**What**
- Return the updated/deleted/created entities from the upsert with replace according to the configuration
This will help to emit the events from the product module as it rely on this abstraction in many places
* chore: Move publishable api key tests to HTTP
* chore: Move store tests to HTTP folder
* fix: Add tests for store products, fix several bugs around publishable keys
what:
When creating a variant, we can now create inventory as a part of the product and variants create endpoint.
This applies only to variants where `manage_inventory=true`. 2 cases present itself:
1. When inventory_items are present
- Link an inventory item with required_quantity to the variant
- the inventory item already needs to be present
2. When inventory_items are not present
- A default inventory item will be created
- links the created item to the variant with a default required_quantity
RESOLVES CORE-2220
what:
- adds variant inventory link management endpoints:
```
Link inventory item to variant
POST /products/:id/variants/:vid/inventory-items
Update variant's inventory item link
POST /products/:id/variants/:vid/inventory-items/:iid
Unlink variant's inventory item
DELETE /products/:id/variants/:vid/inventory-items/:iid
```
- a batch endpoint that does the above 3 across variants
```
POST /products/:id/variants/inventory-items
```
**What**
Add support for event emitting in the fulfillment module
**NOTE**
It does not include the review of the events for the abstract module factory if the method is not implemented in the module itself and rely on the default implementation
* fix: skip module loading if mod: false
* fix: don't include disabled modules in config
* add test
* fix: revert changes to module loading in medusaapp
what:
- when inventory_quantity is requested through the API, we calculate the inventory based on sales channels + stock locations and return the total available inventory.
A variant can have multiple inventory items. As an example:
Table: (variant)
- 4 (required_quantity via link) x legs (inventory item)
- 2 x table top
Only if all individual inventory items of a variant are available, do we mark the variant as available as a single unit.
RESOLVES CORE-2187
Remove the old handlers and definitions that does not work anymore or are not used anymore. This legacy was bothering a refactoring we have with @thetutlage
**What**
Update the module resources discovery to account to the source directory to look into.
example:
```ts
user: { resolve: 'user' }
```
The above config will load the resources from the resolved path looking from the node modules
```ts
user: { resolve: './modules/user' }
```
The above config will load the resources from the local directory under dist if not run with ts node and under src otherwise
