what is BCOIN_API_KEY? or how I can get the BCOIN_API_KEY? about bcoin

[chjj]

To set an api key, either set api-key in your ~/.bcoin/bcoin.conf (sample here), or you can run bcoin with $ bcoin --api-key=foo.

If you don't pass in an api key, bcoin randomly generates one for you and will report it in the logs on boot.

If you're on a safe subnet or not accepting remote connections, you can pass --no-auth for easy testing without an api key.

edit: The api key itself is Basic Auth. The username can be anything (bitcoinrpc for example), the password must be the api key.

To hit the api with bcoin-cli, you can run $ bcoin cli wallet balance --api-key=foo. If your api key is in your config file, you don't need to pass it in as an arg.

An env variable will also work $ BCOIN_API_KEY=foo bcoin rpc getblockchaininfo.

Tip: If you're syncing the chain for the first time. Passing --use-checkpoints and --coin-cache will speed up the sync dramatically.