// ServeHTTP is called whenever there is a new request.
// This is quite similar to JavaEE Servlet interface.
func (h *MyHandler) ServeHTTP(ctx *fasthttp.RequestCtx) {
// In the future we can use requester can detect request spammers!
// requester := ctx.RemoteAddr()
// Increase request count
count := &(h.requests)
atomic.AddUint64(count, 1)
if ctx.IsGet() {
url := ctx.URI()
operations, format, err, invalid := ParseURI(url, h.imageSource, h.watermarker)
if err != nil {
ctx.NotFound()
logging.Debug(err)
return
}
if invalid != nil {
ctx.Error(invalid.Error(), 400)
return
}
blob, err := h.operator.GetBlob(operations...)
if err != nil {
ctx.NotFound()
logging.Debug(err)
} else {
ctx.SetContentType("image/" + format)
ctx.Write(blob)
logging.Debug("Blob returned")
}
} else if ctx.IsPost() {
// POST is currently unused so we can use this for testing
h.RetrieveHello(ctx)
logging.Debug("Post request received")
}
}