Distributed Tracing Golang Sample

This project demonstrates how to instrument distrubted tracing in golang application with the help of below microservices:

• order-service
• payment-service
• user-service

For this you would need the following:

• Go (version >= 1.16): For installation see getting started
• MySQL 8: Download the MySQL community version from here
• serve for the frontend. For installation see: https://www.npmjs.com/package/serve
• Signoz

Tracing flow

Running the code

Start the SigNoz server following the instructions:

git clone -b main https://github.com/SigNoz/signoz.git
cd signoz/deploy/
./install.sh

Using docker-compose

docker-compose up -d

View traces and metrics at http://localhost:3301/

Note: Replace OTEL_EXPORTER_OTLP_ENDPOINT environment variable with SigNoz OTLP endpoint, if SigNoz not running on host machine.

Using Source

Configuration for microservices can be updated in .env file

# service config
USER_URL=localhost:8080
PAYMENT_URL=localhost:8081
ORDER_URL=localhost:8082

# database config
SQL_USER=root
SQL_PASSWORD=password
SQL_HOST=localhost:3306
SQL_DB=signoz

# telemetry config
OTEL_EXPORTER_OTLP_ENDPOINT=localhost:4317
INSECURE_MODE=true

Start individual microservices using below commands

1. User Service

go run ./users

2. Payment Service

go run ./payment

3. Order Service

go run ./order

Start the frontend using following command. For installation of serve see: https://www.npmjs.com/package/serve

serve -l 5000 frontend/src

View traces and metrics at http://localhost:3301/