1. 前言
本文继续对EOS资源进行一个大概的讲解,并通过实例演示如何通过RPC API,操作CPU和NET资源的抵押/赎回。
我们依然在测试网络http://jungle.cryptolions.io:18888
上,使用Postman
对API进行测试。
2. CPU和NET
CPU和NET资源是通过抵押EOS Token获得的,可以由其他账户为你抵押,也可以自己抵押。如果是由他人为你抵押,他可以选择抵押的资源是否可以由你赎回,所获得的EOS也归于你;或者这部分资源只能由他赎回,所获得的EOS也归于他,简单来说就是资源是他送给你的还是只是租借给你的。当然,自己抵押的资源,赎回时会将EOS打回给自己的账户。
和内存一样,抵押和赎回也是通过eosio.token
的transfer
方法,与系统账户eosio.stake
相互转账。系统不会收取手续费。
赎回资源时,EOS不会马上到账,而是会在三天后到账。你无法赎回已经使用的资源,需要在该资源自动释放后才可赎回。
CPU和NET资源是系统自动释放的,也就是已使用的这部分资源会在一段时间后恢复并可以再次使用。
3. 目标
这篇文章将演示三种情况:
A以租借的形式为B抵押资源,A可以赎回,B无法赎回
A以赠送的方式为B抵押资源,A无法赎回,B可以赎回
B自己抵押资源并且可以赎回
4. 准备工作
我们重新创建一个账户testnetstake
。创建时只为其购买一些内存,不抵押CPU和NET资源。
生成一个新的钱包stake.wallet
:
yuyangdeMacBook-Pro:cleos yuyang$ cleos wallet create -n stake --to-console
Creating wallet: stake
Save password to use in the future to unlock this wallet.
Without password imported keys will not be retrievable.
"PW5Kxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
生成两个公钥:
EOS7RKPFD8228owd1BG1aiwYThSTLp3huiq9J3gWCwW3CjAoBtsJf
EOS6KDP2yjhD5E6ESyviF2qgUoH2bsyy6ybm5KTrMJstb6Mbxy3up
创建账户,注意抵押的CPU和NET资源的EOS都为0
:
yuyangdeMacBook-Pro:cleos yuyang$ cleos -u "http://jungle.cryptolions.io:18888" system newaccount --stake-net '0 EOS' --stake-cpu '0 EOS' --buy-ram '100 EOS' testnetyy111 testnetstake EOS7RKPFD8228owd1BG1aiwYThSTLp3huiq9J3gWCwW3CjAoBtsJf EOS6KDP2yjhD5E6ESyviF2qgUoH2bsyy6ybm5KTrMJstb6Mbxy3up
executed transaction: 9338daa79f6e41dfaf46b3ef147c63335e1df7314fb47a5cc7e4a97a7512be23 264 bytes 6678 us
# eosio <= eosio::newaccount {"creator":"testnetyy111","name":"testnetstake","owner":{"threshold":1,"keys":[{"key":"EOS7RKPFD8228...
# eosio <= eosio::buyram {"payer":"testnetyy111","receiver":"testnetstake","quant":"100.0000 EOS"}
# eosio.token <= eosio.token::transfer {"from":"testnetyy111","to":"eosio.ram","quantity":"99.5000 EOS","memo":"buy ram"}
# testnetyy111 <= eosio.token::transfer {"from":"testnetyy111","to":"eosio.ram","quantity":"99.5000 EOS","memo":"buy ram"}
# eosio.ram <= eosio.token::transfer {"from":"testnetyy111","to":"eosio.ram","quantity":"99.5000 EOS","memo":"buy ram"}
# eosio.token <= eosio.token::transfer {"from":"testnetyy111","to":"eosio.ramfee","quantity":"0.5000 EOS","memo":"ram fee"}
# testnetyy111 <= eosio.token::transfer {"from":"testnetyy111","to":"eosio.ramfee","quantity":"0.5000 EOS","memo":"ram fee"}
# eosio.ramfee <= eosio.token::transfer {"from":"testnetyy111","to":"eosio.ramfee","quantity":"0.5000 EOS","memo":"ram fee"}
查看账号情况,确认CPU和NET资源都为0
:
yuyangdeMacBook-Pro:cleos yuyang$ cleos -u "http://jungle.cryptolions.io:18888" get account testnetstake
permissions:
owner 1: 1 EOS7RKPFD8228owd1BG1aiwYThSTLp3huiq9J3gWCwW3CjAoBtsJf
active 1: 1 EOS6KDP2yjhD5E6ESyviF2qgUoH2bsyy6ybm5KTrMJstb6Mbxy3up
memory:
quota: 1.552 MiB used: 2.926 KiB
net bandwidth:
delegated: 0.0000 EOS (total staked delegated to account from others)
used: 0 bytes
available: 0 bytes
limit: 0 bytes
cpu bandwidth:
delegated: 0.0000 EOS (total staked delegated to account from others)
used: 0 us
available: 0 us
limit: 0 us
5. A以租借的形式为B抵押资源
5.1 生成抵押的bin字符串
调用
eosio
合约的delegatebw
方法传入抵押者账户名称和接收者账户名称
指定要抵押的资源的类型和对应数量,单位为EOS。如果只想抵押其中一种资源,只需将另一项资源的值设为
0
transfer
为0
,表示是以delegated
租借的方式抵押资源
api
http://jungle.cryptolions.io:18888/v1/chain/abi_json_to_bin
params
{
"code": "eosio",
"action": "delegatebw",
"args": {
"from": "testnetyy111",
"receiver": "testnetstake",
"stake_net_quantity": "100.0000 EOS",
"stake_cpu_quantity": "100.0000 EOS",
"transfer": 0,
}
}
return
{
"binargs": "1042f03eab99b1caa0a0c938ab99b1ca40420f000000000004454f530000000040420f000000000004454f530000000000"
}
5.2 获取当前最新的区块号
api
http://jungle.cryptolions.io:18888/v1/chain/get_info
params
无
return
{
"server_version": "08819aae",
