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ICON is a scalable smart contract enabled blockchain platform with a long-term goal of interoperability between enterprise and public blockchains. Our goal is to Hyperconnect the World, and by combining groundbreaking technology, a strong community, and relentless growth strategies we believe this goal is reachable.

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How to use T-Bears

Command-line Interfaces(CLIs)

Overview

T-Bears has 20 commands, init, start, stop, deploy, clear, test, genconf, console, transfer, txresult, balance, totalsupply, scoreapi, txbyhash, lastblock, blockbyheight, blockbyhash, keystore, sendtx and call.

Usage

usage: tbears [-h] [-v] command ...

tbears v1.1.0 arguments

optional arguments:
  -h, --help     show this help message and exit
  -v, --verbose  Verbose mode

Available commands:
  If you want to see help message of commands, use "tbears command -h"

  command
    start        Start tbears service
    stop         Stop tbears service
    deploy       Deploy the SCORE
    clear        Clear all SCOREs deployed on tbears service
    test         Run the unittest in the SCORE
    init         Initialize tbears project
    samples      This command has been deprecated since v1.1.0
    genconf      Generate tbears config files. (tbears_server_config.json,
                 tbears_cli_config.json and keystore_test1)
    console      Get into tbears interactive mode by embedding IPython
    txresult     Get transaction result by transaction hash
    transfer     Transfer ICX coin.
    keystore     Create a keystore file in the specified path
    balance      Get balance of given address in loop unit
    totalsupply  Query total supply of ICX in loop unit
    scoreapi     Get score's api using given score address
    txbyhash     Get transaction by transaction hash
    lastblock    Get last block's info
    blockbyhash  Get block info using given block hash
    blockbyheight
                 Get block info using given block height
    sendtx       Request icx_sendTransaction with the specified json file and
                 keystore file. If keystore file is not given, tbears sends
                 request as it is in the json file.
    call         Request icx_call with the specified json file.

Options

shorthand, Name default Description
-h, --help Show this help message and exit
-v, --verbose Verbose mode. Print debugging messages about its progress.

T-Bears server commands

Commands that manage the T-Bears server. There are three commands tbears start, tbears stop and tbears clear.

tbears start

Description

Start T-Bears service. Whenever T-Bears service starts, it loads the configuration from "tbears_server_config.json" file. If you want to use other configuration file, you can specify the file location with the '-c' option.

Usage

usage: tbears start [-h] [-a ADDRESS] [-p PORT] [-c CONFIG]

Start tbears service

optional arguments:
  -h, --help                       show this help message and exit
  -a ADDRESS, --address ADDRESS    Address to host on (default: 0.0.0.0)
  -p PORT, --port PORT             Listen port (default: 9000)
  -c CONFIG, --config CONFIG       tbears configuration file path(default:./tbears_server_config.json)

Options

shorthand, Name default Description
-h, --help show this help message and exit
-a, --address 127.0.0.1 IP address that the T-Bears service will listen on.
-p, --port 9000 Port number that the T-Bears service will listen on.
-c, --config ./tbears_server_config.json T-Bears configuration file path

tbears stop

Description

Stop all running SCOREs and T-Bears service.

Usage

usage: tbears stop [-h]

Stop all running SCORE and tbears service

optional arguments:
  -h, --help  show this help message and exit

Options

shorthand, Name default Description
-h, --help show this help message and exit

tbears clear

Description

Clear all SCOREs deployed on local T-Bears service.

Usage

usage: tbears clear [-h]

Clear all SCOREs deployed on local T-Bears service

optional arguments:
  -h, --help  show this help message and exit

Options

shorthand, Name default Description
-h, --help show this help message and exit

T-Bears utility commands

Commands that generate configuration file and keystore file.

tbears keystore

Description

Create a keystore file in the given path. Generate a private and public key pair using secp256k1 library.

