I have a query that extracts a document with a username and password as a filter. My return value is an array (It will return the elements in phoneBook). How do I turn this into a JSON object? Just returning a JSON from a query would be ideal.
db.users.find({userName:"mark", passWord:"test1234"}, {phoneBook:1,_id:0})
{ "phoneBook" : [ { "firstName" : "Rupert", "lastName" : "Styx", "phoneNumber" : "9147388152", "email" : "ruperstyx#gmail.com" } ] }
I'm still playing around with this string. I can't extract the attributes inside of phoneBook and turn it into a JSON
If you use php then you can use jsonencode($your_array) function for converting an array into json object and if you working on other language then just search function for converting an array into json.
This is snipt from my code (my app in Node.js)
collection.find({
"word": req.query.word
}).toArray(function(err, results) {
var res = JSON.stringify(results);
});
Simply use JSON.stringify(results)
I hope it works for you
By using Robomongo tool you will be able to see query results in list, table and json view!
Using robomongo:
db.getCollection('ModelName')
.find({})
.limit(20)
.map(function(model){
return model.toSource()
})
Related
This is my sample JSON
{
"id":"743",
"groupName":"group1",
"transation":{
"101":"success",
"102":"rejected",
"301":"processing"
}
}
Expected Result:
"101"
"102"
"301"
Can anyone please help me to print the above result using XQuery?
I can achieve this through JavaScript, but I need to write in XQuery.
Not knowing how you are reading the JSON document, whether as a doc in the database or parsing a JSON string, below uses xdmp:unquote() to parse a string, but you could instead just read the document from the database with fn:doc() or through cts:search().
Then, you could just XPath to the transation fields and return those node names with the name() function:
let $jsonData := xdmp:unquote('
{
"id":"743",
"groupName":"group1",
"transation":{
"101":"success",
"102":"rejected",
"301":"processing"
}
}')
return
$jsonData/transation/*/name()
I come from a Python Background and recently started programming using TypeScript and Angular2. I want to know how to obtain keys from a JSON object using TypeScript.
I have a response like so:
response.text()
I pass this object to a function
removeMetaData (my_data: string){
//(Various manipulation)...etc
}
i have read that I can call a json() method instead of text(). If I do that, what is the type I should use for my_data?
Then,
If my JSON looks like this:
{
"count": 100,
"next_page": "http://www.test.com/users/?page=2",
"prev_page": "http://www.test.com/users/?page=3",
"results":[
{
"username": "johnny"
},
Etc....
]
How do I parse that?
I've read I might have to use an interface but I don't understand how.
In python it's just response["next_page"] to get the key of a dictionary, then I can assign that value to a variable within the class. That is exactly what I'm trying to achieve within a component.
Thank you.
ADDITION
list() {
this.requestService.get(this.api_path)
.subscribe(
response => this.populate(response.json()),
error => this.response = error.text()
)
}
populate(payload: object) {
this.count = payload.count;
this.next = payload.next;
this.previous = payload.previous;
*payload.results => this.users = payload.results;******
}
Declare an interface which will be used as value object.
export interface IPage
{
count:number;
next_page:string;
prev_page:string;
results:Array<any>;
...
...
}
var my_data:IPage;
Now assign parsed json value to my_data and access all the properties with '.' operator i.e. my_data.count, my_data.results.
Feel free to throw any question.
If I do that, what is the type I should use for my_data?
Its just a javascript object.
As an example if you json looks like:
{
"foo": {
"bar": "bas"
}
}
Then in the parsed json (in variable someObj) the value someObj.foo.bar would be bas 🌹
I gets following data in to a variable fields
{ data: [ '{"myObj":"asdfg"}' ] }
How to get the value of myObj to another variable? I tried fields.myObj.
I am trying to upload file to server using MEANjs and node multiparty
Look at your data.
fields only has one property: data. So fields.myObj isn't going to work.
So, let's start with fields.data.
The value of that is an array. You can see the []. It has only one member, so:
fields.data[0]
This is a string. You seem to want to treat it as an object. It happens to conform to the JSON syntax, so you can parse it:
JSON.parse(fields.data[0])
This parses into an object, so now you can access the myObj property.
JSON.parse(fields.data[0]).myObj
var fields = { data: [ '{"myObj":"asdfg"}' ] };
alert(JSON.parse(fields.data[0]).myObj);
I have JSON string like below :
{
"ConfigurationJsonResult":
[
2246,
2247,
2248,
2249,
2250,
2251,
2252,
2253,
2254,
2255
]
}
My problem is i want to get 1st value i.e 2246 using xPath.
I have tried using /ConfigurationJsonResult[1] but it gives me [2246,2247.....2255], i just want 2246. How to achieve it.
You can write a mapping function to convert xpath to jsonpath and use converted string to access the data.
function xpathToJsonPath(xpath) {
var jsonPath = xpath.replace("//","..");
//Simillarly other mappings
return jsonPath;
}
var data = jsonPath(object, xpathToJsonPath("$..author"));
Mappings are given the link you have shared - http://goessner.net/articles/JsonPath/
You can do plenty of improvements on this like extending this as a function to prototype etc.
I have this JSON format:
string jsonFormat = #"{
""Applications"": {
""data"": {
""Application named one"": [
{
""index"" : ""1"",
""name"" : ""One"",
""active"" : ""1"",
""excluded"" : ""false""
}
],
""Application named two"": [
{
""index"" : ""2"",
""forum"" : ""yes"",
}
]
}
}
}";
How exactly I can acces data childrens ? I need to retreive Application named one and Application named two - for each also the attributes with their values - the attributes are different from Application to Application.
Untill now I have:
JObject resultt= JObject.Parse(jsonFormat);
// get JSON result objects into a list
IList<JToken> results = resultt["Applications"]["data"].Children().ToList();
I looked over JSON.net documentation and could not find a solution for this...
Any help will be very usefull. Thank you.
I think you are looking for something like this:
JObject jObject = JObject.Parse(jsonFormat);
int index = jObject
.Value<JObject>("Applications")
.Value<JObject>("data")
.Value<JArray>("Application named one")
.First
.Value<int>("index");
Basically the idea is to use the Value method with the type you are expecting to retrieve a specific json element (JObject, JArray, ...) or parse a .NET value (int, string, bool, ...).