"chain_id": "038f4b0fc8ff18a4f0842a8f0564611f6e96e8535901dd45e43ac8691a1c4dca",
"head_block_num": 14157128,
"last_irreversible_block_num": 14156794,
"last_irreversible_block_id": "00d803faf226087020c201b3b18f6aea1d1e0ec654f926af6f4eca46683ec8a8",
"head_block_id": "00d805487415a2d5c5f7f03ae719eac64274c23abcc524dbefdc6ef60531e206",
"head_block_time": "2018-09-13T07:55:16.500",
"head_block_producer": "owlinthedark",
"virtual_block_cpu_limit": 200000000,
"virtual_block_net_limit": 1048576000,
"block_cpu_limit": 199900,
"block_net_limit": 1048576,
"server_version_string": "v1.2.5-dirty"
}
获取到区块号"head_block_num": 14157128
5.3 获取当前区块详情
api
http://jungle.cryptolions.io:18888/v1/chain/get_block
params
{"block_num_or_id":"14157128"}
return
{
"timestamp": "2018-09-13T07:55:16.500",
"producer": "owlinthedark",
"confirmed": 0,
"previous": "00d805471896a4b1f0214118d7d03395b2f350805e3352d0661eca313f1252f7",
"transaction_mroot": "0000000000000000000000000000000000000000000000000000000000000000",
"action_mroot": "2274d5cbc0ab5d00912ecc035f0157af143b2a27f7c48583c5382b518f6890fb",
"schedule_version": 222,
"new_producers": null,
"header_extensions": [],
"producer_signature": "SIG_K1_K1c4VLrKocDfjR1EQJzzriZHdxWsHfnddDU2hxc7v2E9kDUr8MbiCYbiMQ1F7YfHdBK5xMNnxkknBTpxrHvEYQgBAM37oC",
"transactions": [],
"block_extensions": [],
"id": "00d805487415a2d5c5f7f03ae719eac64274c23abcc524dbefdc6ef60531e206",
"block_num": 14157128,
"ref_block_prefix": 988870597
}
获取到"timestamp": "2018-09-13T07:55:16.500"
和"ref_block_prefix": 988870597
5.4 签署交易
过期时间我这里加了
20
分钟。2018-09-13T07:55:16.500
==>2018-09-13T08:15:16.500
注意这里钱包服务的端口为
8899
api
http://127.0.0.1:8899/v1/wallet/sign_transaction
params
[{
"ref_block_num": 14157128,
"ref_block_prefix": 988870597,
"expiration": "2018-09-13T08:15:16.500",
"actions": [{
"account": "eosio",
"name": "delegatebw",
"authorization": [{
"actor": "testnetyy111",
"permission": "active"
}],
"data": "1042f03eab99b1caa0a0c938ab99b1ca40420f000000000004454f530000000040420f000000000004454f530000000000"
}],
"signatures": []
},
["EOS6Z7mUQeFC2cQTT3xMyZh2wsLQoHih1bTMgRhr3dbichprTi7Rc"], "038f4b0fc8ff18a4f0842a8f0564611f6e96e8535901dd45e43ac8691a1c4dca"
]
return
{
"expiration": "2018-09-13T08:15:16",
"ref_block_num": 1352,
"ref_block_prefix": 988870597,
"max_net_usage_words": 0,
"max_cpu_usage_ms": 0,
"delay_sec": 0,
"context_free_actions": [],
"actions": [
{
"account": "eosio",
"name": "delegatebw",
"authorization": [
{
"actor": "testnetyy111",
"permission": "active"
}
],
"data": "1042f03eab99b1caa0a0c938ab99b1ca40420f000000000004454f530000000040420f000000000004454f530000000000"
}
],
"transaction_extensions": [],
"signatures": [
"SIG_K1_K86bpaTi2vhSoysvjbJm65e879JpkE64TR18gsgxVZ9yaKfbrpkju5iNWT7QTn6ch3goESm4Nz3ZaF3ZkqQTFGYjpF5kum"
],
"context_free_data": []
}
获取到signatures
5.5 提交交易
api
http://jungle.cryptolions.io:18888/v1/chain/push_transaction
params
{
"compression": "none",
"transaction": {
"expiration": "2018-09-13T08:15:16.500",
"ref_block_num": 14157128,
"ref_block_prefix": 988870597,
"context_free_actions": [],
"actions": [
{
"account": "eosio",
"name": "delegatebw",
"authorization": [
{
"actor": "testnetyy111",
"permission": "active"
}
],
"data": "1042f03eab99b1caa0a0c938ab99b1ca40420f000000000004454f530000000040420f000000000004454f530000000000"
}
],
"transaction_extensions": []
},
"signatures": [
"SIG_K1_K86bpaTi2vhSoysvjbJm65e879JpkE64TR18gsgxVZ9yaKfbrpkju5iNWT7QTn6ch3goESm4Nz3ZaF3ZkqQTFGYjpF5kum"
]
}
return
{
"transaction_id": "4de32a7b16e567bc95ef8605ca44965f86cabc33afad08f3138c1ef4073b31d4",
"processed": {
"id": "4de32a7b16e567bc95ef8605ca44965f86cabc33afad08f3138c1ef4073b31d4",
"receipt": {
"status": "executed",
"cpu_usage_us": 4895,
"net_usage_words": 18
},
"elapsed": 4895,
