nginx/njs

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A subset of JavaScript language to use in nginx

Is nginx/njs beginner-friendly?

We have not seen enough recent pull requests from outside contributors to nginx/njs to say how often they are merged. No beginner-friendly issue is open right now; the list below has the other issues we hold for it.

Stars
1.6k
Forks
245
Open beginner issues
0
Indexed issues
42
Avg merge
2d 5h
Merged PRs (30d)
6
Dominant language
C
License
BSD-2-Clause
Last GitHub push
Nov 2, 2026
Latest indexed
Sep 19, 2026
Contributing guide
Code of conduct
Beginner labels
help wanted

How to contribute to nginx/njs

  1. Read the contributing guide first: it says how the maintainers want changes proposed, tested and reviewed.
  2. Read its code of conduct: it covers issues and pull requests as well as chat.
  3. Your contributions will be published under the project's BSD-2-Clause license.
  4. Follow the repository to hear when a new beginner-friendly issue opens, or look through the other issues below.
Beginner friendly Everything
Open All

Issues somebody may already be working on are listed last. List everything by date

  • String.prototype.match with a global RegExp returns [] instead of null when nothing matches
    Open
    • Is something wrong?

    Difficulty 2/5 1-3 hours Newbie friendliness 78/100

    nginx/njs#1152 ·

  • Expression statement referencing an initialized let or const variable throws ReferenceError
    Open
    • Is something wrong?

    Difficulty 4/5 3-5 days Newbie friendliness 55/100

    nginx/njs#1151 ·

  • Array.prototype.toString forwards arguments to join as the separator
    Open
    • Is something wrong?

    Difficulty 2/5 1-3 hours Newbie friendliness 82/100

    nginx/njs#1150 ·

  • Modules: CR/LF in njs-produced nginx variables
    May be free again Open
    • Is something wrong?
    njs

    Difficulty 4/5 3-5 days Newbie friendliness 45/100

    nginx/njs#1127 · 2 comments · 1 assignee ·

  • Expose Nginx Cache Management API
    Open
    • Is something wrong?
    feature njs

    Difficulty 5/5 Over a week Newbie friendliness 30/100

    nginx/njs#1046 · 2 comments · 2 reactions ·

  • Add possibility to send early hints headers
    Open
    • Is something wrong?
    feature njs

    Difficulty 5/5 Over a week Newbie friendliness 25/100

    nginx/njs#896 · 2 comments ·

  • DNS module
    May be free again Open
    • Is something wrong?
    feature njs

    nginx/njs#853 · 3 comments · 1 assignee ·

  • Redis Client
    Open
    • Is something wrong?
    njs question

    Difficulty 5/5 Over a week Newbie friendliness 25/100

    nginx/njs#847 · 5 comments ·

  • Session Events (start, close)
    Open
    • Is something wrong?
    feature njs

    Difficulty 5/5 Over a week Newbie friendliness 25/100

    nginx/njs#842 · 2 comments ·

  • Support ES Module: import fs from 'njs:fs';
    May be free again Open
    • Is something wrong?
    feature njs

    nginx/njs#828 · 1 comment · 1 assignee ·

  • Add support for SSL certificate generation
    May be free again Open
    • Is something wrong?
    feature njs

    Difficulty 5/5 Over a week Newbie friendliness 25/100

    nginx/njs#766 · 2 comments ·

  • Synchronous version of `ngx.fetch`
    Open
    • Is something wrong?
    feature njs

    Difficulty 5/5 Over a week Newbie friendliness 25/100

    nginx/njs#762 · 9 comments · 1 reaction ·

  • Add support for a fetch-like API for TCP (and UDP) sockets.
    May be free again Open
    • Is something wrong?
    feature nginx-module njs

    nginx/njs#708 · 3 comments · 3 reactions · 1 assignee ·

  • Add Support for js_balancer like balancer_by_lua_block
    Open
    • Is something wrong?
    feature njs

    Difficulty 5/5 Over a week Newbie friendliness 25/100

    nginx/njs#696 · 2 comments · 3 reactions ·

  • Shared library and installation
    Open
    • Is something wrong?
    njs

    Difficulty 4/5 3-5 days Newbie friendliness 35/100

    nginx/njs#691 · 2 comments · 4 reactions ·

  • add optional globals __dirname and __filename similar to node.js
    Open
    • Is something wrong?
    njs

    Difficulty 4/5 3-5 days Newbie friendliness 45/100

    nginx/njs#672 ·

  • use gRPC client like ngx.fetch without subrequest
    Open
    • Is something wrong?
    njs

