API call Board->Invite Member to Board via email

[Dmitrii]

Hello to all! Thank you trello team for fantastic product.
Me and my friend qa students, recently we started to explore Trello API, by the way it is one of the best API fully described. We even write small testing poduct (java+TestNG+Cucumber+Allure). So far everithing went well but.

Theris one API call that is not behave as described in API. 
Boards -> Invite Member to Board via email
It looks that query parameter 'type' is not being recognized by server and it returnes bad member type and the user with mentioned email is not being added to a board. 

Or maybe we just use it wrong. )))

[Dmitrii]

Thank you! We use free version. 

If to send API call (HTTP PUT) with query parameter as 'type' and with  value 'admin' or 'observer' we got back Bad member type. For value 'normal' it is work as expected.

We play a little bit with that request, it looks that if instead of 'type' send 'memberType' than for all the values it works as 'normal'.

In any way, the idea was to test an API call when you add member to a board with different values of query parameter 'type'. And since the request was sent with value for example admin we expected the member being added as admin. But there are as I can see now different logic of that API call for free versio and paid.
Have a nice weekend.

[Rasmus Wulff Jensen]

I've just tested in more detail, and I think I know what's going on here:

Trello Version	Add Existing Member to board	Add Member to board via Email Invite
Free	Observer = ⛔ Normal = ✅ Admin = ✅	Observer = ⛔ Normal = ✅ Admin = ⛔
Paid	Observer = ✅ Normal = ✅ Admin = ✅	Observer = ✅ Normal = ✅ Admin = ⛔

If you change your query param to 'memberType' instead on 'type', you are essentially just leaving out the type, and the API default to 'normal', so that is not the solution.

So why the fails?:

• First up, since you use the free version, it makes sense that Observer Fail, as this type is not supported in the Free Edition. In the paid version, it works fine
• The odd one at first is why Admin Fail in Email invite on both Free and Paid, but there is actually a very simple answer... It is just following the logic of Trello itself. If you look at the Trello Interface invite screen, you will see that you can't choose Admin there:
• 
• So you can't choose it either in the API (aka bad member type)... The only way to invite a member to be an admin on a board is to invite them as a normal user and then change their membership type to Admin after the fact (after they have confirmed their email)
• 

So there is no bugs or wrong type in the API. Just the same logic as the Trello Interface

[Rasmus Wulff Jensen]

The possible 'type' value for Member is: "admin", "normal", "observer" (or "ghost" for a member already invited but have not accepted but invalid in this case)

Endpoints

https://api.trello.com/1/boards/{id}/members/{idMember}?type={type}&key=APIKey&token=APIToken

Or

https://api.trello.com/1/boards/{id}/members?email={email}&key=APIKey&token=APIToken

Please note that the calls need to be 'PUT' and not 'POST'

[Daydreamer Mike]

Hi @Dmitrii 

Can you confirm what member type you are trying to add?

It may be that you are trying to invite as observers? If so, observer is not a valid member type for the free Trello subscription and is only available in paid versions.

This is an optional parameter. Does it work if you don't set that?