Develop Reference

Deserializing a nested JSON string, cannot access properties

I am having issues deserializing a nested JSON array from the Genius lyric website API. I formulated the object using http://json2csharp.com. When I deserialize the object, I am unable to access the properties inside of the class, which wasn't entirely unexpected, I am just not sure how to properly design an actual solution to the problem. The JSON object conversions work fine when they are not nested.
What would be the best way to go about handling this?
Here is the conversion code:
string test = await G.SearchGeniusASync(textBox1.Text);
var data = JsonConvert.DeserializeObject<GeniusApiObject>(test);
Here is my class:
class GeniusApiObject
{
public class Meta
{
public int status { get; set; }
}
public class Stats
{
public bool hot { get; set; }
public int unreviewed_annotations { get; set; }
public int concurrents { get; set; }
public int pageviews { get; set; }
}
public class PrimaryArtist
{
public string api_path { get; set; }
public string header_image_url { get; set; }
public int id { get; set; }
public string image_url { get; set; }
public bool is_meme_verified { get; set; }
public bool is_verified { get; set; }
public string name { get; set; }
public string url { get; set; }
public int iq { get; set; }
}
public class Result
{
public int annotation_count { get; set; }
public string api_path { get; set; }
public string full_title { get; set; }
public string header_image_thumbnail_url { get; set; }
public string header_image_url { get; set; }
public int id { get; set; }
public int lyrics_owner_id { get; set; }
public string lyrics_state { get; set; }
public string path { get; set; }
public int? pyongs_count { get; set; }
public string song_art_image_thumbnail_url { get; set; }
public Stats stats { get; set; }
public string title { get; set; }
public string title_with_featured { get; set; }
public string url { get; set; }
public PrimaryArtist primary_artist { get; set; }
}
public class Hit
{
public List<object> highlights { get; set; }
public string index { get; set; }
public string type { get; set; }
public Result result { get; set; }
}
public class Response
{
public List<Hit> hits { get; set; }
}
public class RootObject
{
public Meta meta { get; set; }
public Response response { get; set; }
}
}
This is the source for the SearchGeniusASync method in case it is helpful:
public async Task<string>SearchGeniusASync(string searchParameter)
{
httpClient.DefaultRequestHeaders.Authorization = new System.Net.Http.Headers.AuthenticationHeaderValue("Bearer", clientAccessToken);
var result = await httpClient.GetAsync(new Uri("https://api.genius.com/search?q=" + searchParameter), HttpCompletionOption.ResponseContentRead);
var data = await result.Content.ReadAsStringAsync();
return data;
}
This is the scope I am given access to:
https://i.imgur.com/9mZMvfp.png
Here's a sample JSON request in plaintext:
https://pastebin.com/iA8dQafW

GeniusApiObject is not needed in the code, but I'll leave it in just because it helps organize things (may be that something else also has a RootObject from the auto-generator).
The problem is that you are trying to deserialize to what is just an empty class, the class itself has no properties, so you can't deserialize to it. You need to deserialize to the GeniusApiObject.RootObject.
var data = JsonConvert.DeserializeObject<GeniusApiObject.RootObject>(test);
Will deserialize to the .RootObject subclass. This is verified working:
Where I'm using File.ReadAllText("test.json") to load the example API data provided.
Here is a .NET Fiddle showing it working (without the root object and only one song in the response). Thanks to #maccttura.

Refit not working (Github API)

