In taquito What is the web service being called with what data and end point while originating? I couldn't figure it out, can you please help me ?
The endpoint for all operation types is the same. All operations go to
https://<node-rpc-address>/injection/operation, with a different payload for each type.
If you are looking for help crafting the Taquito payload you can see examples on the taquito docs: https://tezostaquito.io/docs/originate
If you are looking to understand the RPC schema, you can check the openAPI spec for the simulation RPC, which lists all the possible operation types. Go here: https://gitlab.com/tezos/tezos/-/blob/master/docs/api/hangzhou-openapi.json and scroll down to
helpers/scripts/run_operation. Expand it and expand the schema:
There are also some other protocol specific OPEnAPi's if you are interested, the root link to all of them is here: https://tezos.gitlab.io/api/openapi.html