Usage

usage: tbears keystore [-h] [-p PASSWORD] path

Create keystore file in passed path. Generate privatekey, publickey pair using
secp256k1 library.

positional arguments:
  path                  Path of keystore file.

optional arguments:
  -h, --help            show this help message and exit
  -p PASSWORD, --password PASSWORD
                        Keystore file's password

Options

shorthand, Name default Description
path Create a keystore file in the given path
-h, --help show this help message and exit

Examples

(work) $ tbears keystore keystorepath

input your keystore password: (You have to initialize your keystore password)

Made keystore file successfully

tbears genconf

Description

Generate T-Bears config files. ("tbears_cli_config.json", "tbears_server_config.json", "keystore_test1")

usage: tbears genconf [-h]

Generate T-Bears config files. (tbears_server_config.json, tbears_cli_config.json, keystore_test1)

optional arguments:
  -h, --help  show this help message and exit

Options

shorthand, Name default Description
-h, --help show this help message and exit

Examples

(work) $ tbears genconf

Made tbears_cli_config.json, tbears_server_config.json, keystore_test1 successfully

T-Bears SCORE commands

These commands are related to SCORE development and execution. tbears init generates SCORE projects. tbears deploy, tbears sendtx and tbears call commands are used to deploy the SCORE, send a transaction, and call a function.

tbears init

Description

Initialize SCORE development environment. Generate <project\>.py, package.json and test code in <project\> directory. The name of the SCORE class is \<scoreClass\>. Default configuration files, "tbears_server_config.json" used when starting T-Bears and "tbears_cli_config.json" used when deploying SCORE, are also generated.

Usage

usage: tbears init [-h] project scoreClass

Initialize SCORE development environment. Generate <project>.py, package.json
and test code in <project> directory. The name of the score class is
<scoreClass>.

positional arguments:
  project     Project name
  scoreClass  SCORE class name

optional arguments:
  -h, --help  show this help message and exit

Options

shorthand, Name default Description
project Project name
scoreClass SCORE class name
-h, --help show this help message and exit

Examples

(work) $ tbears init abc ABCToken
(work) $ ls abc
__init__.py  abc.py  package.json  tests

File description

Item Description
tbears_server_config.json T-Bears default configuration file will be created on the working directory.
tbears_cli_config.json Configuration file for CLI commands will be created on the working directory.
keystore_test1 Keystore file for test account will be created on the working directory.
\<project> SCORE project name. Project directory is created with the same name.
\<project>/__init__.py __init__.py file to make the project directory recognized as a python package.
\<project>/package.json Contains the information needed when SCORE is loaded.
"main_file" and "main_class" is necessary.
\<project>/<project>.py SCORE main file. ABCToken class is defined.
\<project>/tests Directory for SCORE test code.
\<project>/tests/__init__.py __init__.py file to make the test directory recognized as a python package.
\<project>/tests/test_<project>.py SCORE test main file.

tbears deploy

Description

Deploy the SCORE. You can deploy it on local T-Bears service or on ICON network.

"tbears_cli_config.json" file contains the deployment configuration properties. (See below 'Configuration Files' chapter). If you want to use other configuration file, you can specify the file location with the '-c' option.

Usage

usage: tbears deploy [-h] [-u URI] [-t {tbears,zip}] [-m {install,update}]
                     [-f FROM] [-o TO] [-k KEYSTORE] [-n NID] [-p PASSWORD]
                     [-s STEPLIMIT] [-c CONFIG]
                     project

Deploy the SCORE

positional arguments:
  project               Project directory path or zip file path

optional arguments:
  -h, --help            show this help message and exit
  -u URI, --node-uri URI
                        URI of node (default: http://127.0.0.1:9000/api/v3)
  -t {tbears,zip}, --type {tbears,zip}
                        This option is deprecated since version 1.0.5. Deploy
                        command supports zip type only
  -m {install,update}, --mode {install,update}
                        Deploy mode (default: install)
  -f FROM, --from FROM  From address. i.e. SCORE owner address
  -o TO, --to TO        To address. i.e. SCORE address
  -k KEYSTORE, --key-store KEYSTORE
                        Keystore file path. Used to generate "from" address
                        and transaction signature
  -n NID, --nid NID     Network ID
  -p PASSWORD, --password PASSWORD
                        keystore file's password
  -s STEPLIMIT, --step-limit STEPLIMIT
                        Step limit
  -c CONFIG, --config CONFIG
                        deploy config path (default: ./tbears_cli_config.json)