I am trying to figure out how to use the Refit library to make GET requests but I do not know why it is not working. I am following the example on the refit github page. What am I missing? It seems like the GetUser("octocat") method is not working. I've tried searching for other examples on how to use refit but wasn't able to find anything.
private static async void getUser()
{
var gitHubApi = RestService.For<IGitHubApi>("https://api.github.com");
var octocat = await gitHubApi.GetUser("octocat");
}
public class User
{
[JsonProperty("login")]
public string Login { get; set; }
[JsonProperty("id")]
public long Id { get; set; }
[JsonProperty("avatar_url")]
public string AvatarUrl { get; set; }
[JsonProperty("gravatar_id")]
public string GravatarId { get; set; }
[JsonProperty("url")]
public string Url { get; set; }
[JsonProperty("html_url")]
public string HtmlUrl { get; set; }
[JsonProperty("followers_url")]
public string FollowersUrl { get; set; }
[JsonProperty("following_url")]
public string FollowingUrl { get; set; }
[JsonProperty("gists_url")]
public string GistsUrl { get; set; }
[JsonProperty("starred_url")]
public string StarredUrl { get; set; }
[JsonProperty("subscriptions_url")]
public string SubscriptionsUrl { get; set; }
[JsonProperty("organizations_url")]
public string OrganizationsUrl { get; set; }
[JsonProperty("repos_url")]
public string ReposUrl { get; set; }
[JsonProperty("events_url")]
public string EventsUrl { get; set; }
[JsonProperty("received_events_url")]
public string ReceivedEventsUrl { get; set; }
[JsonProperty("type")]
public string Type { get; set; }
[JsonProperty("site_admin")]
public bool SiteAdmin { get; set; }
[JsonProperty("name")]
public string Name { get; set; }
[JsonProperty("company")]
public string Company { get; set; }
[JsonProperty("blog")]
public string Blog { get; set; }
[JsonProperty("location")]
public string Location { get; set; }
[JsonProperty("email")]
public object Email { get; set; }
[JsonProperty("hireable")]
public object Hireable { get; set; }
[JsonProperty("bio")]
public object Bio { get; set; }
[JsonProperty("public_repos")]
public long PublicRepos { get; set; }
[JsonProperty("public_gists")]
public long PublicGists { get; set; }
[JsonProperty("followers")]
public long Followers { get; set; }
[JsonProperty("following")]
public long Following { get; set; }
[JsonProperty("created_at")]
public System.DateTimeOffset CreatedAt { get; set; }
[JsonProperty("updated_at")]
public System.DateTimeOffset UpdatedAt { get; set; }
}
interface IGitHubApi
{
[Get("/users/{user}")]
Task<User> GetUser(string user);
}

If you want to query GitHub API you need to set a User-Agent
There's 2 way to do this with Refit:
1 - Set the headers on your contract
[Headers("User-Agent: My Favorite User Agent!")]
public interface IGitHubApi
{
[Get("/users/{user}")]
Task<User> GetUser(string user);
}
2 - Use a HttpClient and set it there
var httpClient = new HttpClient();
httpClient.DefaultRequestHeaders.Add("User-Agent", "My Favorite User Agent!");
httpClient.BaseAddress = new Uri("https://api.github.com");
var gitHubApi = RestService.For<IGitHubApi>(httpClient);
var user = await gitHubApi.GetUser("octocat");

If you are using the Github API than You need to set the UserAgent in the Header,
just as follows,
{
BaseAddress = new Uri("https://api.github.com"),
DefaultRequestHeaders = {UserAgent = { ProductInfoHeaderValue.Parse("NakWarsi")}} //here I have put my username("NakWarsi") what you need to replace with your username
};
_restApiService = RestService.For<IGitHubApi>(_client);
Here I have created a sample project using Github take a look for detailed information

