# Large file reading challenge

Welcome in the recruitment challenge.
Write an application that, at the endpoint specified by you, returns the yearly average temperatures for a given city in
the format array of objects with the following fields: year, averageTemperature.

## Assumptions

- CSV file with data is no less than 3GB in size.
- The file represents temperature measurements in the format city;yyyy-mm-dd HH:mm:ss.SSS;temp
- The content of the source file may change during the application's running

## Example source file

[example_file.csv](example_file.csv)

## Response

### Schema

[response_schema](schema/response.json)

### Example

```json
[
    {
        "year": "2021",
        "averageTemperature": 12.1
    },
    {
        "year": "2022",
        "averageTemperature": 11.1
    },
    {
        "year": "2023",
        "averageTemperature": 14.1
    }
]
```

## Configuration

| property      | description                    | default               |
|---------------|--------------------------------|-----------------------|
| data.file-url | path to file with temperatures | data/temperatures.csv |

## Usage

Temperature statistics endpoint: `/api/temperatures/{city}`
Returns HTTP 200 when city is found, 404 otherwise.