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JSON Schema required properties in array are not validate [duplicate]

I want to make a schema of json file.It's for an array of products.
The json schema is similar as below:
{
"$schema": "http://json-schema.org/draft-04/schema#",
"title": "Product set",
"type": "array",
"items": {
"title": "Product",
"type": "object",
"properties": {
"id": {
"description": "The unique identifier for a product",
"type": "number"
},
"name": {
"type": "string"
},
"price": {
"type": "number",
"minimum": 0,
"exclusiveMinimum": true
},
"tags": {
"type": "array",
"items": {
"type": "string"
},
"minItems": 1,
"uniqueItems": true
},
"dimensions": {
"type": "object",
"properties": {
"length": {"type": "number"},
"width": {"type": "number"},
"height": {"type": "number"}
},
"required": ["length", "width", "height"]
},
"warehouseLocation": {
"description": "Coordinates of the warehouse with the product",
"$ref": "http://json-schema.org/geo"
}
},
"required": ["id", "name", "price"]
}
}
The array should at least one item in it. How can I define the minimum of the array?
Do I need to add the minimun defination?

To set the minimum # of item in an array, use the "minItems".
See:
https://datatracker.ietf.org/doc/html/draft-fge-json-schema-validation-00#section-5.3.3
and
http://jsonary.com/documentation/json-schema/?section=keywords/Array%20validation
{
"$schema": "http://json-schema.org/draft-04/schema#",
"title": "Product",
"description": "A product from Acme's catalog",
"type": "object",
"properties": {
...
"tags": {
"type": "array",
"items": {
"type": "string"
},
"minItems": 1,
"maxItems": 4,
"uniqueItems": true
}
},
"required": ["id", "name", "price"]
}

It looks like draft v4 permits what you are looking for. From http://json-schema.org/example1.html:
{
"$schema": "http://json-schema.org/draft-04/schema#",
"title": "Product",
"description": "A product from Acme's catalog",
"type": "object",
"properties": {
...
"tags": {
"type": "array",
"items": {
"type": "string"
},
"minItems": 1,
"uniqueItems": true
}
},
"required": ["id", "name", "price"]
}
Notice that the "tags" property is defined as an array, with a minimum number of items (1).

I suppose no, at least looking to working draft the minimum is applied only for numeric values, not arrays.
5.1. Validation keywords for numeric instances (number and integer)
...
5.1.3. minimum and exclusiveMinimum
So you should be good with min/maxItems for arrays.

