say what ID already exists

[pothiers]

The error message that says "instrument with this id already exists." (and presumably for other object types) should say what id already exists.

I could output all the info I sent to the API so that user which would include that ID. But would be unnecessarily verbose. (I actually do it now, and do find it verbose).

It would be great if there were an "overwrite" flag or equivalent in the API that would make the call silent when it already exists and simply replace the value.

[jnation3406]

The error message is an automatic one from the rest API I think. I'll look into adding the ability to "overwrite" if it exists, basically treating it as a PATCH instead of a POST if the id exists...

[pothiers]

Treat POST like PATCH sounds a great idea (if it is easy enough)!