Hello,
I'm glad to announce a new release of NGINX JavaScript module (njs).
This release proceeds to extend the coverage of ECMAScript
specifications.
Notable new features:
- Promises API for "fs" module.
: var fs = require('fs').promises;
: fs.readFile('/file/path').then(data => r.return(200, data));
- detached r.subrequest(): Running a subrequest in the log phase
: nginx.conf:
: ...
: js_set $js_log js_log;
: ...
: log_format subrequest_log "...$js_log";
: access_log /log/path.log subrequest_log;
:
: nginx.js:
: function js_log(r) {
: r.subrequest('/_log', {detached:true});
: return '';
: }
You can learn more about njs:
- Overview and introduction: http://nginx.org/en/docs/njs/
- Presentation: https://youtu.be/Jc_L6UffFOs
- Using node modules with njs:
http://nginx.org/en/docs/njs/node_modules.html
Feel free to try it and give us feedback on:
- Github: https://github.com/nginx/njs/issues
- Mailing list: http://mailman.nginx.org/mailman/listinfo/nginx-devel
Changes with njs 0.3.9 03 Mar 2020
nginx modules:
*) Feature: added detached mode for r.subrequest(). Responses to
detached subrequests are ignored. Unlike ordinary subrequests,
a detached subrequest can be created inside a variable handler.
Core:
*) Feature: added promises API for "fs" module.
Thanks to Artem S. Povalyukhin.
*) Feature: extended "fs" module. Added access(), symlink(),
unlink(),
realpath() and friends.
Thanks to Artem S. Povalyukhin.
*) Improvement: introduced memory-efficient ordinary arrays.
*) Improvement: lexer refactoring.
*) Bugfix: fixed matching of native functions in backtraces.
*) Bugfix: fixed callback invocations in "fs" module.
Thanks to Artem S. Povalyukhin.
*) Bugfix: fixed Object.getOwnPropertySymbols().
*) Bugfix: fixed heap-buffer-overflow in njs_json_append_string().
*) Bugfix: fixed encodeURI() and decodeURI() according to
the specification.
*) Bugfix: fixed Number.prototype.toPrecision().
*) Bugfix: fixed handling of space argument in JSON.stringify().
*) Bugfix: fixed JSON.stringify() with Number() and String() objects.
*) Bugfix: fixed Unicode Escaping in JSON.stringify() according
to specification.
*) Bugfix: fixed non-native module importing.
Thanks to ??? (Hong Zhi Dao).
*) Bugfix: fixed njs.dump() with the Date() instance in a container.