Creating .NET extension on Integration Studio

I'm trying to use Integration Studio for the first time to create an extension to make an API call with a file upload. Unfortunately, I'm not very well versed with .NET. This is the code I'm trying to replicate on Integration Studio:
public static async Task<PendingAttachment> Upload(string FilePath)
{
byte[] byteFile = System.IO.File.ReadAllBytes(FilePath);
FileInfo fi = new FileInfo(FilePath);
PendingAttachment pa = null;
using (var client = new HttpClient())
{
string token = "XXXXXXXXXXXXX";
client.DefaultRequestHeaders.Add("Authorization", "Bearer" + token);
using (var content = new MultipartFormDataContent("Upload----" + DateTime.Now.ToString(CultureInfo.InvariantCulture)))
{
content.Add(new StreamContent(new MemoryStream(byteFile)), "attachment", fi.Name);
using (var message = await client.PostAsync("https://www.yammer.com/api/v1/pending_attachments", content))
{
if (message.IsSuccessStatusCode)
{
var result = await message.Content.ReadAsStringAsync();
pa = Newtonsoft.Json.JsonConvert.DeserializeObject<PendingAttachment>(result);
return pa;
}
}
}
}
return null;
}
So, this is what I've tried. I have created the following structures on Integration Studio:
public class PendingAttachment
{
public int id { get; set; }
public int network_id { get; set; }
public string url { get; set; }
public string web_url { get; set; }
public string type { get; set; }
public string name { get; set; }
public string original_name { get; set; }
public string full_name { get; set; }
public string description { get; set; }
public string content_type { get; set; }
public string content_class { get; set; }
public string created_at { get; set; }
public int owner_id { get; set; }
public bool official { get; set; }
public string small_icon_url { get; set; }
public string large_icon_url { get; set; }
public string download_url { get; set; }
public string thumbnail_url { get; set; }
public string preview_url { get; set; }
public string large_preview_url { get; set; }
public int size { get; set; }
public string owner_type { get; set; }
public string last_uploaded_at { get; set; }
public int last_uploaded_by_id { get; set; }
public string last_uploaded_by_type { get; set; }
public object uuid { get; set; }
public object transcoded { get; set; }
public object streaming_url { get; set; }
public string path { get; set; }
public int y_id { get; set; }
public string overlay_url { get; set; }
public string privacy { get; set; }
public object group_id { get; set; }
public bool is_pending { get; set; }
public int height { get; set; }
public int width { get; set; }
public string scaled_url { get; set; }
public Image image { get; set; }
public int latest_version_id { get; set; }
public string status { get; set; }
public Latest_Version latest_version { get; set; }
public Stats stats { get; set; }
public string _OriginalFileName { get; set; }
}
public class Image
{
public string url { get; set; }
public int size { get; set; }
public string thumbnail_url { get; set; }
}
public class Latest_Version
{
public int id { get; set; }
public int file_id { get; set; }
public string content_type { get; set; }
public int size { get; set; }
public int uploader_id { get; set; }
public string created_at { get; set; }
public string path { get; set; }
public string download_url { get; set; }
public string thumbnail_url { get; set; }
public string preview_url { get; set; }
public string large_preview_url { get; set; }
public string post_processed_id { get; set; }
public object streaming_url { get; set; }
public string revert_url { get; set; }
public int height { get; set; }
public int width { get; set; }
public string scaled_url { get; set; }
public string thumbnail_path { get; set; }
public string preview_path { get; set; }
public string large_preview_path { get; set; }
public string status { get; set; }
}
public class Stats
{
public int following { get; set; }
public int followers { get; set; }
public int updates { get; set; }
public object first_reply_id { get; set; }
public object first_reply_at { get; set; }
public int latest_reply_id { get; set; }
public string latest_reply_at { get; set; }
public int shares { get; set; }
}
As this extension will be used for mobile, I have added 2 input parameters, to send the FileData as well as the FileName, to avoid having to extract that data. I have added an output parameter with the data type PendingAttachment which is the structure mentioned above.
So the issue I'm facing is that since it is an async method, Visual Studio isn't allowing me to have an output parameter. So is there a way to fix this?
P.S: Yes, I have tried implementing this normally on Service Studio, by referencing the Box File Upload plugin. It did not work (gave a 500 error). I have also been assured that this method works properly.
Thank you for your help!

If you need to use an async method in one that's not, you can call the method .Wait() on the Task object returned by the async method. This will hold the calling thread until the asynchronous code has been fully executed.

How to parse specific data from JSON response [duplicate]

This question already has answers here:
How can I deserialize JSON with C#?
(19 answers)
Closed 5 years ago.
I am trying to parse JSON response using newtownsoft.json trying to parse the followers count and writeline.
This is the code:
using Newtonsoft.Json;
using System;
using System.IO;
using System.Net;
namespace J2C
{
class Checker
{
static void Main(string[] args)
{
var client = new WebClient();
var text = client.DownloadString("https://www.instagram.com/2saleapp/?__a=1");
User userObject = JsonConvert.DeserializeObject<User>(text);
Console.WriteLine("Followers count =" + userObject.followed_by);
Console.ReadKey();
}
}
}
and this is the API response:
{
"user": {
"biography": "Install 2Sale app to post your AD instantly!\nSnap, post, and sell. Its time to sale.",
"blocked_by_viewer": false,
"country_block": false,
"external_url": "http://autoigs.com/2sale_install",
"external_url_linkshimmed": "http://l.instagram.com/?u=http%3A%2F%2Fautoigs.com%2F2sale_install&e=ATMoKdz87_iz044M0ebrfU95WQT7JqBpnlGiGH9UDOsn7dRax7G6ZMxjh7wMuHY",
"followed_by": {
"count": 6511
},
"followed_by_viewer": false,
"follows": {
"count": 19
},
I just want to WriteLine Followed_by count numbers.
Any one can help me?
thank you

