I want write a http hadler(using subrequest) to deal with combine
response from mutiple backend. but “Emiller’s Advanced Topics In Nginx
Module Development - 2.3. Sequential subrequests” issue that "
might need to access the network, and if so, Nginx needs to return to
other work while it waits for a response. So we need to check the return
value of ngx_http_subrequest"
How to write a Parallel subrequests which several subrequests by POST
parallel rather than one by one after received preivous response ?
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