LaunchHTTPRequest()

This function calls (launches) a given URL (http request) and returns true if the request returns without error.

Please see the Introduction chapter for some usage instructions.

---------------------------------------------------------------------
-- LaunchHTTPRequest
-- 
-- Launches given URL.
--
-- Parameter:
--   sURL        complete url
--
-- return value:
--   boolean     true  - request returned with code 200
--               false - request returned with code <> 200
----------------------------------------------------------------------
function LaunchHTTPRequest ( sURL )
    PBXScript.OutputTrace ("------> LaunchHTTPRequest ( sURL = '" .. sURL .. "' )")

    local bReturn = false

    local webreq = require "PBXWebRequest"
    if (webreq ~= nil) then
    
        local hsession, reponseCode
    
        hsession = webreq.new()
        hsession:URL(sURL)
        hsession:HttpVerb(PBXHttpVerbGet)

        local vBefore, vAfter, nDuration
        vBefore = os.time()

        responseCode = hsession:Execute()

        vAfter    = os.time()
        nDuration = os.difftime(vAfter, vBefore)

        PBXScript.OutputTrace("Web request returned after " .. math.floor(nDuration) .. " seconds the response code " .. responseCode)
    
        bReturn = (responseCode == 200)
    
    end

    PBXScript.OutputTrace ("bReturn = " .. tostring(bReturn))
    PBXScript.OutputTrace ("<------ LaunchHTTPRequest")

    return bReturn
end

This function makes use of the Server Script API class PBXWebRequest for the web request and the function PBXScript.OutputTrace() to write trace information into the SwyxServer trace file.

This function was converted from VBScript into Lua from the initially posted version in this forum topic.

By Tom Wellige

June 5, 2022

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Function Collection (Lua)

Introduction

Functions

LaunchHTTPRequest()

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