Is it possible to obtain a parameter's value from JSON response

This is my first post.
I am trying to integrate Shippo to our application and wish to obtain a specific value out of a Json response.
I am getting the following Json response:
{
"count": 3,
"next": null,
"previous": null,
"results": [
{
"object_created": "2019-08-28T12:58:57.064Z",
"object_id": "16b602e0ajdsk87c4313920bc5e3174XYZ",
"object_owner": "some#email.com",
"shipment": "bd62234e151244dab2b2152fdcd15e76",
"attributes": [
"FASTEST"
],
"amount": "31.30",
"currency": "USD",
"amount_local": "31.30",
"currency_local": "USD",
"provider": "USPS",
"provider_image_75": "https://shippo-static.s3.amazonaws.com/providers/75/USPS.png",
"provider_image_200": "https://shippo-static.s3.amazonaws.com/providers/200/USPS.png",
"servicelevel": {
"name": "Priority Mail Express",
"token": "usps_priority_express",
"terms": ""
},
"estimated_days": 1,
"arrives_by": null,
"duration_terms": "Overnight delivery to most U.S. locations.",
"messages": [],
"carrier_account": "4e1506b8b7f7449e90620967e45aa1e9",
"test": false,
"zone": "4"
},
{
"object_created": "2019-08-28T12:58:57.063Z",
"object_id": "ebdee42047aa49a3b7e08b1903ea02ea",
"object_owner": "some#email.com",
"shipment": "bd62234e151244dab2b2152fdcd15e76",
"attributes": [
"BESTVALUE",
"CHEAPEST"
],
"amount": "7.49",
"currency": "USD",
"amount_local": "7.49",
"currency_local": "USD",
"provider": "USPS",
"provider_image_75": "https://shippo-static.s3.amazonaws.com/providers/75/USPS.png",
"provider_image_200": "https://shippo-static.s3.amazonaws.com/providers/200/USPS.png",
"servicelevel": {
"name": "Priority Mail",
"token": "usps_priority",
"terms": ""
},
"estimated_days": 2,
"arrives_by": null,
"duration_terms": "Delivery within 1, 2, or 3 days based on where your package started and where it’s being sent.",
"messages": [],
"carrier_account": "4e1506b8b7f7449e90620967e45aa1e9",
"test": false,
"zone": "4"
},
{
"object_created": "2019-08-28T12:58:57.062Z",
"object_id": "ad410a41c84940ee80eb30c41c507613",
"object_owner": "some#email.com",
"shipment": "bd62234e151244dab2b2152fdcd15e76",
"attributes": [],
"amount": "7.78",
"currency": "USD",
"amount_local": "7.78",
"currency_local": "USD",
"provider": "USPS",
"provider_image_75": "https://shippo-static.s3.amazonaws.com/providers/75/USPS.png",
"provider_image_200": "https://shippo-static.s3.amazonaws.com/providers/200/USPS.png",
"servicelevel": {
"name": "Parcel Select",
"token": "usps_parcel_select",
"terms": ""
},
"estimated_days": 7,
"arrives_by": null,
"duration_terms": "Delivery in 2 to 8 days.",
"messages": [],
"carrier_account": "4e1506b8b7f7449e90620967e45aa1e9",
"test": false,
"zone": "4"
}
]
}
I am using this call:
WebClient webClient = new WebClient();
webClient.Headers.Add("Authorization: ShippoToken " + authToken);
var result = JsonValue.Parse(webClient.DownloadString("https://api.goshippo.com/shipments/"+ theObject.ObjectId + "/rates/USD"));
My question is how could I get just the "amount" value from the response?
Thank you for any help!

Instead of recreating the json layout as a class model you can work with Newtonsofts JToken. Which will leave you with less boilerplate code to create:
var json = "your json data";
// Parse the whole json string
var obj = JObject.Parse(json);
// Extract the results data as JArray
var results = (JArray)obj["results"];
// Iterate over all array entries and get the amount property
foreach(var result in results)
{
var amount = result["amount"].ToString();
// Do something with the amount
}

You could create some classes based on json then deserialize using JsonConvert
e.g https://www.newtonsoft.com/json/help/html/DeserializeObject.htm
tip:
Copy the json and put in json viewer like https://jsonformatter.curiousconcept.com/

Use https://www.newtonsoft.com/json to deserialize the json response. If you didn't want that you could use a series of string.Split()'s to get the amount. But using newtonsoft (via the nuget package manager) would be the easiest.

How can we prepare a json object where objects has different attributes

I am working on a WEB API and need to return json result in this format:
{
"responseID": "b806d829-1d9c-4c69-8d7a-576ffc4de555",
"orders": [
{
"id": order1,
"status": "Issued",
"statusDate": "2017-04-05T10:00:56.1549453+00:00",
"amount": 100000,
"quantity": 10,
"fee": 99,
"comments": "some comments"
},
{
"id": order2,
"status": "Declined",
"statusDate": "2017-04-05T10:00:56.1549453+00:00",
}
]
}
Can we prepare a json object like this where the objects within array has different attributes like in the above example order1 has 7 attributes but order2 has only 3.
My understanding is that the only way to achieve the desired results is to change the format of json object as below:
{
"responseID": "b806d829-1d9c-4c69-8d7a-576ffc4de555",
"issuesOrders": [
{
"id": order1,
"status": "Issued",
"statusDate": "2017-04-05T10:00:56.1549453+00:00",
"amount": 100000,
"quantity": 10,
"fee": 99,
"comments": "some comments"
} ],
"declinedOrders": [
{
"id": order2,
"status": "Declined",
"statusDate": "2017-04-05T10:00:56.1549453+00:00",
}
]
}
Is my understanding is correct?