"net_usage": 144,
"scheduled": false,
"action_traces": [
{
"receipt": {
"receiver": "eosio",
"act_digest": "9191ba96bca789221fc5d3b6ae56f517fe4d4ca52e155992a7abdb2ff486e3e3",
"global_sequence": 33560983,
"recv_sequence": 15613483,
"auth_sequence": [
[
"testnetyy111",
88
]
],
"code_sequence": 12,
"abi_sequence": 13
},
"act": {
"account": "eosio",
"name": "delegatebw",
"authorization": [
{
"actor": "testnetyy111",
"permission": "active"
}
],
"data": {
"from": "testnetyy111",
"receiver": "testnetstake",
"stake_net_quantity": "100.0000 EOS",
"stake_cpu_quantity": "100.0000 EOS",
"transfer": 0
},
"hex_data": "1042f03eab99b1caa0a0c938ab99b1ca40420f000000000004454f530000000040420f000000000004454f530000000000"
},
"elapsed": 3198,
"cpu_usage": 0,
"console": "",
"total_cpu_usage": 0,
"trx_id": "4de32a7b16e567bc95ef8605ca44965f86cabc33afad08f3138c1ef4073b31d4",
"inline_traces": [
{
"receipt": {
"receiver": "eosio.token",
"act_digest": "047df0b43c3db6ad34ac4a84b025509e529aef9d3442fa54d3fe936ce7863553",
"global_sequence": 33560984,
"recv_sequence": 1728899,
"auth_sequence": [
[
"testnetyy111",
89
]
],
"code_sequence": 4,
"abi_sequence": 4
},
"act": {
"account": "eosio.token",
"name": "transfer",
"authorization": [
{
"actor": "testnetyy111",
"permission": "active"
}
],
"data": {
"from": "testnetyy111",
"to": "eosio.stake",
"quantity": "200.0000 EOS",
"memo": "stake bandwidth"
},
"hex_data": "1042f03eab99b1ca0014341903ea305580841e000000000004454f53000000000f7374616b652062616e647769647468"
},
"elapsed": 982,
"cpu_usage": 0,
"console": "",
"total_cpu_usage": 0,
"trx_id": "4de32a7b16e567bc95ef8605ca44965f86cabc33afad08f3138c1ef4073b31d4",
"inline_traces": [
{
"receipt": {
"receiver": "testnetyy111",
"act_digest": "047df0b43c3db6ad34ac4a84b025509e529aef9d3442fa54d3fe936ce7863553",
"global_sequence": 33560985,
"recv_sequence": 30,
"auth_sequence": [
[
"testnetyy111",
90
]
],
"code_sequence": 4,
"abi_sequence": 4
},
"act": {
"account": "eosio.token",
"name": "transfer",
"authorization": [
{
"actor": "testnetyy111",
"permission": "active"
}
],
"data": {
"from": "testnetyy111",
"to": "eosio.stake",
"quantity": "200.0000 EOS",
"memo": "stake bandwidth"
},
"hex_data": "1042f03eab99b1ca0014341903ea305580841e000000000004454f53000000000f7374616b652062616e647769647468"
},
"elapsed": 148,
"cpu_usage": 0,
"console": "",
"total_cpu_usage": 0,
"trx_id": "4de32a7b16e567bc95ef8605ca44965f86cabc33afad08f3138c1ef4073b31d4",
"inline_traces": []
},
{
"receipt": {
"receiver": "eosio.stake",
"act_digest": "047df0b43c3db6ad34ac4a84b025509e529aef9d3442fa54d3fe936ce7863553",
"global_sequence": 33560986,
"recv_sequence": 238796,
"auth_sequence": [
[
"testnetyy111",
91
]
],
"code_sequence": 4,
"abi_sequence": 4
},
"act": {
"account": "eosio.token",
"name": "transfer",
"authorization": [
{
"actor": "testnetyy111",
"permission": "active"
}
],
"data": {
"from": "testnetyy111",
"to": "eosio.stake",
"quantity": "200.0000 EOS",
"memo": "stake bandwidth"
},
"hex_data": "1042f03eab99b1ca0014341903ea305580841e000000000004454f53000000000f7374616b652062616e647769647468"
},
"elapsed": 27,
"cpu_usage": 0,
"console": "",
"total_cpu_usage": 0,
"trx_id": "4de32a7b16e567bc95ef8605ca44965f86cabc33afad08f3138c1ef4073b31d4",
"inline_traces": []
}
]
}
]
}
],
"except": null
}
}
5.6 查看账户
yuyangdeMacBook-Pro:cleos yuyang$ cleos -u "http://jungle.cryptolions.io:18888" get account testnetstake
permissions:
owner 1: 1 EOS7RKPFD8228owd1BG1aiwYThSTLp3huiq9J3gWCwW3CjAoBtsJf
active 1: 1 EOS6KDP2yjhD5E6ESyviF2qgUoH2bsyy6ybm5KTrMJstb6Mbxy3up
memory:
quota: 1.552 MiB used: 2.926 KiB
net bandwidth:
delegated: 100.0000 EOS (total staked delegated to account from others)
used: 0 bytes
available: 18.29 MiB
limit: 18.29 MiB
cpu bandwidth:
