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Native token

Now that you have your wallet set up, you will need some native DRK in order to be able to perform transactions, since DRK is used to pay the transaction fees. You can obtain DRK either by successfully mining a block that gets confirmed or by asking for some from the community on darkirc.

If the latter, don’t forget to tell them to add the --half-split flag when they create the transfer, so you get more than one coin to play with. Once your friend has submitted a transaction to the network, it should be in the consensus’ mempool, waiting for inclusion in the next block(s). Depending on your network configuration, confirmation of the blocks could take some time. You’ll have to wait for this to happen. If your drk subscription is running, then after some time your new balance should be in your wallet.

pablo-waiting0

You can check your wallet balance using drk:

drk> wallet balance

 Token ID                                     | Aliases | Balance
----------------------------------------------+---------+---------
 241vANigf1Cy3ytjM1KHXiVECxgxdK4yApddL8KcLssb | DRK     | 20

Creating tokens

On the DarkFi network, we can mint custom tokens with a given supply. To do this, we first need to generate a mint authority keypair, and derive a token ID from it.

Note: The token data shown in the outputs (Token ID, Mint Authority, Token Blind) are placeholders for the data that will be created by you. For the rest of the guide, replace the placeholder token data with the data that you generate.

For this tutorial we will be minting two sets of tokens. For each token we will create the mint authority keypair that sets the token ID and authorizes you to mint the token supply.

We do this by simply executing the following command:

drk> token generate-mint

Successfully imported mint authority for token ID: {TOKEN1}

You can list your mint authorities with:

drk> token list

 Token ID | Aliases | Mint Authority          | Token Blind    | Frozen | Freeze Height
----------+---------+-------------------------+----------------+--------+---------------
 {TOKEN1} | -       | {TOKEN1_MINT_AUTHORITY} | {TOKEN1_BLIND} | false  | -

Now execute the command again to generate the mint authority for a second set of tokens.

drk> token generate-mint

Successfully imported mint authority for token ID: {TOKEN2}

Verify you have two token mint authorities by running:

drk> token list

 Token ID | Aliases | Mint Authority          | Token Blind    | Frozen | Freeze Height
----------+---------+-------------------------+----------------+--------+---------------
 {TOKEN1} | -       | {TOKEN1_MINT_AUTHORITY} | {TOKEN1_BLIND} | false  | -
 {TOKEN2} | -       | {TOKEN2_MINT_AUTHORITY} | {TOKEN2_BLIND} | false  | -

Aliases

To make our life easier, we can create token ID aliases, which we can use instead of the token ID when performing transactions. Multiple aliases per token ID are supported.

The native token alias DRK should already exist, and we can use that to refer to DRK when executing transactions using it.

We can also list all our aliases using:

drk> alias show

 Alias | Token ID
-------+----------------------------------------------
 DRK   | 241vANigf1Cy3ytjM1KHXiVECxgxdK4yApddL8KcLssb

Note: these aliases are local to your machine. When exchanging with other users, always verify that your aliases’ token IDs match.

Now let’s create aliases for the two token IDs generated earlier:

drk> alias add ANON {TOKEN1}

Generating alias ANON for Token: {TOKEN1}
drk> alias add DAWN {TOKEN2}

Generating alias DAWN for Token: {TOKEN2}
drk> alias show

 Alias | Token ID
-------+---------------------------------------------
 ANON  | {TOKEN1}
 DAWN  | {TOKEN2}
 DRK   | 241vANigf1Cy3ytjM1KHXiVECxgxdK4yApddL8KcLss

Mint transaction

Now let’s mint some tokens for ourselves. First grab your wallet address, then create the token mint transaction, and finally - broadcast it:

drk> wallet address

{YOUR_ADDRESS}

By default the transaction will be printed in the terminal. Interactive mode supports UNIX style pipes and exporting/importing to/from files. We can either export a transaction to a file by appending > {tx_file_name}.tx, or broadcast it right away by appending | broadcast. We will broadcast all transactions in the guide, for simplicity.

drk> token mint ANON 42.69 {YOUR_ADDRESS} | broadcast

[mark_tx_spend] Processing transaction: e9ded45928f2e2dbcb4f8365653220a8e2346987dd8b75fe1ffdc401ce0362c2
[mark_tx_spend] Found Money contract in call 0
[mark_tx_spend] Found Money contract in call 1
[mark_tx_spend] Found Money contract in call 2
Broadcasting transaction...
Transaction ID: e9ded45928f2e2dbcb4f8365653220a8e2346987dd8b75fe1ffdc401ce0362c2

Now the transaction should be published to the network, waiting to be included in a block. After the transaction is confirmed, perform the next one:

drk> token mint DAWN 20.0 {YOUR_ADDRESS} | broadcast

[mark_tx_spend] Processing transaction: e404241902ba0a8825cf199b3083bff81cd518ca30928ca1267d5e0008f32277
[mark_tx_spend] Found Money contract in call 0
[mark_tx_spend] Found Money contract in call 1
[mark_tx_spend] Found Money contract in call 2
Broadcasting transaction...
Transaction ID: e404241902ba0a8825cf199b3083bff81cd518ca30928ca1267d5e0008f32277

The transaction is now published to the network. When the transaction is confirmed, your wallet should have your new tokens listed when you run:

drk> wallet balance

 Token ID                                     | Aliases | Balance
----------------------------------------------+---------+-------------
 241vANigf1Cy3ytjM1KHXiVECxgxdK4yApddL8KcLssb | DRK     | 19.98451279
 {TOKEN1}                                     | ANON    | 42.69
 {TOKEN2}                                     | DAWN    | 20

Freeze transaction

We can lock a token’s supply and disallow further mints by executing:

drk> token freeze DAWN | broadcast

[mark_tx_spend] Processing transaction: 138274448ac3af26f253e0a40d0964dc125b99b3c826ba321bcb989cabfb6df6
[mark_tx_spend] Found Money contract in call 0
[mark_tx_spend] Found Money contract in call 1
Broadcasting transaction...
Transaction ID: 138274448ac3af26f253e0a40d0964dc125b99b3c826ba321bcb989cabfb6df6

After the transaction has been confirmed, we will see the token freeze flag set to true, along with the block height it was frozen on:

drk> token list

 Token ID | Aliases | Mint Authority          | Token Blind    | Frozen | Freeze Height
----------+---------+-------------------------+----------------+--------+---------------
 {TOKEN1} | ANON    | {TOKEN1_MINT_AUTHORITY} | {TOKEN1_BLIND} | false  | -
 {TOKEN2} | DAWN    | {TOKEN2_MINT_AUTHORITY} | {TOKEN2_BLIND} | true   | 4