inventree-supplier-panel mdo


last modified: 29 Nov 2023

Create Mouser shopping cart from purchase order

This is a plugin for InvenTree, which translates a purchase order into a Mouser shopping cart. After using this plugin you can directly order the shopping cart on the Mouser WEB page. You need to have a Mouser account and a Mouser API key. The shopping cart will be created in your Mouser account.


For this plugin to work you need to have Mouser as as supplier in your InvenTree data. Suppliers parts must be added to all the parts that you like to buy at Mouser. All Mouser supplier parts need to have the proper SKU. It needs to match the Mouser part number exactly.

For access to the Mouser API you need a Mouser account and a shopping cart API key. You can get this on the Mouser WEB page. Do not mess up with the Mouser search API key. This is different. If the key is properly set up you can find it on the Mouser WEB page here:

Mouser WEB


pip install git+


Mouser Supplier ID

Place here the primary key of the supplier Mouser in your system. You can select from a list of your suppliers.

Supplier API key

Place here you Mouser key for manipulating shopping carts.

Supplier shopping cart key

Each shopping cart on the Mouser page has a designated key. You can have several shopping carts in our account. Each cart has a separate key. The plugin puts your PO into the cart with this key. If you do not have a shopping cart key, leave the field empty. The plugin will create a cart and save the key in the field.


In case you need to authorise a proxy server between your InvenTree server and the internet put the required setting here. The argument for the request is {‘Proxy CON’ : ‘Proxy URL’} for example:

{ 'https' : 'https://user:password@ipaddress:port' }

If you do not need this just leave Proxy CON empty.

What it does

The plugin creates a new panel which is visible on the purchase order details view. This is called Mouser actions. On the panel there are three things:

  • a button that starts the transfer of your PO to Mouser
  • a status bar that shows error messages
  • a table that contains the created Mouser shopping cart.

Mouser Panel

The button initiates the transfer. It takes each element of your PO, takes the SKU of the Mouser supplier part and adds it into your shopping cart. When finished it downloads the shopping cart from the Mouser WEB page and puts the data into the table. Here you see the actual stock at mouser and an OK bubble when the stock is large enough for you order. You also find the actual price as well as the total amount of your order.

All items that have been in the cart before get deleted. The cart always contains only the parts in your PO. SergelLacruz

The plugin also transfers your IPNs (internal part numbers). Mouser reserves a field for such numbers. They show up in your shopping cart as well as on the invoice and even on the labels that they put onto the bags and reels.

Finally the prices that come with the Mouser shopping cart will be copied back into your InvenTree purchase order line items. So you can always see what you payed for the part when you ordered it. This does not modify the price breaks of the supplier part. These are stored with the supplier part. Here we just modify the purchase order.

The panel is only displayed when the supplier of the current purchase order is Mouser. In addition the current user must have change, add or delete access to purchase orders.


Mouser messed up

It can happen that the Mouser shopping cart API gets messed up and no item are added into your cart. Just delete the cart in that case and delete the key in the plugin setting. A new key will be created and usually works.

API keys are global

The API keys and especially the proxy password are user specific and shall not be given to others. Up to now there are no user specific settings in InvenTree. So these keys are global and visible to, at least every admin. All users who use the plugin will have the same keys. We use a team key to solve this.

Other suppliers

Actually this works only for Mouser. Other suppliers like Digikey, Farnell or Buerklin might follow.

Detail section

License: MIT