Only one receiver as a string

[pitschi]

Hi, I am using a Synology NAS box. I have the cli container running on the box and can interact with it.

That box has another feature where I can create a connection to "SMS" services and even define new SMS services the box should use. It can talk to them via REST. Unfortunately they are very limited how I can define what I want to send and how to format it.

My problem is, that I am not able to create a receivers array in json. The Synology interface only accepts one phone number as a receiver and therefore creates something like {... "receivers":""} instead of [""]. So it is a string and not an array. I therefore get the error:
ERRO[1394] json: cannot unmarshal string into Go struct field SendMessageV2.recipients of type []string

Would it be possible to have a "receiver" and "receivers" and the first only accepts a string instead of an array?

Thanks for the great work.