1. 前言

前面我们使用cleos完成过转账的功能，这篇文章我们尝试使用RPC API的方式进行转账。在测试网络/主网络转账EOS，在测试网络转账代币。

官方文档：https://github.com/EOSBlock/EOS-Tutorials/blob/master/EN/transfer-tokens-using-RPC.md

2. 大致流程

使用RPC API转账的流程如下：

abi_json_to_bin 将转账信息由json格式序列化为bin格式字符串
get_info 获取当前最新的区块编号
get_block 根据区块编号获取区块详情
get_required_keys(可省略) 传入当前拥有的公钥、bin字符串，区块等信息，筛选出签署交易需要的公钥
sign_transaction 传入上面获取的相关参数，通过钱包中私钥对交易进行签署
push_transaction 根据第五步获取的签名信息，将交易提交到区块链上

3. 详细流程

3.1 在测试网络转账EOS

3.1.1 查看余额

先查看两个交易账号的EOS余额：

api
http://jungle.cryptolions.io:18888/v1/chain/get_currency_balanceparams
{"code":"eosio.token", "account":"testnetyy111", "symbol":"eos"}
{"code":"eosio.token", "account":"testneths111", "symbol":"eos"}returntestnetyy111
["9641.6587 EOS"
]
testneths111
["0.0000 EOS"
]

3.1.2 将交易信息由JSON格式序列化为BIN格式字符串

从testnetyy111转100 EOS给testneths111：

api
http://jungle.cryptolions.io:18888/v1/chain/abi_json_to_binparams
{"code":"eosio.token","action":"transfer","args":{"from":"testnetyy111","to":"testneths111","quantity":"100.0000 EOS", "memo":"hi there"}}return
{"binargs": "1042f03eab99b1ca1042c02dab99b1ca40420f000000000004454f5300000000086869207468657265"
}

获取到binargs

3.1.3 获取当前最新的区块编号

api
http://jungle.cryptolions.io:18888/v1/chain/get_infoparams
无return
{"server_version": "cc9decff","chain_id": "038f4b0fc8ff18a4f0842a8f0564611f6e96e8535901dd45e43ac8691a1c4dca","head_block_num": 13800828,"last_irreversible_block_num": 13800496,"last_irreversible_block_id": "00d29430d9809c633ddf3cc5c01613b58105394502e9846515c87274765c6d05","head_block_id": "00d2957ccb42d63c2d643c0a1b0b98da69c462b94a62ed434a0e565035bab90b","head_block_time": "2018-09-11T05:39:10.000","head_block_producer": "lioninjungle","virtual_block_cpu_limit": 200000000,"virtual_block_net_limit": 1048576000,"block_cpu_limit": 199900,"block_net_limit": 1048576,"server_version_string": "v1.2.4-dirty"
}

获取到head_block_num

3.1.4 根据区块编号获取区块详情

api
http://jungle.cryptolions.io:18888/v1/chain/get_blockparams
{"block_num_or_id":"13800828"}return
{"timestamp": "2018-09-11T05:39:10.000","producer": "lioninjungle","confirmed": 0,"previous": "00d2957b0e343f2ffa7640591ac1f27ed0ac89d2869e0a9c0576f065a31ee1cc","transaction_mroot": "0000000000000000000000000000000000000000000000000000000000000000","action_mroot": "22546c1e4c12d53a55c60d0ccb7196baa0afb05993612d2cf0591d7bf8fd8d34","schedule_version": 219,"new_producers": null,"header_extensions": [],"producer_signature": "SIG_K1_KXFvmHtXMnDhp8V7CpHuGoYch3whWorL2Fr7nArevzTmC2tXsKRXHCkHiF9myRpbbx3cTShba64jWveKATr49k3Bonp7aw","transactions": [],"block_extensions": [],"id": "00d2957ccb42d63c2d643c0a1b0b98da69c462b94a62ed434a0e565035bab90b","block_num": 13800828,"ref_block_prefix": 171729965
}

