SendInBlue API .NET6 Core Razor Pages in C# AddContactToList catching and throwing error

Question

I a using the exact code here https://developers.sendinblue.com/reference/addcontacttolist-1 to add a user to a list. It all works, user is created/updated (if exists) then the user is added to the list. However, when adding to the list it throws an error.

Error calling AddContactToList: {"code":"invalid_parameter","message":"Contact already in list and/or does not exist"}

Their code shows a display result in JSON which will never get hit because it throws at the Add method.

Armin

Answer 1

The error is straight-forward. The contact is already in the list and the API enforces uniqueness.

You can get the contacts that are already in the list via getContactsFromList

https://developers.sendinblue.com/reference/getcontactsfromlist

or contact details via getContactInfo:

https://developers.sendinblue.com/reference/getcontactinfo-1

So, you will need to check whether the contact is already in the list. If so, then don't add it. Otherwise, you can add it without problems.

Ekaterinburg

Ok, was trying not to get the list and hoping for a valid error to present. Guess I will ignore that one. – Armin

@Armin you can decide to not handle this error, but you will need to make sure that in your catch clause you handle other errors, so, it is advisable to change Exception e to have a more specific type, so other exceptions will not be ignored. – Ekaterinburg