Trip

A microservices based approach for a scalable architecture.(This project is a skeleton for experimental purpose.)

This is full stack solution using .Net Technologies.

A user can upload a photo, video the video and photos thumbnails would be generated and the user can later browser his photos and can share them with friends.

Design

One of the best approach to build software systems

Entities:

These are the enterprise business objects of your application. These should not be affected by any change external to them, and these should be the most stable code within your application.

Use Cases:

Implement and encapsulate all of the business rules.

Interface Adapters:

Convert and present data to the use case and entity layers.

Frameworks and Drivers:

Contain any frameworks or tools you need to run your application.

The key concepts here are:

Any layer can only reference a layer below it and know nothing about what’s going on above. The use cases and entities are the heart of your application and should have a minimal set of external library dependencies.

Events

The Vents are sgregated based on two types Domain Events and IntegrationEvents

Gateway

Soon...

Backend

The backend is built using .net5

We are trying to sperate individual domain in the complete work flow and we corrently have four major sevices

	HTTP	HTTPS
Identity Service	5000	5443
Profile Service	6000	6443
Creator Service	7000	7443
Feeder Service	8000	8443

Identity Service (Identity Server 4)

This service is built using Identity server 4 and have uses SQLite for the Database and is built using a code first approach.

WellKnown Endpoint Exposed by identity server : https://localhost:5443/.well-known/openid-configuration

{
  "issuer": "https://localhost:5443",
  "jwks_uri": "https://localhost:5443/.well-known/openid-configuration/jwks",
  "authorization_endpoint": "https://localhost:5443/connect/authorize",
  "token_endpoint": "https://localhost:5443/connect/token",
  "userinfo_endpoint": "https://localhost:5443/connect/userinfo",
  "end_session_endpoint": "https://localhost:5443/connect/endsession",
  "check_session_iframe": "https://localhost:5443/connect/checksession",
  "revocation_endpoint": "https://localhost:5443/connect/revocation",
  "introspection_endpoint": "https://localhost:5443/connect/introspect",
  "device_authorization_endpoint": "https://localhost:5443/connect/deviceauthorization",
  "frontchannel_logout_supported": true,
  "frontchannel_logout_session_supported": true,
  "backchannel_logout_supported": true,
  "backchannel_logout_session_supported": true,
  "scopes_supported": [
    "profile",
    "openid",
    "role",
    "tripfeed.write",
    "tripfeed.read",
    "offline_access"
  ],
  "claims_supported": [
    "gender",
    "website",
    "picture",
    "profile",
    "preferred_username",
    "nickname",
    "middle_name",
    "given_name",
    "family_name",
    "name",
    "birthdate",
    "zoneinfo",
    "locale",
    "updated_at",
    "sub",
    "role"
  ],
  "grant_types_supported": [
    "authorization_code",
    "client_credentials",
    "refresh_token",
    "implicit",
    "password",
    "urn:ietf:params:oauth:grant-type:device_code"
  ],
  "response_types_supported": [
    "code",
    "token",
    "id_token",
    "id_token token",
    "code id_token",
    "code token",
    "code id_token token"
  ],
  "response_modes_supported": [
    "form_post",
    "query",
    "fragment"
  ],
  "token_endpoint_auth_methods_supported": [
    "client_secret_basic",
    "client_secret_post"
  ],
  "id_token_signing_alg_values_supported": [
    "RS256"
  ],
  "subject_types_supported": [
    "public"
  ],
  "code_challenge_methods_supported": [
    "plain",
    "S256"
  ],
  "request_parameter_supported": true
}

Profile Service

This service is built using .net 5 and have uses SQLite for the Database and is built using a code first approach.

Creator Service

This service is built using .net 5 and have uses SQLite for the Database and is built using a code first approach.

Feeder Service

This service is built using .net 5 and have uses Mongo for the Database and is built using a code first approach.

Frontend

• Tripper.UI - 1000 , 1443 - (Experimental) Build on Balzor WebAssembly. Login using oauth2 from identity server 4 using only client id(client secrets cant be manged client side). The App will proive an inter face to upload his creation (images/videos) and he will be able to see it in his post which his friends will also be able to see.

• idolmaker - Angular template for ui. Soon...

• **Identity Admin Panel ** - 5000 , 5443 -Available on the indentity server currently and can be used to add user/roles/clients - few feature still in progress

Key Features

• The services use a Clean Architecture approach using CQRS
• We have used Serrilog for Logging and can be visible in Serrilog Dashboad.
• The Identity Service has an in build simple Admin Panel to view and edit roles/users.
• The Service exposes an health check endpoint with system resources info.
• The Service also expose metrics for Promethues and can be Integrated With Grafana.
• The service communicates to each other for eventual consitency via MSMQ -> RabbitMQ
• The service communicate also via GRPC for syncronus calls.

Initial Setup

Services

Identity Service

Create Migrations

• Add Migrations

dotnet ef migrations add InitialCreate -c PersistedGrantDbContext
dotnet ef migrations add InitialCreate -c ConfigurationDbContext
dotnet ef migrations add InitialCreate -c ApplicationDbContext

• Update Database

dotnet ef database update -c  PersistedGrantDbContext
dotnet ef database update -c  ConfigurationDbContext
dotnet ef database update -c  ApplicationDbContext

dotnet run /seed

Profile Service

• Add Migrations

dotnet ef migrations add InitialCreate -c ProfileWriterDbContext
dotnet ef migrations add InitialCreate -c ProfileReaderDbContext

• Update Database

dotnet ef database update -c ProfileReaderDbContext

Creator Service

• Add Migrations

dotnet ef migrations add InitialCreate -c CreatorWriterDbContext
dotnet ef migrations add InitialCreate -c CreatorReaderDbContext

• Update Database

dotnet ef database update -c CreatorReaderDbContext

Feeds Service

This service is using mongodb and dont require Migrations.27017

Identity Auth Flow

Docker File Settings

docker build -t trip-Identity -f Trip.Identity.Dockerfile .   

docker build -t trip-Creator -f Trip.Creator.Dockerfile .   

docker build -t trip-Profile -f Trip.Profile.Dockerfile .   

docker build -t trip-Feeds -f Trip.Feeds.Dockerfile .   

Extras :

docker network connect DockerNetwork rabbitmq

Docker Compose Settings

docker-compose up 

docker-compose up feeds-api


docker exec -ti feeds ifconfig

Docker NEtwork

docker network create DockerNetwork
docker network connect DockerNetwork rabbitmq

sequenceDiagram
TripperUI ->> Identity Service: .well-know endpoint 
Identity Service -->>TripperUI: Auth code Flow
TripperUI ->> Identity Service: Redirects  
Identity Service ->>TripperUI: User Login Success
TripperUI ->> Profile Service: Get Profile details
TripperUI ->> Creator Service: Add Creation
TripperUI ->> Feed Service: Get Memories 

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