将 json 从 raspberry Pi4 发送到 Laravel 并查看

Question

I need to send a JSON file from a raspberry (programmed in python) to Laravel. Looking on the internet I found this function for python:

https://docs.python-requests.org/en/latest/

but when I go to view the JSON file on Laravel nothing appears.

The code in python is this:

def readFile():
    with open("/home/pi/Desktop/Progetti SIoTD/Bluetooth/device.txt", "r") as file:
        for i in file:
            line, *lines = i.split()
            if line in mac_dict:
                mac_dict[line] += lines
            else:
                mac_dict[line] = lines
    print(mac_dict)
    print("\n")

    json_obj = json.dumps(mac_dict, indent=4)
    with open("/home/pi/Desktop/Progetti SIoTD/Bluetooth/mac_addr.json", "w") as json_file:
        json_file.write(json_obj)

    r = requests.get(ip, data=json_obj, headers=headers)
    print(r.text)

I use this function to read a txt file (containing the various Bluetooth MAC addresses and their respective RSSI values) and then transform it into JSON. Now I wanted to understand how to send it to Laravel and display something

The function in Laravel is this:

<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;

class DictionaryController extends Controller
{
    public function index()
    {
        return view('backend.auth.user.dictionary');
    }

    public function store(Request $request)
    {
        return $request;
    }

    public function show($id)
    {
        //
    }

    public function update(Request $request, $id)
    {
        //
    }

    public function destroy($id)
    {
        //
    }
}

The route in laravel is in the api.php:

Route::get('dictionary', [DictionaryController::class, 'store'])->name('dictionary');

I hope to have explained well and that someone can help me, I am stuck for several days on this. I also need to know how to use php/blade on Laravel to display the JSON file (if it is possible)

Thanks in advance

Answer 1

You could use curl library to send data or files to any type of server. curl on linux server is like a light client side without showing user interface but It is enough to send or receive data whatever is the target. Her is a url example about how to upload a file from your local device to server. https://medium.com/@petehouston/upload-files-with-curl-93064dcccc76#:~:text=To%20upload%20files%20with%20CURL,%2Ddata%E2%80%9D%20to%20the%20request .

Answer 2

I use this function to read a txt file (containing the various Bluetooth MAC addresses and their respective RSSI values) and then transform it into JSON. Now I wanted to understand how to send it to Laravel and display something

I assume that your writing JSON via Python has worked. So, what you're asking is how Laravel can see JSON file.

class DictionaryController extends Controller
{
    public function index()
    {
        $json = file_get_contents('/home/pi/Desktop/Progetti SIoTD/Bluetooth/mac_addr.json');
        return response()->json($json);
    }

    ...

Route :

Route::get('dictionary', [DictionaryController::class, 'index'])->name('dictionary.index');

Or if you want to work with template, you can use:

class DictionaryController extends Controller
{
    public function index()
    {
        $json = '/home/pi/Desktop/Progetti SIoTD/Bluetooth/mac_addr.json';
        $data['macs'] = json_encode($json, true);

        return view('backend.auth.user.dictionary', $data);
    }

    ...

And then you can process it however you want on the Blade.