Options

shorthand, Name default Description
project Project directory or zip file which contains the SCORE package. If you want to deploy with a zip file, zip the project directory
-h, --help show this help message and exit
-u, --node-uri http://127.0.0.1:9000/api/v3 URI of node
-m {install,update},
--mode {install,update}
install Deploy mode ("install" or "update").
-f, --from From address. i.e. SCORE owner address. It is ignored if keystore is set
-o, --to To address. i.e. SCORE address
This parameter is required when updating SCORE.
-k, --key-store Keystore file path for SCORE owner
-n, --nid Network ID of node.
Each network has unique ID. If the Network ID does not match, node will reject the SCORE. Network ID will be announced when a network opens to public.
0x3 is reserved for T-Bears service. However, T-Bears service does not verify the Network ID.
-p, --password Password of keystor file
-s, --step-limit 0x3000000 Step limit of transaction
-c, --config ./tbears_cli_config.json Configuration file path

Examples

(Work)$ tbears deploy abc

(work)$ tbears deploy abc -c ./tbears_cli_config.json

#when you deploy SCORE to ICON, input keystore password
(Work)$ tbears deploy -k keystore abc
input your keystore password:

Send deploy request successfully.
If you want to check SCORE deployed successfully, execute txresult command
transaction hash: 0x9c294b9608d9575f735ec2e2bf52dc891d7cca6a2fa7e97aee4818325c8a9d41

#update abc SCORE
#append prefix 'cx' in front of SCORE address
(Work)$ tbears deploy abc -m update -o cx6bd390bd855f086e3e9d525b46bfe24511431532 -k keystore
Send deploy request successfully.
If you want to check SCORE deployed successfully, execute txresult command
transaction hash: 0xad292b9608d9575f735ec2ebbf52dc891d7cca6a2fa7e97aee4818325c80934d

tbears test

Description

Run the unittest in the project.

Usage

usage: tbears test [-h] project

Run the unittest in the project

positional arguments:
  project     Project directory path

optional arguments:
  -h, --help  show this help message and exit

Options

shorthand, Name default Description
project Project directory which contains the SCORE package and test code.
-h, --help show this help message and exit

Examples

(work) $ tbears test abc
..
----------------------------------------------------------------------
Ran 2 tests in 0.172s

OK

tbears sendtx

Description

Request icx_sendTransaction with the specified json file.

usage: tbears sendtx [-h] [-u URI] [-k KEYSTORE] [-c CONFIG] json_file

Request icx_sendTransaction with the specified json file and keystore file. If
keystore file is not given, tbears sends request as it is in the json file.

positional arguments:
  json_file             File path containing icx_sendTransaction content

optional arguments:
  -h, --help            show this help message and exit
  -u URI, --node-uri URI
                        URI of node (default: http://127.0.0.1:9000/api/v3)
  -k KEYSTORE, --key-store KEYSTORE
                        Keystore file path. Used to generate "from" address and
                        transaction signature
  -c CONFIG, --config CONFIG
                        Configuration file path. This file defines the default
                        value for the "uri" (default: ./tbears_cli_config.json)

Options

shorthand, Name default Description
json_file Path to the json file containing the request object for icx_transaction.
-h, --help show this help message and exit
-u, --node-uri http://127.0.0.1:9000/api/v3 URI of node
-k, --key-store Keystore file path. Used to generate transaction signature.
-c, --config ./tbears_cli_config.json Configuration file path. This file defines the default values for the properties "keyStore", "uri" and "from".

Examples

(work) $ cat send.json
{
  "jsonrpc": "2.0",
  "method": "icx_sendTransaction",
  "params": {
    "version": "0x3",
    "from": "hxef73db5d0ad02eb1fadb37d0041be96bfa56d4e6",
    "value": "0x0",
    "stepLimit": "0x3000000",
    "timestamp": "0x573117f1d6568",
    "nid": "0x3",
    "nonce": "0x1",
    "to": "cx4d5a79f329adcf00a3daa99539f0eeea2d43d239",
    "dataType": "call",
    "data": {
      "method": "setValue",
      "params": {
        "value": "0x123"
      }
    }
  },
  "id": 1
}
(work) $ tbears sendtx send.json

input your keystore password: 

Send transaction request successfully.
transaction hash: 0xc8a3e3f77f21f8f1177d829cbc4c0ded6fd064cc8e42ef309dacff5c0a952289

