Tool：
dashboard dont have function of mnemonic,we need tool to use POST request,such as curl_ or _postman.
Acquire corresponding mnemonic
post request for bytomd：/create-key
{ “alias”: “create_key_test”,
“password”: “createkeytest”,
“language”: “en” }
{ “alias”: “create_key_test”,
“password”: “createkeytest”,
“language”: “en” }
we can see xpub and mnemonic in response
because you modify the source code，and added printing information，bytomd command line to print corresponding xprv and xpub
For example，here is a xprv：
50db5bfe21b08462972eadbce08ec92d078a45fa7a280d175a823f9e457faf447d1f501b69f895b830138fabc6f91e2b3b3c8df26642a34be4af27886b9134dc corresponding mnemonic： pudding room business river pattern box snap merit unfold speak hat task start post request/create-key
{ “alias”: “nnemonic_test”,
“password”: “nnemonicnnemonic”,
“mnemonic”: “pudding room business river pattern box snap merit unfold speak hat task”,
“language”: “en” } return：
bytomd output
we can see the recovered xprv is similiar to former xprv，verify successfully
you can also see recovered private key in dashboard
