Visual FoxPro

Example: Http.CloseAllConnections method

See more HTTP Examples

Demonstrates how to call the CloseAllConnections method. Visual FoxPro

LOCAL lnSuccess
LOCAL loHttp
LOCAL lcUrl
LOCAL loSbJson
LOCAL lnStatusCode

lnSuccess = 0

loHttp = CreateObject('Chilkat.Http')

* Demonstrate 
lcUrl = "https://finnhub.io/api/v1/quote?symbol={$symbol}&token={$api_key}"

* When the request is sent, the {$symbol} is replaced with "MSFT"
* and the {$api_key} is replaced with "1234567890ABCDEF"
loHttp.SetUrlVar("symbol","MSFT")
loHttp.SetUrlVar("api_key","1234567890ABCDEF")

loSbJson = CreateObject('Chilkat.StringBuilder')
lnSuccess = loHttp.QuickGetSb(lcUrl,loSbJson)
IF (lnSuccess = 0) THEN
    ? loHttp.LastErrorText
    RELEASE loHttp
    RELEASE loSbJson
    CANCEL
ENDIF

lnStatusCode = loHttp.LastStatus
? loHttp.LastResponseHeader

* The response header contains this:

* Date: Tue, 19 Aug 2025 12:18:56 GMT
* Content-Type: application/json; charset=utf-8
* Transfer-Encoding: chunked
* Connection: keep-alive
* Content-Encoding: gzip

* The "Connection: keep-alive" header ensures the server keeps the connection open for subsequent requests.
* If the server responds with a "Connection: close" header, it indicates the connection will be closed after the response. 
* Consequently, Chilkat will also close the connection, requiring a new one to be established for any subsequent requests to the same server.

* If your application uses the same HTTP object instance to send requests to a different server, a new connection will be established with that server.
* Existing connections remain open, with Chilkat maintaining up to 10 open connections. 
* If all 10 connections are in use, Chilkat will close the least recently used connection to connect to a new server.

* Your application can explicitly close all open connections like this:
lnSuccess = loHttp.CloseAllConnections()
IF (lnSuccess = 0) THEN
    ? loHttp.LastErrorText
    RELEASE loHttp
    RELEASE loSbJson
    CANCEL
ENDIF

? "Success."

RELEASE loHttp
RELEASE loSbJson