Laravel code I love. This was for a project on my current work. The requirement was to have an API call to fetch documents, but we have 3 different types of documents and 2 different types of ways that those documents can come. So, I´ve created this small widget to make it happen, that It worked great!

ObtenerProtocolos.php

<?php

namespace App\Http\Controllers\API\Apps\Protocolos;

use Illuminate\Http\Request;
use App\Http\Controllers\Controller;
use Illuminate\Support\Facades\Storage;

class ObtenerProtocolos extends Controller
{
    /**
     * Handle the incoming request.
     *
     * @param  \Illuminate\Http\Request  $request
     * @return \Illuminate\Http\Response
     */
    public function __invoke(Request $request)
    {
        $className = 'App\Http\Controllers\API\Apps\Protocolos\\' . ucfirst($request->get('organismo')) . ucfirst($request->get('tipo_descarga'));

        $class = new $className();

        return response()->json($class->obtenerProtocolo($request));
    }
}

ObtenerProtocolosTest.php

<?php

namespace Tests\Feature\Apps\Escritos;

use App\Modelos\Apps\Liquidar\Liquidacion;
use App\Organismo;
use App\User;
use Tests\TestCase;
use Illuminate\Foundation\Testing\WithFaker;
use Illuminate\Foundation\Testing\RefreshDatabase;

class ObtenerProtocolosTest extends TestCase
{
    use RefreshDatabase;
    use WithFaker;

    /**
     * @test
     */
    public function obtengo_protocolos_completos_de_una_sala_correspondientes_a_un_año_en_particular()
    {

        $response = $this->json('POST','api/v1/protocolos', [
            'tipo_descarga' => 'completo',
            'organismo' => 'sala',
            'organismo_numero' => 1,
            'organismo_todos' => false,
            'anio' => 2018,
            'mes' => '',
        ]);

        $response->assertSuccessful();

        $response->assertJson([
            'url' => '/completos/salas/2018/2018-SalaI.exe'
        ]);

    }

    /**
     * @test
     */
    public function obtengo_protocolos_completos_de_un_sala_8_a_un_año_en_particular()
    {

        $response = $this->json('POST','api/v1/protocolos', [
            'tipo_descarga' => 'completo',
            'organismo' => 'sala',
            'organismo_numero' => 8,
            'organismo_todos' => false,
            'anio' => 2018,
            'mes' => '',
        ]);

        $response->assertSuccessful();

        $response->assertJson([
            'url' => '/completos/salas/2018/2018-SalaVIII.exe'
        ]);

    }

    /**
     * @test
     */
    public function obtengo_protocolos_completos_de_todas_las_salas_en_un_año_en_particular()
    {

        $response = $this->json('POST','api/v1/protocolos', [
            'tipo_descarga' => 'completo',
            'organismo' => 'sala',
            'organismo_numero' => 10,
            'organismo_todos' => true,
            'anio' => 2018,
            'mes' => '',
        ]);

        $response->assertSuccessful();

        $response->assertJson([
            'url' => '/completos/salas/2018/Salas-2018.exe'
        ]);

    }

    /**
     * @test
     */
    public function si_no_existe_protocolo_completo_de_sala_debe_existir_algun_error()
    {

        $response = $this->json('POST','api/v1/protocolos', [
            'tipo_descarga' => 'completo',
            'organismo' => 'sala',
            'organismo_numero' => 8,
            'organismo_todos' => false,
            'anio' => 2016,
            'mes' => '',
        ]);

        $response->assertStatus(500);

        $response->assertJsonFragment([
            'message' => 'El archivo solicitado no se encuentra disponible'
        ]);
    }

    /**
     * @test
     */
    public function obtengo_protocolos_completos_de_un_juzgado_menor_a_10()
    {

        $response = $this->json('POST','api/v1/protocolos', [
            'tipo_descarga' => 'completo',
            'organismo' => 'juzgado',
            'organismo_numero' => 9,
            'organismo_todos' => false,
            'anio' => 2018,
            'mes' => '',
        ]);

        $response->assertSuccessful();

        $response->assertJson([
            'url' => '/completos/juzgados/2018/2018-J09.exe'
        ]);

    }

    /**
     * @test
     */
    public function obtengo_protocolos_completos_de_un_juzgado_mayor_igual_a_10()
    {

        $response = $this->json('POST','api/v1/protocolos', [
            'tipo_descarga' => 'completo',
            'organismo' => 'juzgado',
            'organismo_numero' => 10,
            'organismo_todos' => false,
            'anio' => 2018,
            'mes' => '',
        ]);

        $response->assertSuccessful();

        $response->assertJson([
            'url' => '/completos/juzgados/2018/2018-J10.exe'
        ]);

    }

    /**
     * @test
     */
    public function si_no_existe_protocolo_completo_de_juzgado_debe_existir_algun_error()
    {

