Assuming monero-wallet-rpc is running on port 18082 and requires authentication.

Get wallet:

curl -u <user>:<password> --digest http://localhost:18082/json_rpc -d '{"jsonrpc":"2.0","id":"0","mehod":"get_balance","params":{"all_accounts":true}}' -H 'Content-Type: application/json'

You must pass –digest for the auth to work.

Rest of the examples can be found at https://www.getmonero.org/resources/developer-guides/wallet-rpc.html

• Monero 'Fluorine Fermi' (v0.18.3.3-release)

• Resync monero wallet from specific height