# n-captcha **Repository Path**: mirrors_struCoder/n-captcha ## Basic Information - **Project Name**: n-captcha - **Description**: nodejs captcha - **Primary Language**: Unknown - **License**: Not specified - **Default Branch**: master - **Homepage**: None - **GVP Project**: No ## Statistics - **Stars**: 0 - **Forks**: 0 - **Created**: 2020-08-18 - **Last Updated**: 2026-02-14 ## Categories & Tags **Categories**: Uncategorized **Tags**: None ## README # n-captcha nodejs captcha How to install --------------- - brew install pkg-config if you don't have - brew install cairo if you don't have - npm install n-captcha --save Config ------- ```javascript { //verify code length textLen: 4, //verify code color color: '#2897CE', //verify code bg-color background: '#DFDFDF', lineWidth: 3, fontSize: 3, imageW: 200, imageH: 80 //identify level level: 3, //bezier Curve color bcColor: '#97BFB2', beforReqEndHooks: function(){} } ``` How to use ---------- if you use `express` or `koa` you can use it as middleware ####You server code ```javascript var app = express()(); var ncaptcha = require('n-captcha'); app.use(function(req, res, next) { if (req.url === '/captcha') { var options = { beforReqEndHooks: function(verifyCode) { if (req.session) req.session.ncaptcha = verifyCode; //do something you need } } var verifyCode = ncaptcha(options, res); } else { next(); } }) // route app.post('/p/doLogin', function() { var ncaptcha = req.body.ncaptcha; if (ncaptcha !== req.session.ncaptcha) { res.json({code: 1000, msg: 'make sure that captcha is right'}) } }) ``` ####You client code ```html

``` license -------- MIT