I have couple of questions, please clarify my doubt on it.
1. In Bitcoin core we used to call bitcoin-cli getwalletinfo through command line, and through json rpc curl request curl --user myusername --data-binary '{"jsonrpc": "1.0", "id":"curltest", "method": "getwalletinfo", "params": [] }' -H 'content-type: text/plain;' http://127.0.0.1:8332/. Do we have same thing in Armory, if let me know some example of it.
1. In Bitcoin core we used to call bitcoin-cli getwalletinfo through command line, and through json rpc curl request curl --user myusername --data-binary '{"jsonrpc": "1.0", "id":"curltest", "method": "getwalletinfo", "params": [] }' -H 'content-type: text/plain;' http://127.0.0.1:8332/. Do we have same thing in Armory, if let me know some example of it.
With armoryd, all calls assume the context that a current wallet is selected. To get data from other wallets, you need to select the relevant one. The first wallet armoryd loads is set as the default one.
There's a somewhat large armoryd example you can find here:
https://github.com/goatpig/BitcoinArmory/blob/master/webshop/server.py
Unfortunately I don't know how much of it still works, as it was written in 2014.
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2. Can we have armory.conf file just like bitcoin.conf to have json rpc username and password in .armory/ folder
It would be armoryd.conf
armoryd rpc got started, just to cross check will paste the log, let me know is that fine.