delegated: 100.0000 EOS (total staked delegated to account from others)
used: 0 us
available: 3.651 sec
limit: 3.651 sec
可以看到CPU和NET各租借了100
EOS
5.7 testnetstake
尝试赎回资源
我们先尝试使用testnetstake
账户赎回由testnetyy111
租借给自己的资源。打开并解锁钱包stake.wallet
,将testnetstake
的私钥导入。下面需要由testnetstake
签署交易
5.8 生成赎回资源的bin字符串
调用
eosio
合约的undelegatebw
方法传入赎回者账户名称和接收者账户名称
赎回价值
100
EOS的CPU和NET
api
http://jungle.cryptolions.io:18888/v1/chain/abi_json_to_bin
params
{
"code": "eosio",
"action": "undelegatebw",
"args": {
"from": "testnetstake",
"receiver": "testnetstake",
"unstake_net_quantity": "100.0000 EOS",
"unstake_cpu_quantity": "100.0000 EOS"
}
}
return
{
"binargs": "a0a0c938ab99b1caa0a0c938ab99b1ca40420f000000000004454f530000000040420f000000000004454f5300000000"
}
5.9 获取当前最新的区块号
api
http://jungle.cryptolions.io:18888/v1/chain/get_info
params
无
return
{
"server_version": "08819aae",
"chain_id": "038f4b0fc8ff18a4f0842a8f0564611f6e96e8535901dd45e43ac8691a1c4dca",
"head_block_num": 14163505,
"last_irreversible_block_num": 14163180,
"last_irreversible_block_id": "00d81cecbc3f09fef84f00732ccb8400224af86bde742823356e704f00a6afc2",
"head_block_id": "00d81e3160bc55a2de6e7ca13f771d8c481e9906ef83cfb1ab770d36b3144c69",
"head_block_time": "2018-09-13T08:50:24.500",
"head_block_producer": "atticlabjbpn",
"virtual_block_cpu_limit": 200000000,
"virtual_block_net_limit": 1048576000,
"block_cpu_limit": 199900,
"block_net_limit": 1048576,
"server_version_string": "v1.2.5-dirty"
}
获取到区块号"head_block_num": 14163505
5.10 获取当前区块详情
api
http://jungle.cryptolions.io:18888/v1/chain/get_block
params
{"block_num_or_id":"14163505"}
return
{
"timestamp": "2018-09-13T08:50:24.500",
"producer": "atticlabjbpn",
"confirmed": 0,
"previous": "00d81e30541ebd7f20b776eb4d08f6caaefa774e540784c65cc152c4a8776579",
"transaction_mroot": "ca199973357ca4587d01e875b2478ad6fcd1c443de6ab66d8b34933fdf791761",
"action_mroot": "fe4bab83f379ec92f5695be402014b73bd6f38ab3aa2c4c6d2b8ceb9daa09959",
"schedule_version": 223,
"new_producers": null,
"header_extensions": [],
"producer_signature": "SIG_K1_JvUmSxB1NSDW6H6UkqxXxyTAZ9cehCr2pEK7F1G5zYnsYVyDfpFgpDQviYNH61gbNbKRkJtf3iXoX7s7JXbHrBtzrJQope",
"transactions": [
{
"status": "executed",
"cpu_usage_us": 1159,
"net_usage_words": 20,
"trx": {
"id": "56f8f7b3c231292eb27d1711ba0297f8008cab1917f79866614cd0aff3a549c8",
"signatures": [
"SIG_K1_KVg8FwTN6tewinydJ6AoMa8Sg2FX8RxWi9ErmFdS9ypKogGraoEs3jzRK3SyZ7omv33SeuyJcEd9DhWDNPfCCo32JSHC3w"
],
"compression": "none",
"packed_context_free_data": "",
"context_free_data": [],
"packed_trx": "ee249a5bec1cf84f00730000000100408c7a02ea3055000000000085269d0008cf3238ccbc750500017055ce8e6788683c0000000080ac14cf0180277591e6ea2f3200000000a8ed323225245745204c4f564520424d20e299a52e204a756e676c6520746573742e202320313937363300",
"transaction": {
"expiration": "2018-09-13T08:50:54",
"ref_block_num": 7404,
"ref_block_prefix": 1929400312,
"max_net_usage_words": 0,
"max_cpu_usage_ms": 0,
"delay_sec": 0,
"context_free_actions": [
{
"account": "eosio.null",
"name": "nonce",
"authorization": [],
"data": "cf3238ccbc750500"
}
],
"actions": [
{
"account": "blocktwitter",
"name": "tweet",
"authorization": [
{
"actor": "acryptolions",
"permission": "active"
}
],
"data": {
"message": "WE LOVE BM ♥. Jungle test. # 19763"
},
"hex_data": "245745204c4f564520424d20e299a52e204a756e676c6520746573742e2023203139373633"
}
],
"transaction_extensions": []
}
}
}
],
"block_extensions": [],
"id": "00d81e3160bc55a2de6e7ca13f771d8c481e9906ef83cfb1ab770d36b3144c69",
"block_num": 14163505,
"ref_block_prefix": 2709286622
}
获取到"timestamp": "2018-09-13T08:50:24.500"
和"ref_block_prefix": 2709286622
5.11 签署交易
- 过期时间我这里加了
20
分钟。2018-09-13T08:50:24.500
==>2018-09-13T09:10:24.500
api
