Hey.
Need some advice on an api application built using:
- express
- knexjs
- postgres
My question is if im handling database operations correctly or if im doing
it completely wrong.. See example
var knex = require('knex');
app.get('/example/:param',
loadWithParam(),
updateWithParam(),
render.staticOK()
function loadWithParam() {
return function(req, res, next) {
var db = knex({conConfig});
db(tableName).where(field, req.params.param).select().then(function(rows) {
db.destroy(function() {
res.locals[tableName] = rows;
next();
});
}).catch(function(err) {
...
});
};
}
function updateWithParam() {
return function(req, res, next) {
if(res.locals[tableName].length === 0) {
return next();
}
var db = knex({conConfig});
db(tableName).where(field, req.params.param).update({field: value}).then(
function() {
db.destroy(function() {
next();
});
}).catch(function(err) {
...
});
};
}
In short my question is if its good or bad practise opening up and closing
database connections per operation required to run? Ive been told setting
up a database connection on res.locals upon receiving a request is better,
but i disagree..
Thanks
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