How to upload journal transaction attachment?

[daniel_norman_mynt]

I am trying to figure out how to upload a journal transaction attachment, but am unable to figure out how. As far as I know I should create the journal transaction by calling endpoint /controller/api/v2/journaltransaction (POST), and then upload the file by calling /controller/api/v2/journaltransaction/module/{module}/{journalTransactionNumber}/attachment (POST).

Problem is, the first endpoint does not return the journalTransactionNumber I need for the second one. Secondly, the Open API specification does not describe the expected request object. Am I missing something?

[daniel_norman_mynt]

Thank you, was able to upload the attachment now. 👌

[Magnus Johnsen · Accepted solution]

Hi,

The ID of the recently created document is returned in the location header on creation.

We have an example of how to implement reading the documentID in C# here:

How to read recently created object ID from Visma.Net API Response Headers in C# ?

The attachment itself you send as form-data , we have an example of how to do it in C# here:

How to POST an attachment via Visma.net API in C# ?