Let's play with Feathercoin daemon [linux debian]

looarn

Hi,

We don’t find a lot of documentation about the feathercoin daemon, so here, what I’m into currently. :)

I have follow this guide to install feathercoind on a debian 8 server, so we are here headless using SSH session to manipulate.

First thing first : Launch feathercoind
When you try for the first time to launch it, a message appear saying you need to create a featercoin.conf file

USER@USER:/home/USER/Feathercoin/src# ./feathercoind
Error: To use the "-server" option, you must set a rpcpassword in the configuration file:
/USER/.feathercoin/feathercoin.conf
It is recommended you use the following random password:
rpcuser=SOME_USER
rpcpassword=SOME_PASSWORD
(you do not need to remember this password)
The username and password MUST NOT be the same.
If the file does not exist, create it with owner-readable-only file permissions.
It is also recommended to set alertnotify so you are notified of problems;
for example: alertnotify=echo %s | mail -s "Feathercoin Alert" [email protected]

So you do it :

# nano /USER/.feathercoin/feathercoin.conf

rpcuser=SOME_USER
rpcpassword=SOME_PASSWORD
// you can add the notification if you like
alertnotify=echo %s | mail -s "Feathercoin Alert" [email protected]

Now you are ready to launch it properly.

# ./feathercoind -daemon
Feathercoin server starting

As feathercoind is a deamon it’s running in the background.

So your access to the data gonna be through the feantercoin-cli utility.

# ./feathercoin-cli getinfo
{
    "version" : 90302,
    "protocolversion" : 70003,
    "walletversion" : 60000,
    "balance" : 0.00000000,
    "blocks" : 30397,
    "timeoffset" : -75,
    "connections" : 4,
    "proxy" : "",
    "difficulty" : 122.35060749,
    "testnet" : false,
    "keypoololdest" : 1482588218,
    "keypoolsize" : 101,
    "paytxfee" : 0.00000000,
    "relayfee" : 0.01000000,
    "errors" : ""
}

Hey but the deamon has to sync, so to know which is the last block charged use :

# ./feathercoin-cli getblockcount
30856

Let’s get the hash of this block

#./feathercoin-cli getblockhash 30856
2c58124d4a3db3cd93340e9d9a28a2f76586a73c6970c1800c9b07c6089e7938

To know the date this block has been mined use :

#./feathercoin-cli getblock 2c58124d4a3db3cd93340e9d9a28a2f76586a73c6970c1800c9b07c6089e7938
{
    "hash" : "2c58124d4a3db3cd93340e9d9a28a2f76586a73c6970c1800c9b07c6089e7938",
    "confirmations" : 198998,
    "size" : 1321,
    "height" : 30856,
    "version" : 1,
    "merkleroot" : "8ba91e7c46dcb7607a8efe37c3c4a4cf01e59234ebc1dc3f7fe7a0747dfd055b",
    "tx" : [
        "5f2edc6224d0ae64f7dd7c7eb785cecb22fe1156c62511bf2b582ff0d9f7c355",
        "d50a077a92fda18b4e4e81dd238f51be4f4ddb0df46cfb0dcfec580eb76c40cd",
        "dd77aca1009685843f99bbabde01d3472f9a36d88f841b8de6fa00c63ae6276c",
        "7b46ef188125f06aef65f73e13e872e31397c04663ba5e7f74dfe90c160e8c0b",
        "8228acc24b08933b91f8e4b5f39aa5610134dd6fd410f9fb5ff19bac088a9ae1",
        "857b6060460da32a7472d0c7e73dcdbcb3124ec92e0f8e97ddbca3c18c17b507"
    ],
    "time" : 1367662454,
    "nonce" : 2725055488,
    "bits" : "1c0217a2",
    "difficulty" : 122.35060749,
    "chainwork" : "00000000000000000000000000000000000000000000000000075d9f50a9d523",
    "previousblockhash" : "a76f7c7357f1fb0d2f8e86644994135ea887c713afe656bd233e45505f877209",
    "nextblockhash" : "31fbc762038457d6dee4fda362e083f93a2581790de42502ae5150a402fb156c"
}

So the time is a timestamp, means time in second since 01/01/1970 at 00:00
You can use some cloud tools like http://www.epochconverter.com/ to convert in human date
So the date of our block is : GMT: Sat, 04 May 2013 10:14:14 GMT

So we can deduce the sync time we left : more than 3 years still to sync.

Héhé !

looarn

Now let’s say someone give you a FTC adresse and you’d like to check if this address is valide.

# ./feathercoin-cli validateaddress 6knuNae3rcX7iL8YvWSSGCzvcNpXkhcKSb
{
    "isvalid" : true,
    "address" : "6knuNae3rcX7iL8YvWSSGCzvcNpXkhcKSb",
    "ismine" : false
}

Now we want to know the received FTC of this address :

# ./feathercoin-cli getreceivedbyaddress 6knuNae3rcX7iL8YvWSSGCzvcNpXkhcKSb
0.00000000

Warning this is based on your local blockchain information, so if you are not fully sync this data is incorrect. ;)

To be continued with other command when my blockchain gonna be sync. ;)