In the above example, because there is a timestamp field, tbears make a request using the timestamp value. If you want to make a valid request, omit the timestamp field.

tbears call

Description

Request icx_call with the specified json file.

usage: tbears call [-h] [-u URI] [-c CONFIG] json_file

Request icx_call with the specified json file.

positional arguments:
  json_file             File path containing icx_call content

optional arguments:
  -h, --help            show this help message and exit
  -u URI, --node-uri URI
                        URI of node (default: http://127.0.0.1:9000/api/v3)
  -c CONFIG, --config CONFIG
                        Configuration file path. This file defines the default
                        value for the "uri" (default: ./tbears_cli_config.json)

Options

shorthand, Name default Description
json_file Path to the json file containing the request objet for icx_call
-h, --help Show this help message and exit
-u, --node-uri http://127.0.0.1:9000/api/v3 URI of node
-c, --config ./tbears_cli_config.json Configuration file path. This file defines the default values for the properties "keyStore", "uri" and "from".

Examples

(work) $ cat call.json
{
  "jsonrpc": "2.0",
  "method": "icx_call",
  "params": {
    "from": "hxef73db5d0ad02eb1fadb37d0041be96bfa56d4e6",
    "to": "cx53d5080a7d8a805bb10eb9bc64637809dc910832",
    "dataType": "call",
    "data": {
      "method": "hello"
    }
  },
  "id": 1
}
(work) $ tbears call call.json
response : {
    "jsonrpc": "2.0",
    "result": "hello",
    "id": 1
}

tbears scoreapi

Description

Get list of APIs that the given SCORE provides. Please refer to icx_getScoreApi of ICON JSON-RPC API v3 for details.

Usage

usage: tbears scoreapi [-h] [-u URI] [-c CONFIG] address

Get SCORE's API using given SCORE address

positional arguments:
  address                  SCORE address to query SCORE API

optional arguments:
  -h, --help            show this help message and exit
  -u URI, --node-uri URI
                        URI of node (default: http://127.0.0.1:9000/api/v3)
  -c CONFIG, --config CONFIG
                        Configuration file path. This file defines the default
                        value for the "uri" (default: ./tbears_cli_config.json)

Options

shorthand, Name default Description
address SCORE address to query APIs
-h, --help show this help message and exit
-u, --node-uri http://127.0.0.1:9000/api/v3 URI of node.
-c, --config ./tbears_cli_config.json Configuration file path. This file defines the default value for the "uri".

Examples

(work) $ tbears scoreapi cx0123456789abcdef0123456789abcdefabcdef12

scoreAPI: [
    {
        "type": "fallback",
        "name": "fallback",
        "inputs": []
    },
    {
        "type": "function",
        "name": "hello",
        "inputs": [],
        "outputs": [
            {
                "type": "str"
            }
        ],
        "readonly": "0x1"
    }
]

T-Bears other commands

Commands that are related to ICX coin, transaction, and block.

tbears transfer

Description

Transfer designated amount of ICX coins.

Usage

usage: tbears transfer [-h] [-f FROM] [-k KEYSTORE] [-n NID] [-u URI]
                       [-p PASSWORD] [-s STEPLIMIT] [-c CONFIG]
                       to value

Transfer ICX coin.

positional arguments:
  to                    Recipient
  value                 Amount of ICX coin in loop to transfer (1 icx = 1e18
                        loop)

optional arguments:
  -h, --help            show this help message and exit
  -f FROM, --from FROM  From address.
  -k KEYSTORE, --key-store KEYSTORE
                        Keystore file path. Used to generate "from" address
                        and transaction signature
  -n NID, --nid NID     Network ID (default: 0x3)
  -u URI, --node-uri URI
                        URI of node (default: http://127.0.0.1:9000/api/v3)
  -p PASSWORD, --password PASSWORD
                        Keystore file's password
  -s STEPLIMIT, --step-limit STEPLIMIT
                        Step limit
  -c CONFIG, --config CONFIG
                        Configuration file path. This file defines the default
                        values for the properties "keyStore", "uri", "from"
                        and "stepLimit". (default: ./tbears_cli_config.json)

Options

shorthand, Name default Description
to Recipient address.
value Amount of ICX coin in loop to transfer to "to" address. (1 icx = 1e18 loop)
-h, --help show this help message and exit
-f, --from From address. It is ignored if keystore is set
-k, --key-store Keystore file path. Used to generate "from" address and transaction signature.
-u, --node-uri http://127.0.0.1:9000/api/v3 URI of node
-n, --nid 0x3 Network ID
-p, --password Password of keystor file
-s, --step-limit 0xf4240 Step limit of transaction
-c, --config ./tbears_cli_config.json Configuration file path. This file defines the default values for the properties "keyStore", "uri" and "from".

