Geodata.gov.gr SDKs & Libraries: Greek Geocoding Integration (2026)

SDKs overview

Geodata.gov.gr provides access to Greek geospatial data primarily through a RESTful API. While the platform itself offers a direct API for geocoding, reverse geocoding, and address search functions, developers often utilize Software Development Kits (SDKs) and libraries to simplify integration. SDKs abstract the underlying HTTP requests and response parsing, offering language-specific methods and data structures. This approach can reduce development time and potential errors compared to constructing raw API calls.

The Geodata.gov.gr API is designed to be straightforward, typically requiring no authentication for public access, which simplifies initial integration efforts. Developers can consult the official Geodata.gov.gr API reference for detailed endpoint specifications, request parameters, and response formats. Understanding the API's structure is foundational for effective use of any SDK or library.

While some platforms provide extensive official SDKs across multiple languages, others rely on the community to build and maintain libraries based on their public API specifications. The choice between using an official SDK, a community-contributed library, or directly interacting with the REST API depends on factors such as project requirements, language preference, and the level of abstraction desired. For example, a developer might choose a Python library for data analysis tasks, while a JavaScript library might be preferred for web-based mapping applications.

Official SDKs by language

As of 2026-05-29, Geodata.gov.gr primarily offers direct API access via its RESTful interface. The official documentation emphasizes direct HTTP requests and responses, providing examples in various common formats such as JSON. Consequently, there are no officially maintained, language-specific SDKs distributed directly by Geodata.gov.gr in the same manner as some commercial API providers like Stripe's official libraries or Google Maps Platform client libraries.

Developers integrating with Geodata.gov.gr typically construct API calls using standard HTTP client libraries available in their chosen programming language. This approach offers flexibility and direct control over the request and response handling. The official API documentation serves as the primary resource for understanding how to interact with the service, regardless of the programming language used. It details endpoints for operations such as geocoding an address or performing a reverse geocode lookup, along with expected input parameters and output structures.

The following table outlines how developers typically approach integration, given the absence of dedicated official SDKs from Geodata.gov.gr:

Installation

Since Geodata.gov.gr does not provide official, dedicated SDKs, installation typically involves setting up a standard HTTP client library in your preferred programming language. These libraries are widely available through package managers and are fundamental tools for making web requests. The following examples demonstrate common installation procedures for popular languages.

Python

For Python, the requests library is a common choice for making HTTP requests. It can be installed using pip:

pip install requests

JavaScript (Node.js)

In Node.js environments, axios is a popular promise-based HTTP client. Install it via npm:

npm install axios

For browser-based JavaScript, the native fetch API is generally available and does not require installation. If a polyfill or older browser support is needed, consider libraries like whatwg-fetch.

Java

For Java, the built-in java.net.HttpClient (available since Java 11) or the Apache HttpClient library can be used. If using Maven, add the Apache HttpClient dependency to your pom.xml:

<dependency>
    <groupId>org.apache.httpcomponents</groupId>
    <artifactId>httpclient</artifactId>
    <version>4.5.13</version> <!-- Use the latest stable version -->
</dependency>

PHP

For PHP, Guzzle HTTP Client is a widely used and robust option. Install it using Composer:

composer require guzzlehttp/guzzle

C# (.NET)

In C# .NET applications, the System.Net.Http.HttpClient class is part of the .NET framework and does not require separate installation. You can simply reference it in your code.

Quickstart example

This quickstart demonstrates how to perform a geocoding request using the Geodata.gov.gr API to find the coordinates for a specific address in Greece. The example uses Python with the requests library, illustrating the direct API interaction approach.

Python Geocoding Example

First, ensure you have the requests library installed as described in the Installation section.

import requests
import json

# Geodata.gov.gr API base URL for geocoding
BASE_URL = "https://geodata.gov.gr/api/geocoding/"

# Address to geocode (example: Syntagma Square, Athens)
address = "Πλατεία Συντάγματος, Αθήνα"

# Parameters for the geocoding request
# The 'q' parameter is typically used for the query string (address)
params = {
    "q": address
}

try:
    # Make the GET request to the geocoding API
    response = requests.get(BASE_URL, params=params)

    # Raise an exception for HTTP errors (4xx or 5xx)
    response.raise_for_status()

    # Parse the JSON response
    data = response.json()

    # Check if results are available
    if data and isinstance(data, list) and len(data) > 0:
        first_result = data[0]
        print(f"Geocoding results for '{address}':")
        print(f"  Address: {first_result.get('display_name')}")
        print(f"  Latitude: {first_result.get('lat')}")
        print(f"  Longitude: {first_result.get('lon')}")
        print(f"  Type: {first_result.get('type')}")
    else:
        print(f"No geocoding results found for '{address}'.")

except requests.exceptions.HTTPError as http_err:
    print(f"HTTP error occurred: {http_err}")
except requests.exceptions.ConnectionError as conn_err:
    print(f"Connection error occurred: {conn_err}")
except requests.exceptions.Timeout as timeout_err:
    print(f"Timeout error occurred: {timeout_err}")
except requests.exceptions.RequestException as req_err:
    print(f"An error occurred: {req_err}")
except json.JSONDecodeError:
    print(f"Failed to decode JSON response: {response.text}")

This script constructs a URL with the provided address as a query parameter and sends a GET request to the Geodata.gov.gr geocoding endpoint. It then parses the JSON response and prints the latitude, longitude, and display name of the first result. Error handling is included for common network and HTTP issues.

Community libraries

Given the direct RESTful nature of the Geodata.gov.gr API and the absence of official SDKs, community efforts often focus on creating wrappers or utility libraries that streamline interaction with the API. These community-contributed libraries can simplify development by providing higher-level abstractions over HTTP requests, handling JSON parsing, and offering language-idiomatic interfaces.

Developers seeking community libraries should typically search public code repositories like GitHub or package managers (e.g., PyPI for Python, npm for JavaScript) using keywords such as "Geodata.gov.gr", "Greek geocoding", or "Ελληνική γεωκωδικοποίηση" (Greek for "Greek geocoding"). It is important to evaluate community libraries based on their activity, documentation, test coverage, and the reputation of their maintainers. Factors such as the last commit date, number of contributors, and open issues can indicate the library's health and ongoing support.

While specific widely adopted community libraries for Geodata.gov.gr may evolve over time, the general approach involves:

• Python: A library might offer functions like geocode_address('Πλατεία Συντάγματος') which internally uses requests to call the Geodata.gov.gr API and returns a structured object.
• JavaScript: A utility function or class could encapsulate fetch calls to the API, returning promises with parsed geocoding results for use in web or Node.js applications.
• Other Languages: Similar wrappers would exist, abstracting the HTTP client and response handling specific to their language ecosystems.

When using community-contributed code, developers should review the source code for security vulnerabilities and ensure compatibility with the latest version of the Geodata.gov.gr API. The Mozilla Developer Network's Fetch API documentation provides a good general reference for understanding how web APIs are consumed, which is relevant even when using wrappers.