I am trying to consume an application/x-www-form-urlencoded
encoded POST body in my node.js route.
Request using curl on the command line:
curl -X POST -H "Content-Type: application/x-www-form-urlencoded" -d 'trx[0][trx_amt]=4166481.208338&trx[0][trx_crdr]=CR&trx[0][trx_tran_type]=TR&trx[0][trx_ref1]=5979NY270557&trx[1][trx_amt]=-5735967.281740&trx[1][trx_crdr]=DR&trx[1][trx_tran_type]=II&trx[1][trx_ref1]=7305XN175748' localhost:8080/api/test
I now want to parse those values and put them into an array of arrays (no key/value pairs). Parsing the values from the request body works fine, putting them into an array as well (current_trx
), but pushing that array as an element into another array (trx_data
) leaves the array blank. Please help me understand what the problem is.
app.post("/api/test", (req, res) => {
console.log(JSON.stringify(req.headers));
console.log(req.body);
var trx_data = [];
var current_trx = [];
for (let i = 0; i < req.body.trx.length; i ) {
current_trx.push(parseFloat(req.body.trx[i].trx_amt));
current_trx.push(req.body.trx[i].trx_crdr);
current_trx.push(req.body.trx[i].trx_tran_type);
current_trx.push(req.body.trx[i].trx_ref1);
trx_data.push(current_trx); // this seems not to have any effect, trx_data remains empty
console.log("CURRENT_TRX:");
console.log(current_trx); // this works fine, output as expected
// emptying current_trx for the next loop
while (current_trx.length > 0) {
current_trx.pop();
}
}
console.log("TRX_DATA ARRAY"); // empty..
console.log(trx_data);
res.sendStatus(200);
});
CodePudding user response:
You can use Array.map to solve this,
You are adding values to trx_data and emptying the same. you can move var current_trx = [];
inside loop, which will also solve the issue is removed clearing logic.
app.post("/api/test", (req, res) => {
const trx = req.body.trx;
const trx_data = trx.map((item) => {
const current_trx = [];
current_trx.push(parseFloat(item.trx_amt));
current_trx.push(item.trx_crdr);
current_trx.push(item.trx_tran_type);
current_trx.push(item.trx_ref1);
return current_trx;
});
console.log(trx_data);
res.sendStatus(200);
});