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Redis – How to preserve request data Laravel Lumen through the lifetime of a request?

I am using Lumen to build an API and I am trying to figure out what the best way is to keep data in memory for the entire duration of a request. The idea is to avoid writing to a database or using something like Redis or Memcached. So, basically, I want to create a global variable that I can manipulate along the way until the http action is complete and then it can disappear from memory.

For example, if I send a POST request with a body to my /api/v1/postme route, I want to accept the POST request and make another call out to another service to retrieve some data. I want to take that data and merge it with the original data from the POST request. I want to then take that newly merged data and send it as the response after some more translations.

I have read in some posts online that one can use the app config variables in the .env file as a temporary store of data within memory, but I was wondering if there was a different or possibly better way to accomplish this.

I read through the Laravel/Lumen documentation and it seems that I could be writing to the Lumen cache but I think that would result in making a database connection, which is not what I am looking for.

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2

Answers


  1. 0

    If you want to use the config module of lumen follow this.

    When request arrives, hits myfunc

    controller.php

        public function myfunc(Request $request){
        app('config')->set('someuniquekey', $request);
        // call some other api
        $client = new GuzzleHttpClient(..);
        $response = $client->post(..);


        //retrive the value stored in config
        $request= config('someuniquekey');

        //merge $request and $response


        //This can be accessed in class method/ helper function too
        $this->func2();
        func3();
    }

    private function func2(){
        $request= config('someuniquekey'); // WORKS
    }

    helpers.php

        function func3(){
        $request= config('someuniquekey'); // WORKS
    }
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  2. 0

    You can have it like so

    # Store it in request, for that run
request()->request->add(['your_param'=>'yourvalue']);

# Then access it from anywhere using
request()->get('your_param');

    That’s a pretty simple approach

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