Examples

(work) $ tbears transfer -f hxaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa hxbbaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaab 100
Got an error response
{
    "jsonrpc": "2.0",
    "error": {
        "code": -32600,
        "message": "Out of balance"
    },
    "id": 1
}


(work) $ tbears transfer -k test_keystore hxaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaab 1e18
Send transfer request successfully.
transaction hash: 0xc1b92b9a08d8575f735ec2ebbf52dc831d7c2a6a2fa7e97aee4818325cad919e

tbears balance

Description

Get balance of given address.

Usage

usage: tbears balance [-h] [-u URI] [-c CONFIG] address

Get balance of given address in loop unit

positional arguments:
  address               Address to query the ICX balance

optional arguments:
  -h, --help            show this help message and exit
  -u URI, --node-uri URI
                        URI of node (default: http://127.0.0.1:9000/api/v3)
  -c CONFIG, --config CONFIG
                        Configuration file path. This file defines the default
                        value for the "uri" (default: ./tbears_cli_config.json)

Options

shorthand, Name default Description
address Address to query the ICX balance
-h, --help show this help message and exit
-u, --node-uri http://127.0.0.1:9000/api/v3 URI of node
-c, --config ./tbears_cli_config.json Configuration file path. This file defines the default value for the "uri".

Examples

(work) $ tbears balance hx0123456789abcdef0123456789abcdefabcdef12

balance in hex: 0x2961fff8ca4a62327800000
balance in decimal: 800460000000000000000000000

tbears totalsupply

Description

Query total supply of ICX.

Usage

usage: tbears totalsupply [-h] [-u URI] [-c CONFIG]

Query total supply of ICX in loop unit

optional arguments:
  -h, --help            show this help message and exit
  -u URI, --node-uri URI
                        URI of node (default: http://127.0.0.1:9000/api/v3)
  -c CONFIG, --config CONFIG
                        Configuration file path. This file defines the default
                        value for the "uri" (default: ./tbears_cli_config.json)

Options

shorthand, Name default Description
-h, --help show this help message and exit
-u, --node-uri http://127.0.0.1:9000/api/v3 URI of node
-c, --config ./tbears_cli_config.json Configuration file path. This file defines the default value for the "uri".

Examples

(work) $ tbears totalsupply

Total supply of ICX in hex: 0x2961fff8ca4a62327800000
Total supply of ICX in decimal: 800460000000000000000000000

tbears txresult

Description

Get transaction result by transaction hash.

Usage

usage: tbears txresult [-h] [-u URI] [-c CONFIG] hash

Get transaction result by transaction hash

positional arguments:
  hash                  Transaction hash of the transaction to be queried.

optional arguments:
  -h, --help            show this help message and exit
  -u URI, --node-uri URI
                        URI of node (default: http://127.0.0.1:9000/api/v3)
  -c CONFIG, --config CONFIG
                        Configuration file path. This file defines the default
                        value for the "uri" (default: ./tbears_cli_config.json)

Options

shorthand, Name default Description
hash Hash of the transaction to be queried
-h, --help show this help message and exit
-u, --node-uri http://127.0.0.1:9000/api/v3 URI of node
-c, --config ./tbears_cli_config.json Configuration file path. This file defines the default value for the "uri".

