> For the complete documentation index, see [llms.txt](https://incubiq.gitbook.io/siww/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://incubiq.gitbook.io/siww/use-cases/nodejs-backend-implementation/todo.md).

# 1. Setup passport-wallet

We will first assume that you are familiar with **PassportJS**, and that you have already installed the following npm packages.

```
npm install passport
npm install passport-jwt
```

A **passport-wallet** strategy was developed to simplify a backend authentication via SIWW. Note that it requires (and will install) passport-oauth2.

Run the following command to install the **passport-wallet** authentication strategy.

```
npm install @incubiq/passport-wallet
```