add content_type property in request
add content_type property in request

lixxu/sanic,ashleysommer/sanic,channelcat/sanic,Tim-Erwin/sanic,ashleysommer/sanic,channelcat/sanic,channelcat/sanic,lixxu/sanic,yunstanford/sanic,yunstanford/sanic,lixxu/sanic,channelcat/sanic,ashleysommer/sanic,r0fls/sanic,yunstanford/sanic,yunstanford/sanic,lixxu/sanic,r0fls/sanic,Tim-Erwin/sanic