Examples

(work) $ tbears txresult 0x227fb3e6fdc89de8d24e019b1ddc88538633c4202102297da204444d393249c2
Transaction result: {
    "jsonrpc": "2.0",
    "result": {
        "txHash": "0x227fb3e6fdc89de8d24e019b1ddc88538633c4202102297da204444d393249c2",
        "blockHeight": "0x2",
        "blockHash": "28e6e4710c56e053920b95df0058317a4ac641b16d17d64db7f958e8a5650391",
        "txIndex": "0x0",
        "to": "cx0000000000000000000000000000000000000000",
        "scoreAddress": "cx6bd390bd855f086e3e9d525b46bfe24511431532",
        "stepUsed": "0xe2a4",
        "stepPrice": "0x0",
        "cumulativeStepUsed": "0xe2a4",
        "eventLogs": [],
        "logsBloom": "0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
        "status": "0x1"
    },
    "id": 1
}

tbears txbyhash

Description

Get transaction by transaction hash

Usage

usage: tbears txbyhash [-h] [-u URI] [-c CONFIG] hash

Get transaction by transaction hash

positional arguments:
  hash                  Hash of the transaction to be queried

optional arguments:
  -h, --help            show this help message and exit
  -u URI, --node-uri URI
                        URI of node (default: http://127.0.0.1:9000/api/v3)
  -c CONFIG, --config CONFIG
                        Configuration file path. This file defines the default
                        value for the "uri" (default: ./tbears_cli_config.json)

Options

shorthand, Name default Description
hash Hash of the transaction to be queried
-h, --help show this help message and exit
-u, --node-uri http://127.0.0.1:9000/api/v3 URI of node
-c, --config ./tbears_cli_config.json Configuration file path. This file defines the default value for the "uri".

Examples

(work) $ tbears txbyhash 0x95be9f0247bc3b7ed07fe07c53613c580642ef991c574c85db45dbac9e8366df

Transaction: {
    "jsonrpc": "2.0",
    "result": {
        "version": "0x3",
        "from": "hxaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
        "value": "0x0",
        "stepLimit": "0x3000000",
        "timestamp": "0x572e8fd95db26",
        "nid": "0x3",
        "nonce": "0x1",
        "to": "cx0000000000000000000000000000000000000000",
        "data": {
            "contentType": "application/zip",
            "content": "0x32b34cfa39993fa093e",
            "params": {}
        },
        "dataType": "deploy",
        "signature": "sig",
        "txIndex": "0x0",
        "blockHeight": "0x2",
        "blockHash": "0x28e6e4710c56e053920b95df0058317a4ac641b16d17d64db7f958e8a5650391"
    },
    "id": 1
}

tbears lastblock

Description

Query last block info. When running on T-Bears service, "merkle_tree_root_hash" and "signature" will be empty.

Usage

usage: tbears lastblock [-h] [-u URI] [-c CONFIG]

Get last block info

optional arguments:
  -h, --help            show this help message and exit
  -u URI, --node-uri URI
                        URI of node (default: http://127.0.0.1:9000/api/v3)
  -c CONFIG, --config CONFIG
                        Configuration file path. This file defines the default
                        value for the "uri" (default: ./tbears_cli_config.json)

Options

shorthand, Name default Description
-h, --help show this help message and exit
-u, --node-uri http://127.0.0.1:9000/api/v3 URI of node
-c, --config ./tbears_cli_config.json Configuration file path. This file defines the default value for the "uri".

Examples

(work) $ tbears lastblock 

block info : {
    "jsonrpc": "2.0",
    "result": {
        "version": "tbears",
        "prev_block_hash": "815c0fd7a0dd4594bb19ee39030c1bd91c200878f1f456fe8dd7ff4e0a19b839",
        "merkle_tree_root_hash": "tbears_does_not_support_merkel_tree",
        "time_stamp": 1533719896011654,
        "confirmed_transaction_list": [
            {
                "version": "0x3",
                "from": "hxaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
                "value": "0x0",
                "stepLimit": "0x3000000",
                "timestamp": "0x572e8fd95db26",
                "nid": "0x3",
                "nonce": "0x1",
                "to": "cx0000000000000000000000000000000000000000",
                "data": {
                    "contentType": "application/zip",
                    "content": "0x32b34cfa39993fa093e",
                    "params": {}
                },
                "dataType": "deploy",
                "signature": "sig"
            }
        ],
        "block_hash": "28e6e4710c56e053920b95df0058317a4ac641b16d17d64db7f958e8a5650391",
        "height": 2,
        "peer_id": "fb5f43dc-9aeb-11e8-a31b-acde48001122",
        "signature": "tbears_does_not_support_signature"
    },
    "id": 1
}

tbears blockbyheight

Description

Get block info using given block height.

