How to Use the Command 'peludna-prognoza' (with Examples)

The command peludna-prognoza is a nifty tool for those who suffer from allergies or who are otherwise interested in pollen data across various Croatian cities. By leveraging Pliva’s allergies data API, this command allows users to fetch the latest pollen measurement data directly from their terminal. This simplifies access to allergy information without the need to manually search online. The command supports multiple output formats and functionalities, enabling users to view the data in a web browser or output it in formats suitable for machine processing.

Use Case 1: Start an Interactive Search for a City and Fetch Data

Code:

peludna-prognoza

Motivation: This use case is ideal for users who are not sure which city’s pollen data they need. It enables interactive searching, which is especially useful for those exploring their options or for users who need data from multiple cities but haven’t decided which ones yet. The interactive mode provides a user-friendly means to navigate through available data without needing to remember city names or worry about typos.

Explanation: Executing the command without any arguments launches an interactive search interface. This interface prompts the user to gradually refine their search by interacting step-by-step with the tool. Such a method is beneficial for users who prefer a guided approach rather than using direct input commands.

Example Output:

Welcome to peludna-prognoza interactive mode!
Please enter the name of the city you want pollen data for:
> Zagreb
Fetching pollen data for Zagreb...
Today's pollen levels for Zagreb are as follows:
Grass: High
Oak: Medium
Birch: Low

Use Case 2: Fetch Data for a Specific City

Code:

peludna-prognoza "Zagreb"

Motivation: This use case is designed for users who already know the specific city for which they need pollen data. By providing the city name directly to the command, it saves time and allows users straightforward access to the relevant pollen information. This is particularly useful for residents or frequent travelers who need allergy information for their location.

Explanation: The quoted city name provided as an argument is the target for which the pollen data will be fetched. The command is straightforward, with the only requirement being the correct spelling of the city’s name within quotes.

Example Output:

Fetching pollen data for Zagreb...
Today's pollen levels for Zagreb are as follows:
Grass: High
Oak: Medium
Birch: Low

Use Case 3: Display Data in a Machine-Readable Format

Code:

peludna-prognoza "Zagreb" --json

Motivation: This use case is especially valuable for developers and data analysts who want to integrate pollen data into their applications or for automated processing. By outputting the data in JSON or XML format, it supports programmatic access and further manipulation, enabling seamless integration into a variety of systems and analyses.

Explanation: By adding the --json flag after specifying the city name, the command outputs the pollen data in JSON format. This flag indicates that the output should be formatted in a machine-readable way, ideal for data integration and automated workflows. Alternatively, --xml can be used similarly if XML format is preferred.

Example Output:

{
  "city": "Zagreb",
  "date": "2023-04-15",
  "pollenData": {
    "grass": "high",
    "oak": "medium",
    "birch": "low"
  }
}

Use Case 4: Display the Pollen Measurement Page in a Web Browser

Code:

peludna-prognoza "Zagreb" --web

Motivation: This use case suits users who prefer visual representation of data or additional context that a webpage may provide, such as graphs or related health information. By automatically launching a browser tab with data, it simplifies access and provides the convenience of exploring further details visually.

Explanation: The --web flag opens the default web browser and directly navigates to the specific city’s pollen measurements page on the plivazdravlje.hr website. This is done by appending the flag after the city name in the command line, providing a quick shortcut to the online resources.

Example Output:

Opening pollen data page for Zagreb in your default web browser...

Conclusion:

The command peludna-prognoza is an adaptable utility that serves various use cases, whether you need interactive assistance, direct city data retrieval, integration with other software through machine-readable formats, or the graphical richness of web browsing. Its flexibility makes it an essential tool for anyone concerned about airborne allergens in Croatian cities.