API Bulk read and write

API Bulk read and write

HI,
My database have some problems due to wrong formats in some fields and lost of datas while testing deluge scripts :-(

As it concerns "Contacts" and as they don't have email adresses for most of them, I don't have anykey to update from a csv. Thus, I think the only way is to buk read the datas and then to bulk write them.

I read the online help (https://www.zoho.com/crm/developer/docs/api/bulk-read/create-job.html) but as I don't know anything about APIs I can't manage to run it. Is there any full guide somewhere that may help or is there someone that could help me with the full process.

I guess I have to use (ou have) a particular environnment or a specfic tool. I tride to do something with API REQUEST.io but did not understand really what I was doing.


Many thanks in advance to all of you.

Emmanuel