Usage

usage: tbears blockbyheight [-h] [-u URI] [-c CONFIG] height

Get block info using given block height

positional arguments:
  height                  height of the block to be queried

optional arguments:
  -h, --help            show this help message and exit
  -u URI, --node-uri URI
                        URI of node (default: http://127.0.0.1:9000/api/v3)
  -c CONFIG, --config CONFIG
                        Configuration file path. This file defines the default
                        value for the "uri" (default: ./tbears_cli_config.json)

Options

shorthand, Name default Description
height Height of the block to be queried
-h, --help show this help message and exit
-u, --node-uri http://127.0.0.1:9000/api/v3 URI of node
-c, --config ./tbears_cli_config.json Configuration file path. This file defines the default value for the "uri".

Examples

(work) $ tbears blockbyheight 0x1

block info : {
    "jsonrpc": "2.0",
    "result": {
        "version": "tbears",
        "prev_block_hash": "859083707985809a8b52982b9d8d86bfe48c0020a478b3a99d7eeb3c74c38e7c",
        "merkle_tree_root_hash": "tbears_does_not_support_merkel_tree",
        "time_stamp": 1533719753948440,
        "confirmed_transaction_list": [
            {
                "version": "0x3",
                "from": "hxef73db5d0ad02eb1fadb37d0041be96bfa56d4e6",
                "value": "0x8ac7230489e80000",
                "stepLimit": "0x2000",
                "timestamp": "0x572e8f51e4481",
                "nid": "0x3",
                "nonce": "0x1",
                "to": "hxbbaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaab",
                "signature": "f2B3r27u7peL3I9uBnKA8yn82odqlMECU+UBkRiZTJIwWFo57AmlUjKhoK8OZBBRdaWWmLF+JTZNs70yF8+zIwA="
            }
        ],
        "block_hash": "815c0fd7a0dd4594bb19ee39030c1bd91c200878f1f456fe8dd7ff4e0a19b839",
        "height": 1,
        "peer_id": "a6b22354-9aeb-11e8-a0ae-acde48001122",
        "signature": "tbears_does_not_support_signature"
    },
    "id": 1
}

tbears blockbyhash

Description

Get block info using given block hash.

Options

shorthand, Name default Description
hash Hash of the block to be queried
-h, --help show this help message and exit
-u, --node-uri http://127.0.0.1:9000/api/v3 URI of node
-c, --config ./tbears_cli_config.json Configuration file path. This file defines the default value for the "uri".

Usage

usage: tbears blockbyhash [-h] [-u URI] [-c CONFIG] hash

Get block info using given block hash

positional arguments:
  hash                  hash of the block to be queried

optional arguments:
  -h, --help            show this help message and exit
  -u URI, --node-uri URI
                        URI of node (default: http://127.0.0.1:9000/api/v3)
  -c CONFIG, --config CONFIG
                        Configuration file path. This file defines the default
                        value for the "uri" (default: ./tbears_cli_config.json)

Examples

(work) $ tbears blockbyhash 0xce00facd0ac3832e1e6e623d8f4b9344782da881e55abb48d1494fde9e465f78

block info : {
    "jsonrpc": "2.0",
    "result": {
        "version": "tbears",
        "prev_block_hash": "859083707985809a8b52982b9d8d86bfe48c0020a478b3a99d7eeb3c74c38e7c",
        "merkle_tree_root_hash": "tbears_does_not_support_merkel_tree",
        "time_stamp": 1533719753948440,
        "confirmed_transaction_list": [
            {
                "version": "0x3",
                "from": "hxef73db5d0ad02eb1fadb37d0041be96bfa56d4e6",
                "value": "0x8ac7230489e80000",
                "stepLimit": "0x2000",
                "timestamp": "0x572e8f51e4481",
                "nid": "0x3",
                "nonce": "0x1",
                "to": "hxbbaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaab",
                "signature": "f2B3r27u7peL3I9uBnKA8yn82odqlMECU+UBkRiZTJIwWFo57AmlUjKhoK8OZBBRdaWWmLF+JTZNs70yF8+zIwA="
            }
        ],
        "block_hash": "815c0fd7a0dd4594bb19ee39030c1bd91c200878f1f456fe8dd7ff4e0a19b839",
        "height": 1,
        "peer_id": "a6b22354-9aeb-11e8-a0ae-acde48001122",
        "signature": "tbears_does_not_support_signature"
    },
    "id": 1
}

tbears console

Description

Enter T-Bears interactive mode using IPython. (Ipython.org)