获取到timestamp 和ref_block_prefix

3.1.5 筛选出签署交易需要的公钥

钱包中可能有很多公钥存在，调用此方法可以筛选出完成此次交易需要的公钥。如果已明确应该使用的公钥，那可以省略此方法。

首先调用API打开并解锁钱包，然后获取所有的公钥。这部分内容在EOS开发(八)RPC API都有使用介绍。

参数说明：

available_keys 钱包中的公钥
account 合约名称。这里是转账EOS，使用的是eosio.token
actor 调用者。这里相当于转账方
permission 使用的权限类型
data 之前生成的bin字符串
name 调用的合约方法。这里调用的是转账方法transfer
expiration 过期时间。这里将timestamp加上了20分钟。可以根据需要来增加时长
ref_block_num 前面获取的最新区块号
ref_block_prefix 前面获取的ref_block_prefix

api
http://jungle.cryptolions.io:18888/v1/chain/get_required_keysparams
{"available_keys": ["EOS6cnhSLTn4eSUEqS4nC8frYTsVsjeH2M3hos1TUeCgme2Yim5Q5","EOS6Z7mUQeFC2cQTT3xMyZh2wsLQoHih1bTMgRhr3dbichprTi7Rc","EOS7RkP6aevKjN1CiKSqo44Gi1HhPYBczGFgSduBXBD7uHUFhg2qC","EOS7sGb8DfutGgpuMmnDhG1d2stVETfpkrHQ6HhVRJJaPXRqLay2E"],"transaction": {"actions": [{"account": "eosio.token","authorization": [{"actor": "testnetyy111","permission": "active"}],"data": "1042f03eab99b1ca1042c02dab99b1ca40420f000000000004454f5300000000086869207468657265","name": "transfer"}],"context_free_actions": [],"context_free_data": [],"delay_sec": 0,"expiration": "2018-09-11T05:59:10.000","max_kcpu_usage": 0,"max_net_usage_words": 0,"ref_block_num": 13800828,"ref_block_prefix": 171729965,"signatures": []}
}return
{"required_keys": ["EOS6Z7mUQeFC2cQTT3xMyZh2wsLQoHih1bTMgRhr3dbichprTi7Rc"]
}

获取到实际需要的公钥EOS6Z7mUQeFC2cQTT3xMyZh2wsLQoHih1bTMgRhr3dbichprTi7Rc

3.1.6 签署交易

参数说明：

ref_block_num 前面获取的最新区块号
ref_block_prefix 前面获取的ref_block_prefix
expiration 过期时间。这里将timestamp加上了20分钟。可以根据需要来增加时长
account 合约名称。这里是转账EOS，使用的是eosio.token
name 调用的合约方法。这里调用的是转账方法transfer
actor 调用者。这里相当于转账方
permission 使用的权限类型
data 之前生成的bin字符串
EOS6Z7mUQeFC2cQTT3xMyZh2wsLQoHih1bTMgRhr3dbichprTi7Rc 签署此交易的公钥。实际上是由钱包中对应的私钥来签
038f4b0fc8ff18a4f0842a8f0564611f6e96e8535901dd45e43ac8691a1c4dca 链id。注明当前处于主网/测试网/私有网络。这里显示的为测试网络

api
http://127.0.0.1:8888/v1/wallet/sign_transactionparams
[{"ref_block_num": 13800828,"ref_block_prefix": 171729965,"expiration": "2018-09-11T05:59:10.000","actions": [{"account": "eosio.token","name": "transfer","authorization": [{"actor": "testnetyy111","permission": "active"}],"data": "1042f03eab99b1ca1042c02dab99b1ca40420f000000000004454f5300000000086869207468657265"}],"signatures": []},["EOS6Z7mUQeFC2cQTT3xMyZh2wsLQoHih1bTMgRhr3dbichprTi7Rc"], "038f4b0fc8ff18a4f0842a8f0564611f6e96e8535901dd45e43ac8691a1c4dca"
]return
{"expiration": "2018-09-11T05:59:10","ref_block_num": 38268,"ref_block_prefix": 171729965,"max_net_usage_words": 0,"max_cpu_usage_ms": 0,"delay_sec": 0,"context_free_actions": [],"actions": [{"account": "eosio.token","name": "transfer","authorization": [{"actor": "testnetyy111","permission": "active"}],"data": "1042f03eab99b1ca1042c02dab99b1ca40420f000000000004454f5300000000086869207468657265"}],"transaction_extensions": [],"signatures": ["SIG_K1_K9eDsXiqEMkJs8wPwEjiN6hL1h2Bm3gGQtUheidFczWNdBmDF24AUuPmiosi9CwtEW3jPFPao7HYWLJ63ic3TggjnoKtJF"],"context_free_data": []
}

