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https://github.com/walt-id/waltid-walletkit

Toolkit for SSI and NFT/SBT wallets
https://github.com/walt-id/waltid-walletkit

blockchain cryptography decentralized-identifiers decentralized-identity identy java kotlin self-sovereign-identity siopv2 ssi verifiable-credentials wallet wallet-service

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Toolkit for SSI and NFT/SBT wallets

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README

          

## 🚨 Repository Moved

> [!IMPORTANT]
> This repository is no longer maintained.
>
> All walt.id development continues in the monorepo:
>
### 👉 Code **https://github.com/walt-id/waltid-identity** & Docs **https://docs.walt.id**


Wallet Kit


by walt.id

Supercharge your app with SSI, NFTs or fungible tokens


[![CI/CD Workflow for Walt.ID Wallet Kit](https://github.com/walt-id/waltid-walletkit/actions/workflows/ci.yml/badge.svg?branch=master)](https://github.com/walt-id/waltid-walletkit/actions/workflows/ci.yml)


Join community!


Follow @walt_id


## Discontinuation Notice

**Important:** Please be informed that, beginning from December 2023, the Wallet Kit will no longer receive new features. Furthermore, the Wallet Kit is planned for discontinuation by the end of Q3 2024.




However, all functionalities offered by the Wallet Kit are now integrated into our new libraries, APIs, and apps in the walt.id [identity repo](https://github.com/walt-id/waltid-identity). Giving you more modularity, flexibility and ease-of-use to build end-to-end digital identity and wallet solutions.




For any clarification or questions, feel free to [contact us](https://walt.id/discord).


## Getting Started

- [REST Api](https://docs.walt.id/v/web-wallet/getting-started/rest-apis) - Use the functionality of the Wallet Kit via an REST api.
- [Maven/Gradle Dependency](https://docs.walt.id/v/web-wallet/getting-started/dependency-jvm) - Use the functions of the Wallet Kit in a Kotlin/Java project.

The Wallet Kit on its own gives you, the backend infrastructure to build a custom wallet solution. However, in conjunction with our pre-build frontend components,
you can even have a full solution. Get started with the full solution, using:
- [Docker Compose](https://docs.walt.id/v/web-wallet/getting-started/local-build/docker-build/docker-compose#docker-compose)
- [Local Docker Build](https://docs.walt.id/v/web-wallet/getting-started/local-build#docker-build)
- [Local Build](https://docs.walt.id/v/web-wallet/getting-started/local-build/local-build)

Checkout the [Official Documentation](https://docs.walt.id/v/web-wallet/wallet-kit/readme), to find out more.

## What is the Wallet Kit?

It is the API and backend business logic for the walt.id web wallet.
Additionally, it includes a reference implementation of a Verifier and Issuer Portal backend.

## Services
### Web walletkit
* **User management**
* Authorization is currently mocked and not production ready
* User-context switching and user-specific encapsulated data storage
* **Basic user data management**
* List dids
* List credentials
* **Verifiable Credential and Presentation exchange**
* Support for credential presentation exchange based on OIDC-SIOPv2 spec

### Verifier portal backend
* **Wallet configuration**
* Possibility to configure list of supported wallets (defaults to walt.id web wallet)
* **Presentation exchange**
* Support for presentation exchange based on OIDC-SIOPv2 spec

### Issuer portal backend
* **Wallet configuration**
* Possibility to configure list of supported wallets (defaults to walt.id web wallet)
* **Verifiable credential issuance**
* Support for issuing verifiable credentials to the web wallet, based on OIDC-SIOPv2 spec

## Join the community

* Connect and get the latest updates: [Discord](https://discord.gg/AW8AgqJthZ) | [Newsletter](https://walt.id/newsletter) | [YouTube](https://www.youtube.com/channel/UCXfOzrv3PIvmur_CmwwmdLA) | [Twitter](https://mobile.twitter.com/walt_id)
* Get help, request features and report bugs: [GitHub Discussions](https://github.com/walt-id/.github/discussions)

## Related components | Full Solution
* [Web Wallet](https://github.com/walt-id/waltid-web-wallet) - The frontend solution for holders
* [Verifier Portal](https://github.com/walt-id/waltid-verifier-portal) - The frontend solution for verifiers
* [Issuer Portal](https://github.com/walt-id/waltid-issuer-portal) - The frontend solution for issuers

## Test deployment

The snap-shot version of this repository is automatically deployed for testing purpose. Feel free to access the test system at the following endpoints:

* https://issuer.walt.id
* https://wallet.walt.id
* https://verifier.walt.id

## Usage

Configuration and data are kept in sub folders of the data root:
* `config/`
* `data/`

Data root is by default the current **working directory**.

