Regarding lua resty upload

vladamirsvider · 2014-12-04T14:50:01+00:00

Hello! On Wed, Dec 3, 2014 at 11:13 AM, Guido Accardo wrote: > r2 = ngx.location.capture('/dev/', { args = arguments, share_all_vars = true > }) >...

Regarding lua resty upload

vladamirsvider

Hi ,

I am planning to use lua-resty-upload to stream the incoming requests to the backend proxy pass. and i need the responses back from the backend

Ex:

server {
        location /test {
            content_by_lua ''; 
            # use lua-resty-upload in content phase
            proxy_pass http://backend;
       }
}

i didnt find any examples in the github https://github.com/openresty/lua-resty-upload , is it feasible ?

Cheers,
Vladamir Svider

agentzh

Hello!

On Wed, Dec 3, 2014 at 10:49 PM,  vladamirsvider wrote:
>   I am planning to use lua-resty-upload to stream the incoming requests to
> the backend proxy pass. and i need the responses back from the backend
>

The standard ngx_proxy module does not support streaming request at
all. So you cannot really use ngx_proxy with lua-resty-upload for
this. You should use ngx_lua's cosocket API to talk to your backend
server. Not sure if there's a ready-to-use lua-resty-http library
(based on cosockets) out there that really supports this. But it's
technically doable by the cosocket API or adjusting an existing
lua-resty-http library for it.

Regards,
-agentzh

vladamirsvider

Thanks agentzh i will try using the lua-resty-http.

On Thursday, December 4, 2014 11:58:39 AM UTC-8, agentzh wrote:

Hello!

On Wed, Dec 3, 2014 at 10:49 PM, vladamirsvider wrote:
> I am planning to use lua-resty-upload to stream the incoming requests to
> the backend proxy pass. and i need the responses back from the backend
>

The standard ngx_proxy module does not support streaming request at
all. So you cannot really use ngx_proxy with lua-resty-upload for
this. You should use ngx_lua's cosocket API to talk to your backend
server. Not sure if there's a ready-to-use lua-resty-http library
(based on cosockets) out there that really supports this. But it's
technically doable by the cosocket API or adjusting an existing
lua-resty-http library for it.

Regards,
-agentzh

james_9172

Hi,

My implementation of lua-resty-http allows you to pass an iterator in place of the request body, and provides a "get_client_body_reader" function if you wish to pass the current request body:

https://github.com/pintsized/lua-resty-http#get_client_body_reader

This is also used by the "proxy_request" wrapper: https://github.com/pintsized/lua-resty-http#proxy_request

Does this get you what you need?

James.

On 5 December 2014 at 06:01, <vladam...@gmail.com> wrote:

Thanks agentzh i will try using the lua-resty-http.

On Thursday, December 4, 2014 11:58:39 AM UTC-8, agentzh wrote:
Hello!

On Wed, Dec 3, 2014 at 10:49 PM, vladamirsvider wrote:
> I am planning to use lua-resty-upload to stream the incoming requests to
> the backend proxy pass. and i need the responses back from the backend
>

The standard ngx_proxy module does not support streaming request at
all. So you cannot really use ngx_proxy with lua-resty-upload for
this. You should use ngx_lua's cosocket API to talk to your backend
server. Not sure if there's a ready-to-use lua-resty-http library
(based on cosockets) out there that really supports this. But it's
technically doable by the cosocket API or adjusting an existing
lua-resty-http library for it.

Regards,
-agentzh

.

James Hurst

ja...@pintsized.co.uk

vladamirsvider

Hi James,

This is what i exactly needed , i will try and run some tests . Really appreciate your help.

Cheers,
Vladamir

On Friday, December 5, 2014 3:15:28 AM UTC-8, James Hurst wrote:

Hi,

My implementation of lua-resty-http allows you to pass an iterator in place of the request body, and provides a "get_client_body_reader" function if you wish to pass the current request body:

https://github.com/pintsized/lua-resty-http#get_client_body_reader

This is also used by the "proxy_request" wrapper: https://github.com/pintsized/lua-resty-http#proxy_request

Does this get you what you need?

James.

On 5 December 2014 at 06:01, <vladami...@gmail.com> wrote:
Thanks agentzh i will try using the lua-resty-http.

On Thursday, December 4, 2014 11:58:39 AM UTC-8, agentzh wrote:
Hello!

On Wed, Dec 3, 2014 at 10:49 PM, vladamirsvider wrote:
> I am planning to use lua-resty-upload to stream the incoming requests to
> the backend proxy pass. and i need the responses back from the backend
>

The standard ngx_proxy module does not support streaming request at
all. So you cannot really use ngx_proxy with lua-resty-upload for
this. You should use ngx_lua's cosocket API to talk to your backend
server. Not sure if there's a ready-to-use lua-resty-http library
(based on cosockets) out there that really supports this. But it's
technically doable by the cosocket API or adjusting an existing
lua-resty-http library for it.

Regards,
-agentzh

.

--
James Hurst
ja...@pintsized.co.uk