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router.go
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router.go
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package main
import (
"fmt"
"net/http"
)
// router routes requests
type router struct {
cfg params
}
// handler http responses
func (rtr *router) ServeHTTP(w http.ResponseWriter, r *http.Request) {
switch r.URL.Path {
case "/api/v1/detect":
switch r.Method {
case http.MethodPost:
// allow ajax reponses from browser
w.Header().Set("Access-Control-Allow-Origin", rtr.cfg.CorsOrigin)
proceedImage(w, r)
default:
ShowImageForm(w)
}
case "/api/v1/pdf_detect":
switch r.Method {
case http.MethodPost:
w.Header().Set("Access-Control-Allow-Origin", rtr.cfg.CorsOrigin)
proceedPDF(w, r)
case http.MethodGet:
ShowPDFForm(w)
default:
HandleError(w, fmt.Errorf("bad request. make http POST request instead"))
return
}
default:
HandleError(w, fmt.Errorf(`
<html>
<body>
Bad request. Invalid endpoint. Avalaibled endpoints:
<div><a href="/api/v1/detect">/api/v1/detect</a> - for detect in image</div>
<div><a href="/api/v1/pdf_detect">/api/v1/pdf_detect</a> - for detect in pdf</div>
</body>
</html>
`))
return
}
}