It can be overridden by specifying the **environment variable**:

`WALTID_DATA_ROOT`

### Verifier portal and wallet configuration:

**config/verifier-config.json**

```
{
"verifierUiUrl": "http://localhost:4000", # URL of verifier portal UI
"verifierApiUrl": "http://localhost:8080/verifier-api", # URL of verifier portal API
"wallets": { # wallet configuration
"walt.id": { # wallet configuration key
"id": "walt.id", # wallet ID
"url": "http://localhost:3000", # URL of wallet UI
"presentPath": "CredentialRequest", # URL subpath for a credential presentation request
"receivePath" : "ReceiveCredential/", # URL subpath for a credential issuance request
"description": "walt.id web wallet" # Wallet description
}
}
}
```

### Issuer portal and wallet configuration:

**config/issuer-config.json**

```
{
"issuerUiUrl": "http://localhost:5000", # URL of issuer portal UI
"issuerApiUrl": "http://localhost:8080/issuer-api", # URL of issuer portal API (needs to be accessible from the walletkit)
"wallets": { # wallet configuration
"walt.id": { # wallet configuration key
"id": "walt.id", # wallet ID
"url": "http://localhost:3000", # URL of wallet UI
"presentPath": "CredentialRequest", # URL subpath for a credential presentation request
"receivePath" : "ReceiveCredential/", # URL subpath for a credential issuance request
"description": "walt.id web wallet" # Wallet description
}
}
}
```

### Wallet backend configuration

User data (dids, keys, credentials) are currently stored under

`data/`

It is planned to allow users to define their own storage preferences, in the future.

### APIs

The APIs are launched on port 8080.

A **swagger documentation** is available under

`/api/swagger`

**Wallet API** is available under the context path `/api/`

**Verifier portal API** is available under the context path `/verifier-api/`

**Issuer portal API** is available under the context path `/issuer-api/`

## Build & run the Web Wallet Kit

_Gradle_ or _Docker_ can be used to build this project independently. Once running, one can access the Swagger API at http://localhost:8080/api/swagger

### Gradle

gradle build

unzip package under build/distributions and switch into the new folder. Copy config-files _service-matrix.properties_ and _signatory.conf_ from the root folder and run the bash-script:

./bin/waltid-walletkit

To run the backend you will execute:
```waltid-walletkit run```
To have issuers, you will have to execute:
```waltid-walletkit --init-issuer```

### Docker

docker build -t waltid/walletkit .

docker run -it -p 8080:8080 waltid/walletkit

## Running all components with Docker Compose

To spawn the **backend** together with the **wallet frontend**, the **issuer-** and the **verifier-portal**, one can make use of the docker-compose configuration located in folder:

`./docker/`

In order to simply run everything, enter:

docker-compose up

This configuration will publish the following endpoints by default:
* **web wallet** on _**[HOSTNAME]:8080**_
* wallet frontend: http://[HOSTNAME]:8080/
* wallet API: http://[HOSTNAME]:8080/api/
* **verifier portal** on _**[HOSTNAME]:8081**_
* verifier frontend: http://[HOSTNAME]:8081/
* verifier API: http://[HOSTNAME]:8081/verifier-api/
* **issuer portal** on _**[HOSTNAME]:8082**_
* issuer frontend: http://[HOSTNAME]:8082/
* issuer API: http://[HOSTNAME]:8082/issuer-api/

*Note*

**[HOSTNAME]** is your local computer name. Using **localhost**, not all features will work correctly.

Visit the `./docker`. folder for adjusting the system config in the following files
* **docker-compose.yaml** - Docker config for launching containers, volumes & networking
* **ingress.conf** - Routing config
* **config/verifier-config.json** - verifier portal configuration
* **config/issuer-config.json** - issuer portal configuration

## Initializing Wallet Kit as EBSI/ESSIF Issuer

By specifying the optional startup parameter **--init-issuer** the walletkit can be initialized as issuer-backend in line with the EBSI/ESSIF ecosystem. Note that this is for demo-purpose only.

```
cd docker
docker pull waltid/walletkit
docker run -it -v $PWD:/waltid-walletkit/data-root -e WALTID_DATA_ROOT=./data-root waltid/walletkit --init-issuer

# For the DID-method enter: "ebsi"
# For the bearer token copy/paste the value from: https://app.preprod.ebsi.eu/users-onboarding
```

The initialization routine will output the DID, which it registered on the EBSI/ESSIF ecosystem.

## Relevant Standards

- [Self-Issued OpenID Provider v2](https://openid.bitbucket.io/connect/openid-connect-self-issued-v2-1_0.html)
- [OpenID Connect for Verifiable Presentations](https://openid.net/specs/openid-connect-4-verifiable-presentations-1_0-07.html)
- [OpenID Connect for Verifiable Credential Issuance](https://tlodderstedt.github.io/openid-connect-4-verifiable-credential-issuance-1_0-01.html)
- [EBSI Wallet Conformance](https://ec.europa.eu/digital-building-blocks/wikis/display/EBSIDOC/EBSI+Wallet+Conformance+Testing)
- [Verifiable Credentials Data Model 1.0](https://www.w3.org/TR/vc-data-model/)
- [Decentralized Identifiers (DIDs) v1.0](https://w3c.github.io/did-core/)
- [DID Method Rubric](https://w3c.github.io/did-rubric/)
- [did:web Decentralized Identifier Method Specification](https://w3c-ccg.github.io/did-method-web/)
- [The did:key Method v0.7](https://w3c-ccg.github.io/did-method-key/)

## License

Licensed under the [Apache License, Version 2.0](https://github.com/walt-id/waltid-walletkit/blob/master/LICENSE)