobal