Function verifySubscriptionNotExist

verifySubscriptionNotExist(chatService, options, logger, context): Promise<number>
Verify subscription not exist validator
Parameters
- chatService: ChatDataService
  injected service use to handle the chat related operations
  - getOneTopic
  - getSubscriptions
- options: {
      organizationIdField: TargetField;
      topicIdField: TargetField;
      userIdField: TargetField;
  }
  organizationIdField: organization id field
  - topicIdField: topic id field
  - userIdField: user id field
  - organizationIdField: TargetField
  - topicIdField: TargetField
  - userIdField: TargetField
- 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 checks if the given subscription does not exist by applying the following steps in sequence:
- Get the topic by id
- Get the matching subscriptions by organization id, topic id, and user id
- If the subscriptions length is greater than 0, throw an error
Throws
403 NBError Forbidden
- subscription already exists for topic: ${topicId}
Throws
404 NBError Not Found
- topic: ${topicId} not found.
- Defined in src/adapter/default_chat/validators/verify-subscription-not-exist.validator.ts:47