http://127.0.0.1:8899/v1/wallet/sign_transaction
params
[{
"ref_block_num": 14163505,
"ref_block_prefix": 2709286622,
"expiration": "2018-09-13T09:10:24.500",
"actions": [{
"account": "eosio",
"name": "undelegatebw",
"authorization": [{
"actor": "testnetstake",
"permission": "active"
}],
"data": "a0a0c938ab99b1caa0a0c938ab99b1ca40420f000000000004454f530000000040420f000000000004454f5300000000"
}],
"signatures": []
},
["EOS6KDP2yjhD5E6ESyviF2qgUoH2bsyy6ybm5KTrMJstb6Mbxy3up"], "038f4b0fc8ff18a4f0842a8f0564611f6e96e8535901dd45e43ac8691a1c4dca"
]
return
{
"expiration": "2018-09-13T09:10:24",
"ref_block_num": 7729,
"ref_block_prefix": 2709286622,
"max_net_usage_words": 0,
"max_cpu_usage_ms": 0,
"delay_sec": 0,
"context_free_actions": [],
"actions": [
{
"account": "eosio",
"name": "undelegatebw",
"authorization": [
{
"actor": "testnetstake",
"permission": "active"
}
],
"data": "a0a0c938ab99b1caa0a0c938ab99b1ca40420f000000000004454f530000000040420f000000000004454f5300000000"
}
],
"transaction_extensions": [],
"signatures": [
"SIG_K1_JzBA4onsfRYecBwZr21yVshj9ii2e5nUB5kMVvfMS5BVwAPsj1NH6SVW5LBraoBpQX8KoWjpgXP3W4PQe9wNkZ9aQ8K3wm"
],
"context_free_data": []
}
获取到signatures
5.12 提交交易
api
http://jungle.cryptolions.io:18888/v1/chain/push_transaction
params
{
"compression": "none",
"transaction": {
"expiration": "2018-09-13T09:10:24.500",
"ref_block_num": 14163505,
"ref_block_prefix": 2709286622,
"context_free_actions": [],
"actions": [
{
"account": "eosio",
"name": "undelegatebw",
"authorization": [
{
"actor": "testnetstake",
"permission": "active"
}
],
"data": "a0a0c938ab99b1caa0a0c938ab99b1ca40420f000000000004454f530000000040420f000000000004454f5300000000"
}
],
"transaction_extensions": []
},
"signatures": [
"SIG_K1_JzBA4onsfRYecBwZr21yVshj9ii2e5nUB5kMVvfMS5BVwAPsj1NH6SVW5LBraoBpQX8KoWjpgXP3W4PQe9wNkZ9aQ8K3wm"
]
}
return
{
"code": 500,
"message": "Internal Service Error",
"error": {
"code": 3050003,
"name": "eosio_assert_message_exception",
"what": "eosio_assert_message assertion failure",
"details": [
{
"message": "assertion failure with message: insufficient staked net bandwidth",
"file": "wasm_interface.cpp",
"line_number": 930,
"method": "eosio_assert"
},
{
"message": "pending console output: ",
"file": "apply_context.cpp",
"line_number": 61,
"method": "exec_one"
}
]
}
}
报错提示staked
资源不足。和我们预想的一样,无法将别人租借给自己的资源,赎回成EOS给自己的账户。接下来我们使用testnetyy111
来赎回租借给testnetstake
的资源
5.13 生成赎回资源的bin字符串
from
: 解除用哪个账号所抵押的代币receiver
: 解除作用在哪个账号上的抵押代币
api
http://jungle.cryptolions.io:18888/v1/chain/abi_json_to_bin
params
{
"code": "eosio",
"action": "undelegatebw",
"args": {
"from": "testnetyy111",
"receiver": "testnetstake",
"unstake_net_quantity": "100.0000 EOS",
"unstake_cpu_quantity": "100.0000 EOS"
}
}
return
{
"binargs": "1042f03eab99b1caa0a0c938ab99b1ca40420f000000000004454f530000000040420f000000000004454f5300000000"
}
5.14 获取当前最新的区块号
api
http://jungle.cryptolions.io:18888/v1/chain/get_info
params
无
return
{
"server_version": "08819aae",
"chain_id": "038f4b0fc8ff18a4f0842a8f0564611f6e96e8535901dd45e43ac8691a1c4dca",
"head_block_num": 14168523,
"last_irreversible_block_num": 14168193,
"last_irreversible_block_id": "00d83081e104e331a6904f88310ba656c04e52921b20f893e99e76b785996793",
"head_block_id": "00d831cbeea798d092dc105e5927b9d247e92072453699eb2dacd5b707c9bdc3",
"head_block_time": "2018-09-13T09:34:40.500",
"head_block_producer": "blockgenesys",
"virtual_block_cpu_limit": 200000000,
"virtual_block_net_limit": 1048576000,
"block_cpu_limit": 199089,
"block_net_limit": 1048416,
"server_version_string": "v1.2.5-dirty"
}
获取到区块号"head_block_num": 14168523
5.15 获取当前区块详情
api
http://jungle.cryptolions.io:18888/v1/chain/get_block
params
{"block_num_or_id":"14168523"}
return
{
