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Object HttpRequest

Description:
HttpRequest is an object that can be used to transfer data between a Web client and a Web server.

The client can use this object to send any HTTP request. This object has multiple versions. This documentation only describes the interface for versions MSXML2.ServerXMLHTTP.6.0 and MSXML2.XMLHTTP.6.0.
 
The MSXML2.ServerXMLHTTP.6.0 version has additional methods, that allow communication authentication using user certificates.
 
Any data format can be received or sent. In case of receiving data in the XML format, the received response can be analyzed using the Microsoft XML Document Object Model (DOM). See: How to read common XML files in the application.
Properties and methods:
abort()Terminates and closes the HttpRequest object
getAllResponseHeaders()Reads the values of all the HTTP request headers
getOption()Returns information about the requested transmission property
getResponseHeader()Retrieves the value of a specific HTTP request header
onreadystatechangeSpecifies the function to be called, when the readyState property is changed
readyStateReports the status of the request
open()Sets the method, URL address and authentication information for the requested data transfer
responseBodyRepresents the message body as a byte array.
responseStreamRepresents the message body as IStream.
responseTextRepresents the message body as text.
responseXMLRepresents the response entity body as parsed by Microsoft XML Core Services (MSXML).
send()Sends an HTTP request to the server
setOption()Sets the requested transmission property
setProxy()Specifies proxy settings
setProxyCredentials()Specify proxy authentication credentials
setRequestHeader()Retrieves the value of a specific HTTP request header
setTimeouts()Specifies timeout settings for resolving the domain name, establishing the connection to the server, sending the data, and receiving the response
statusReturns the HTTP request status code of the request
waitForResponse()Allows to suspend execution the requesting server while waiting for an asynchronous send operation to complete
PROMOTIC 9.0.31 SCADA system documentation MICROSYS, spol. s r.o.

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