Add get tasks API

[samarpan1738]

Date: 7 Dec 2024

Developer Name: Samarpan Harit

---

Issue Ticket Number

• Closes Create an API to get all the todos #5

Description

1. Added get tasks API (/v1/tasks)
2. Added pagination (/v1/tasks?page=2&limit=20)
3. Add query param validator (serializer)
4. Added model, repository and DTOs for task and label
5. Added unit tests

Success Response

URL - GET http://127.0.0.1:8000/v1/tasks?page=1&limit=1

Response Code: 200

{
    "links": {
        "next": "/v1/tasks?page=2&limit=1"
    },
    "tasks": [
        {
            "id": "672f7c5b775ee9f4471ff1dd",
            "displayId": "#1",
            "title": "created rest api",
            "priority": "HIGH",
            "status": "TODO",
            "assignee": {
                "id": "qMbT6M2GB65W7UHgJS4g",
                "name": "SYSTEM"
            },
            "labels": [
                {
                    "name": "Beginner Friendly",
                    "color": "#fa1e4e"
                }
            ],
            "startedAt": "2024-11-09T15:14:35.724000",
            "dueAt": "2024-11-09T15:14:35.724000",
            "createdAt": "2024-11-09T15:14:35.724000",
            "updatedAt": "2024-10-18T15:55:14.802000Z",
            "createdBy": {
                "id": "xQ1CkCncM8Novk252oAj",
                "name": "SYSTEM"
            },
            "updatedBy": {
                "id": "Kn5N4Z3mdvpkv0HpqUCt",
                "name": "SYSTEM"
            }
        }
    ]
}

Error Response (Incorrect query params)

URL - GET http://127.0.0.1:8000/v1/tasks?page=1&limit=-1

Response Code: 400

{
    "statusCode": 400,
    "message": "Invalid request",
    "errors": [
        {
            "source": {
                "parameter": "limit"
            },
            "detail": "limit must be greater than or equal to 1"
        }
    ]
}

### Documentation Updated?

• Yes
• No

Under Feature Flag

• Yes
• No

Database Changes

• Yes
• No

Breaking Changes

• Yes
• No

Development Tested?

• Yes
• No

Screenshots

Success Response

Error Response (Incorrect query params)

Test Coverage

Coverage Report

Additional Notes

[vinit717]

Please break the pr into small parts

[samarpan1738]

Broken this PR into smaller PRs mentioned here
Hence closing this PR