SDKs overview

PostNord, a logistics and postal service provider in the Nordic region, focuses on offering direct API access rather than official Software Development Kits (SDKs) to developers. This approach allows for integration using standard HTTP client libraries across various programming languages. The PostNord developer portal provides documentation and API references for its core services, including delivery tracking, delivery checkout, and service point location services.

Developers implementing PostNord's APIs typically interact with RESTful endpoints directly. This requires constructing HTTP requests, handling JSON responses, and managing API authentication, which often involves API keys or OAuth 2.0 flows depending on the specific API. The advantage of this direct integration model is flexibility, as it does not tie developers to a specific language or framework provided by an SDK. Instead, developers can use existing HTTP client libraries in their preferred language.

For example, a developer might use Python's requests library, Node.js's axios, or Java's HttpClient to interact with the PostNord APIs. This method is common for services that prioritize broad language compatibility and minimal overhead in maintaining language-specific SDKs. The PostNord API reference details the available endpoints, request parameters, and response structures for each service.

Official SDKs by language

As of 2026, PostNord does not officially provide language-specific SDKs. The developer experience notes confirm that direct API integration is the primary method for interacting with their services. Developers are expected to utilize standard HTTP client libraries available in their chosen programming language to construct requests and parse responses from PostNord's RESTful APIs. This strategy allows developers to integrate with the PostNord platform using any programming language that supports HTTP communication.

The absence of official SDKs means that there is no predefined package or library maintained by PostNord for specific languages like Python, Java, Node.js, or .NET. Instead, integration relies on a universal approach to API consumption, where the developer implements the client-side logic for authentication, request formatting, and response parsing based on the API specifications provided in the PostNord developer documentation.

Here's a conceptual table illustrating the absence of official SDKs and the typical approach:

Language Official Package Recommended Approach Maturity
Python None Direct API calls with requests library N/A (developer-managed)
JavaScript/Node.js None Direct API calls with fetch or axios N/A (developer-managed)
Java None Direct API calls with HttpClient or OkHttp N/A (developer-managed)
PHP None Direct API calls with GuzzleHttp N/A (developer-managed)
Ruby None Direct API calls with Net::HTTP or Faraday N/A (developer-managed)
C#/.NET None Direct API calls with HttpClient N/A (developer-managed)

Installation

Since PostNord does not offer official SDKs, installation typically refers to setting up the necessary HTTP client libraries in your development environment. These libraries are usually installed via package managers specific to your programming language.

For example, to install a common HTTP client in Python, you would use pip:

pip install requests

For Node.js, you might use npm or yarn to install axios:

npm install axios
# or
yarn add axios

In a Java project, you would add dependencies to your build file (e.g., pom.xml for Maven or build.gradle for Gradle) for an HTTP client like Apache HttpClient or OkHttp. For Apache HttpClient with Maven:

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

After installing the HTTP client, the next step involves configuring your API key or authentication credentials. PostNord APIs typically use API keys, which you obtain from your PostNord developer account. These keys are then included in the headers or query parameters of your HTTP requests as specified in the PostNord API documentation.

Quickstart example

This example demonstrates how to use Python's requests library to query the PostNord Delivery Tracking API. This example assumes you have obtained an API key from the PostNord developer portal and have installed the requests library (pip install requests).

Python (Tracking API)

import requests
import json

# Replace with your actual API Key obtained from PostNord developer portal
API_KEY = "YOUR_POSTNORD_API_KEY"

# Replace with the tracking ID of the parcel you want to track
TRACKING_ID = "example_tracking_id"

# The endpoint for the Delivery Tracking API
# Refer to PostNord's API documentation for the correct base URL and endpoint details
# Example URL structure, actual URL might vary. Consult https://developer.postnord.com/api-reference
BASE_URL = "https://api.postnord.com/trackandtrace/v2/shipments"

headers = {
    "Accept": "application/json",
    "API_KEY": API_KEY
}

params = {
    "id": TRACKING_ID,
    "locale": "en"
}

try:
    response = requests.get(BASE_URL, headers=headers, params=params)
    response.raise_for_status()  # Raises HTTPError for bad responses (4xx or 5xx)

    tracking_data = response.json()
    print(json.dumps(tracking_data, indent=2))

    # Example of accessing specific data
    if tracking_data and "shipments" in tracking_data and tracking_data["shipments"]:
        shipment = tracking_data["shipments"][0]
        print(f"\nShipment ID: {shipment.get('shipmentId')}")
        print(f"Status: {shipment.get('status')}")
        if "items" in shipment and shipment["items"]:
            latest_event = shipment["items"][0].get("events")
            if latest_event:
                print(f"Latest Event Description: {latest_event[0].get('description')}")
                print(f"Latest Event Date: {latest_event[0].get('date')}")

except requests.exceptions.HTTPError as http_err:
    print(f"HTTP error occurred: {http_err} - {response.text}")
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 unexpected error occurred: {req_err}")
except json.JSONDecodeError:
    print(f"Failed to decode JSON response: {response.text}")

This quickstart code snippet demonstrates:

  1. Importing the necessary requests and json libraries.
  2. Defining your API key and the parcel's tracking ID.
  3. Constructing the request headers with the Accept type and API_KEY.
  4. Specifying query parameters such as id and locale.
  5. Making a GET request to the PostNord tracking endpoint.
  6. Handling potential HTTP errors and parsing the JSON response.
  7. Printing a formatted JSON response and extracting key information like shipment status and latest event details.

Always refer to the PostNord API documentation for the most current endpoint URLs, required parameters, and response structures for each specific API (e.g., Delivery Checkout, Service Point Finder, Address API).

Community libraries

While PostNord does not maintain official SDKs, the nature of open APIs often leads to the development of community-contributed libraries. These libraries are typically created by developers who have integrated with PostNord's APIs and choose to open-source their client implementations to assist others. Community libraries can offer wrappers around the raw HTTP requests, providing a more idiomatic interface for a specific programming language, handling common tasks like authentication, error parsing, and data serialization/deserialization.

The existence and quality of community libraries can vary significantly. They are often found on platforms like GitHub, npm (for JavaScript), PyPI (for Python), or Maven Central (for Java). When considering a community library, it is advisable to evaluate its:

  • Maintenance status: How recently was it updated? Is it actively maintained?
  • Documentation: Is there clear documentation on how to use it?
  • Community support: Are there issues being addressed? Is there an active user base?
  • Compatibility: Does it support the specific PostNord API versions and features you intend to use?
  • Security: Does it handle API keys and sensitive data securely?

Because these are not officially supported, using community libraries introduces a dependency on third-party code, which may not always align with the latest API changes or security standards set by PostNord. Developers should perform due diligence when selecting and integrating such libraries. Searching public repositories like GitHub for 'PostNord API' can reveal community-driven projects, though their official endorsement or long-term support cannot be guaranteed.

For critical production systems, direct integration with an HTTP client, as outlined in the installation and quickstart sections, provides maximum control and minimizes reliance on external community-maintained codebases, ensuring closer adherence to the official PostNord API specification.