Sqlite3 returning empty array with GET request in Express - express

Question

I am trying to make a get request to an sqlite3 table, using Express, based on input from a form. The fetch request works and so does the db.all, but I receive a response as an empty array from rows. I tried req.query and req.params already. Not sure where the error is.
//server.js
app.get('/names/state', (req, res, next) => {
const stateValue = req.query.state;
db.all(`SELECT name FROM states WHERE name=$stateVal`,
{
$stateVal: stateValue
},
(err, rows) => {
res.send({rows:rows});
})
});
//script.js
const fetchOneBtn = (e) => {
e.preventDefault();
const stateVal = stateInputValue.value;
fetch(`/names/state?state=${stateVal}`)
.then(response =>{
if(response.ok){
return response.json();
}
}).then(names => {
console.log(names);
})
};

Answer 1

You can change your code in your backend with this code below:
app.get('/names/state', (req, res, next) => {
const stateValue = req.query.state;
var query = "SELECT name FROM states WHERE name = " + stateValue;
db.all(query, (err, rows) => {
if(err) {
console.log(err);
res.status(500).send(err);
}else {
res.send({rows});
}
})
});
Now, for your frontend, you can change with the code below:
const fetchOneBtn = async (e) => {
e.preventDefault();
const stateVal = stateInputValue.value;
try {
const response = await fetch(`/names/state?state=${stateVal}`, {
method: 'GET',
headers: {
'Content-Type': 'application/json'
},
});
console.log(await response.json());
return await response.json();
} catch(ex) {
console.log(ex);
}
};
I hope it can help you.