This is a basic social network demo by Golang.

1. Technologies

1. grpc - "google.golang.org/grpc"
2. goqu - "github.com/doug-martin/goqu/v9"
3. gorm - "gorm.io/gorm" (post-service only)
4. kafka - "github.com/IBM/sarama"
5. redis - "github.com/go-redis/redis/v8"
6. websocket - "github.com/gorilla/websocket"
7. Elastic search - "github.com/elastic/go-elasticsearch/v8"
8. prometheus - "github.com/prometheus/client_golang/prometheus"
9. grafana for monitoring
10. email - "github.com/jordan-wright/email"
11. sms - "github.com/twilio/twilio-go"
12. template - "html/template" for notification form
13. DSA: Trie - for violent comment rule checking (post-service)
13.1. DSA: Trie - for address auto suggestion (in user-service)
14. Nginx: for load balancing
15. Post validator - "github.com/go-playground/validator/v10"
16. Regex - "regexp"

2. How to start

Run by Docker

1. run `docker compose up`
2. Check status of services
3. Access prometheus: [http://localhost:9090/targets](http://localhost:9090/targets) to check is your service up successfully
4. Access grafana: [http://localhost:3000/login](http://localhost:3000/login) (user: admin - password: admin)
5. Access `localhost:3001` for web
6. Access `localhost:3001/comment_rule.html` for comment-rule

Run on Local

1. go to "cd deployments" and run "docker-compose up"
2. run http-gateway "cd http_gateway/" and "go run cmd/main.go"
3. run user-service "cd user-service/" and "go run cmd/main.go"
4. run post-service "cd post-service/" and "go run cmd/main.go"
5. run newsfeed-service "cd newsfeed-service/" and "go run cmd/main.go"
6. run message-service "cd message-service/" and "go run cmd/main.go"
7. run FE "cd web/" and "start index.html"

3. Information

User

namnv - namnv
knm - knm
baobq - baobq

Follower

Data migration

sql files location:

user-service\internal\database\migrations\mysql

Install wire to generate dependency injection

go install github.com/google/wire/cmd/wire@latest

4. Features

- Login / Register
- Newsfeed
- View and add new comment on post with comment rule
- View followers post
- Follow / Unfollow
- View your wall and your friends post
- Search another people
- Chat with friends
- Email / SMS OTP
- Notification

4.1 Login / Register

• Login

• Register

• OTP

4.2 Newsfeed

4.3 View and add new comment on post with comment rule

• View comment on post

• Comment violent rule checking

4.4 View followers post

if namnv posted a post. knm and baobq will see it in their newsfeed.

if knm posted a post. Only namnv will see it in his newsfeed baobq will not. Because only namnv follow knm if baobq posted a post. Only namnv will see it in his newsfeed knm will not. Because only namnv follow baobq

4.5 Follow / Unfollow

4.6 View your wall and your friends post

• View your wall

• View your friends post

4,.7 Search another people

• Search by name

• Act when search

4.8 Chat with friends

• Chat room list

• Chat with friend

4.8 Email / SMS OTP

4.9 Notification

4.10 Location searching

Support search by ward and district (will support city in the future)

Monitoring

prometheus read this link

Grafana custom

after login, you can setup dashboard for monitoring

access to download dashboard template

https://grafana.com/grafana/dashboards/1860-node-exporter-full/

import template by id or json

What's next?

• add CDC for new post
• map reducing for postdata