Usage

usage: tbears console [-h]


Get into tbears interactive mode by embedding IPython

optional arguments:
  -h, --help  show this help message and exit

Examples

In the interactive mode, you can execute command in short form (without tbears) by predefined IPython's magic command.
TAB will complete T-Bears's command or variable names. Use TAB.

(work) $ tbears console
tbears) start
Started tbears service successfully
...

tbears) balance hxef73db5d0ad02eb1fadb37d0041be96bfa56d4e6

balance : 0x0

In IPython, you can access previous output using "_" expression.

tbears) pwd
'/Users/username/working/'

tbears) _
'/Users/username/working/'

You can access nth-output using _n-th expression.
The Out object is a dictionary mapping input numbers to their outputs.

tbears) '1'
'1'

tbears) 'second'
'second'

tbears) 3
3

tbears) _2
'second'

tbears) Out
{1: '1', 2: 'second', 3: 3, 4: 'second'}

You can pass the value of a variable as an argument by prefixing the variable name with "$".

tbears) address = f"hx{'0'*40}"

tbears) balance $address

balance : 0x2961fff8ca4a62327800000

You should use "{}" expression when you pass a member of list or dictionary.

tbears) deploy sample_token

Send deploy request successfully.
transaction hash: 0x541d8c9d3e12d92ad50897f81178301f21650b0b48dd5cc722b28b5c56cbc29a


tbears) txresult {_['result']}

{'jsonrpc': '2.0',
 'result': {'txHash': '0xd1ee48aa5d26c1deb275da644e4ffe607c9e556474403c51040dfa59b0dd563c',
  'blockHeight': '0x3',
...

In the interactive mode, deployresults command is available to list up the SCOREs that have been deployed while T-Bears interactive mode is running.

tbears) deployresults
1.path : abc/, txhash : 0x583a89ec656d71d1641945a39792e016eefd6221ad536f9c312957f0c4336774, deployed in : http://127.0.0.1:9000/api/v3
2.path : token/, txhash : 0x8c2fe3c877d46b7a1ba7feb117d0b12c8b88f33517ad2315ec45e8b7223c22f8, deployed in : http://127.0.0.1:9000/api/v3
3.path : abctoken/, txhash : 0xee6e311d2652fd5ed5981f4906bca5d4d6933400721fcbf3528249d7bf460e42, deployed in : http://127.0.0.1:9000/api/v3

T-Bears assigns T-Bears command execution result to '_r' variable.


tbears) deploy sample_token
Send deploy request successfully.
transaction hash: 0x5257b44fe0f36c492e255dbfcdb2ca1134dc9a942b875241d01db3d36ac2bdc8

tbears) result = _r

tbears) result
{'jsonrpc': '2.0',
 'result': '0x5257b44fe0f36c492e255dbfcdb2ca1134dc9a942b875241d01db3d36ac2bdc8',
 'id': 1}

tbears) txresult {result['result']}
Transaction result: {
    "jsonrpc": "2.0",
    "result": {
        "txHash": "0x5257b44fe0f36c492e255dbfcdb2ca1134dc9a942b875241d01db3d36ac2bdc8",
        "blockHeight": "0x1",
        "blockHash": "9c06e5c1bbd8ed1efc1ec7d1be59b64dd102bde43fc13c3f22e25e5aaa1eda51",
        "txIndex": "0x0",
        "to": "cx0000000000000000000000000000000000000000",
        "scoreAddress": "cxb8f2c9ba48856df2e889d1ee30ff6d2e002651cf",
...

tbears) scoreapi {_r['result']['scoreAddress']}
SCORE API: [
    {
        "type": "fallback",
        "name": "fallback",
        "inputs": []
    },
...

How to use T-Bears


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