"timestamp": "2018-09-13T09:34:40.500",
"producer": "blockgenesys",
"confirmed": 0,
"previous": "00d831cadfecabb333f5c2a3a72924186dc860057ee139573ba90b219fc5560e",
"transaction_mroot": "ae2a66f513cbc9589d00be07102fb9144fe9ca3490c23489953c46258f2c9345",
"action_mroot": "c923f03e82cce8193100a47d9c58798bf2b0b6472f950da983889e4c94a05065",
"schedule_version": 223,
"new_producers": null,
"header_extensions": [],
"producer_signature": "SIG_K1_K4rAkncocM8JVA7H5ZKDAP3bbNuEku9LmdhXGvG45uYwjdhbrwMCqPdCrBecPvahJfkZn5Ydi1KWysY2gPRpFK5Emp7PpQ",
"transactions": [
{
"status": "executed",
"cpu_usage_us": 637,
"net_usage_words": 20,
"trx": {
"id": "b90962a0a0301f5239d079bddfcaa858ef819da860c8d60160c72894722b9f57",
"signatures": [
"SIG_K1_Kf5QjHpFVCpM9fcHnCWPFgwvrqvEb4hpHe7mEjGGCc7sErq5tUp4du75FBSac3j8i6874LExQX7EUSrg88spYAyTgWUecA"
],
"compression": "none",
"packed_context_free_data": "",
"context_free_data": [],
"packed_trx": "4e2f9a5b8130a6904f880000000100408c7a02ea3055000000000085269d0008ceee886abd750500017055ce8e6788683c0000000080ac14cf0180277591e6ea2f3200000000a8ed323225245745204c4f564520424d20e299a52e204a756e676c6520746573742e202320333136343500",
"transaction": {
"expiration": "2018-09-13T09:35:10",
"ref_block_num": 12417,
"ref_block_prefix": 2286915750,
"max_net_usage_words": 0,
"max_cpu_usage_ms": 0,
"delay_sec": 0,
"context_free_actions": [
{
"account": "eosio.null",
"name": "nonce",
"authorization": [],
"data": "ceee886abd750500"
}
],
"actions": [
{
"account": "blocktwitter",
"name": "tweet",
"authorization": [
{
"actor": "acryptolions",
"permission": "active"
}
],
"data": {
"message": "WE LOVE BM ♥. Jungle test. # 31645"
},
"hex_data": "245745204c4f564520424d20e299a52e204a756e676c6520746573742e2023203331363435"
}
],
"transaction_extensions": []
}
}
}
],
"block_extensions": [],
"id": "00d831cbeea798d092dc105e5927b9d247e92072453699eb2dacd5b707c9bdc3",
"block_num": 14168523,
"ref_block_prefix": 1578163346
}
获取到"timestamp": "2018-09-13T09:34:40.500"
和"ref_block_prefix": 1578163346
5.16 签署交易
过期时间我这里加了
20
分钟。2018-09-13T09:34:40.500
==>2018-09-13T09:54:40.500
注意这里使用的是含有
testnetyy111
密钥的钱包
api
http://127.0.0.1:8899/v1/wallet/sign_transaction
params
[{
"ref_block_num": 14168523,
"ref_block_prefix": 1578163346,
"expiration": "2018-09-13T09:54:40.500",
"actions": [{
"account": "eosio",
"name": "undelegatebw",
"authorization": [{
"actor": "testnetyy111",
"permission": "active"
}],
"data": "1042f03eab99b1caa0a0c938ab99b1ca40420f000000000004454f530000000040420f000000000004454f5300000000"
}],
"signatures": []
},
["EOS6Z7mUQeFC2cQTT3xMyZh2wsLQoHih1bTMgRhr3dbichprTi7Rc"], "038f4b0fc8ff18a4f0842a8f0564611f6e96e8535901dd45e43ac8691a1c4dca"
]
return
{
"expiration": "2018-09-13T09:54:40",
"ref_block_num": 12747,
"ref_block_prefix": 1578163346,
"max_net_usage_words": 0,
"max_cpu_usage_ms": 0,
"delay_sec": 0,
"context_free_actions": [],
"actions": [
{
"account": "eosio",
"name": "undelegatebw",
"authorization": [
{
"actor": "testnetyy111",
"permission": "active"
}
],
"data": "1042f03eab99b1caa0a0c938ab99b1ca40420f000000000004454f530000000040420f000000000004454f5300000000"
}
],
"transaction_extensions": [],
"signatures": [
"SIG_K1_KjS2QqDGc5Pt6ezznN837dt5W5NCaczW6yKJvmfsFkrUBBk3xsjdv2KiHtJReSnBWhzf172movkGhfzyDfCaXgLdY7d56t"
],
"context_free_data": []
}
获取到signatures
5.17 提交交易
api
http://jungle.cryptolions.io:18888/v1/chain/push_transaction
params
{
"compression": "none",
"transaction": {
"expiration": "2018-09-13T09:54:40.500",
"ref_block_num": 14168523,
"ref_block_prefix": 1578163346,
"context_free_actions": [],
"actions": [
{
"account": "eosio",
"name": "undelegatebw",
"authorization": [
{
"actor": "testnetyy111",
"permission": "active"
}
],
