Query against the JIRA API

Hi Everyone!

I've been dealing with this for a long time, I need to make a dashboard with the data from Jira.
My connection with Jira works fine but every time that I refresh the data it takes many time and I don't need all the information from Jira. Only with the last 6 months would be enough.

I need to make a query against the api of Jira that gives me this information, anyone know how to do it?

Thanks!

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issues	
	0	
		expand	"operations,versionedRepr…nsitions,renderedFields"
		id	"16605"
		self	"http://jira.myname.com/rest/api/2/issue/16605"
		key	"TZIR-1"
		fields	
			issuetype	{…}
			components	[]
			timespent	111600
			timeoriginalestimate	null
			description	null
			project	{…}
			fixVersions	[]
			aggregatetimespent	111600
			resolution	null
			aggregatetimeestimate	0
			resolutiondate	null
			updated	"2017-01-19T08:38:44.000+0100"
			status	{…}
	1	{…}
	2	{…}
	3	{…}
	4	{…}