I am trying to write a Cloud Function in node where I can return a token from a parameter.
The URL I use is...
https://us-central1-nmnm03.cloudfunctions.net/GetAccount?taccount=Asd
my function is this... and its wrong. I suspect I am not assigning TT properly.
var functions = require('firebase-functions');
const admin = require('firebase-admin');
admin.initializeApp(functions.config().firebase);
exports.GetAccount = functions.https.onRequest((req, res) => {
const t = admin.database().ref('/newaccout/'+req.query.account)
const tt = t.child(token)
res.send( "res is " + tt );
});
req.query.account is the Key. One of the Items in the document is token
ideally, I would like to get something like...
{"token":"23453458885"}
Could I get a node hint please... thanks
Though, I am not a firebase geek. What it seems from the documentation is that you will have two events that you can use to listen for retrieving child data. You can read further more here. The given options are used for different cases. Please follow through the mentioned link to have clear view.
Inside your cloud function you can try doing following:
const t = admin.database().ref('/newaccout/'+req.query.account)
t.on('child_added', function(data) {
res.json({
token: data.token
})
})
Or maybe like this:
const t = admin.database().ref('/newaccout/'+req.query.account)
t.once('value', function(snapshot) {
//Process it like above
//But here you will get al child elements at once
});
It looks like you are expecting to query the value found at a database reference stored at t. Unfortunately, you haven't actually performed a query yet. tt is just yet another Reference object that points to a location in the database. You should use the once() method on Reference to query a database location. Also bear in mind that you are using a variable called token, but you haven't defined yet in your code. To me, that looks like it would generate an error to me.
You might be well served by looking at a bunch of the sample code.
Related
I'm trying to insert data to my Wix collection using the API. I'm using a POST function and am posting a JSON document. It's supposed to simply add a new row to a database containing 1 value.
Here is the http-functions.js which I can trigger without issues (it's more or less a copy of the example from the documentation):
import {created, serverError} from 'wix-http-functions';
import wixData from 'wix-data';
export function post_peopleCount(request) {
let options = {
"headers": {
"Content-Type": "application/json"
}
};
// get the request body
return request.body.text()
.then( (body) => {
// insert the item in a collection
return wixData.insert("NumberOfPeopleDB", JSON.parse(body));
} )
.then( (results) => {
options.body = {
"inserted": results
};
return created(options);
} )
// something went wrong
.catch( (error) => {
options.body = {
"error": error
};
return serverError(options);
} );
}
The database looks like this:
and the JSON I am posting looks like this:
But the Error I am getting is:
But the permissions I have set for the collection is:
Do you know why I might be getting that "WD_PERMISSION_DENIED" and 500 Server Error? (The data does not get entered.)
Thanks!
My friend, its not related to creating a collection from scratch it is because of the permissions set to this collection once created. You fixed that by not noticing :).
Permission need to be given in order to perform such queries.
It turns out, if I create a new collection (= table) from scratch, it works. I also changed the field value in the collection to people, maybe value is a reserved term. Nevertheless, now it seems to work:
So if you run into the same problem: Try recreating the collections from scratch.
The critical thing for me which has not been mentioned yet is that you need to set the collection to have form-like permissions so that anyone has permission to submit data to the collection.
Hi I am new to expressjs. I have an admin route where I would like admin to update record and etc. I don't want to write code to updated record under the route rather I just to pass some functions or object that fetch records from db or updated them. I am using passportjs for authenticate. Currently my route look like this -
app.get('/admin', function(req, res){
res.render('admin', {
title: "Welcome Member_name ",
user: req.user
});
});
So I have created another js file for all admin operation. its under root/controller/admin.js and its looks like this -
var mysql = require('mysql'),
dbconfig = require('../config/database'),
connection = mysql.createConnection(dbconfig.connection);
module.exports = {
}
what I am after is to write some function that will get some data from the database and return the object so that I can pass the object to my route and from there to the view. Can anyone help me plz? thanks. Also if you know best practice for learning expressjs plz let me know. Thanks a lot in advance. Cheers.
