About the FIT-Connect Java SDK

The Java SDK for FIT-Connect enables to build clients for senders and subscribers without directly interacting with any REST-Endpoints. It provides a simple fluent API that guides through the creation and sending of a submission, as well as receiving submissions as a subscriber.

For further information, check out the official docs: FIT-Connect Documentation as well as the:

• Self-Service-Portal (Testing Environment)
• FITKO project website

Build Dependencies

This section lists major frameworks/libraries used in the SDK.

• Java 11 (LTS)
• Maven 3.x
• Junit 5

Further 3rd party dependencies:

• Nimbus-Jose JWT
• Spring Web/HTTP
• Jackson FasterXMl
• JCommander
• Snakeyaml

Getting Started

How to set up the SDK project locally.

Prerequisites

• Java Runtime >= 11, check your current setup in your commandline

  java --version 

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Modules

See the projects' module documentation for more specific information:

• API Module
• Core Module
• Client Module

Setup

The following steps show how to get the SDK running

1. Create and account on the self service portal
2. Get your sender/subscriber API-key credentials
3. Clone the sdk repo

   git clone https://git.fitko.de/fit-connect/sdk-java

4. Build the project

   ./mvnw clean install -DskipTests

5. Enter your API keys and references to your private decryption key in config.yml
6. Provide config via environment variable FIT_CONNECT_CONFIG or load the config with

     var config = ApplicationConfigLoader.loadConfig("absolute/path/to/config.yml");
     var senderClient = ClientFactory.senderClient(config);

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Usage

Hand in new submission

ClientFactory.senderClient(config)
        .newSubmission()
        .withAttachment(Path.of("path/to/attachment.txt").toFile()) // optional
        .withJsonData("{ foo: 'bar'}")
        .withDestination(UUID.fromString("destinationId"))
        .withServiceType("TestService", "Führerscheinbeantragung",  "urn:de:fim:leika:leistung:99400048079000")
        .submit();

Hand in already encrypted submission (e.g. from frontend)

ClientFactory.senderClient(config)
        .newSubmissionWithEncryptedData("$encrpyt€ed d@t@")
        .withEncryptedAttachment(UUID.fromString("attachmentId"), "$encrpyt€ed @tt@chment")
        .withEncryptedJsonData("{$encrpyt€ed json}")
        .withEncryptedMetadata("$encrpyt€ed metadata")
        .withDestination(UUID.fromString("destinationId"))
        .withServiceType("TestService", "Führerscheinbeantragung",  "urn:de:fim:leika:leistung:99400048079000")
        .submit();

Retrieve public encryption key

Optional<String> jweKey =  ClientFactory.subscriberClient(config).getPublicKey(UUID.fromString("destinationId"));

List all submissions for a destination

Set<SubmissionForPickup> submissions =  ClientFactory.subscriberClient(config).getAvailableSubmissions(UUID.fromString("destinationId"));

Receive single submission

Optional<ReceivedSubmission> submission =  ClientFactory.subscriberClient(config).requestSubmission(UUID.fromString("destinationId"));

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Roadmap

• Add Routing features
• Add Callback handling

See the open issues for a full list of proposed features (and known issues).

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Contact

FIT-Connect Contact Page for further information

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License

Source code is licensed under the EUPL.

Rechtlicher Hinweis: Dieses Software Development Kit (SDK) ist dazu bestimmt, die Anbindung einer Software an die FIT-Connect-Infrastruktur zu ermöglichen. Hierfür kann das SDK in die anzubindenden Software integriert werden. Erfolgt die Integration des SDK in unveränderter Form, liegt keine Bearbeitung im Sinne der EUPL bzw. des deutschen Urheberrechts vor. Die Art und Weise der Verlinkung des SDK führt insbesondere nicht zur Schaffung eines abgeleiteten Werkes. Die unveränderte Übernahme des SDK in eine anzubindende Software führt damit nicht dazu, dass die anzubindende Software unter den Bedingungen der EUPL zu lizenzieren ist. Für die Weitergabe des SDK selbst - in unveränderter oder bearbeiteter Form, als Quellcode oder ausführbares Programm - gelten die Lizenzbedingungen der EUPL in unveränderter Weise.

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