InterTicket junior Go developer test

Prerequisites

• https://github.com account
• go (1.16+)
• git client

Tasks

Create a REST endpoint which will save and lists out events. The exam has two parts: just listing out the existing events and the second part is to save the event via a rest call, and list out the saved events too. The application should produce application/json content type and should process the application/json body content with PUT method to validate and save the event payload.

the prepared go code available in main.go file. You should pass the tests defined in main_test.go file. The test can be runnable with go test ./ command

⚠️ Before you can start the task please create a fork from this repository open a feature branch and start your work there! When you finished with your work please open a pull request and I will check your code as soon as I can!

Task 1: The event list handler

Implement the GET handler which returns a list of event objects at /api/events

For a GET method you should list the stored events in JSON format. The data should be generated from code, (with go struct marshalled by json package) and should return the following: event-list.json obviously in the same format.

Task 2: Event creation

Implement a PUT handler where you can save the events: /api/events

This PUT handler is much more complex then the previous task, the endpoint wants a JSON request body like this:

{
    "name": "Manon Lescaut",
    "venue": {
        "name": "Erkel Színház",
        "location": "1087 Budapest, II. János Pál pápa tér 30."
    },
    "description": "Giacomo Puccini: Manon Lescaut Opera két részben, négy felvonásban, olasz nyelven, magyar és angol felirattal",
    "date": "2022-02-06T18:00:00Z"
}

The endpoint should validate the sent payload (JSON Request body) as follows:

• The name should be minimum 10 characters
• The description field should have at least 30 characters
• the venue name should not be blank/empty
• the venue location field should not be blank/empty
• the date must be in UTC format (ex.: 2022-01-28T11:41:57Z)

When error occurs the response status should be 400 (HTTP Bad Request) with an error message in the following structure:

{
    "message": "[error message]"
}

After the request was ok, you have to generate an unique id for the event and store the event somewhere (put it in a slice/array). The endpoint should return a 201 code (HTTP Created) and should return the saved event object in JSON with the generated ID field.

Bonus task (Optional)

Extend the application main function to use OS environment variable called: PORT to set the listening address of the HTTP server.

For example if you run the code with PORT=5000 go run main.go the server should listen on port 5000 for HTTP requests.

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If you have any questions about the tasks feel free to contact me: gyula.paal@interticket.hu

Good luck, and have a lot of fun!