fetch_info

该 fetch_info命令返回有关此服务器当前从网络中获取的对象的信息，以及有多少对等端具有该信息。它也可以用来重置当前的提取。 该fetch_info方法是一个管理员命令不能由非特权用户运行。 请求格式的示例：

{
    "id": 91,
    "command": "fetch_info",
    "clear": false
}

{
    "method": "fetch_info",
    "params": [
        {
            "clear": false
        }
    ]
}

#Syntax: fetch_info [clear]
streamd fetch_info

该请求包含以下参数：

Field	类型	描述
clear	Boolean	如果true，重置当前提取。否则，只会获取正在进行的提取状态。

一个成功回应的例子：

{
   "result" : {
      "info" : {
         "348928" : {
            "hash" : "C26D432B06F84861BCACD7942EDC3FE0B2E1DEB966A9E516A0FD275A375C2010",
            "have_header" : true,
            "have_state" : false,
            "have_transactions" : true,
            "needed_state_hashes" : [
               "BF8DC6B1E10D1D3565BF0649075D22EBFD34F751AFCC0E53E81D74786BC88922",
               "34E37A71CB51A12C73A435250E6A6349F7884C7EEBA6B88FA31F0244E967E88F",
               "BFB7D3008A7D61FD6A0538D1C2E70CFB94CE8DC66606319C372F278A48629765",
               "41C0C61D701FB1EA586F0EF1FC7A91FEC476D979589DA60507F05C13F7C21975",
               "6DDE8840A2C3C7FF05E5FFEE4D06408694C16A8357338FE0C4581DC3D8A00BBA",
               "6C69D833B582C849917806FA009518832BB50E900E43716FD7CC1966428DD0CF",
               "1EDC020CFC4AF19B625C52E20B66D6AE672821CCC461E8A9C457A3B2955657F7",
               "FC0616A66A2B0589CA513F3341D4EA51E782C4601E5072308478E3CC19264640",
               "19FC607B5DE1B64681A676EC1ED5507B9555B0E098CD9D898320297DE1A64033",
               "5E128D3FC990074E35687387A14AA12D9FD287E5AB57CB9B2FD83DE635DF5CA9",
               "DE72820F3981770F2AA8770BC233B80661F1A452819D8529008875FF8DED87A9",
               "3ACB84BEE2C45556351FF60FD787D235C9CF5623FB8A35B01446B773598E7CC0",
               "0DD3A8DF69874148057F1F2BF305442FF2E89A76A08B4CC8C051E2ED69B874F3",
               "4AE9A9C4F12A5BD0355037DA40A0B145420A2168A9FEDE43E643BD13062F8ECE",
               "08CBF8CFFEC207F5AC4E4F24BC447011FD8C79D25B344281FBFB4732D7058ED4",
               "779B2577C5C4BAED6657421448EA506BBF50F86BE363E0924127C4EA17A58BBE"
            ],
            "peers" : 2,
            "timeouts" : 0
         }
      },
      "status" : "success"
   }
}

Loading: "/etc/streamd.cfg"
Connecting to 127.0.0.1:5005
{
   "result" : {
      "info" : {
         "348928" : {
            "hash" : "C26D432B06F84861BCACD7942EDC3FE0B2E1DEB966A9E516A0FD275A375C2010",
            "have_header" : true,
            "have_state" : false,
            "have_transactions" : true,
            "needed_state_hashes" : [
               "BF8DC6B1E10D1D3565BF0649075D22EBFD34F751AFCC0E53E81D74786BC88922",
               "34E37A71CB51A12C73A435250E6A6349F7884C7EEBA6B88FA31F0244E967E88F",
               "BFB7D3008A7D61FD6A0538D1C2E70CFB94CE8DC66606319C372F278A48629765",
               "41C0C61D701FB1EA586F0EF1FC7A91FEC476D979589DA60507F05C13F7C21975",
               "6DDE8840A2C3C7FF05E5FFEE4D06408694C16A8357338FE0C4581DC3D8A00BBA",
               "6C69D833B582C849917806FA009518832BB50E900E43716FD7CC1966428DD0CF",
               "1EDC020CFC4AF19B625C52E20B66D6AE672821CCC461E8A9C457A3B2955657F7",
               "FC0616A66A2B0589CA513F3341D4EA51E782C4601E5072308478E3CC19264640",
               "19FC607B5DE1B64681A676EC1ED5507B9555B0E098CD9D898320297DE1A64033",
               "5E128D3FC990074E35687387A14AA12D9FD287E5AB57CB9B2FD83DE635DF5CA9",
               "DE72820F3981770F2AA8770BC233B80661F1A452819D8529008875FF8DED87A9",
               "3ACB84BEE2C45556351FF60FD787D235C9CF5623FB8A35B01446B773598E7CC0",
               "0DD3A8DF69874148057F1F2BF305442FF2E89A76A08B4CC8C051E2ED69B874F3",
               "4AE9A9C4F12A5BD0355037DA40A0B145420A2168A9FEDE43E643BD13062F8ECE",
               "08CBF8CFFEC207F5AC4E4F24BC447011FD8C79D25B344281FBFB4732D7058ED4",
               "779B2577C5C4BAED6657421448EA506BBF50F86BE363E0924127C4EA17A58BBE"
            ],
            "peers" : 2,
            "timeouts" : 0
         }
      },
      "status" : "success"
   }
}

响应遵循标准格式，成功结果包含以下字段：

Field	Type	Description
info	Object	正在提取的对象的地图以及正在提取的对象的状态。正在提取的分类账可以通过其序列号来标识; 分类账和其他正在提取的对象也可以通过它们的哈希来识别。

描述正在读取的字段可能会随时更改，恕不另行通知。以下字段可能包含在内：

Field	Type	Description
hash	String	正在提取的项目的散列。
have_header	Boolean	对于分类帐，该服务器是否已经获得分类账的抬头部分。
have_transactions	Boolean	对于分类帐，该服务器是否已获得该分类账的交易部分。
needed_state_hashes	Array of (Hash) Strings	此项目仍需要状态对象的哈希值。如果需要超过16个，则响应只包含前16个。
peers	Number	拥有此商品的同行人数。
timeouts	Number	获取此项目的次数导致超时（2.5秒）。

可能的错误：

• 任何通用错误类型。