从 HTTP 请求收集数据
开启一个侦听器当包含 param 的消息到达时播放 param 参数值.
In[1]:=
![Click for copyable input](assets.zh/collect-data-from-http-requests/In_15.png)
listener =
ChannelListen["speak",
Speak["Arrived " <> ToString[Lookup[#Message, "param"]]] &,
Permissions -> "Public"]
Out[1]=
![](assets.zh/collect-data-from-http-requests/O_14.png)
从同一或其他使用 cURL 的机器上的终端向侦听器发送消息并接听侦听器.
In[2]:=
![Click for copyable input](assets.zh/collect-data-from-http-requests/In_16.png)
"curl \"" <>
URLBuild[listener["URL"], {"operation" -> "send",
"param" -> 123}] <> "\""
Out[2]=
![](assets.zh/collect-data-from-http-requests/O_15.png)
Out[3]=
![](assets.zh/collect-data-from-http-requests/O_16.png)
从网页浏览器发送信息.
In[4]:=
![Click for copyable input](assets.zh/collect-data-from-http-requests/In_17.png)
URLBuild[listener["URL"], {"operation" -> "send", "param" -> 456}]
Out[4]=
![](assets.zh/collect-data-from-http-requests/O_17.png)
Out[5]=
![](assets.zh/collect-data-from-http-requests/O_18.png)
从 Wolfram 系统发送新信息.
In[6]:=
![Click for copyable input](assets.zh/collect-data-from-http-requests/In_18.png)
ChannelSend[$WolframID <> ":speak", <|"param" -> 789|>]
Out[6]=
![](assets.zh/collect-data-from-http-requests/O_19.png)
侦听器接收到的全部数据.
In[7]:=
![Click for copyable input](assets.zh/collect-data-from-http-requests/In_19.png)
listener["Dataset"]
Out[7]=
![](assets.zh/collect-data-from-http-requests/O_20.png)