Shopping-Order Example

Backend

Business scenarios such as e-commerce transactions have high requirements for distributed transactions...

Introduction

A simple e-commerce transaction scenario, an example of a distributed transaction solution implemented based on Dubbo-Go and Seata-Golang AT transaction patterns. See Seata for details on other transaction modes offered by Seata.

Modules

.
├── go-client
│   ├── cmd
│   ├── conf
│   ├── pkg
│   └── profiles
│       └── dev
├── go-server-common
│   └── filter
├── go-server-order
│   ├── cmd
│   ├── conf
│   ├── docker
│   └── pkg
│       └── dao
└── go-server-product
    ├── cmd
    ├── conf
    ├── docker
    └── pkg
        └── dao

• go-client : The Service Consumer
• go-server-common : Public Module: Common components, Filter ...
• go-server-order : The Service Provider Of Order
• go-server-product : The Service Provider Of Product

Start

Refer to HOWTO.md under the root directory to run this sample.

• [ ] Go
• [ ] Zookeeper or Nacos ...
• [ ] Mysql
• [ ] Seata-go Server (Transaction Coordinator)

1. Environment Configuration

Configure the environment variable to specify the configuration file path required for the service to load

1.1 go-server-order

1.1.1 environment configuration

APP_LOG_CONF_FILE=shopping-order/go-server-order/conf/log.yml;
CONF_PROVIDER_FILE_PATH=shopping-order/go-server-order/conf/server.yml;
SEATA_CONF_FILE=shopping-order/go-server-order/conf/seata.yml

1.1.2 configuration file

modify server.yml

• modify registration centre

modify seata.yml

• modify AT model DNS of Seata

at:
  dsn: "username:password@tcp(mysql:3306)/seata_order?timeout=1s&readTimeout=1s&writeTimeout=1s&parseTime=true&loc=Local&charset=utf8mb4,utf8"
  report_retry_count: 5
  report_success_enable: false
  lock_retry_interval: 10ms
  lock_retry_times: 30

1.2 go-server-product:

1.2.1 environment configuration

APP_LOG_CONF_FILE=shopping-order/go-server-product/conf/log.yml;
CONF_PROVIDER_FILE_PATH=shopping-order/go-server-product/conf/server.yml;
SEATA_CONF_FILE=shopping-order/go-server-product/conf/seata.yml

1.2.2 configuration file

modify server.yml

• modify registration centre

modify seata.yml

• modify AT model DNS of Seata

at:
  dsn: "username:password@tcp(mysql:3306)/seata_product?timeout=1s&readTimeout=1s&writeTimeout=1s&parseTime=true&loc=Local&charset=utf8mb4,utf8"
  report_retry_count: 5
  report_success_enable: false
  lock_retry_interval: 10ms
  lock_retry_times: 30

1.3 go-client:

environment configuration:

APP_LOG_CONF_FILE=shopping-order/go-client/conf/log.yml;
CONF_CONSUMER_FILE_PATH=shopping-order/go-client/conf/client.yml;
SEATA_CONF_FILE=shopping-order/go-client/conf/seata.yml

2. Start The Registry

This example uses ZooKeeper as the registry, so you can run the Docker ZooKeeper environment directly. See docker-compose.yml

3. Start TC(Transaction Coordinator)

See： seata-golang ， seata

4. Start The Provider

• Order Service
• Product services

${project_dir}/.run/shopping-order

  .
├── go-client.run.xml
├── order-go-server.run.xml
└── product-go-server.run.xml

5. Start The Consumer

Refer to HOWTO.md under the root directory to run this sample.