ZHTLC Coin Methods

ZHTLC coins, like Pirate (ARRR) and the test coin ZOMBIE take a little longer to enable, and use a new two step method to enable. Activation can take a little while the first time, as we need to download some block cache data, and build a wallet database. Subsequent enabling will be faster, but still take a bit longer than other coins. The second step for activation is optional, but allows us to check the status of the activation process.

To withdraw ZHTLC coins, you need to use the task::withdraw methods:

• Generate a transaction with task::withdraw::init
• Query its status with task::withdraw::status
• Cancel generating the transaction with task::withdraw::cancel

task_enable_z_coin_init

TIP

To enable Z coins you also need to install some Zcash Params (opens new window)

Arguments

Structure	Type	Description
ticker	string	Ticker of coin to activate
activation_params	object	Contains details required for activation as explained below
activation_params.required_confirmations	integer	Block confirmations to wait for transactions when doing a swap. Optional, defaults to 3. Overrides value if set in coins file.
activation_params.requires_notarization	boolean	For dPoW (opens new window) protected coins, a true value will wait for transactions to be notarised when doing swaps. Optional, defaults to false. Overrides value if set in coins file.
activation_params.mode.rpc	string	Set as Light to use external electrum & lightwallet_d servers or Native to use local block chain data. If native, the rpc_data fields below are not required.
activation_params.mode.rpc_data	list of objects	Contains details about servers to be used for Light mode operation.
..rpc_data.light_wallet_d_servers	list of strings	Urls which are hosting lightwallet_d servers
..rpc_data.electrum_servers	list of objects	Contains additional details about a coins electrum servers.
...electrum_servers.protocol	string	Transport protocol used by Komodo DeFi Framework to connect to the electrum server (TCP or SSL). Optional, defaults to TCP
...electrum_servers.url	string	The URL and port of an electrum server.
...electrum_servers.disable_cert_verification	boolean	If true, this disables server SSL/TLS certificate verification (e.g. to use self-signed certificate). Optional, defaults to false Use at your own risk!
activation_params.zcash_params_path	string	Path to folder containing Zcash parameters (opens new window). Optional, defaults to standard location as defined in this guide (opens new window)
activation_params.scan_blocks_per_iteration	integer	Sets the number of scanned blocks per iteration during BuildingWalletDb state. Optional, default value is 1000.
activation_params.scan_interval_ms	integer	Sets the interval in milliseconds between iterations of BuildingWalletDb state. Optional, default value is 0.

TIP

Using a smaller scan_blocks_per_iteration and larger scan_interval_ms, will reduce the average CPU load during Z coin activation (at the cost of a longer activation time). These optional fields are recommended when developing for iOS, where a high CPU load may kill the activation process. Android & desktop operating systems do not appear to have any problems with high CPU load during Z coin activation.

Response

Structure	Type	Description
task_id	integer	An identifying number which is used to query task status.

📌 Examples

Command

#!/bin/bash
source userpass
curl --url "http://127.0.0.1:7783" --data "
{
    \"userpass\": \"$userpass\",
    \"method\": \"task::enable_z_coin::init\",
    \"mmrpc\": \"2.0\",
    \"params\": {
        \"ticker\": \"ZOMBIE\",
        \"activation_params\": {
            \"mode\": {
                \"rpc\": \"Light\",
                \"rpc_data\": {
                    \"electrum_servers\": [{\"url\":\"zombie.sirseven.me:10033\"}, {\"url\":\"zombie.dragonhound.info:10033\"}],
                    \"light_wallet_d_servers\": [\"http://zombie.sirseven.me:443\", \"http://zombie.dragonhound.info:443\"]
                }
            },
            \"zcash_params_path\": \"/home/username/path_to/.zcash-params\",
            \"scan_blocks_per_iteration\": 100,
            \"scan_interval_ms\": 200
        }
    }
}"
echo

Response

{
  "mmrpc": "2.0",
  "result": {
    "task_id": 0
  },
  "id": null
}

task_enable_z_coin_status

After initiating z coin enabling, you can use the task_id to check progress.

Arguments

Parameter	Type	Description
task_id	integer	The identifying number returned when initiating the initialisation process.
forget_if_finished	boolean	If false, will return final response for completed tasks. Optional, defaults to true

Response

Structure	Type	Description
status	string	A short indication of how the enabling is progressing.
details	object	Depending on the state of enabling progress, this will contain different information as shown in the responses below.

