This implementation obviously lacks a lot of things, and there are a lot of TODOs. However, there are already a lot of questions I'd rather get answered soon, so I figured it's much easier to do the implementation in steps.
I wrote down all breaking changes, suggested changes, and new additions with comments (TODO and Note).
In a follow-up PR I will:
Add the remaining/missing models
Make the workflows handle all interactions between the different models/modules
Add integration tests
**What**
- Remove services that do not have any custom business and replace them with a simple interfaces
- Abstract module service provide the following base implementation
- retrieve
- list
- listAndCount
- delete
- softDelete
- restore
The above methods are created for the main model and also for each other models for which a config is provided
all method such as list, listAndCount, delete, softDelete and restore are pluralized with the model it refers to
**Migration**
- [x] product
- [x] pricing
- [x] promotion
- [x] cart
- [x] auth
- [x] customer
- [x] payment
- [x] Sales channel
- [x] Workflow-*
**Usage**
**Module**
The module service can now extend the ` ModulesSdkUtils.abstractModuleServiceFactory` which returns a class with the default implementation for each method and each model following the standard naming convention mentioned above.
This factory have 3 template arguments being the container, the main model DTO and an object representing the other model with a config object that contains at list the DTO and optionally a singular and plural property in case it needs to be set manually. It looks like the following:
```ts
export default class PricingModuleService</* ... */>
extends ModulesSdkUtils.abstractModuleServiceFactory<
InjectedDependencies,
PricingTypes.PriceSetDTO,
{
Currency: { dto: PricingTypes.CurrencyDTO }
MoneyAmount: { dto: PricingTypes.MoneyAmountDTO }
PriceSetMoneyAmount: { dto: PricingTypes.PriceSetMoneyAmountDTO }
PriceSetMoneyAmountRules: {
dto: PricingTypes.PriceSetMoneyAmountRulesDTO
}
PriceRule: { dto: PricingTypes.PriceRuleDTO }
RuleType: { dto: PricingTypes.RuleTypeDTO }
PriceList: { dto: PricingTypes.PriceListDTO }
PriceListRule: { dto: PricingTypes.PriceListRuleDTO }
}
>(PriceSet, generateMethodForModels, entityNameToLinkableKeysMap)
implements PricingTypes.IPricingModuleService
{
// ...
}
```
In the above, the singular and plural can be inferred as there is no tricky naming. Also, the default implementation does not remove the fact that you need to provides all the overloads etc in your module service interface. The above will provide a default implementation following the interface `AbstractModuleService` which is also auto generated, hence you will have the following methods available:
**for the main model**
- list
- retrieve
- listAndCount
- delete
- softDelete
- restore
**for the other models**
- list**MyModels**
- retrieve**MyModel**
- listAndCount**MyModels**
- delete**MyModels**
- softDelete**MyModels**
- restore**MyModels**
**Internal module service**
The internal module service can now extend `ModulesSdkUtils.internalModuleServiceFactory` which takes only one template argument which is the container type.
All internal services provides a default implementation for all retrieve, list, listAndCount, create, update, delete, softDelete, restore methods which follow the following interface `ModulesSdkTypes.InternalModuleService`:
```ts
export interface InternalModuleService<
TEntity extends {},
TContainer extends object = object
> {
get __container__(): TContainer
retrieve(
idOrObject: string,
config?: FindConfig<any>,
sharedContext?: Context
): Promise<TEntity>
retrieve(
idOrObject: object,
config?: FindConfig<any>,
sharedContext?: Context
): Promise<TEntity>
list(
filters?: FilterQuery<any> | BaseFilterable<FilterQuery<any>>,
config?: FindConfig<any>,
sharedContext?: Context
): Promise<TEntity[]>
listAndCount(
filters?: FilterQuery<any> | BaseFilterable<FilterQuery<any>>,
config?: FindConfig<any>,
sharedContext?: Context
): Promise<[TEntity[], number]>
create(data: any[], sharedContext?: Context): Promise<TEntity[]>
create(data: any, sharedContext?: Context): Promise<TEntity>
update(data: any[], sharedContext?: Context): Promise<TEntity[]>
update(data: any, sharedContext?: Context): Promise<TEntity>
update(
selectorAndData: {
selector: FilterQuery<any> | BaseFilterable<FilterQuery<any>>
data: any
},
sharedContext?: Context
): Promise<TEntity[]>
update(
selectorAndData: {
selector: FilterQuery<any> | BaseFilterable<FilterQuery<any>>
data: any
}[],
sharedContext?: Context
): Promise<TEntity[]>
delete(idOrSelector: string, sharedContext?: Context): Promise<void>
delete(idOrSelector: string[], sharedContext?: Context): Promise<void>
delete(idOrSelector: object, sharedContext?: Context): Promise<void>
delete(idOrSelector: object[], sharedContext?: Context): Promise<void>
delete(
idOrSelector: {
selector: FilterQuery<any> | BaseFilterable<FilterQuery<any>>
},
sharedContext?: Context
): Promise<void>
softDelete(
idsOrFilter: string[] | InternalFilterQuery,
sharedContext?: Context
): Promise<[TEntity[], Record<string, unknown[]>]>
restore(
idsOrFilter: string[] | InternalFilterQuery,
sharedContext?: Context
): Promise<[TEntity[], Record<string, unknown[]>]>
upsert(data: any[], sharedContext?: Context): Promise<TEntity[]>
upsert(data: any, sharedContext?: Context): Promise<TEntity>
}
```
When a service is auto generated you can use that interface to type your class property representing the expected internal service.
