Getting an access token of VRChat API. and then getting friend list using it. VRChat APIでアクセストークンを使って、フレンドを取得するやつ。

auth-user.ts

import axios from 'axios'

function isThatArray<T>(x: unknown, p: (a: unknown) => a is T): x is Array<T> {
  return Array.isArray(x) && x.every(p)
}

function isString(x: unknown): x is string {
  return typeof x === 'string'
}

const vrchatApi = {
  url: 'https://api.vrchat.cloud/api/1' as const,
  apiKey: 'JlE5Jldo5Jibnk5O5hTx6XVqsJu4WJ26' as const,
} as const

async function main(): Promise<void> {
  try {
    const auth = process.argv[2]
    console.log('auth:', auth)
    if (auth === undefined) {
      throw new Error('Give me an authorization.')
    }

    const response = await axios.get(`${vrchatApi.url}/auth/user?apiKey=${vrchatApi.apiKey}`, {
      headers: {
        Origin: 'https://vrchat.com',
        Authorization: `Basic ${auth}`,
      },
    })

    const cookie: unknown = response.headers['set-cookie']
    if (!isThatArray(cookie, isString)) {
      throw new Error(`response.headers["set-cookie"] is it not an array: ${cookie}`)
    }

    const tokenCookie = cookie.find((x) => /^auth=/.test(x))
    if (tokenCookie === undefined) {
      throw new Error('The accessToken of the specified user is not found.')
    }

    const token = tokenCookie.split(/^auth=([^;]+);/)[1]
    if (token === undefined) {
      throw new Error('Exctracting the access token is failed')
    }

    console.log(token)
  } catch (e) {
    console.log('Fatal error:', e)
  }
}

main()

get-friends-with-access-token.ts

import axios from 'axios'

const vrchatApi = {
  url: 'https://api.vrchat.cloud/api/1' as const,
  apiKey: 'JlE5Jldo5Jibnk5O5hTx6XVqsJu4WJ26' as const,
} as const

async function main(): Promise<void> {
  try {
    const token = process.argv[2]
    if (token === undefined) {
      throw new Error('Give me an access token.')
    }

    const response = await axios.get(
      `${vrchatApi.url}/auth/user/friends?apiKey=${vrchatApi.apiKey}`,
      {
        headers: {
          Origin: 'https://vrchat.com',
          Cookie: `auth=${token}`,
        },
      },
    )

    console.log(response)
  } catch (e) {
    console.error('Fatal error:', e)
  }
}

main()

VRChat APIでアクセストークンを使って、フレンドを取得するやつ。