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GeezerVison is showing github.com — JavaScript/Asynchronous-JavaScript/byeTryCatchErrorHandling.js at master · lgope/JavaScript

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// catchAwait.js
const catchAwait = promise =>
promise
.then(data => ({ data, error: null }))
.catch(error => ({ error, data: null }));
module.exports = catchAwait;
// working file
const { getItems } = require('./api/items');
const catchAwait = require('./utils/catchAwait');
const allItems = async () => {
const { error, data } = await catchAwait(getItems());
if (!error) {
// code
}
console.error(error);
};
allItems();
/**
* Another way
*/
// catchAsync.js
module.exports = fn => {
return (req, res, next) => {
fn(req, res, next).catch(next);
};
};
// createOne.js
exports.createOne = Model =>
catchAsync(async (req, res, next) => {
const doc = await Model.create(req.body);
res.status(201).json({
status: 'success',
data: {
data: doc,
},
});
});
// another
const awaitHandlerFactory = (middleware) => {
return async (req, res, next) => {
try {
await middleware(req, res, next);
} catch (err) {
next(err);
}
};
};
// and use it this way:
app.get(
"/",
awaitHandlerFactory(async (request, response) => {
const result = await getContent();
response.send(result);
})
);
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