I want to build a script which get s a JSON and manipulates it.
I have one problem, i don't know how to check if a certain value exists, for example:
i get this JSON when doing action 1:
{
"url": "http://zuberi.me",
"top": "true"
}
and when i do action 2:
{
"url": "http://zuberi.me",
"top": "true",
"copy": "false"
}
so i want to check if "copy" is exists in the JSON response i get...
thanks in advance :)
A javascript implementation:
var json1 = { "url": "http://zuberi.me",
"top": "true",
"copy": "false" },
json2 = { "url": "http://zuberi.me",
"top": "true" };
json1.hasOwnProperty('copy'); // true
json2.hasOwnProperty('copy'); // false
Assuming that your JSON string is already converted to a JavaScript object:
if ("copy" in json) {
// ...
}
if (typeof(json.copy) === 'boolean') {
Related
I'm trying to validate json files which have an element that has a property which contains a value that should exist in another part of the json. I'm using jsonschema Draft 07.
This is a simple little example that shows the scenario I'm trying to validate in my data.
{
"objects": {
"object1": {
"colorKey": "orange"
}
},
"colors": {
"orange": {
"red": "FF",
"green": "AF",
"blue": "00"
}
}
}
How can I validate that the 'value' of colorKey (in this case 'orange') actually exists as a property of the 'colors' object? The data isn't stored in arrays, just defined properties.
For official JSON Schema...
You cannot check that a key in the data is the same as a value of the data.
You cannot extract the value of data from your JSON instance to use in your JSON Schema.
That being said, ajv, the most popular validator, implements some unofficial extensions. One of which is $data.
Example taken from: https://github.com/epoberezkin/ajv#data-reference
var ajv = new Ajv({$data: true});
var schema = {
"properties": {
"smaller": {
"type": "number",
"maximum": { "$data": "1/larger" }
},
"larger": { "type": "number" }
}
};
var validData = {
smaller: 5,
larger: 7
};
ajv.validate(schema, validData); // true
This would not work for anyone else using your schemas.
Below is my JSON
[
{
"Key": "doc/1996-78/ERROR-doc-20200103.xlsx"
}
},
{
"Key": "doc/1996-78/SUCCESS-doc-20200103.xlsx"
},
{
"Key": "doc/1996-78/PENDING-doc-20200103.xlsx"
}
]
First i want to split key value by backslash and after that will split the [2] json value by hyphen and then will check in string that if there is SUCCESS/PENDING/ERROR word found in the newly spitted JSON. If any word is present would like to add new status field and add Done/Processing/Failure respective values in newly created JSON. this is a dynamic json so without manipulating it i can't get status value
This is what i would like to achive in my new JSON
[
{
"Key": "doc/1996-78/ERROR-doc-20200103.xlsx",
"status":"Failure"
}
},
{
"Key": "doc/1996-78/SUCCESS-doc-20200103.xlsx",
"Status":"Done"
},
{
"Key": "doc/1996-78/PENDING-doc-20200103.xlsx",
"Status":"Processing"
}
]
As i'm new to this kindly let me know how to achieve this
You can use includes function and if true then add string.
Try my code:
let myJson = [
{
"Key": "doc/1996-78/ERROR-doc-20200103.xlsx"
},
{
"Key": "doc/1996-78/SUCCESS-doc-20200103.xlsx"
},
{
"Key": "doc/1996-78/PENDING-doc-20200103.xlsx"
},
{
"Key": "doc/1996-78/WRONG-doc-20200103.xlsx"
}
];
myJson = myJson.map(obj => ({
...obj,
"Status": obj.Key.includes("ERROR") ? 'Failure' : obj.Key.includes('SUCCESS') ? 'Done' : obj.Key.includes('PENDING') ? 'Processing' : false
}))
console.log(myJson)
for(let object of objectArra) {
if(object.key === 'doc....')
object['status']="Failure";
else if (object.key === 'doc..')
object['status'] = "Done";
else if....
}
Iterate on object array if the key is equal to that you want status is "failure", you insert a status property in the object with "Failure" as value ...
This can be achieved in the following way
yourArrayName.forEach((val)=>{
if(val.Key.includes('ERROR')){
val['Status']="Failure"
}
else if(val.Key.includes('SUCCESS')){
val['Status']="Done"
}
else if(val.Key.includes('PENDING')){
val['Status']="Processing"
}
})
Hope it helps!
