nginx lua-resty-http no route to host issue

[Grcn H]

Hi there,

I'm trying to make an http request using lua-resty-http.

I created a simple get api in https://requestb.in

I can make a request using the address: https://requestb.in/snf2ltsn

However, when I try to do this in nginx I'm getting error  `no route to host`

My nginx.conf file is:

    worker_processes  1;

    error_log logs/error.log;

    events {

        worker_connections 1024;

    }

    http {

        lua_package_path "$prefix/lua/?.lua;;";

        server {

            listen 8080;

            location / {

                resolver 8.8.8.8;

                default_type text/html;

                lua_code_cache off; #enables livereload for development

                content_by_lua_file ./lua/test.lua;

            }

        }

    }

and my Lua code is 

    local http = require "resty.http"

    local httpc = http.new()

    

    --local res, err = httpc:request_uri("https://requestb.in/snf2ltsn", {ssl_verify = false,method = "GET" })

    

          local res, err = httpc:request_uri("https://requestb.in/snf2ltsn", {

            method = "GET",

            body = "a=1&b=2",

            headers = {

              ["Content-Type"] = "application/x-www-form-urlencoded",

            }

          })

How can I fix this Issue?

any clue?

Thanks in advance

[Yichun Zhang (agentzh)]

Hello!

On Fri, Oct 13, 2017 at 6:11 PM, Grcn H wrote:
>
> However, when I try to do this in nginx I'm getting error `no route to
> host`
>

I can see 2 possibilities:

1. The DNS server returns an IP address your network does not support
(like an IPv6 address), or
2. Your local network settings may have some issues.

You can try this instead:

resolver 8.8.8.8 ipv6=off;

BTW, temporarily enabling the nginx debugging logs can give your more
details about the DNS resolving results. You can use the
openresty-debug package temporarily and set `error_log logs/error.log
debug;` in your `nginx.conf` to enable debugging logs BTW.

Regards,
Yichun

[Nithish Reddy]

Hi am also using lua-resty-http:

it is giving error as "failed to request: example.com could not be resolved (110: Operation timed out)"

 local http = require "resty.http"

                                 local httpc = http.new ()

                                 local res, err = httpc:request_uri(

                                    "https://example.com/sample/samplePage/test"

                                        ,{

            method = "GET",

            body = "a=1&b=2",

            headers = {

              ["Content-Type"] = "application/x-www-form-urlencoded",

            }

          }

                                )

                                if not res then

                                        ngx.say("failed to request: ", err)

                                        return

                                end

                                if 200 == res.status then

                                    ngx.exit (res.status)

                                end

                                if 1 == res.body then

                                    ngx.say (" valid request ")

                                else

                                    ngx.say (" invalid request ")

                                end

Any solution ???