Intro

I have found a new way to quickly pre order with the help of an app named Postman. Postman is an app used by developers to test APIs but I have found a way to add to cart to these websites using a product ID using this application, which should make it much easier to pre order the Nintendo Switch tomorrow night.

This makes it much faster because after executing the Postman commands, the products should be added to your cart. After that, all you have to do is go to the checkout link for the respective websites (that I will also provide below). This removes all of the delays with actually playing around with the website.

Disclaimer: I have not tried this in a high-demand launch before, so I am not sure how it will work if there's a queue for the website.

I am not going to make a YouTube video but I will write a guide here.

Setting up Postman

Step 1: Setup Postman

1. Download Postman here
2. Download the Postman Interceptor here
3. Create a postman account and login to both the desktop app and the interceptor

Step 2: Setup Interceptor

1. When opening the extension, there are 2 tabs at the top. Click the "Sync Cookies" tab and paste the following. Press enter after each one. https://bestbuy.com https://target.com

   

2. The purpose of interceptor is to sync cookies between your browser and your Postman Application, so products are added to the cart associated with your browser, not a new random cart

Best Buy

1. Login to Bestbuy
2. In Postman, pressing ⌘ + N will open a popup to create a new request. Click on http
3. The request method defaults to GET. Switch it to POST. Paste https://www.bestbuy.com/cart/api/v1/addToCart into the URL box.
4. Below that, there's a series of tabs. Click on body, select raw type, in the dropdown on the right, select JSON. This is where we can add the products we want to add to cart. The format to do this is as follows:

{
    "items": [ // can add as many items as you want in this array
        {
            "skuId": "6470923" // SKU of item 1
        },
        {
            "skuId": "5748618" // SKU of item 2
        } 
    ]
}