    Difficulty 5/5 Over a week Newbie friendliness 30/100

    nginx/njs#671 · 3 comments ·

  • JSDocs can't parse some njs-types
    Open
    • Is something wrong?
    njs

    Difficulty 4/5 3-5 days Newbie friendliness 30/100

    nginx/njs#664 ·

  • Add support for Error.cause (ES2022)
    Open
    • Is something wrong?
    feature njs

    Difficulty 4/5 3-5 days Newbie friendliness 35/100

    nginx/njs#653 ·

  • Profile JS code
    Open
    • Is something wrong?
    njs

    Difficulty 5/5 Over a week Newbie friendliness 20/100

    nginx/njs#637 · 2 comments ·

  • feature request: js_body_filter should have an option to operate on whole body
    Open
    • Is something wrong?
    feature njs

    Difficulty 4/5 3-5 days Newbie friendliness 35/100

    nginx/njs#585 · 1 comment · 2 reactions ·

  • Syntax for Submitting Subrequests to FastCGI
    Open
    • Is something wrong?
    answered njs question

    Difficulty 4/5 3-5 days Newbie friendliness 25/100

    nginx/njs#476 · 9 comments ·

  • Phase Declarative Syntax for js_set
    Open
    • Is something wrong?
    answered discussion njs question

    Difficulty 5/5 Over a week Newbie friendliness 30/100

    nginx/njs#475 · 2 comments ·

  • js_body_filter sends empty body response when buffering is on
    Open
    • Is something wrong?
    bug nginx-http-module njs

    Difficulty 4/5 3-5 days Newbie friendliness 38/100

    nginx/njs#411 · 6 comments · 1 reaction ·

  • Object.values() is not resolving getters
    Open
    • Is something wrong?
    bug njs

    Difficulty 3/5 1-2 days Newbie friendliness 40/100

    nginx/njs#401 ·

  • Support Web APIs.
    Open
    • Is something wrong?
    discussion njs

    Difficulty 5/5 Over a week Newbie friendliness 20/100

    nginx/njs#299 · 50 comments · 1 reaction ·

  • refactoring of the fs module.
    Open
    • Is something wrong?
    fs help wanted njs refactoring WIP

    Difficulty 4/5 3-5 days Newbie friendliness 25/100

    nginx/njs#279 · 32 comments · 1 reaction ·

  • fix own property lookup for primitive values
    Open
    • Is something wrong?
    bug njs test262

    Difficulty 4/5 3-5 days Newbie friendliness 35/100

    nginx/njs#250 ·

  • eval() support (strict only mode).
    Open
    • Is something wrong?
    ES5.1 feature help wanted test262

    Difficulty 5/5 Over a week Newbie friendliness 15/100

    nginx/njs#218 · 1 comment ·

  • CLI written in pure JS.
    Open
    • Is something wrong?
    CLI feature

    Difficulty 5/5 Over a week Newbie friendliness 25/100

    nginx/njs#216 ·

  • implicit var declarations.
    Open
    • Is something wrong?
    enhancement ES5.1 help wanted

    Difficulty 4/5 3-5 days Newbie friendliness 35/100

    nginx/njs#212 · 2 comments ·

  • Add support for global permanent variables
    Open
    • Is something wrong?
    feature nginx-module

    Difficulty 5/5 Over a week Newbie friendliness 25/100

    nginx/njs#191 · 3 comments · 13 reactions ·

  • NJS performance vs Chrome V8 & Firefox
    Open
    • Is something wrong?
    performance

    Difficulty 5/5 Over a week Newbie friendliness 20/100

    nginx/njs#185 · 4 comments ·

  • URL native object.
    Open
    • Is something wrong?
    feature help wanted

    Difficulty 5/5 Over a week Newbie friendliness 20/100

    nginx/njs#143 · 1 comment · 3 reactions ·

  • interactive shell: return the value of the last expression evaluated.
    Open
    • Is something wrong?
    CLI enhancement

    Difficulty 4/5 3-5 days Newbie friendliness 38/100

    nginx/njs#135 ·

  • export default function name() {...}
    Open
    • Is something wrong?
    enhancement ES6 help wanted

    Difficulty 4/5 3-5 days Newbie friendliness 35/100

    nginx/njs#121 · 12 comments ·

  • run main file as ES6 module
    Open
    • Is something wrong?
    enhancement ES6

    Difficulty 5/5 Over a week Newbie friendliness 25/100

    nginx/njs#115 · 1 comment ·

  • interactive shell: add an option to specify the maximum heap size
    Open
    • Is something wrong?
    CLI feature

    Difficulty 5/5 Over a week Newbie friendliness 30/100

    nginx/njs#67 ·

  • Potential memory leak in njs_fs_fd_read error paths
    Possibly taken Open
    • Is something wrong?
    njs

    Difficulty 3/5 1-2 days Newbie friendliness 67/100

    nginx/njs#1099 ·

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