HTTP handler to return graph as image

[jjd27]

Can we have an HTTP handler that returns a PNG, please?

e.g. I'd like to go to http://perf/graph?width=640&height=480&som=41&xaxis=build_number&x_as_seq=on&legend_position=se&v_product=XenServer&f_branch=1&v_build_tag=&v_dom0_memory_static_max=752&v_machine_type=Dell+PowerEdge+2950&v_memsize=256&v_vmtype=dom0 and get just the graph as a PNG.

[chengsun]

This could be achieved with something like PhantomJS. We'd have to do the
rendering server-side.

On Aug 8, 2012 5:24 PM, "Jonathan Davies" [email protected] wrote:

Can we have an HTTP handler that returns a PNG, please?

e.g. I'd like to go to
http://perf/graph?som=41&xaxis=build_number&x_as_seq=on&legend_position=se&v_product=XenServer&f_branch=1&v_build_tag=&v_dom0_memory_static_max=752&v_machine_type=Dell+PowerEdge+2950&v_memsize=256&v_vmtype=dom0and
get just the graph as a PNG.

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[rokstrnisa]

This could be achieved by drawing the graph normally, and then automatically pressing the Get Image button. However, the file returned has a weird extension, and needs to be saved as a PNG.

[chengsun]

I thought that Jonathan meant an URL which can be embedded in another page, i.e. <img src="http://perf/graph?...">.

[jjd27]

Yes, that's what I mean. So the http handler for "graph" would actually return the PNG in the http response.

[rokstrnisa]

Ah, then Cheng's suggestion is probably best.