reference:

nginx.org/en/docs/njs/ An official nginx docs for njs.github.com/nginx/njs An official read-only mirror of  which is updated hourly.

关于安装参考：

日常使用linux过程中，有时候我们需要从网上clone代码，大多数使用的是git，有些使用hg clone，比如说

hg clone  -y install mercurial# whereis hghg: /usr/bin/hg /usr/share/man/man1/hg.1.gz# rpm -qf /usr/bin/hgmercurial-2.6.2-11.el7.x86_64

编译安装nginx,我的系统已经安装了。简单模拟下

:~/software# lsnginx-1.19.7  nginx-1.19.7.tar.gz  ngx_http_proxy_connect_module# hg clone  directory: njsrequesting all changesadding changesetsadding manifestsadding file changesadded 1621 changesets with 6098 changes to 463 filesupdating to branch default275 files updated, 0 files merged, 0 files removed, 0 files unresolved# lsnginx-1.19.7  nginx-1.19.7.tar.gz  ngx_http_proxy_connect_module  njs

重新编译增加参数：

/root/software/njs/nginx

注意这个--add-module=/root/software/njs/nginx

# cd nginx-1.19.7/# ./configure --prefix=/usr/local/nginx --user=nginx --group=nginx --with-http_stub_status_module --with-http_ssl_module --add-module=/root/software/ngx_http_proxy_connect_module --with-http_realip_module --with-threads --with-stream --with-stream_ssl_preread_module  --with-stream_ssl_module --add-module=/root/software/njs/nginx# make# make install

先给一个最简单的配置：

centos7 root@parallels:/usr/local/nginx/conf# cat nginx.confworker_processes  1;events {    worker_connections  1024;}http {    include       mime.types;    default_type  application/octet-stream;    sendfile        on;    keepalive_timeout  65;    log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '                      '$status $body_bytes_sent "$http_referer" '                      '"$http_user_agent" "$http_x_forwarded_for"';    server {        listen       80;        server_name  localhost;        location / {            root   html;            index  index.html index.htm;        }        error_page   500 502 503 504  /50x.html;        location = /50x.html {            root   html;        }    }}

centos7 root@parallels:/usr/local/nginx/conf# /usr/local/nginx/sbin/nginx -tnginx: the configuration file /usr/local/nginx/conf/nginx.conf syntax is oknginx: configuration file /usr/local/nginx/conf/nginx.conf test is successfulcentos7 root@parallels:/usr/local/nginx/conf# /usr/local/nginx/sbin/nginx -s reloadcentos7 root@parallels:/usr/local/nginx/conf# curl -I  200 OKServer: nginx/1.19.7Date: Mon, 22 Mar 2021 11:50:52 GMTContent-Type: text/htmlContent-Length: 612Last-Modified: Sun, 28 Feb 2021 06:47:57 GMTConnection: keep-aliveETag: "603b3c9d-264"Accept-Ranges: bytes

参考：

搞2个测试的js

centos7 root@parallels:~# cat /usr/local/nginx/conf/njs/utils.jsfunction version(r) {    r.return(200, njs.version);}export default {version}centos7 root@parallels:~# cat /usr/local/nginx/conf/njs/example.jsfunction hello(r) {  r.return(200, "Hello world!\n");}export default {hello}

centos7 root@parallels:/usr/local/nginx/conf# cat nginx.conf

worker_processes  1;events {    worker_connections  1024;}http {    include       mime.types;    default_type  application/octet-stream;    sendfile        on;    keepalive_timeout  65;    log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '                      '$status $body_bytes_sent "$http_referer" '                      '"$http_user_agent" "$http_x_forwarded_for"';   js_import /usr/local/nginx/conf/njs/utils.js;   js_import main from /usr/local/nginx/conf/njs/example.js;   server {     listen 80;     location = /version {        js_content utils.version;     }     location / {       js_content main.hello;     }  }}

注意这个路径

   js_import /usr/local/nginx/conf/njs/utils.js;   js_import main from /usr/local/nginx/conf/njs/example.js;

centos7 root@parallels:~# curl

0.5.2

centos7 root@parallels:~# curl

Hello world!