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async await

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Yedidya
2021-02-05 00:04:16 +02:00
parent 78bd3104d1
commit ec6d4854eb
1 changed files with 13 additions and 18 deletions
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15
sections/production/assigntransactionid.md
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@ -18,16 +18,16 @@ const app = express();
app.use(rTracer.expressMiddleware()); app.use(rTracer.expressMiddleware());
app.get('/getUserData/{id}', (req, res, next) => { app.get('/getUserData/{id}', async (req, res, next) => {
usersRepo.find(req.params.id) try {
.then((user) => { const user = async usersRepo.find(req.params.id);
// At any point in the app after cls-rtracer middleware was initialized, even when 'req' object doesn't exist, the TransactionId is reachable // At any point in the app after cls-rtracer middleware was initialized, even when 'req' object doesn't exist, the TransactionId is reachable
const transactionId = rTracer.id(); const transactionId = rTracer.id();
logger.info(`user ${user.id} data was fetched successfully`, { transactionId }); logger.info(`user ${user.id} data was fetched successfully`, { transactionId });
res.json(user); res.json(user);
}) } catch (err) {
.catch(err) {
// As next step I'd recommand using rTracer.id() from inside the logger component, to prevent from using it all over the code // As next step I'd recommand using rTracer.id() from inside the logger component, to prevent from using it all over the code
logger.error(`error while fetching user id ${req.params.id} data`, { transactionId: rTracer.id(), error: err }); logger.error(`error while fetching user id ${req.params.id} data`, { transactionId: rTracer.id(), error: err });
next(err); next(err);
@ -48,11 +48,6 @@ app.use(rTracer.expressMiddleware({
headerName: 'x-transaction-id' headerName: 'x-transaction-id'
})); }));
// The supplied TransactionId will be now the one that was passed from the previous request; if this is the first request in the chain, it will be just generated
const transactionId = rTracer.id();
``` ```