koajs/ onerror

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About the developer

koajs

136 Stars

17 Forks

MIT License

63 Commits

5 Opened issues

Description

an error handler for koa, hack ctx.onerror

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koa-onerror

Name: onerror
Brand: onerror
SKU: //koajs/onerror
Rating: 2.09 (136 reviews)

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-onerror

will automatic set

err.status

as response status code, and

err.headers

as response headers.

License

MIT