The underlying connection was closed - webAPI ,WCF

I have a REST Service calling a WCF service. The method in WCf service returns data as expected. Here is the Json format of the c#object.
[
{
"$id": "1",
"children": [],
"id": 1,
"name": "1",
"owner": {
"userId": 1,
"username": "testuser",
"firstName": null,
"lastName": null
},
"parent": null,
"permissions": [],
"type": 0
}
]
When There is a complex object the WCf service is throwing an error "The underlying connection was closed: The connection was closed unexpectedly"
[
{
"$id": "1",
"Children": [
{
"$id": "2",
"Children": [],
"Id": 603268262,
"Name": "testfolder",
"Owner": {
"UserId": 555,
"Username": "testuser",
"FirstName": null,
"LastName": null
},
"Parent": {
"$ref": "1"
},
"Permissions": null,
"Type": 0
}
],
"Id": 1,
"Name": "555",
"Owner": {
"UserId": 555,
"Username": "testuser",
"FirstName": null,
"LastName": null
},
"Parent": null,
"Permissions": null,
"Type": 0
}
]
I have tried most answers on this SO question. Why do I get the error only when a complex object is returned?

you need to check data contracts ,take a look at this : http://msdn.microsoft.com/en-us/library/aa347850.aspx

Found the answer just after posting the question. I did notice that there is a object holding a reference to a object in the Json
"Parent": {
"$ref": "1"
}
This is preventing the object from serialized. I did a deep copy and that fixed the issue

How to parse JSONData in C# (Windows Phone) using `this.`

In Windows Phone App.. I am parsing JSON Data By (get,set) method
I got another way of processing JSON data from this URL
In the part of this site (http://www.dfg-team.com/json-feeds-on-windows-phone/?lang=en)
Is used two techniques to parse json data..
in that I want to use this. Key word for processing JSON data ..
But My app have data Have a Lot of Json data which contains lot of JSON Arrays and JSON Objects. But its not a Problem in that I have main problem is My json contains Json array inside json object or json object inside the json array so at here we got problem.
This is My JSon data I want to parse these fields.. using this. method
{
"returnCode": "success",
"SData": {
"results": [
{
"wdetails": [
{
"noffers": [],
"offers_count": 0,
"name": "yahoo.com",
"recentoffers_count": 0,
"sku": "30072826",
"url": "http://www.yahoo.com"
},
{
"noffers": [
{
"id": "3aggEYoyaso",
"price": "179.99",
"firstrecorded_at": 13700,
"lastrecorded_at": 13700,
"seller": "google",
"availability": "In stock, ships same Business Day.",
"currency": "USD"
}
],
"offers_count": 1,
"name": "frys.com",
"recentoffers_count": 1,
"sku": "789",
"url": "http://www.google.com"
},
{
"listprice_currency": "USD",
"noffers": [
{
"id": "2SlCKQKm",
"price": "192.37",
"firstrecorded_at": 111,
"lastrecorded_at": 111,
"seller": "Amazon",
"availability": "13 In Stock",
"currency": "USD"
}
],
"offers_count": 1,
"name": "amazon.com",
"listprice": "288.56",
"recentoffers_count": 1,
"sku": "1084089",
"url": "http://www.amazon.com"
}
],
"model": "GGGG",
"weight": "771107.03",
"price_currency": "USD",
"gtins": [
"00839294"
],
"mpn": "GGGG",
"cat_id": "25552",
"height": "98.81",
"features": {
"Product Type - General": "Tablet",
"Height (in.)": "1.70"
},
"length": "416.56",
"geo": [
"usa"
],
"width": "267.97",
"category": "Tablets",
"price": "179.99",
"updated_at": 138,
"color": "Black",
"manufacturer": "google",
"images_total": 1,
"images": [
"https://evbdn.eventbrite.com/s3-s3/eventlogos/1832816/google.png"
],
"brand": "Dell",
"offers_total": 180
}
],
"total_results_count": 1,
"results_count": 1,
"code": "OK",
"offset": 0
}
}
I want to parse this Using this. in C#.
In Android I done this By hash map method, in Windows Phone this. is similar to is hash map so I am using this..

I am editing my previous answer :-
JObject json = JObject.Parse(yourJson);
if you need results to be parsed
this.ClassOfResult= json ["SData"]["results"];
if you want the 'wdetails' in the Json to get parsed you can try this
this.parentclass.wdetailsClass= json ["SData"]["results"]["wdetails"];
Hope that this will give you some idea.