获取到signatures

3.1.7 提交交易

参数说明：

expiration 过期时间。这里将timestamp加上了20分钟。可以根据需要来增加时长
ref_block_num 前面获取的最新区块号
ref_block_prefix 前面获取的ref_block_prefix
account 合约名称。这里是转账EOS，使用的是eosio.token
name 调用的合约方法。这里调用的是转账方法transfer
actor 调用者。这里相当于转账方
permission 使用的权限类型
data 之前生成的bin字符串
signatures 签署交易后生成的签名字符串

api
http://jungle.cryptolions.io:18888/v1/chain/push_transactionparams
{"compression": "none","transaction": {"expiration": "2018-09-11T05:59:10.000","ref_block_num": 13800828,"ref_block_prefix": 171729965,"context_free_actions": [],"actions": [{"account": "eosio.token","name": "transfer","authorization": [{"actor": "testnetyy111","permission": "active"}],"data": "1042f03eab99b1ca1042c02dab99b1ca40420f000000000004454f5300000000086869207468657265"}],"transaction_extensions": []},"signatures": ["SIG_K1_K9eDsXiqEMkJs8wPwEjiN6hL1h2Bm3gGQtUheidFczWNdBmDF24AUuPmiosi9CwtEW3jPFPao7HYWLJ63ic3TggjnoKtJF"]
}return
{"transaction_id": "4efb2687ef59c9a677da68264eb409d71aca66d7e3df4b35ee34f59e13783ffc","processed": {"id": "4efb2687ef59c9a677da68264eb409d71aca66d7e3df4b35ee34f59e13783ffc","receipt": {"status": "executed","cpu_usage_us": 1537,"net_usage_words": 17},"elapsed": 1537,"net_usage": 136,"scheduled": false,"action_traces": [{"receipt": {"receiver": "eosio.token","act_digest": "45d232c72b5ca003627bc411ff9881286fd411239ceac528b98e6fb33a50919e","global_sequence": 32142292,"recv_sequence": 1716642,"auth_sequence": [["testnetyy111",37]],"code_sequence": 3,"abi_sequence": 3},"act": {"account": "eosio.token","name": "transfer","authorization": [{"actor": "testnetyy111","permission": "active"}],"data": {"from": "testnetyy111","to": "testneths111","quantity": "100.0000 EOS","memo": "hi there"},"hex_data": "1042f03eab99b1ca1042c02dab99b1ca40420f000000000004454f5300000000086869207468657265"},"elapsed": 942,"cpu_usage": 0,"console": "","total_cpu_usage": 0,"trx_id": "4efb2687ef59c9a677da68264eb409d71aca66d7e3df4b35ee34f59e13783ffc","inline_traces": [{"receipt": {"receiver": "testnetyy111","act_digest": "45d232c72b5ca003627bc411ff9881286fd411239ceac528b98e6fb33a50919e","global_sequence": 32142293,"recv_sequence": 16,"auth_sequence": [["testnetyy111",38]],"code_sequence": 3,"abi_sequence": 3},"act": {"account": "eosio.token","name": "transfer","authorization": [{"actor": "testnetyy111","permission": "active"}],"data": {"from": "testnetyy111","to": "testneths111","quantity": "100.0000 EOS","memo": "hi there"},"hex_data": "1042f03eab99b1ca1042c02dab99b1ca40420f000000000004454f5300000000086869207468657265"},"elapsed": 100,"cpu_usage": 0,"console": "","total_cpu_usage": 0,"trx_id": "4efb2687ef59c9a677da68264eb409d71aca66d7e3df4b35ee34f59e13783ffc","inline_traces": []},{"receipt": {"receiver": "testneths111","act_digest": "45d232c72b5ca003627bc411ff9881286fd411239ceac528b98e6fb33a50919e","global_sequence": 32142294,"recv_sequence": 7,"auth_sequence": [["testnetyy111",39]],"code_sequence": 3,"abi_sequence": 3},"act": {"account": "eosio.token","name": "transfer","authorization": [{"actor": "testnetyy111","permission": "active"}],"data": {"from": "testnetyy111","to": "testneths111","quantity": "100.0000 EOS","memo": "hi there"},"hex_data": "1042f03eab99b1ca1042c02dab99b1ca40420f000000000004454f5300000000086869207468657265"},"elapsed": 23,"cpu_usage": 0,"console": "","total_cpu_usage": 0,"trx_id": "4efb2687ef59c9a677da68264eb409d71aca66d7e3df4b35ee34f59e13783ffc","inline_traces": []}]}],"except": null}
}

3.1.8 查询转账完成后的余额

testnetyy111  "9541.6587 EOS"
testneths111  "100.0000 EOS"

