How to get coin id's when using RPC send_transaction


I have been trying to create a payment service with the CHIA RPC API , and have stuck at an issue , while trying to send a transaction using the rpc endpoint send_transaction , the transaction_id returned by the api is no where to be found on the explorers , I believe it is due to the face that explorers show coinid’s? and if yes how can i find out the correct coin_id to search on the explorers through the rpc api.