Simple jaeger and golang example

This example contains two services (flights and passengers) with two different mysql instances (flights and passengers). Making any interactions with the API of any service will report it to jaeger.

Learn more about OpenTelemetry here

Setup

Use host port for curl requests from host machine

Name	Type	Host Port	Container port
jaeger	Jaeger:all-in-one	6831/udp, 14269, 16686	6831/udp, 14269, 16686
flight-db	MySQL	3306	3306
passenger-db	MySQL	3307	3306
flight-service	Go service	8080	8080
passenger-service	Go service	8090	8080

Running

Running this project requires docker and docker-compose version 1.29.2.

1. git clone https://github.com/Jepzter/jaeger-example.git
2. Optional Choose in docker-compose if you want passenger-service to be unstable and simulate errors. Set environment UNSTABLE=true. Default is false
3. Run docker-compose up in jaeger-example directory
4. Make a request defined in any of the apis below
5. Navigate to to jaeger ui
6. Select flight-service or passenger-service in the services dropdown menu
7. Click Find traces
8. Select a trace to view it's timeline

Flight service API

Get flight

GET http://localhost:8080/api/flight-service/flight-v1/1

Parameter	Type	Description
Flight ID	integer	Required. The ID of the flight. Example contains only ID 1 and 2

Response

{
    "FlightID": 1,
    "Name": "FLIGHT 33",
    "Destination": "VXO",
    "Passengers": [
        {
            "PassengerID": 1,
            "FlightID": 1,
            "Firstname": "Jesper",
            "Surname": "Placeholdersson"
        }
    ]
}

Passenger service API

Get passengers

GET http://localhost:8090/api/passenger-service/passenger-v1?flightId=1

Parameter	Type	Description
FlightId	integer	Optional. The ID of the flight. Example contains only ID 1 and 2

Response

[
    {
        "PassengerID": 1,
        "FlightID": 1,
        "Firstname": "Jesper",
        "Surname": "Placeholdersson"
    }
]