Above example replaces previous records and adds just D ( A , B and C are gone)
I know I can use “records”: [A, B, C, D] but let’s presume I don’t know what currently is stored in the RRSet, so I would like to use REST API command to add one element to the set, without affecting its previous members.
Our REST API currently does not support addressing individual records (just record sets).
The main reason for this is that, if you wanted to delete or modify a particular record from a set, then what should be the URL path that identifies that record? It’s not easily possible to encode record values as part of the URL. Alternatively, we could introduce IDs (as we have for API tokens, for example), but we’re not sure this is easy enough so that it actually will be used.
There are other decisions to be made, such as: what if a record is added which is already present in the set? Is this an error, or silently accepted?
If that is an option for your use case, look into the various API clients out there. I know of at least one that does the “read, modify, write” for you:
By the way, the same goes for removing a single record from an existing set, should you require this as well.
