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When working with the API Binance Rest API using WINTTP, you will encounter a situation where applications fail as a result of unusual termination of connection with the server. This error code 12030 usually indicates that the connection was unexpectedly terminated by the server. In this article, we will examine how to enforce the closure of the connection after receiving such an error.
understanding binance rest api connection API
Before you dive into a solution for enforcing the connection, it is necessary to understand how the Binance Rest Api processes the connections with WinhTTP. When using WinHTTP as a proxy or in the context of your app, you may need to build more connections to handle different scenarios at the same time. These connections may be closed after use if not properly managed.
Solution: Forcing the final connection
Follow the following steps to enforce the connection of the connection with an error code 12030:
1. Create connections and get information
First, make sure that there were no errors during the connection. If everything goes well, you may want to log in or print out information about each created connection for analysis purposes.
`Python
Import requirements
Define the URL and API endpoint parameters
URL = «
Initialize the dictionary with connection details
Connection_details = {
‘Method’: ‘Get’,
‘Params’: [1, 2, 3],
as needed to replace these values
}
Response = Requests.get (URL, Params = Connection_details)
If Response.Status_code == 200:
Print (“Connect Successful”)
otherwise:
Print (f «Failed to establish a connection: {responsive.Text}»))
`
2. Close the connection
If there is an error during the establishment process and the solution is not immediately obvious, consider the closure of the established connections. This step is crucial to maintaining performance and minimizing the use of resources.
`Python
Import
Get a list of currently open connections
Open_connences = []
For i in the range (1, 21):
Replace with a real number or logic to close all except the number specified
try:
Conn_details = {
‘Method’: ‘Get’,
‘Params’: [I],
as needed to replace the values
}
Response = Requests.get (URL + Stl (I), Params = Conn_details)
If Response.Status_code == 200:
Print (F «Connection {I} based»)
Open_connence.append (Conn_details [‘URL’])
In addition to the exception as E:
Record the error and continue with the next connection
Print (f «Failed to establish a connection {i}: {p (e)}»)
Close the specified number of connections (in this case 18)
For URL in open_connences [: only (open_connences) – only ([Conn [‘URL’] for Conn in Open_connections]) // 2]:
OS.System («Taskkill /IM» + URL)
Print (f «Connections closed. The remaining: {only (open_connections)}»))
`
Conclusion
Forcing the connection of the connection is the last option to be used prudently to minimize unnecessary use of resources and maintaining applications. Always record errors for the purpose of solving problems, ensuring that you understand the underlying cause of any problems that occur during the establishment or closure of the connection.
Renice responsibility : Before implementing this solution in production environments, make sure your system can handle the temporary termination of the process (eg Windows task manager). Be careful when using this method, as it may have uninterrupted consequences to the behavior of your application.