3.2 在测试网络转账代币

3.2.1 先查询余额

api
http://jungle.cryptolions.io:18888/v1/chain/get_currency_balanceparams
{"code":"testnetyy111", "account":"testnetyy111", "symbol":"ray"}
{"code":"testnetyy111", "account":"testneths111", "symbol":"ray"}returntestnetyy111
["99999800.0000 RAY"
]
testneths111
["200.0000 RAY"
]

3.2.2 将交易信息由JSON格式序列化为BIN格式字符串

从testnetyy111转100 RAY给testneths111：

api
http://jungle.cryptolions.io:18888/v1/chain/abi_json_to_binparams
{"code":"testnetyy111","action":"transfer","args":{"from":"testnetyy111","to":"testneths111","quantity":"100.0000 RAY", "memo":"hello there"}}return
{"binargs": "1042f03eab99b1ca1042c02dab99b1ca40420f000000000004524159000000000b68656c6c6f207468657265"
}

3.2.3 获取当前最新的区块编号

api
http://jungle.cryptolions.io:18888/v1/chain/get_infoparams
无return
{"server_version": "cc9decff","chain_id": "038f4b0fc8ff18a4f0842a8f0564611f6e96e8535901dd45e43ac8691a1c4dca","head_block_num": 13807658,"last_irreversible_block_num": 13807329,"last_irreversible_block_id": "00d2aee1e209a3a21f0c1bf3a9b3b79322c27cb48353d9e28f17286b0daaa58b","head_block_id": "00d2b02afdedb3e0f487026946a7a56be8f331aecebb8b04faff03cf566a0fb6","head_block_time": "2018-09-11T06:36:50.000","head_block_producer": "astraealions","virtual_block_cpu_limit": 200000000,"virtual_block_net_limit": 1048576000,"block_cpu_limit": 199900,"block_net_limit": 1048576,"server_version_string": "v1.2.4-dirty"
}

3.2.4 根据区块编号获取区块详情

api
http://jungle.cryptolions.io:18888/v1/chain/get_blockparams
{"block_num_or_id":"13807658"}return
{"timestamp": "2018-09-11T06:36:50.000","producer": "astraealions","confirmed": 0,"previous": "00d2b029ac9a6eb269c6ea4f8bb3f2961d948f1f0ca3cd0cc4640ceadc95d37b","transaction_mroot": "0000000000000000000000000000000000000000000000000000000000000000","action_mroot": "0b1b4f510e0cdd272052fe0f3f9b1e74c7c6f83253409d943c3394eefbb7762e","schedule_version": 219,"new_producers": null,"header_extensions": [],"producer_signature": "SIG_K1_KZZ4giS7WxbSt3i6rcdZqgBWGzpE9XXq8A88kkSDDt9s8MbB2Vs1VEdMDoGYAeqTVUqX25xszU2cBwfHkbEvooPnZSm5FR","transactions": [],"block_extensions": [],"id": "00d2b02afdedb3e0f487026946a7a56be8f331aecebb8b04faff03cf566a0fb6","block_num": 13807658,"ref_block_prefix": 1761773556
}

3.2.5 筛选出签署交易需要的公钥

这里省略这一步了，因为我们明确知道需要的公钥为EOS6Z7mUQeFC2cQTT3xMyZh2wsLQoHih1bTMgRhr3dbichprTi7Rc

3.2.6 签署交易

这里的参数account变为testnetyy111，因为其是代币合约

api
http://127.0.0.1:8888/v1/wallet/sign_transactionparams
[{"ref_block_num": 13807658,"ref_block_prefix": 1761773556,"expiration": "2018-09-11T06:56:50.000","actions": [{"account": "testnetyy111","name": "transfer","authorization": [{"actor": "testnetyy111","permission": "active"}],"data": "1042f03eab99b1ca1042c02dab99b1ca40420f000000000004524159000000000b68656c6c6f207468657265"}],"signatures": []},["EOS6Z7mUQeFC2cQTT3xMyZh2wsLQoHih1bTMgRhr3dbichprTi7Rc"], "038f4b0fc8ff18a4f0842a8f0564611f6e96e8535901dd45e43ac8691a1c4dca"
]return
{"expiration": "2018-09-11T06:56:50","ref_block_num": 45098,"ref_block_prefix": 1761773556,"max_net_usage_words": 0,"max_cpu_usage_ms": 0,"delay_sec": 0,"context_free_actions": [],"actions": [{"account": "testnetyy111","name": "transfer","authorization": [{"actor": "testnetyy111","permission": "active"}],"data": "1042f03eab99b1ca1042c02dab99b1ca40420f000000000004524159000000000b68656c6c6f207468657265"}],"transaction_extensions": [],"signatures": ["SIG_K1_KXFAydwhD6u74pxQcTakiGCjtSuUw9PBsFb7ETxh1ULqjFkXqfyaoL34TkEmZi7iBTgUQZqUJRcVYYkrLWZxbVybRUArNX"],"context_free_data": []
}

