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{sub-section:description|text=}h3. Starting Headless Clients from Debug clients in Servoy Developer
When starting a Headless Client from a Debug Client in Servoy Developer, there are restrictions to which solution can be started in the Headless Client.
* Prior to Servoy 6.1.1, the Headless Client would always start with the Active Solution, regardless which solution would be specified
* As of Servoy 6.1.1 the specified solution will be honored, as long as the specified solution is the Active Solution or a solution/module included in the Active Solution

By default the Headless Client which is started will be a debug-able Headless Client. As there can only one debug-able Client of a specific type at the same time (so one debug-able Web Client, one debug-able Smart Client and one debug-able Headless Client), starting a new debug-able Headless Client will close an existent debug-able Headless Client.

It's possible to start non-debug-able Headless Clients using the Headless Client plugin while in Servoy Developer by sending in the value "nodebug" as the last value in the "solutionOpenMethodArgs" array parameter

{sub-section}\\ 

{table:id=|class=servoy sReturnTypes}{tr:style=height: 30px;}{th}Return Types{th}{tr}{tr}{td}{span:class=sWordList}[JSClient]{span}{td}{tr}{table}\\ 

{table:id=|class=servoy sSummary}{colgroup}{column:padding=0px|width=80px}{column}{column}{column}{colgroup}{tr:style=height: 30px;}{th:colspan=2}Method Summary{th}{tr}{tbody}{tr}{td}[JSClient]{td}{td}[#createClient]\(solutionName, username, password, solutionOpenMethodArgs)
Creates a headless client that will open the given solution.{td}{tr}{tbody}{tbody}{tr}{td}[JSClient]{td}{td}[#getClient]\(clientID)
Gets an existing headless client for the given client uuid.{td}{tr}{tbody}{table}\\ 

{table:id=function|class=servoy sDetail}{colgroup}{column:padding=0px|width=100%}{column}{colgroup}{tr:style=height: 30px;}{th:colspan=1}Method Details{th}{tr}{tbody:id=createClient|class=node}{tr:id=name}{td}h6.createClient{td}{tr}{tr:id=sig}{td}{span:style=float: left; margin-right: 5px;}[JSClient]{span}{span:id=iets|style=float: left; font-weight: bold;}createClient{span}{span:id=iets|style=float: left;}\(solutionName, username, password, solutionOpenMethodArgs){span}{td}{tr}{tr:id=des}{td}{sub-section:createClient_des|text=|trigger=button}{sub-section}{sub-section:createClient_des|trigger=none|class=sIndent}Creates a headless client that will open the given solution.{sub-section}{td}{tr}{builder-show:permission=edit}{tr:id=snc}{td}*Since*\\{sub-section:createClient_snc|text=|trigger=button}{sub-section}{sub-section:createClient_snc|trigger=none|class=sIndent} Replace with version info{sub-section}{td}{tr}{builder-show}{tr:id=prs}{td}*Parameters*\\{sub-section:createClient_prs|text=|trigger=button}{sub-section}{sub-section:createClient_prs|trigger=none|class=sIndent}\{[String]} solutionName
\{[String]} username
\{[String]} password
\{[Object]\[]} solutionOpenMethodArgs
{sub-section}{td}{tr}{tr:id=ret}{td}*Returns*\\{sub-section:createClient_ret|text=|trigger=button}{sub-section}{sub-section:createClient_ret|trigger=none|class=sIndent}[JSClient]{sub-section}{td}{tr}{builder-show:permission=edit}{tr:id=see}{td}*Also see*\\{sub-section:createClient_see|text=|trigger=button}{sub-section}{div:class=sIndent}{sub-section:createClient_see|trigger=none}{sub-section}{div}{td}{tr}{builder-show}{builder-show:permission=edit}{tr:id=link}{td}*External links*\\{sub-section:createClient_link|text=|trigger=button}{sub-section}{div:class=sIndent}{sub-section:createClient_link|trigger=none}{sub-section}{div}{td}{tr}{builder-show}{tr:id=sam}{td}*Sample*\\{sub-section:createClient_sam|text=|trigger=button}{sub-section}{div:class=sIndent}{sub-section:createClient_sam|trigger=none}{code:language=javascript}
// Creates a headless client that will open the given solution.
var headlessClient = plugins.headlessclient.createClient("someSolution", "user", "pass", null);
if (headlessClient != null && headlessClient.isValid()) { 
	var x = new Object();
	x.name = 'remote1';
	x.number = 10;
	headlessClient.queueMethod(null, "remoteMethod", [x], callback);
}
{code}{sub-section}{div}{td}{tr}{tr:class=lastDetailRow}{td}{td}{tr}{tbody}{tbody:id=getClient|class=node}{tr:id=name}{td}h6.getClient{td}{tr}{tr:id=sig}{td}{span:style=float: left; margin-right: 5px;}[JSClient]{span}{span:id=iets|style=float: left; font-weight: bold;}getClient{span}{span:id=iets|style=float: left;}\(clientID){span}{td}{tr}{tr:id=des}{td}{sub-section:getClient_des|text=|trigger=button}{sub-section}{sub-section:getClient_des|trigger=none|class=sIndent}Gets an existing headless client for the given client uuid.{sub-section}{td}{tr}{builder-show:permission=edit}{tr:id=snc}{td}*Since*\\{sub-section:getClient_snc|text=|trigger=button}{sub-section}{sub-section:getClient_snc|trigger=none|class=sIndent} Replace with version info{sub-section}{td}{tr}{builder-show}{tr:id=prs}{td}*Parameters*\\{sub-section:getClient_prs|text=|trigger=button}{sub-section}{sub-section:getClient_prs|trigger=none|class=sIndent}\{[String]} clientID
{sub-section}{td}{tr}{tr:id=ret}{td}*Returns*\\{sub-section:getClient_ret|text=|trigger=button}{sub-section}{sub-section:getClient_ret|trigger=none|class=sIndent}[JSClient]{sub-section}{td}{tr}{builder-show:permission=edit}{tr:id=see}{td}*Also see*\\{sub-section:getClient_see|text=|trigger=button}{sub-section}{div:class=sIndent}{sub-section:getClient_see|trigger=none}{sub-section}{div}{td}{tr}{builder-show}{builder-show:permission=edit}{tr:id=link}{td}*External links*\\{sub-section:getClient_link|text=|trigger=button}{sub-section}{div:class=sIndent}{sub-section:getClient_link|trigger=none}{sub-section}{div}{td}{tr}{builder-show}{tr:id=sam}{td}*Sample*\\{sub-section:getClient_sam|text=|trigger=button}{sub-section}{div:class=sIndent}{sub-section:getClient_sam|trigger=none}{code:language=javascript}
// Gets an existing headless client for the given client uuid.
var headlessClient = plugins.headlessclient.getClient("clientID");
if (headlessClient != null && headlessClient.isValid()) {
	 headlessClient.queueMethod(null, "someRemoteMethod", null, callback);
}
{code}{sub-section}{div}{td}{tr}{tr:class=lastDetailRow}{td}{td}{tr}{tbody}{table}