Function isUserExists

isUserExists(targetField, userService, logger, context): Promise<number>
Is user exists validator
Parameters
- targetField: TargetField
  target field to get the user id
- userService: UserDefaultAdapterAPI
  injected api use to handle the user related operations
  - getUserById
- logger: Logger
  injected logger used to handle the logging
- context: AdapterHandlerContext
  request context [headers, body, params, query].
Returns Promise<number>
200 Status OK
Description
This validator is used to check if the user is exists by applying the following steps in sequence:
1. Get the userId from context
2. Get the user by userId (userAPI.getUserById)
3. Return the status code
Throws
404 NBError Not Found
- user is not exists
- Defined in src/adapter/default/validators/is-user-exists.validator.ts:42

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