**Repositories**
The repositories can now extend `DALUtils.mikroOrmBaseRepositoryFactory` which takes one template argument being the entity or the template entity and provides all the default implementation. If the repository is auto generated you can type it using the `RepositoryService` interface. Here is the new interface typings.
```ts
export interface RepositoryService<T = any> extends BaseRepositoryService<T> {
find(options?: FindOptions<T>, context?: Context): Promise<T[]>
findAndCount(
options?: FindOptions<T>,
context?: Context
): Promise<[T[], number]>
create(data: any[], context?: Context): Promise<T[]>
// Becareful here, if you have a custom internal service, the update data should never be the entity otherwise
// both entity and update will point to the same ref and create issues with mikro orm
update(data: { entity; update }[], context?: Context): Promise<T[]>
delete(
idsOrPKs: FilterQuery<T> & BaseFilterable<FilterQuery<T>>,
context?: Context
): Promise<void>
/**
* Soft delete entities and cascade to related entities if configured.
*
* @param idsOrFilter
* @param context
*
* @returns [T[], Record<string, string[]>] the second value being the map of the entity names and ids that were soft deleted
*/
softDelete(
idsOrFilter: string[] | InternalFilterQuery,
context?: Context
): Promise<[T[], Record<string, unknown[]>]>
restore(
idsOrFilter: string[] | InternalFilterQuery,
context?: Context
): Promise<[T[], Record<string, unknown[]>]>
upsert(data: any[], context?: Context): Promise<T[]>
}
```
What:
- When calling a module's method inside a Local Workflow the MedusaContext is passed as the last argument to the method if not provided
- Add `requestId` to req
- A couple of fixes on Remote Joiner and the data fetcher for internal services
Why:
- The context used to initialize the workflow has to be shared with all modules. properties like transactionId will be used to emit events and requestId to trace logs for example.
**What**
- Allow to create step that can be configured to have a max retry
- Step end retry mechanism on permanent failure
Also added an API to override a step configuration from within the createWorkflow
```ts
const step = createStep({ name: "step", maxRetries: 3 }, async (_, context) => {
return new StepResponse({ output: "output" })
})
const workflow = createWorkflow("workflow", function () {
const res = step().config({ maxRetries: 5 }) // This will override the original maxRetries of 3
})
```
**NOTE**
We can maybe find another name than config on the step workflow data to override the step config.
**Why**
- We have some workflow-like flows in @medusajs/medusa. These should be moved over to the workflows package.
- Inventory Items <> Variant currently assume a 1-1 mapping. There should be support for a many-to-many mapping.
**What**
- PR introduces a feature flag for supporting many-to-many mappings for inventory and variants.
- Deletes legacy transaction handler in @medusajs/medusa.
- Adjusts existing createInventoryItems handler to remove dependency on variant data.
**Unkowns**
~~1. Couldn't find an existing test for the CreateProduct workflow. It should be tested that this still works as expected.~~
2. Have removed transaction managers as we should move to handling consistency through orchestration tooling. Are we ready for that?
**What**
Integration tests to validate the workflow compensation.
Also, fix the transaction state when the workflow is compensating and some steps does not have any compensation
