aaronjameslang / claudia-api-jwt-authenticator

import {

    decode as jwtDecode,

    GetPublicKeyOrSecret,

    verify as jwtVerify,

    VerifyOptions

} from 'jsonwebtoken'

import depromisify, { SecretOrPublicKeyCb } from './depromisifi'

export { VerifyOptions }

export type SecretOrPublicKey = string | Buffer | GetPublicKeyOrSecret

export interface Jwt {

  header: {

    alg?: string,

    typ?: string,

    [key: string]: any

  },

  payload: { [key: string]: any },

  signature: string

}

const decode = (token: string): Jwt => jwtDecode(token, { complete: true }) as Jwt

export type VerifyCallback = (error: any, jwt?: Jwt) => void

export const verify = (

    token: string,

    secretOrPublicKey: SecretOrPublicKey,

    options: VerifyOptions,

    callback: VerifyCallback

) => {

  const secretOrPublicKeyCb: SecretOrPublicKeyCb = depromisify(secretOrPublicKey)

  jwtVerify(token, secretOrPublicKeyCb, { ...options }, (error) => {

    if (error) {

      callback(error)

    }

    callback(null, decode(token))

  })

}

export default verify