"data": "1042f03eab99b1caa0a0c938ab99b1ca40420f000000000004454f530000000040420f000000000004454f5300000000"
}
],
"transaction_extensions": []
},
"signatures": [
"SIG_K1_KjS2QqDGc5Pt6ezznN837dt5W5NCaczW6yKJvmfsFkrUBBk3xsjdv2KiHtJReSnBWhzf172movkGhfzyDfCaXgLdY7d56t"
]
}
return
{
"transaction_id": "d234efd776806e2be3f611c25dd79e12cecb4de813c610301ac0311066a65db6",
"processed": {
"id": "d234efd776806e2be3f611c25dd79e12cecb4de813c610301ac0311066a65db6",
"receipt": {
"status": "executed",
"cpu_usage_us": 4044,
"net_usage_words": 23
},
"elapsed": 4044,
"net_usage": 184,
"scheduled": false,
"action_traces": [
{
"receipt": {
"receiver": "eosio",
"act_digest": "2a9b1145aa3051eab4dffd31b7cb6b18a688a190caf1d7f4b472a97e888fcc6a",
"global_sequence": 33588135,
"recv_sequence": 15624244,
"auth_sequence": [
[
"testnetyy111",
92
]
],
"code_sequence": 12,
"abi_sequence": 13
},
"act": {
"account": "eosio",
"name": "undelegatebw",
"authorization": [
{
"actor": "testnetyy111",
"permission": "active"
}
],
"data": {
"from": "testnetyy111",
"receiver": "testnetstake",
"unstake_net_quantity": "100.0000 EOS",
"unstake_cpu_quantity": "100.0000 EOS"
},
"hex_data": "1042f03eab99b1caa0a0c938ab99b1ca40420f000000000004454f530000000040420f000000000004454f5300000000"
},
"elapsed": 3544,
"cpu_usage": 0,
"console": "",
"total_cpu_usage": 0,
"trx_id": "d234efd776806e2be3f611c25dd79e12cecb4de813c610301ac0311066a65db6",
"inline_traces": []
}
],
"except": null
}
}
5.18 查看账户
yuyangdeMacBook-Pro:cleos yuyang$ cleos -u "http://jungle.cryptolions.io:18888" get account testnetstake
permissions:
owner 1: 1 EOS7RKPFD8228owd1BG1aiwYThSTLp3huiq9J3gWCwW3CjAoBtsJf
active 1: 1 EOS6KDP2yjhD5E6ESyviF2qgUoH2bsyy6ybm5KTrMJstb6Mbxy3up
memory:
quota: 1.552 MiB used: 2.926 KiB
net bandwidth:
delegated: 0.0000 EOS (total staked delegated to account from others)
used: 0 bytes
available: 0 bytes
limit: 0 bytes
cpu bandwidth:
delegated: 0.0000 EOS (total staked delegated to account from others)
used: 0 us
available: 0 us
limit: 0 us
可以看到账户testnetstake
的抵押资源已被赎回,都已经为0了。
我们再看下testnetyy111
账户的情况:
yuyangdeMacBook-Pro:cleos yuyang$ cleos -u "http://jungle.cryptolions.io:18888" get account testnetyy111
permissions:
owner 1: 1 EOS6cnhSLTn4eSUEqS4nC8frYTsVsjeH2M3hos1TUeCgme2Yim5Q5
active 1: 1 EOS6Z7mUQeFC2cQTT3xMyZh2wsLQoHih1bTMgRhr3dbichprTi7Rc
memory:
quota: 3.377 MiB used: 191 KiB
net bandwidth:
staked: 100.0000 EOS (total stake delegated from account to self)
delegated: 0.0000 EOS (total staked delegated to account from others)
used: 1.11 KiB
available: 18.29 MiB
limit: 18.29 MiB
cpu bandwidth:
staked: 100.0000 EOS (total stake delegated from account to self)
delegated: 0.0000 EOS (total staked delegated to account from others)
used: 38.27 ms
available: 3.613 sec
limit: 3.651 sec
unstaking:
time of unstake request: 2018-09-13T09:39:42 (funds will be available in 71.65 hr)
from net bandwidth: 100.0000 EOS
from cpu bandwidth: 100.0000 EOS
total: 200.0000 EOS
EOS balances:
liquid: 8562.2670 EOS
staked: 200.0000 EOS
unstaking: 200.0000 EOS
total: 8962.2670 EOS
producers: <not voted>
出现了赎回信息unstaking
,共有200
EOS将在72
小时之内到账。
5. A以赠送的形式为B抵押资源
这里不再详细贴代码的。首先生成bin
字符串,这次将transfer
设为1
:
{
"code": "eosio",
"action": "delegatebw",
"args": {
"from": "testnetyy111",
"receiver": "testnetstake",
"stake_net_quantity": "100.0000 EOS",
"stake_cpu_quantity": "100.0000 EOS",
"transfer": 1,
}
}
按之前的流程,抵押成功后查看下testnetstake
账户情况:
yuyangdeMacBook-Pro:cleos yuyang$ cleos -u "http://jungle.cryptolions.io:18888" get account testnetstake
permissions:
owner 1: 1 EOS7RKPFD8228owd1BG1aiwYThSTLp3huiq9J3gWCwW3CjAoBtsJf
active 1: 1 EOS6KDP2yjhD5E6ESyviF2qgUoH2bsyy6ybm5KTrMJstb6Mbxy3up
memory:
quota: 1.552 MiB used: 3.365 KiB
net bandwidth:
staked: 100.0000 EOS (total stake delegated from account to self)