📌 Examples

Command

#!/bin/bash
source userpass
curl --url "http://127.0.0.1:7783" --data "
{
    \"userpass\": \"${userpass}\",
    \"method\": \"task::enable_z_coin::status\",
    \"mmrpc\": \"2.0\",
    \"params\": {
        \"task_id\": TASK_ID,
        \"forget_if_finished\": false
    }
}"
echo

Response (ActivatingCoin - enabling has started)

{
  "mmrpc": "2.0",
  "result": {
    "status": "InProgress",
    "details": "ActivatingCoin"
  },
  "id": null
}

Response (UpdatingBlocksCache)

{
  "mmrpc": "2.0",
  "result": {
    "status": "InProgress",
    "details": {
      "UpdatingBlocksCache": {
        "current_scanned_block": 265930,
        "latest_block": 269656
      }
    }
  },
  "id": null
}

Response (BuildingWalletDb)

{
  "mmrpc": "2.0",
  "result": {
    "status": "InProgress",
    "details": {
      "BuildingWalletDb": {
        "current_scanned_block": 265311,
        "latest_block": 269656
      }
    }
  },
  "id": null
}

Response (Enabling complete)

{
  "mmrpc": "2.0",
  "result": {
    "status": "Ok",
    "details": {
      "ticker": "ZOMBIE",
      "current_block": 269657,
      "wallet_balance": {
        "wallet_type": "Iguana",
        "address": "zs1e3puxpnal8ljjrqlxv4jctlyndxnm5a3mj5rarjvp0qv72hmm9caduxk9asu9kyc6erfx4zsauj",
        "balance": {
          "spendable": "29.99989008",
          "unspendable": "0"
        }
      }
    }
  },
  "id": null
}

Response (no Zcash Params)

{
  "mmrpc": "2.0",
  "result": {
    "status": "Error",
    "details": {
      "error": "Error on platform coin ZOMBIE creation: ZCashParamsNotFound",
      "error_path": "lib.z_coin_activation.z_coin",
      "error_trace": "lib:103] z_coin_activation:192] z_coin:761]",
      "error_type": "CoinCreationError",
      "error_data": {
        "ticker": "ZOMBIE",
        "error": "ZCashParamsNotFound"
      }
    }
  },
  "id": null
}

Response (error - no such task)

You'll see this if the task number does not exist, or the task has already completed.

{
  "mmrpc": "2.0",
  "error": "No such task '1'",
  "error_path": "init_standalone_coin",
  "error_trace": "init_standalone_coin:119]",
  "error_type": "NoSuchTask",
  "error_data": 1,
  "id": null
}

task_enable_z_coin_cancel

If you want to cancel the enabling process before it has completed, you can use this method.

Arguments

Structure	Type	Description
task_id	integer	The identifying number returned when initiating the enabling process.

Response

Structure	Type	Description
result	string	Indicates task cancellation was succesful.
error	string	An error message to explain what went wrong.
error_path	string	An indicator of the class or function which reurned the error.
error_trace	string	An indicator of where in the source code the error was thrown.
error_type	string	An enumerated value for the returned error.
error_data	string	The input task ID which resulted in the error.

📌 Examples

Command

#!/bin/bash
source userpass
curl --url "http://127.0.0.1:7783" --data "
{
    \"userpass\": \"${userpass}\",
    \"method\": \"task::enable_z_coin::cancel\",
    \"mmrpc\": \"2.0\",
    \"params\": {
        \"task_id\": TASK_ID
    }
}"
echo

Response (success)

{
  "mmrpc": "2.0",
  "result": "success",
  "id": null
}

Response (success - already finished)

{
  "mmrpc": "2.0",
  "error": "Task is finished already",
  "error_path": "init_standalone_coin.manager",
  "error_trace": "init_standalone_coin:144] manager:101]",
  "error_type": "TaskFinished",
  "error_data": 0,
  "id": null
}

Response (error - no such task)

{
  "mmrpc": "2.0",
  "error": "No such task '1'",
  "error_path": "init_standalone_coin",
  "error_trace": "init_standalone_coin:119]",
  "error_type": "NoSuchTask",
  "error_data": 1,
  "id": null
}

z_coin_tx_history

To get the transaction history for ZHTLC coins, you need to use this special method - the v2 my_tx_history and legacy my_tx_history methods are not compatible with ZHTLC coins. Currently trasaction memos will not be displayed in output, though they can be added to outgoing transactions with the task::withdraw methods.

Arguments

Structure	Type	Description
coin	string	Ticker of the coin to get history for.
limit	integer	Optional. Limits the number of returned transactions. Defaults to 10. Ignored if max = true.
paging_options.FromId	string	Optional. Komodo DeFi Framework will skip records until it reaches this ID, skipping the from_id as well; track the internal_id of the last displayed transaction to find the value of this field for the next page
paging_options.PageNumber	integer	Optional. Komodo DeFi Framework will return limit swaps from the selected page. Ignored if FromId .

