Add cookie option on Initialize Tenancy by Request identification

[amjeed-ay]

Description

Add Tenant Identification by Request Cookie Identification on InitializeTenancyByRequestData middleware payload which can work the same as Request Header Identification.

Why this should be added

When using InitializeTenancyByRequestData In a SPA front-end we need to set a header on every request that will be send to our backend or set query params with tenant id. So in this approach When a user login will receive X-Tenant cookie with value tenant id from Authentication Controller which will be use on the next requests to identify tenant.

I tested it on my project and it works:

How it works

on Authentication controller $response->withCookie(cookie('X-Tenant', $tenant, 120));

in InitializeTenancyByRequestData middleware from stancl\tenancy\src\Middleware\InitializeTenancyByRequestData.php

we add another condition to check if request cookie exist with key X-Tenant then we use the value

 protected function getPayload(Request $request): ?string
    {
        $tenant = null;
        if (static::$header && $request->hasHeader(static::$header)) {
            $tenant = $request->header(static::$header);
        } elseif (static::$queryParameter && $request->has(static::$queryParameter)) {
            $tenant = $request->get(static::$queryParameter);
        } 

         // add below condition ...........
        elseif (static::$header && $request->hasCookie(static::$header)) {   // check if request has cookie with key X-Tenant
            $tenant = $request->cookie(static::$header);    
        }      

        return $tenant;
    }

``