I'll try to answer this one for you, although you question was a bit muddy to understand. If I'm right you'd like to call a method in your module from your route?
Let us say your module file was called admin.js for the following example. This is how you would create a method accessible outside of the module.
admin.js
var mysql = require('mysql'),
dbconfig = require('../config/database'),
connection = mysql.createConnection(dbconfig.connection);
module.exports = {};
module.exports.retrieveData = function() {
//Data retrieval code here.
};
Then in your routes file, let us say routes.js for the example. This is how you would call the method.
routes.js
var admin = require('./admin.js') //Remembering to require the module!
database.retrieveData();
You would then pass your query through a parameter in the retrieveData() method.
I want to write a JSON API.
My problem is, that sometimes I want to query for an ID, sometimes for a String.
One option would be to add a querystring, for example:
example.com/user/RandomName
example.com/user/1234556778898?id=true
and use it like:
api.get('user/:input', function(req, res) {
if(req.query.id) {
User.find({ '_id': req.params.input }, cb);
} else {
User.find({ 'name': req.params.input }, cb);
}
};
But this seems like bad practice to me, since it leads to a bunch of conditional expressions.
Are there more elegant ways?
I would suggest handling two endpoints. One for getting ALL the users and one for getting a SPECIFC user by ID.
example.com/users
example.com/users/:id
The second endpoint can be used to find a specific user by id.
The first endpoint can be used to find all users, but filters can be applied to this endpoint.
For example: example.com/users?name=RandomName
By doing this, you can very easily create a query in your Node service based on the parameters that are in the URL.
api.get('/users', function(req, res) {
// generate the query object based on URL parameters
var queryObject = {};
for (var key in req.query) {
queryObject[key] = req.query[key];
}
// find the users with the filter applied.
User.find(queryObject, cb);
};
By constructing your endpoints this way, you are following a RESTful API standard which will make it very easy for others to understand your code and your API. In addition, you are constructing an adaptable API as you can now filter your users by any field by adding the field as a parameter to the URL.
See this response for more information on when to use path parameters vs URL parameters.
I apologize if this is a stupid/newb question, but when a Rally query result is returned with a _ref (using the Javascript SDK 1.32), is there a way to directly get the object associated with the _ref?
I see that I can use getRefFromTypeAndObjectId to get the type and the object ID, and then query on that type and object ID to get the object, however I wondered if there was something like getObjectFromRef or some other such way to more directly get back the object associated with the reference.
Excellent question. The getRallyObject method on RallyDataSource should do what you need.
var ref = '/defect/12345.js';
rallyDataSource.getRallyObject(ref, function(result) {
//got it
var name = result.Name;
}, function(response) {
//oh noes... errors
var errors = response.Errors;
});
In SDK 2.0 you use the load method of a data model to read a specific object. Check out this example: http://developer.help.rallydev.com/apps/2.0p5/doc/#!/guide/appsdk_20_data_models
I create a JSonStore with a JSON formatted array of objects.
I have verified it is properly formatted.
I then try to use a dojo forEach loop on it but the JSonStore doesn't seem to have any data in it. I can specify the target in my web page URL and it shows the right data. But using console.log(myJsonStore) shows an object but I don't see the data in Firebug. I also don't see any GET for the service providing the data. It's like specifying the target path in a URL in the browser fires the GET but not when I try to trigger it in the postCreate where my foreach is located.
The answer from Ricardo, i believe is a little incorrect, seeing as the JsonRest.query function returns a dojo.Deferred.
You have a REST call being made asynchroniously through store read api - and once it returns values, it will promise to run whats set as the callback.
Try this for your loop iterator instead
storeObj.query( {} ).then(function ( results ) {
dojo.forEach( results, function( obj ) {
console.log( obj );
});
}
you can do this:
var storeObj = new JsonRest({
target: "/some/resource"
});
storeObj.query({}).forEach(function(obj){console.log(obj);});
that should do the trick