Response

Structure	Type	Description
transactions	array of objects	transactions data
from_id	string	the from_id specified in the request; this value is null if from_id was not set
skipped	number	the number of skipped records (i.e. the position of from_id in the list + 1); this value is 0 if from_id was not set
limit	number	the limit that was set in the request; note that the actual number of transactions can differ from the specified limit (e.g. on the last page)
total	number	the total number of transactions available
page_number	number	the page_number that was set in the request
total_pages	number	total pages available with the selected limit
current_block	number	the number of the latest block of coin blockchain
sync_status	object	provides the information that helps to track the progress of transaction history preloading at background
sync_status.state	string	current state of sync; possible values: NotEnabled, NotStarted, InProgress, Error, Finished
sync_status.additional_info	object	additional info that helps to track the progress; present for InProgress and Error states only
sync_status.additional_info.blocks_left	number	present for ETH/ERC20 coins only; displays the number of blocks left to be processed for InProgress state
sync_status.additional_info.transactions_left	number	present for UTXO coins only; displays the number of transactions left to be processed for InProgress state
sync_status.additional_info.code	number	displays the error code for Error state
sync_status.additional_info.message	number	displays the error message for Error state

📌 Examples

Command

#!/bin/bash
source userpass
curl --url "http://127.0.0.1:7783" --data "{
  \"userpass\": \"$userpass\",
  \"method\": \"z_coin_tx_history\",
  \"mmrpc\": \"2.0\",
  \"params\": {
    \"coin\": \"ARRR\",
    \"limit\": 2,
    \"paging_options\": {
      \"PageNumber\": 2
    }
  }
}"
echo ""

Response (success)

{
  "mmrpc": "2.0",
  "result": {
    "coin": "ARRR",
    "target": {
      "type": "iguana"
    },
    "current_block": 2228711,
    "transactions": [
      {
        "tx_hash": "b7e8307778d7d61ebb2ebc7a130661ef6fbeb66ee5d15d0f84a3bfce3ebad5a1",
        "from": [
          "zs1e3puxpnal8ljjrqlxv4jctlyndxnm5a3mj5rarjvp0qv72hmm9caduxk9asu9kyc6erfx4zsauj"
        ],
        "to": [
          "zs1e3puxpnal8ljjrqlxv4jctlyndxnm5a3mj5rarjvp0qv72hmm9caduxk9asu9kyc6erfx4zsauj"
        ],
        "spent_by_me": "17.65495855",
        "received_by_me": "17.65494855",
        "my_balance_change": "-0.00001000",
        "block_height": 2224011,
        "confirmations": 4701,
        "timestamp": 1673018341,
        "transaction_fee": "0.00001",
        "coin": "ARRR",
        "internal_id": 26
      },
      {
        "tx_hash": "967deb0a8cbce0c1f0ba20deee7a955e1a82bd1173bb3dd15cc95f03738ca65c",
        "from": [
          "zs1e3puxpnal8ljjrqlxv4jctlyndxnm5a3mj5rarjvp0qv72hmm9caduxk9asu9kyc6erfx4zsauj"
        ],
        "to": [
          "zs10ah73fpudlecg678jmqjdyeym5fgccvjytqry533rq2w04dekenxe8ekt349s3lelmlss3j4u9q",
          "zs1e3puxpnal8ljjrqlxv4jctlyndxnm5a3mj5rarjvp0qv72hmm9caduxk9asu9kyc6erfx4zsauj"
        ],
        "spent_by_me": "20.65496855",
        "received_by_me": "17.65495855",
        "my_balance_change": "-3.00001000",
        "block_height": 2196913,
        "confirmations": 31799,
        "timestamp": 1671100306,
        "transaction_fee": "0.00001",
        "coin": "ARRR",
        "internal_id": 25
      }
    ],
    "sync_status": {
      "state": "Finished"
    },
    "limit": 2,
    "skipped": 2,
    "total": 28,
    "total_pages": 14,
    "paging_options": {
      "PageNumber": 2
    }
  },
  "id": null
}

Response (error - coin not supported)

{
  "mmrpc": "2.0",
  "error": "TKL",
  "error_path": "my_tx_history_v2",
  "error_trace": "my_tx_history_v2:523]",
  "error_type": "NotSupportedFor",
  "error_data": "TKL",
  "id": null
}

Response (error - coin not active)

{
  "mmrpc": "2.0",
  "error": "ZOMBIE",
  "error_path": "my_tx_history_v2.lp_coins",
  "error_trace": "my_tx_history_v2:521] lp_coins:2849]",
  "error_type": "CoinIsNotActive",
  "error_data": "ZOMBIE",
  "id": null
}