Executing a task with context parameters using metaServlet

Procedure

Open the Windows command line or Linux terminal, and go to the following directory: ./org.talend.administrator/WEB-INF/classes.
Run:
- MetaServletCaller.bat to call the metaServlet on Windows.
- MetaServletCaller.sh to call the metaServlet on Linux.
Type in the following script to execute task 1 with the context values of your choice :
```
MetaServletCaller.bat 
--tac-url=http://localhost:8080/org.talend.administrator 
--json-params=
{
"actionName":"runTask",
"authPass":"TAC_Admin_password",
"authUser":"TAC_Admin_username",
"taskId":1,
"mode":"synchronous",
"context":{"firstname":"Robert","lastname":"Durst"}
}
```
The response from the Talend Administration Center server is displayed in the command lines:

Example

The execution information is displayed in the Task execution details console of Talend Administration Center:

Example

"context":{"firstname":"Kimmy","lastname":"Schmidt"} in the script above specifies the values for the context parameters: firstname and lastname, you must follow the syntax below:
```
"context":{"varname1":"varvalue"}
```
Multiple context parameters should be separated by comma(s). You should replace the parameters used in the command with what they are in real contexts.

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