[Vuejs]-Retrieve forign key first value in laravel

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The get() method returns an instance of Illuminate\Database\Eloquent\Collection so you can use all available methods on Laravel collections.

To get your first image:

$all_product = Product::with('category','image')->get();

foreach ($all_product as $product) {
    $first_image = optional($product->image)->first();

    // do whatever you want with the $first_image
}

The optional() method is used in a case product had no images (i.e $product->images was null).

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try this:

$all_product = App\Product::with(['category','image' => function ($query) {
    $query->first();
}])->get();

see Constraining Eager Loads

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