koajs/ onerror
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About the developer
131 Stars 
17 Forks 
MIT License 
63 Commits 
4 Opened issues 
Description
an error handler for koa, hack ctx.onerror
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koa-onerror
an error handler for koa, hack ctx.onerror.
different with koa-error: - we can not just use try catch to handle all errors, steams' and events' errors are directly handle by
ctx.onerror, so if we want to handle all errors in one place, the only way i can see is to hack
ctx.onerror. - it is more customizable.
install
npm install koa-onerror
Usage
const fs = require('fs');
const koa = require('koa');
const onerror = require('koa-onerror');
const app = new koa();
onerror(app);
app.use(ctx => {
// foo();
ctx.body = fs.createReadStream('not exist');
});
Options
onerror(app, options);
- all: if options.all exist, ignore negotiation
- text: text error handler
- json: json error handler
- html: html error handler
- redirect: if accepct html, can redirect to another error page
check out default handler to write your own handler.
Status and Headers
koa-onerrorwill automatic set
err.statusas response status code, and
err.headersas response headers.