3.2.7 提交交易

api
http://jungle.cryptolions.io:18888/v1/chain/push_transactionparams
{"compression": "none","transaction": {"expiration": "2018-09-11T06:56:50.000","ref_block_num": 13807658,"ref_block_prefix": 1761773556,"context_free_actions": [],"actions": [{"account": "testnetyy111","name": "transfer","authorization": [{"actor": "testnetyy111","permission": "active"}],"data": "1042f03eab99b1ca1042c02dab99b1ca40420f000000000004524159000000000b68656c6c6f207468657265"}],"transaction_extensions": []},"signatures": ["SIG_K1_KXFAydwhD6u74pxQcTakiGCjtSuUw9PBsFb7ETxh1ULqjFkXqfyaoL34TkEmZi7iBTgUQZqUJRcVYYkrLWZxbVybRUArNX"]
}return
{"transaction_id": "27c120548fee4e0ca31bc779ba85eb61ea4a2c5204043b696800d6cdb11da48b","processed": {"id": "27c120548fee4e0ca31bc779ba85eb61ea4a2c5204043b696800d6cdb11da48b","receipt": {"status": "executed","cpu_usage_us": 1176,"net_usage_words": 17},"elapsed": 1176,"net_usage": 136,"scheduled": false,"action_traces": [{"receipt": {"receiver": "testnetyy111","act_digest": "28d41460e20878bc412281b80c4d46ce174a4a48e8c7caf9ef28a13383e72d9e","global_sequence": 32149270,"recv_sequence": 17,"auth_sequence": [["testnetyy111",40]],"code_sequence": 1,"abi_sequence": 1},"act": {"account": "testnetyy111","name": "transfer","authorization": [{"actor": "testnetyy111","permission": "active"}],"data": {"from": "testnetyy111","to": "testneths111","quantity": "100.0000 RAY","memo": "hello there"},"hex_data": "1042f03eab99b1ca1042c02dab99b1ca40420f000000000004524159000000000b68656c6c6f207468657265"},"elapsed": 782,"cpu_usage": 0,"console": "","total_cpu_usage": 0,"trx_id": "27c120548fee4e0ca31bc779ba85eb61ea4a2c5204043b696800d6cdb11da48b","inline_traces": [{"receipt": {"receiver": "testneths111","act_digest": "28d41460e20878bc412281b80c4d46ce174a4a48e8c7caf9ef28a13383e72d9e","global_sequence": 32149271,"recv_sequence": 8,"auth_sequence": [["testnetyy111",41]],"code_sequence": 1,"abi_sequence": 1},"act": {"account": "testnetyy111","name": "transfer","authorization": [{"actor": "testnetyy111","permission": "active"}],"data": {"from": "testnetyy111","to": "testneths111","quantity": "100.0000 RAY","memo": "hello there"},"hex_data": "1042f03eab99b1ca1042c02dab99b1ca40420f000000000004524159000000000b68656c6c6f207468657265"},"elapsed": 14,"cpu_usage": 0,"console": "","total_cpu_usage": 0,"trx_id": "27c120548fee4e0ca31bc779ba85eb61ea4a2c5204043b696800d6cdb11da48b","inline_traces": []}]}],"except": null}
}

3.2.8 查询转账完成后的余额

testnetyy111 "99999700.0000 RAY"
testneths111 "300.0000 RAY"

转自：https://blog.csdn.net/akai9898/article/details/83447788

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使用RPC的接口转账

1. 前言

2. 大致流程

3. 详细流程

3.1 在测试网络转账EOS

3.1.1 查看余额

3.1.2 将交易信息由JSON格式序列化为BIN格式字符串

3.1.3 获取当前最新的区块编号

3.1.4 根据区块编号获取区块详情

3.1.5 筛选出签署交易需要的公钥

3.1.6 签署交易

3.1.7 提交交易

3.1.8 查询转账完成后的余额

3.2 在测试网络转账代币

3.2.1 先查询余额

3.2.2 将交易信息由JSON格式序列化为BIN格式字符串

3.2.3 获取当前最新的区块编号

3.2.4 根据区块编号获取区块详情

3.2.5 筛选出签署交易需要的公钥

3.2.6 签署交易

3.2.7 提交交易

3.2.8 查询转账完成后的余额

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