在Blockcypher上广播原始事务，在请求后得到一个错误

Question

我有一个原始的比特币交易，我想用Blockcypher API广播，我正在使用axios发送POST请求：

var axios = require('axios')

axios.post('https://api.blockcypher.com/v1/bcy/test/txs/send', {
    "tx": "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"
  })
  .then(function (response) {
    console.log(response);
  })
  .catch(function (response) {
    console.log(response);
  });

在终端中运行这个程序时，我会收到一个错误：

{ data: { error: 'Couldn\'t deserialize request: json: cannot unmarshal string into Go value of type pooch.JSONTx' }

知道我的帖子怎么了吗？我试着用tx而不是"tx“来发布，但它仍然不起作用。在医生上，他们建议这样做：

var pushtx = {
  tx: "01000000011935b41d12936df99d322ac8972b74ecff7b79408bbccaf1b2eb8015228beac8000000006b483045022100921fc36b911094280f07d8504a80fbab9b823a25f102e2bc69b14bcd369dfc7902200d07067d47f040e724b556e5bc3061af132d5a47bd96e901429d53c41e0f8cca012102152e2bb5b273561ece7bbe8b1df51a4c44f5ab0bc940c105045e2cc77e618044ffffffff0240420f00000000001976a9145fb1af31edd2aa5a2bbaa24f6043d6ec31f7e63288ac20da3c00000000001976a914efec6de6c253e657a9d5506a78ee48d89762fb3188ac00000000"
};

$.post('https://api.blockcypher.com/v1/bcy/test/txs/push', JSON.stringify(pushtx))
  .then(function(d) {console.log(d)});

但是当我这样做的时候，我会得到一个错误：

TypeError: undefined is not a function

所以我认为使用axios更容易，因为我至少得到了Blockcypher的响应。任何帮助都是非常感谢的！

Answer 1

完全披露:BlockCypher的开发者在这里辩护。首先，根据注释中的格雷格建议，在第一种情况下，使用/txs/send端点，我们希望得到一个TX骨架。这一点在文档的创建事务部分中有更清楚的概述。

在您的情况下，使用/txs/push应该有效，尽管我也遇到了一个错误。为了进行调查，我首先检查了/txs/decode端点，这是调试的第一步，因为它将向您展示服务器如何反序列化原始事务。你可以在这里阅读更多关于它的内容。。

var decodetx = {
  tx: "01000000011935b41d12936df99d322ac8972b74ecff7b79408bbccaf1b2eb8015228beac8000000006b483045022100921fc36b911094280f07d8504a80fbab9b823a25f102e2bc69b14bcd369dfc7902200d07067d47f040e724b556e5bc3061af132d5a47bd96e901429d53c41e0f8cca012102152e2bb5b273561ece7bbe8b1df51a4c44f5ab0bc940c105045e2cc77e618044ffffffff0240420f00000000001976a9145fb1af31edd2aa5a2bbaa24f6043d6ec31f7e63288ac20da3c00000000001976a914efec6de6c253e657a9d5506a78ee48d89762fb3188ac00000000"
};

$.post('https://api.blockcypher.com/v1/bcy/test/txs/decode', JSON.stringify(decode))
  .then(function(d) {console.log(d)});

这对我有效，返回解码(但不是推！)交易：

{
  "block_height": -1,
  "block_index": -1,
  "hash": "4e6dfb1415b4fba5bd257c129847c70fbd4e45e41828079c4a282680528f3a50",
  "addresses": [
    "CEztKBAYNoUEEaPYbkyFeXC5v8Jz9RoZH9",
    "C1rGdt7QEPGiwPMFhNKNhHmyoWpa5X92pn"
  ],
  "total": 4988000,
  "fees": 12000,
  "size": 226,
  "preference": "high",
  "relayed_by": "54.213.170.147, 127.0.0.1",
  "received": "2016-02-17T20:16:43.124983132Z",
  "ver": 1,
  "lock_time": 0,
  "double_spend": false,
  "vin_sz": 1,
  "vout_sz": 2,
  "confirmations": 0,
  "inputs": [
    {
      "prev_hash": "c8ea8b221580ebb2f1cabc8b40797bffec742b97c82a329df96d93121db43519",
      "output_index": 0,
      "script": "483045022100921fc36b911094280f07d8504a80fbab9b823a25f102e2bc69b14bcd369dfc7902200d07067d47f040e724b556e5bc3061af132d5a47bd96e901429d53c41e0f8cca012102152e2bb5b273561ece7bbe8b1df51a4c44f5ab0bc940c105045e2cc77e618044",
      "output_value": 5000000,
      "sequence": 4294967295,
      "addresses": [
        "CEztKBAYNoUEEaPYbkyFeXC5v8Jz9RoZH9"
      ],
      "script_type": "pay-to-pubkey-hash",
      "age": 386562
    }
  ],
  "outputs": [
    {
      "value": 1000000,
      "script": "76a9145fb1af31edd2aa5a2bbaa24f6043d6ec31f7e63288ac",
      "addresses": [
        "C1rGdt7QEPGiwPMFhNKNhHmyoWpa5X92pn"
      ],
      "script_type": "pay-to-pubkey-hash"
    },
    {
      "value": 3988000,
      "script": "76a914efec6de6c253e657a9d5506a78ee48d89762fb3188ac",
      "spent_by": "892fd7b36c1c3a2e5edb9b4a5d4ffd9ba74d78d3acf3b249991bd8d10a287dbd",
      "addresses": [
        "CEztKBAYNoUEEaPYbkyFeXC5v8Jz9RoZH9"
      ],
      "script_type": "pay-to-pubkey-hash"
    }
  ]
}

这里一切都很好。因此，我尝试使用/txs/push，这一次，通过cURL收集返回中的错误消息：

curl -d '{"tx":"01000000011935b41d12936df99d322ac8972b74ecff7b79408bbccaf1b2eb8015228beac8000000006b483045022100921fc36b911094
280f07d8504a80fbab9b823a25f102e2bc69b14bcd369dfc7902200d07067d47f040e724b556e5bc3061af132d5a47bd96e901429d53c41e0f8cca012102152e2bb5b273561ece7bbe8b1d
f51a4c44f5ab0bc940c105045e2cc77e618044ffffffff0240420f00000000001976a9145fb1af31edd2aa5a2bbaa24f6043d6ec31f7e63288ac20da3c00000000001976a914efec6de6c2
53e657a9d5506a78ee48d89762fb3188ac00000000"}' https://api.blockcypher.com/v1/bcy/test/txs/push
{"error": "Error validating transaction: Transaction with hash 4e6dfb1415b4fba5bd257c129847c70fbd4e45e41828079c4a282680528f3a50 already exists.."}

果然，根据该错误消息，该事务已经存在于我们的内部testnet中，如下所示：

https://live.blockcypher.com/bcy/tx/4e6dfb1415b4fba5bd257c129847c70fbd4e45e41828079c4a282680528f3a50/

我想你是想推动一项已经被推进的原始交易。如果您想测试事务创建，我建议在我们的testnet上生成您自己的地址：

http://dev.blockcypher.com/#generate-address-endpoint

你可以用我们的水龙头把一些硬币送到这些地址：

http://dev.blockcypher.com/#testing (或者通过web接口这里：https://accounts.blockcypher.com/blockcypher-faucet )。

然后按照“创建事务”中概述的步骤：

http://dev.blockcypher.com/#creating-transactions

希望这能帮上忙！