delegated: 0.0000 EOS (total staked delegated to account from others)
used: 0 bytes
available: 18.29 MiB
limit: 18.29 MiB
cpu bandwidth:
staked: 100.0000 EOS (total stake delegated from account to self)
delegated: 0.0000 EOS (total staked delegated to account from others)
used: 0 us
available: 3.651 sec
limit: 3.651 sec
producers: <not voted>
可以看到抵押资源的形式为staked
由于赎回资源需要使用到CPU和NET资源,所以我们无法将各100
EOS的资源全部赎回,否则会报错,这里我们只各赎回90
EOS的资源。
生成赎回资源的字符串,testnetstake
自己赎回资源:
{
"code": "eosio",
"action": "undelegatebw",
"args": {
"from": "testnetstake",
"receiver": "testnetstake",
"unstake_net_quantity": "90.0000 EOS",
"unstake_cpu_quantity": "90.0000 EOS"
}
}
按流程来,最后提交交易成功后,查看下testnetstake
的账户情况:
yuyangdeMacBook-Pro:cleos yuyang$ cleos -u "http://jungle.cryptolions.io:18888" get account testnetstake
permissions:
owner 1: 1 EOS7RKPFD8228owd1BG1aiwYThSTLp3huiq9J3gWCwW3CjAoBtsJf
active 1: 1 EOS6KDP2yjhD5E6ESyviF2qgUoH2bsyy6ybm5KTrMJstb6Mbxy3up
memory:
quota: 1.552 MiB used: 3.951 KiB
net bandwidth:
staked: 10.0000 EOS (total stake delegated from account to self)
delegated: 0.0000 EOS (total staked delegated to account from others)
used: 185 bytes
available: 1.829 MiB
limit: 1.829 MiB
cpu bandwidth:
staked: 10.0000 EOS (total stake delegated from account to self)
delegated: 0.0000 EOS (total staked delegated to account from others)
used: 3.275 ms
available: 361.9 ms
limit: 365.1 ms
unstaking tokens:
time of unstake request: 2018-09-13T10:15:54 (funds will be available in 71.94 hr)
from net bandwidth: 90.0000 EOS
from cpu bandwidth: 90.0000 EOS
total: 180.0000 EOS
producers: <not voted>
可以看到账户中的CPU和NET资源各只剩下10
EOS。并且出现了赎回信息,共有180
EOS将在72
小时之内到账。
我们继续试验,A以赠送的形式为B抵押资源,那么A是否可以将抵押给B的资源赎回并将EOS发送回自己的账户呢?
首先,testnetyy111
再以赠送的方式为testnetstake
抵押各100
EOS的资源:
{
"code": "eosio",
"action": "delegatebw",
"args": {
"from": "testnetyy111",
"receiver": "testnetstake",
"stake_net_quantity": "100.0000 EOS",
"stake_cpu_quantity": "100.0000 EOS",
"transfer": 1,
}
}
最后提交抵押请求成功后,查看下testnetstake
账户的情况:
yuyangdeMacBook-Pro:cleos yuyang$ cleos -u "http://jungle.cryptolions.io:18888" get account testnetstake
permissions:
owner 1: 1 EOS7RKPFD8228owd1BG1aiwYThSTLp3huiq9J3gWCwW3CjAoBtsJf
active 1: 1 EOS6KDP2yjhD5E6ESyviF2qgUoH2bsyy6ybm5KTrMJstb6Mbxy3up
memory:
quota: 1.552 MiB used: 3.627 KiB
net bandwidth:
staked: 110.0000 EOS (total stake delegated from account to self)
delegated: 0.0000 EOS (total staked delegated to account from others)
used: 185 bytes
available: 20.12 MiB
limit: 20.12 MiB
cpu bandwidth:
staked: 110.0000 EOS (total stake delegated from account to self)
delegated: 0.0000 EOS (total staked delegated to account from others)
used: 3.275 ms
available: 4.013 sec
limit: 4.016 sec
unstaking tokens:
time of unstake request: 2018-09-13T10:15:54 (funds will be available in 71.78 hr)
from net bandwidth: 90.0000 EOS
from cpu bandwidth: 90.0000 EOS
total: 180.0000 EOS
producers: <not voted>
可以看到各有110
EOS的抵押资源
我们使用testnetyy111
来赎回抵押给testnetstake
的资源:
{
"code": "eosio",
"action": "undelegatebw",
"args": {
"from": "testnetyy111",
"receiver": "testnetstake",
"unstake_net_quantity": "100.0000 EOS",
"unstake_cpu_quantity": "100.0000 EOS"
}
}
最后提交交易:
{
"code": 500,
"message": "Internal Service Error",
"error": {
"code": 3050003,
"name": "eosio_assert_message_exception",
"what": "eosio_assert_message assertion failure",
"details": [
{
"message": "assertion failure with message: insufficient staked net bandwidth",
"file": "wasm_interface.cpp",
"line_number": 930,
"method": "eosio_assert"
},
{
"message": "pending console output: ",
"file": "apply_context.cpp",
"line_number": 61,
"method": "exec_one"
}
]
}
}
可以看到抵押资源不足的错误提示,表明无法将赠送给他人的资源赎回给自己。
6. B自己抵押资源并且赎回
这部分内容就不演示了,通过上面的演示,肯定是可以的,大家可以自己动手试试。