Hi I am trying to write a new plugin that dynamically generates upstream url (based on header value). So far I successfully changed upstream host using: ngx.ctx.balancer_address but I need to change path for upstream url too, do you know how can I achieve this ? I found somewhere that ngx.var.upstream_url but it gives me an error: “variable “upstream_url” not found for writing;”

Sorry for late reply but thanks :slight_smile: for pointing this variable. I will try it tonight and let post solution for future reference if works.

A more thorough explanation can be found here: [image] Changing upstream url Questions Hi, As of 0.11.0, and as documented in the Changelog and Upgrade path of that version, the way to update the upstream URL is via the $upstream_uri NGINX variable, accessible in the Lua-land as ngx.var.upstream_uri. The upstream URI is now determined via the Nginx $upstream_uri variable. Custom plugins using the ngx.req.set_uri() API will not be taken into consideration anymore. One must now set the ngx.var.upstream_uri variable from the Lua land. #2519 Additionally, you can access the ngx.c…

Thanks for your response, however I had to park this plugin as we do not need it currently. Might come back to it in near future and will try out your solution. Thanks again.

Dynamic Path from plugin

Questions

thibaultcha April 27, 2018, 5:07pm 4

A more thorough explanation can be found here:

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Dynamic Path from plugin

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