43 lines
897 B
JavaScript
43 lines
897 B
JavaScript
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var http = require('http');
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var koa = require('..');
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var app = koa();
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// look ma, error propagation!
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app.use(function(next){
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return function *(){
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try {
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yield next;
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} catch (err) {
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// some errors will have .status
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// however this is not a guarantee
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this.status = err.status || 500;
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this.type = 'html';
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this.body = '<p>Something <em>exploded</em>, please contact Maru.</p>';
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// since we handled this manually we'll
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// want to delegate to the regular app
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// level error handling as well so that
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// centralized still functions correctly.
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this.app.emit('error', err, this);
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}
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}
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});
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// response
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app.use(function(next){
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return function *(){
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throw new Error('boom boom');
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}
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});
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// error handler
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app.on('error', function(err){
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console.log('sent error %s to the cloud', err.message);
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});
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app.listen(3000);
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