        $response = $this->json('POST','api/v1/protocolos', [
            'tipo_descarga' => 'completo',
            'organismo' => 'juzgado',
            'organismo_numero' => 10,
            'organismo_todos' => false,
            'anio' => 2016,
            'mes' => '',
        ]);

        $response->assertStatus(500);

        $response->assertJsonFragment([
            'message' => 'El archivo solicitado no se encuentra disponible'
        ]);
    }

    /**
     * @test
     */
    public function obtengo_protocolos_completos_de_todos_los_juzgados_de_un_año()
    {

        $response = $this->json('POST','api/v1/protocolos', [
            'tipo_descarga' => 'completo',
            'organismo' => 'juzgado',
            'organismo_numero' => 10,
            'organismo_todos' => true,
            'anio' => 2018,
            'mes' => '',
        ]);

        $response->assertSuccessful();

        $response->assertJson([
            'url' => '/completos/juzgados/2018/Juzgados-2018.exe'
        ]);

    }

    /**
     * @test
     */
    public function obtengo_protocolos_completos_de_un_año_de_las_fiscalias()
    {

        $response = $this->json('POST','api/v1/protocolos', [
            'tipo_descarga' => 'completo',
            'organismo' => 'fiscalia',
            'organismo_numero' => '',
            'organismo_todos' => true,
            'anio' => 2018,
            'mes' => '',
        ]);

        $response->assertSuccessful();

        $response->assertJson([
            'url' => '/completos/fiscalia/FiscaliaGeneral2018.exe'
        ]);

    }

    /**
     * @test
     */
    public function si_no_existe_protocolo_completo_de_fiscalia_debe_existir_algun_error()
    {

        $response = $this->json('POST','api/v1/protocolos', [
            'tipo_descarga' => 'completo',
            'organismo' => 'fiscalia',
            'organismo_numero' => '',
            'organismo_todos' => true,
            'anio' => 2008,
            'mes' => '',
        ]);

        $response->assertStatus(500);

        $response->assertJsonFragment([
            'message' => 'El archivo solicitado no se encuentra disponible'
        ]);
    }

    /**
     * @test
     */
    public function obtengo_protocolos_por_sentencia_de_una_sala_en_un_mes_anio_particular()
    {

        $response = $this->json('POST','api/v1/protocolos', [
            'tipo_descarga' => 'sentencia',
            'organismo' => 'sala',
            'organismo_numero' => 10,
            'organismo_todos' => false,
            'anio' => 2017,
            'mes' => '10',
        ]);

        $response->assertSuccessful();

        $response->assertJsonCount(2, 'protocolos');

        $response->assertJsonStructure([
            'protocolos' => [
                '*' => [
                    'url',
                    'file',
                ]
            ]
        ]);

    }

    /**
     * @test
     */
    public function obtengo_protocolos_por_sentencia_de_un_juzgado_menor_a_10_en_un_mes_anio_particular()
    {

        $response = $this->json('POST','api/v1/protocolos', [
            'tipo_descarga' => 'sentencia',
            'organismo' => 'juzgado',
            'organismo_numero' => 1,
            'organismo_todos' => false,
            'anio' => 2018,
            'mes' => 2,
        ]);

        $response->assertSuccessful();

        $response->assertJsonCount(9, 'protocolos');

        $response->assertJsonStructure([
            'protocolos' => [
                '*' => [
                    'url',
                    'file',
                ]
            ]
        ]);

    }

    /**
     * @test
     */
    public function obtengo_protocolos_por_sentencia_de_un_juzgado_mayor_igual_a_10_en_un_mes_anio_particular()
    {

        $response = $this->json('POST','api/v1/protocolos', [
            'tipo_descarga' => 'sentencia',
            'organismo' => 'juzgado',
            'organismo_numero' => 12,
            'organismo_todos' => false,
            'anio' => 2018,
            'mes' => 4,
        ]);

        $response->assertSuccessful();

        $response->assertJsonCount(6, 'protocolos');

        $response->assertJsonStructure([
            'protocolos' => [
                '*' => [
                    'url',
                    'file',
                ]
            ]
        ]);

    }

    /**
     * @test
     */
    public function obtengo_protocolos_por_sentencia_de_fiscalia_en_un_mes_anio_particular()
    {

        $response = $this->json('POST','api/v1/protocolos', [
            'tipo_descarga' => 'sentencia',
            'organismo' => 'fiscalia',
            'organismo_numero' => 12,
            'organismo_todos' => false,
            'anio' => 2018,
            'mes' => 2,
        ]);

        $response->assertSuccessful();

        $response->assertJsonCount(5, 'protocolos');

        $response->assertJsonStructure([
            'protocolos' => [
                '*' => [
                    'url',
                    'file',
                ]
            ]
        ]);

    }

}