Thinkphp6 pipeline mode pipeline use

Reading guide

Look at the use on the network Tp There are very few examples of pipeline mode , It is used to analyze the application scenarios of Middleware in the framework , In fact, the pipeline mode is also very easy to use in business development .
Most of them are found on the Internet Laravel Example , however Laravel In the example of Tp It's impossible , After groping , We finally got it Tp Use

No one discussed the pipeline mode on the official website , And in the Learnku A lot of people discussed , This explains The framework is comparable .

So I searched the source code , from Think Unit test of middleware , Loading process to middleware , Finally found the format here , It looks like this ：

   /** *  Parsing middleware  * @access protected * @param mixed $middleware * @param string $type  Middleware type  * @return array */
    protected function buildMiddleware($middleware, string $type): array
    {
    
        if (is_array($middleware)) {
    
            [$middleware, $params] = $middleware;
        }

        if ($middleware instanceof Closure) {
    
            return [$middleware, $params ?? []];
        }

        if (!is_string($middleware)) {
    
            throw new InvalidArgumentException('The middleware is invalid');
        }

        // Middleware alias check 
        $alias = $this->app->config->get('middleware.alias', []);

        if (isset($alias[$middleware])) {
    
            $middleware = $alias[$middleware];
        }

        if (is_array($middleware)) {
    
            $this->import($middleware, $type);
            return [];
        }

        return [[$middleware, 'handle'], $params ?? []];
    }

It needs to pass handle Method , commonly Laravel And pipelines in other mainstream frameworks are default handle Method , It can't be said that such a design is bad , But at least there must be a default method , Who knows how to write this without documentation .

Get ready

class Test
{
    
    public static function handle($request,$next){
    
        echo ' I'm middleware 1';
        $next($request);

    }

}

class Test2
{
    
    public static function handle($request,$next){
    
        $next($request);
        echo ' I'm middleware 222';
    }


}

class Request
{
    
  

}

Use

        $request = new Request();

        $pips[] = [\app\common\service\order\pipeline\Test::class,'handle'];
        $pips[] = [\app\common\service\order\pipeline\Test2::class,'handle'];

        (new Pipeline())
            ->send($request)
            ->through($pips)
            ->then(function ($e) {
    
                    
            });

Case study

Use in the order scenario
Credit sub application scenarios