Verifier implementation

[guillaumervls]

Hi and thanks for the framework,

I need to customize my local authentication strategy. For that I can provide a subclass of local.Verifier with a custom verify method. The problem is that in this method I need to return the token payload, and if I don't use the form { [`${this.options.entity}Id`]: id } like in the default one, it won't be working with the jwt.Verifier class used by the jwt strategy (among other since it looks like each strategy module gets its own Verifier class).

Should there be a single source of truth for this ? Like somewhere a unique (possibly also overridable) function entity => jwtPayload ?

Am I missing something ?

Cheers

[daffl]

Yes there should be and the use id should really be included in the tokens sub header instead of the payload. This will be possible in the next version.

[matiaslopezd]

@daffl Hi!

I have a problems follow this docs trying create my custom Verifier because import return error of syntax.

import local, { Verifier } from '@feathersjs/authentication-local';

class CustomVerifier extends Verifier {
 //Custom code
}

import local, { Verifier } from '@feathersjs/authentication-local';
       ^^^^^

SyntaxError: Unexpected identifier
    at new Script (vm.js:79:7)
    at createScript (vm.js:251:10)
    at Object.runInThisContext (vm.js:303:10)
    at Module._compile (internal/modules/cjs/loader.js:656:28)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:699:10)
    at Module.load (internal/modules/cjs/loader.js:598:32)
    at tryModuleLoad (internal/modules/cjs/loader.js:537:12)
    at Function.Module._load (internal/modules/cjs/loader.js:529:3)
    at Module.require (internal/modules/cjs/loader.js:636:17)
    at require (internal/modules/cjs/helpers.js:20:18)
    at Object.<anonymous> (C:\xampp\htdocs\api-feathers\src\app.js:22:24)
    at Module._compile (internal/modules/cjs/loader.js:688:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:699:10)
    at Module.load (internal/modules/cjs/loader.js:598:32)
    at tryModuleLoad (internal/modules/cjs/loader.js:537:12)
    at Function.Module._load (internal/modules/cjs/loader.js:529:3)

The only way to make my custom Verifier is with this method:

authentication.js

const local = require('@feathersjs/authentication-local');

class CustomVerifier extends local.Verifier {
 //Custom code
}

[daffl]

It is indeed, I updated the docs.

[matiaslopezd]

The same with JWT Verifier. Pull request: #1276 in docs.

[daffl]

Setting the sub properly has been implemented in Feathers v4 authentication. See the Migration guide for more information on how to upgrade.