I'm getting data from my back-end the goal is when I want to click on the button of a specific id I want to get list of data with same id , because I need it to affect the data in charts NB : I couldn't change the form of data it should return like that cuz I'm using mongo db functions such as $group and $count
Resolver [
{ _id: { _id: '123456789', totaloutcome: 'DONE' }, count: 4 },
{
_id: { _id: '05000002', totaloutcome: 'OUTCOME_APPROVED_ONLINE' },
count: 27
},
{
_id: { _id: '05000002', totaloutcome: 'OUTCOME_CANCELLED' },
count: 1
},
{
_id: { _id: '05000002', totaloutcome: 'OUTCOME_UNKNOWN' },
count: 1
},
{
_id: { _id: '05000002', totaloutcome: 'OUTCOME_DECLINED' },
count: 15
}
]
for who want to see my back-end code I'm using NestJs
async getOutcomeCount() {
return await this.tpeModel.aggregate([
{
$lookup: {
from: 'logs',
localField: 'terminalId',
foreignField: 'terminalId',
as: 'resultData',
},
},
{ $unwind: '$resultData' },
{
$group: {
_id: {
_id: '$resultData.terminalId',
totaloutcome: '$resultData.outcome',
},
count: { $sum: 1 },
},
},
]);
}
As I said I want to get list of data with _id:05000002 for e.g
I'd recommend two things: first, a function that describes the value being looked for...
const innerId = obj => obj._id._id;
Then, a filter -- not a find -- to get elements of the array with that value...
const allWithId = id => resolverArray.filter(el => innerId(el) === id);
Demo...
let resolverArray = [
{ _id: { _id: '123456789', totaloutcome: 'DONE' }, count: 4 },
{
_id: { _id: '05000002', totaloutcome: 'OUTCOME_APPROVED_ONLINE' },
count: 27
},
{
_id: { _id: '05000002', totaloutcome: 'OUTCOME_CANCELLED' },
count: 1
},
{
_id: { _id: '05000002', totaloutcome: 'OUTCOME_UNKNOWN' },
count: 1
},
{
_id: { _id: '05000002', totaloutcome: 'OUTCOME_DECLINED' },
count: 15
}
]
const innerId = obj => obj._id._id;
const allWithId = id => resolverArray.filter(el => innerId(el) === id);
console.log(allWithId('05000002'))The JavaScript function Array.find returns only the first match if any.
You should use Array.filter instead when there is more then one match, as per docs:
method creates a new array filled with elements that pass a test provided by a function
const matchingItems = yourArray.filter(item => item.id === 123)