func handleRequest()

in proxy/protocol/grpc/reverse_proxy.go [198:231]

31 lines of code
7 McCabe index (conditional complexity)


func handleRequest(w http.ResponseWriter, r *http.Request, inv *invocation.Invocation, ir *invocation.Response) (*http.Response, error) {
	if ir != nil {
		if ir.Err != nil {
			WriteErrorResponse(inv, w, r, ir.Status, ir.Err)
			return nil, ir.Err
		}
		if inv.Endpoint == "" {
			WriteErrorResponse(inv, w, r, http.StatusBadGateway, protocol.ErrUnknown)
			return nil, protocol.ErrUnknown
		}
		if ir.Result == nil {
			if ir.Err != nil {
				WriteErrorResponse(inv, w, r, http.StatusBadGateway, ir.Err)
				return nil, ir.Err
			}
			WriteErrorResponse(inv, w, r, http.StatusBadGateway, ErrNilResponse)
			return nil, protocol.ErrUnknown
		}
		resp, ok := ir.Result.(*http.Response)
		if !ok {
			err := errors.New("invocationResponse result is not type *http.Response")
			WriteErrorResponse(inv, w, r, http.StatusBadGateway, err)
			return nil, err
		}
		//transparent proxy
		copyChassisResp2HttpResp(w, resp)

		return resp, nil
	} else {
		WriteErrorResponse(inv, w, r, http.StatusBadGateway, protocol.ErrUnExpectedHandlerChainResponse)
		return nil, protocol.ErrUnExpectedHandlerChainResponse
	}

}