affinidi-core-sdk

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affinidi-core-sdk

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Building blocks to empower individuals and organisations with ownership and control of their verifiable data. This SDK aims to help you enable Self Sovereign Identity (SSI) for your application.

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# Affinidi SDK Monorepo

> :warning: **WARNING:**
> Please be advised that the Affinidi SDK is deprecated and will no longer receive future updates. We have initiated this transition to streamline our development efforts and enhance the efficiency of our systems.

The open-source [Affinidi Library](https://github.com/affinityproject/affinidi-core-sdk) provides easy-to-use Typescript packages that enable developers to create and manage true certificate-enabled Digital Identities (DID) on the Affinidi Network.

The Affinidi open source monorepo has the following structure

```
.
├── common-libs
│   ├── common
│   ├── tiny-lds-ecdsa-secp256k1-2019
│   ├── did-auth-lib
│   ├── internal-api-clients
│   ├── tools-common
│   ├── tools-openapi
│   ├── url-resolver
│   ├── user-management
│   └── vc-common
│
└── platform
│   ├── fetch
│   ├── fetch-native
│   └── fetch-node
│
└── sdk
    ├── browser
    ├── core
    ├── expo
    ├── issuer-kit
    ├── node
    ├── react-native
    └── vc-data
```

### common-libs/common

The `common` folder contains the `@affinidi/common` [npm package](https://www.npmjs.com/package/@affinidi/common). This package implements DID, VC, and VP utilities that are used throughout Affinidi libraries and services. This package is considered more _opinionated_ because it supports DID methods and VC proofs that Affinidi actively supports.

The main entry point to this package is a class called `Affinity`. In this class you will find utilities for handling JSON-LD, DIDs, VCs, VPs, JWTs, and legacy credential types from early MVPs.

### common-libs/tiny-lds-ecdsa-secp256k1-2019

This packages is the same as https://github.com/decentralized-identity/lds-ecdsa-secp256k1-2019.js, but uses `tiny-secp256k1` for signing.

### common-libs/did-auth-lib

The `did-auth-lib` folder contains the `@affinidi/affinidi-did-auth-lib` [npm package](https://www.npmjs.com/package/@affinidi/affinidi-did-auth-lib). This library allows proving that the client/user is the owner of provided `DID`. Based on this proof App builders can give the client/user access to the appropriate resources.

### common-libs/vc-common

The `vc-common` folder contains the `@affinidi/vc-common` [npm package](https://www.npmjs.com/package/@affinidi/vc-common). This package implements VC and VP types and utility functions that help with type-safe credential issuance and verification. It is considered less _opinionated_ because it supports a wider variety of DIDs and VCs as long as they conform to the core data model.

Find more docs [here](https://docs.affinity-project.org/common/getting-started).

### sdk/core

The `core` folder contins the `@affinidi/wallet-core-sdk` [npm package](https://www.npmjs.com/package/@affinidi/wallet-core-sdk). This package implements the common logic for account registration & management, credential issuance & verification and more.

The main entry point is a class called `CommonNetworkMember`. This class can be initialized with specific service endpoints, or if left to it's defaults will use Affinidi's staging environment.

### sdk/browser

The `browser` folder contains the `@affinidi/wallet-browser-sdk` [npm package](https://www.npmjs.com/package/@affinidi/wallet-browser-sdk). This package extends the `wallet-core-sdk` logic with client specific implementations for crypto operations. As a result of crypto operations being platform specific, this package implements the logic to communicate with the encrypted data vault for VC storage.

The main entry point is a class called `AffinidiWallet`. Similar to `CommonNetworkMember`, the class can be initialized with specific service endpoints, or can be left to use Affinidi's staging environment by default.

### sdk/expo

The `expo` folder contains the `@affinidi/wallet-expo-sdk` [npm package](https://www.npmjs.com/package/@affinidi/wallet-expo-sdk). This package extends the `wallet-core-sdk` logic with client specific implementations for crypto operations. As a result of crypto operations being platform specific, this package implements the logic to communicate with the encrypted data vault for VC storage.

The main entry point is a class called `AffinidiWallet`. Similar to `CommonNetworkMember`, the class can be initialized with specific service endpoints, or can be left to use Affinidi's staging environment by default.

### sdk/react-native

The `react-native` folder contains the `@affinidi/wallet-react-native-sdk` [npm package](https://www.npmjs.com/package/@affinidi/wallet-react-native-sdk). This package extends the `wallet-core-sdk` logic with client specific implementations for crypto operations. As a result of crypto operations being platform specific, this package implements the logic to communicate with the encrypted data vault for VC storage.

The main entry point is a class called `AffinidiWallet`. Similar to `CommonNetworkMember`, the class can be initialized with specific service endpoints, or can be left to use Affinidi's staging environment by default.

### sdk/vc-data

The `vc-data` folder contains the `@affinidi/vc-data` [npm package](https://www.npmjs.com/package/@affinidi/vc-data). This package contains schema helpers and building blocks to issue JSON-LD credentials. The `vc-data` utilities also specify a process through which developers can propose additions or request assistance in schema development.

### sdk/issuer-kit

The `issuer-kit` folder contains the `@affinidi/issuer-kit` [npm package](https://www.npmjs.com/package/@affinidi/issuer-kit). This package contains a framework for launching microservices to connect to external data providers & issue VCs.

## Prerequisites

Before we begin, make sure you have the following installed:

- Node.js v16.17.0 or later
- npm v8.15.0 or later

## API Key

You need to to use an API Key when you initialize the SDK. Here are the steps required to generate and start using the API Key: https://github.com/affinityproject/affinidi-core-sdk/tree/master/sdk/core#create-api-key

## npm commands

The following commands should be supported by all projects in monorepo

- `build`: should build package
- `lint`: should run lint
- `checkLicenses`: should check licenses
- `test:unit`: should run unit tests, if any
- `test:integration`: should run integration tests, if any
- `test`: should run all tests
- `test:coverage`: should run all tests with coverage
- `test:coverage:codeclimate`: should run `test:coverage` and save codeclimate results

Workflow to publish npm packages is:

1. `npm run bootstrap` in order to link and install all dependencies;
2. `npm run build` in order to build all projects in this monorepo;
3. `npm run lint`, `npm run test`, `npm run checkLicenses` etc;
4. `npm run publish`.

Note that `prepare` command is not required as the projects are built on step 2 anyway, and `prepare` command is run for all projects during step 1, making it unnecessary long.

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