We Keep Coding

how do i check if hits has a value or not?

My goal is to send an alarm if the [hits] field is empty.
This is my result:
hits: {
total: { value: 10000, relation: 'gte' },
max_score: 1,
hits: [
[Object], [Object],
[Object], [Object],
[Object], [Object],
[Object], [Object],
[Object], [Object]
]
}
}
and this is my code:
const axios = require('axios');
const query = {
query: {
match: {
"kubernetes.pod.name.keyword" : "fcppaddy-596b798c77-9hwbh"
}
}
};
axios.get("https://tommaso.fachin:Indigestione!#elastic.gnet.it:9200/filebeat-7.15.2/_search?
pretty", query)
.then((res) => {
console.log(res.data);
console.log(res.status);
console.log(JSON.stringify(res.data));
});

I'm still not 100%, but from your comments it seems like you want to check if hits has anything in it, and if so do something for each one:
if(hits.length > 0) {
hits.forEach((hit) => {
triggerAlarm()
})
}
So obviously you can choose what to send as a param to triggerAlarm() but I think this is what you're asking for
Edit, based on your comment:
if(hits.hits.length > 0) {
hits.forEach((hit) => {
// for each item in hits.hits array, send mail
ModuloMail()
})
}

Knex.js return inserted record ID

I am inserting a note into the quoteNotes table. When I insert it and console log the res. it doesn't give me a record of the inserted note.
router.post('/:id/notes', (req, res) => {
const {id} = req.params;
const note = req.body;
note.quote_id = id
// if(note.note === "") return res.status(422)
// .json({message: 'Note cannot be empty'});
Quotes.addNote(note).then((quoteNote) => {
console.log(quoteNote)
res.status(200).json(quoteNote);
});
});
console.log =>
Result {
command: 'INSERT',
rowCount: 1,
oid: 0,
rows: [],
fields: [],
_parsers: undefined,
_types: TypeOverrides {
_types: {
getTypeParser: [Function: getTypeParser],
setTypeParser: [Function: setTypeParser],
arrayParser: [Object],
builtins: [Object]
},
text: {},
binary: {}
},
RowCtor: null,
rowAsArray: false
}

Figured it out.
needed to add .returning('id') to the query.
function addNote(data) {
return db('quote_notes')
.insert(data)
.returning('id');
}

In my case with mysql, the await insert({...}) returned an array with an id as a single element. And by using returning('id') I got an error saying it's not supported for mysql.

Why does returning snapshot.val() in a Promise when using Promise.all not work?

I'm writing a Firebase Cloud Function and I'm trying to figure out how Promise.all works. In my code, I pass in an array of database queries and I'm trying the read the resulting array, but I'm only getting garbage:
T {
A:
P {
k: Sb { Ka: [Function: vb], ba: [Object] },
aa: P { k: [Object], aa: null, wb: [Object], Bb: '' },
wb: Zc { ld: [Object], ac: [Object] },
Bb: null },
V:
R {
u:
Gd {
app: [Object],
L: [Object],
Ua: [Object],
Sc: null,
ca: [Object],
td: 1,
Qa: [Object],
va: [Object],
qg: [Object],
jc: [Object],
ee: [Object],
md: [Object],
ia: [Object],
Xa: [Object],
cd: 2,
fe: null,
K: [Object] },
path: J { o: [Object], Y: 0 },
m:
Df {
xa: false,
ka: false,
Ib: false,
na: false,
Pb: false,
oa: 0,
kb: '',
bc: null,
xb: '',
Zb: null,
vb: '',
g: Tc {} },
Kc: false,
then: undefined,
catch: undefined },
g: Tc {} }
I'm expecting a simple json:
{
"name": "Foo",
"number": 2521
// And a few other fields
}
BTW, I watched Jen's video so I know what I'm doing is wrong anyway; I just want to know why my existing code doesn't work. (I haven't tested it, but I believe the solution is to return the raw snapshots in my db query and then do the .val() call.)
Relevant code if the links disappear:
function mergeTeams(duplicates) {
return Promise.all([
admin.database().ref(someRef).once('value', (snap) => {
return snap.val();
}),
admin.database().ref(someRef2).once('value', (snap) => {
return snap.val();
})
]).then(values => {
console.log(values);
const team1 = values[0];
const team2 = values[1];
console.log(team1);
console.log(team2);
}

So, here's the code that works (and the explanation below):
return Promise.all([
admin.database().ref(teamRef + duplicates.teamKey1).once('value'),
admin.database().ref(teamRef + duplicates.teamKey2).once('value')
]).then(values => {
const team1 = values[0].val();
const team2 = values[1].val();
console.log(team1);
console.log(team2);
});
The reason it works is because I've always getting the promises in the values array even though I didn't know it. Here's what Promise.all returns: an array with the raw result of the promises passed in. When I was returning stuff inside the success callback, that didn't actually do anything because it wasn't part of the promise; I was just returning random stuff to an empty void. And when I was printing the teams, I was actually logging the Firebase Snapshot object instead of the .val().