How to do it in ES 6
The key advantage is the use of Regex which makes it more flexible to other requirements than includes.
const data = [
{
"Key": "doc/1996-78/ERROR-doc-20200103.xlsx"
},
{
"Key": "doc/1996-78/SUCCESS-doc-20200103.xlsx"
},
{
"Key": "doc/1996-78/PENDING-doc-20200103.xlsx"
}
];
data.map((entry) => {
let status;
if (/^.*ERROR.*$/.test(entry.Key)) {
status = 'Failure';
} else if (/^.*SUCCESS.*$/.test(entry.Key)) {
status = 'Done'
} else if (/^.*PENDING.*$/.test(entry.Key)) {
status = 'Processing'
}
return {...entry, status};
});
My JSON response body looks like :
[
{
"_time": "1499996827804",
"properties": {
"length": "80",
"width": "4500"
}
}
]
I am using Postman to write tests to assert on value of length and width and _time.
I wrote :
var data = JSON.parse(responseBody);
tests["Check length value"] = data.length === "80";
But it's failing. Can anyone help ?
If your JSON looks like this:
[ { "_time": "1499996827804", "properties": { "length": "80", "width": "4500" } } ]
Then you need to fix the data.length === "80" part of your test.
Firstly, your JSON is an array, so you need to be selecting data[0] to get the first item in the response (which is { "_time": "1499996827804", "properties": { "length": "80", "width": "4500" } }). Then, it looks like you're trying to check the length part of the response, which is under the properties object. So your selector should now look like this: data[0].properties.
And finally, to access the length part, add .length to the end of your selector: data[0].properties.length.
Put it all together, and you should have:
tests["Check length value"] = data[0].properties.length === "80";
Hope it helps!
Your data is coming back in an array so you need to get the first item of the array. Also length is a sub property of the "properties" object. Try this:
tests["Check length value"] = data[0].properties.length === "80";
I am writing my first api (express/node) and one of the endpoints receives json data in the body like:
{
"text": "some comment here...",
"tags": [
{"id": 0, "tag": "some tag 1"},
{"id": 123, "tag": "some tag 2"}
],
"date": "1452305028289",
}
Is there some way you can check that all the properties exist on the object and that they have values? Or do you have to write a custom function checking for each required property and values?
You can use one of these packages for validating data with NodeJS:
https://github.com/hapijs/joi
https://github.com/mafintosh/is-my-json-valid
https://github.com/ctavan/express-validator
A simple solution would be this function that takes an object and a list of strings as the properties of that object:
var checkProperties = function (obj, props) {
return props
.map(function(prop) { return obj.hasOwnProperty(prop); })
.reduce(function (p, q) { return p && q; });
}
use like this
checkProperties({ prop1: someValue, prop2: someOtherValue }, ["prop1", "prop2"]); // true
I am using mongoose as JSON Schema and node.js with it. Need not say, I am new to both. I have been struggling through the day to get this thing work for me but couldn't. Finally, the only solution was to get help from some real nice people out here.
Here is my schema definition -
UserName = {
"properties": {
userURL: {
"description": "URL of this resource",
"type": "string"
},
userName : {
"description": "UserName",
"type": "string",
"required": true
},
}
}
When I make a get call to it, it returns the response in following format -
[
{
"_id": "54c5ede55c82c4bd6abee50a",
"__v": 0,
"properties": {
"userURL": "http://localhost:3000/54c1d6ae441ae900151a6520",
"userName ": "testUser"
}
}
]
Now my requirement is to return the response in following format -
[
{
"_id": "54c5ede55c82c4bd6abee50a",
"userURL": "http://localhost:3000/54c1d6ae441ae900151a6520",
"userName ": "testUser"
}
]
i.e without version and properties tags. I am able to get away with version using following code but properties seems to be tricky thing -
.get(function(request, response) {
UserSchemaModel.find().select('properties.userURL properties.userName').exec (function (err, resObj) {
if (err)
response.send(err);
else{
response.json(resObj);
}
});
});
But it still has properties field :( -
[
{
"_id": "54c5ede55c82c4bd6abee50a",
"properties": {
"userURL": "http://localhost:3000/54c1d6ae441ae900151a6520",
"userName ": "testUser"
}
}
]
I did some google around select as, alias name in select,population in mongoose but no luck.
Kindly suggest. With best Regards.
Just make a new object
response.json(
{
"_id": resObj["_id"],
"userURL": resObj["properties"]["userUrl"],
"userName": resObj["properties"]["userName"]
}
);
Update: Since resObj is an array (as per your comment), you can use Array.prototype.map() to transform them into the right format like so:
response.json( resObj.map(function(o){
return {
"_id": o["_id"],
"userURL": o["properties"]["userUrl"],
"userName": o["properties"]["userName"]
};
})
);
This will return a list of transformed objects that then get passed into the response.json() method.