Body response to client(Angular2) from Node API via Express formatted wrong

When my Angular2 component makes a request to get my fake model data object it gets returned like so:
_body: "[↵ {↵ "id": 0,↵ "title": "2017 Oscars",↵ "graphic": "https://wikitags.com/images/OscarsBanner.png",↵
What I am expecting is an Array like so:
[
{ id: 0,
title: '2017 Oscars',
graphic: '/images/OscarsBanner.png',
categorycards: [ [Object], [Object], [Object], [Object] ] },
{ id: 1,
title: '2017 Super Bowl',
graphic: '/images/SuperBowlBanner.png',
categorycards: [ [Object], [Object], [Object], [Object] ] },
{ id: 2,
title: 'What people are talking about',
graphic: null,
categorycards: [ [Object], [Object], [Object], [Object] ] }
]
The Model
What my backend/models/home.ts looks like
export function homeData() {
return [
{
id: 0,
title: '2017 Oscars',
graphic: '/images/OscarsBanner.png',
categorycards: [
{
type: 'image',
graphic: 'https://upload.wikimedia.org/wikipedia/commons/thumb/f/fc/Ryan_Gosling_2_Cannes_2011_%28cropped%29.jpg/1024px-Ryan_Gosling_2_Cannes_2011_%28cropped%29.jpg?width=440',
title: '2017 Oscar Nominee for Best Actor',
listings: ['Rayn Gosling', 'Denzel Washington', 'Andrew Garfield', 'Casey Affleck', 'Viggo Mortensen']
}
//...
]
}
//...
];
}
The client API
api.service.ts
#Injectable()
export class ApiService {
private getFeaturedUrl: string = '/wiki/api';
constructor(public http: Http) {}
/**
* Get featured categories data for homepage
*/
getFeatured(): Observable<{}> {
return this.http.get(`${this.getFeaturedUrl}/home`)
.do(res => console.log('getFeatured res', res))
.map(res => res.json().data)
.catch(this.handleError);
}
The console.log here:
The homepage component
universalInit() {
console.log('universalInit...')
this.api.getFeatured()
.subscribe(categories => {
console.log('categories', categories);
// this.testFeaturedCategories = categories
});
The Node/Express API endpoint
// API CRUD ////////////////////////////////////////////////////////////////////
app.get('/wiki/api/home', (req, res) => {
console.log('homeData()', homeData());
if (!homeData()) returnError(res, 'No home data found');
res.json(homeData());
});
In the terminal, I see my home.ts model Array:
Any ideas why my res.body is looking jacked up?

It looks like it may be trying to convert the json object twice. Not completely sure though
instead of res.json(homeData())
Try:
res.send(homedata())
If that doesn't work, then my guess would be to go on the angular side and change
.map(JSON.parse(res.json().data))

Node.js - Counting the number of objects in MongoDB collection

I am new to Node.js and MongoDB and I am really struggling to wrap my head around callbacks. I have read a few articles but it is still quite confusing to me. In the code below, I am trying to return the count of orders that have some properties which I have expressed in the query in orderModel.count(query, next):
controllers/order.js:
var mongoose = require ('../config/db');
var orderModel = require('../models/order').model;
var User = require('./user');
var Error = require('../config/error');
createOrder: function (user, order, next) {
if (newOrder.totalPrice > user.credit && orderModel.
count({$and: [{user: order.user}, {active: true}, {$or: [{status: 0}, {status: 1}]}]},
function(err, count){
if(err)
console.log(err);
else
count; }) > 0)
return next({error: Error.InsufficientCredits});
}
I don't think I am correctly obtaining the variable count because when I tried printing out the result of the second condition in the if statement, I got this data printed out:
Query {
_mongooseOptions: {},
mongooseCollection:
NativeCollection {
collection: Collection { s: [Object] },
opts: { bufferCommands: true, capped: false },
name: 'orders',
collectionName: 'orders',
conn:
NativeConnection {
base: [Object],
collections: [Object],
models: [Object],
config: [Object],
replica: false,
hosts: null,
host: 'dsXXXXXX.mlab.com',
port: XXXXXX,
user: 'XXXX',
pass: 'XXXX',
name: 'X',
options: [Object],
otherDbs: [],
_readyState: 1,
_closeCalled: false,
_hasOpened: true,
_listening: false,
db: [Object],
_events: {},
_eventsCount: 0 },
queue: [],
buffer: false,
emitter:
EventEmitter {
domain: null,
_events: {},
_eventsCount: 0,
_maxListeners: undefined } },
....

You need to put your logic inside the Model.count() method callback function as:
var mongoose = require ('../config/db'),
orderModel = require('../models/order').model,
User = require('./user'),
Error = require('../config/error');
var createOrder = function (user, order, next) {
orderModel.count({
"user": order.user,
"active": true,
"status": { "$in": [0, 1] }
}, function(err, count) { //<-- put logic in this callback
if (err) {
console.log(err);
throw err;
} else if (newOrder.totalPrice > user.credit && count > 0) {
// logic for creating order here
} else {
return next({ "error": Error.InsufficientCredits });
}
})
}