Copy the raw json to the clipboard. In Visual Studio menu select Edit > Paste Special > Paste JSON As Classes (this item is present at least since version VS2015. For earlier versions see). This will generate a set of classes.
public class Rootobject
{
public User user { get; set; }
public string logging_page_id { get; set; }
}
public class User
{
public string biography { get; set; }
public bool blocked_by_viewer { get; set; }
public bool country_block { get; set; }
public string external_url { get; set; }
public string external_url_linkshimmed { get; set; }
public Followed_By followed_by { get; set; }
public bool followed_by_viewer { get; set; }
public Follows follows { get; set; }
public bool follows_viewer { get; set; }
public string full_name { get; set; }
public bool has_blocked_viewer { get; set; }
public bool has_requested_viewer { get; set; }
public string id { get; set; }
public bool is_private { get; set; }
public bool is_verified { get; set; }
public string profile_pic_url { get; set; }
public string profile_pic_url_hd { get; set; }
public bool requested_by_viewer { get; set; }
public string username { get; set; }
public object connected_fb_page { get; set; }
public Media media { get; set; }
}
public class Followed_By
{
public int count { get; set; }
}
public class Follows
{
public int count { get; set; }
}
public class Media
{
public Node[] nodes { get; set; }
public int count { get; set; }
public Page_Info page_info { get; set; }
}
public class Page_Info
{
public bool has_next_page { get; set; }
public string end_cursor { get; set; }
}
public class Node
{
public string __typename { get; set; }
public string id { get; set; }
public bool comments_disabled { get; set; }
public Dimensions dimensions { get; set; }
public object gating_info { get; set; }
public string media_preview { get; set; }
public Owner owner { get; set; }
public string thumbnail_src { get; set; }
public object[] thumbnail_resources { get; set; }
public bool is_video { get; set; }
public string code { get; set; }
public int date { get; set; }
public string display_src { get; set; }
public string caption { get; set; }
public Comments comments { get; set; }
public Likes likes { get; set; }
public int video_views { get; set; }
}
public class Dimensions
{
public int height { get; set; }
public int width { get; set; }
}
public class Owner
{
public string id { get; set; }
}
public class Comments
{
public int count { get; set; }
}
public class Likes
{
public int count { get; set; }
}
Next, use the Rootobject. It's supposed to work.
var client = new WebClient();
var text = client.DownloadString("https://www.instagram.com/2saleapp/?__a=1");
Rootobject rootObject = JsonConvert.DeserializeObject<Rootobject>(text);
Console.WriteLine("Followers count =" + rootObject.user.followed_by.count);
In general, you should change the naming to conform to the generally accepted naming rules. You should use the JsonProperty attribute.
public class Rootobject
{
[JsonProperty("user")]
public User User { get; set; }
[JsonProperty("logging_page_id")]
public string LoggingPageId { get; set; }
}
And so on.

Create a class with name User in order to deserialize json string to User.
public class User
{
public string biography { get; set; }
public bool blocked_by_viewer { get; set; }
public bool country_block { get; set; }
public string external_url { get; set; }
public string external_url_linkshimmed { get; set; }
public FollowedBy followed_by { get; set; }
public string followed_by_viewer { get; set; }
public Follow follows { get; set; }
}
public class FollowedBy
{
public int count { get; set; }
}
public class Follow
{
public int count { get; set; }
}
After getting json string result using the below line for DeserializeObject to User and then assign it to new User object , after that use userObject for showing result.
User userObject = JsonConvert.DeserializeObject<User>(jsonString);
Now you have a user object that fill property with the API response.

Parse through deserialized JSON data

I am new to C#. I have successfully consumed the Mailchip API with a simple console app. I am pulling in relevant data and I have successfully used a JSON deserializer on the returned data (Newtonsoft.Json via NuGet). What I need to find is the best way to place the data into variables which I can then pass to a stored procedure to save the data. I know SQL and I know how to pass variables to a stored procedure in C# (connection strings and such).
What I don't know is how to parse through the deserialized data and then place each value into a variable or something I can pass to SQL. I know this is a vague question so here is the current code.
Class MailChimpAPIClient.cs:
//Declare the API Key
public const string APIKey = "My API Key Here";
public static void APIGet(string url)
{
//Syncronious Consumption
var syncClient = new WebClient();
syncClient.Headers.Add(APIKey);
var content = syncClient.DownloadString(url);
//Deseralize the Json String
MailChimpData data = JsonConvert.DeserializeObject<MailChimpData>(content);
}
Class: MailChimpData.cs:
[DataContract]
public class MailChimpData
{
[DataMember]
public List<Unsubscribes> unsubscribes { get; set; }
[DataMember]
public string campaign_id { get; set; }
[DataMember]
public List<Link2> _links { get; set; }
[DataMember]
public int total_items { get; set; }
[DataMember]
public Link link { get; set; }
[DataMember]
public MergeFields mergefields { get; set; }
[DataMember]
public Stats stats { get; set; }
[DataMember]
public Location location { get; set; }
[DataMember]
public List<Member> members { get; set; }
[DataMember]
public string list_id { get; set; }
}
//Unsubscribe Data
public class Link
{
public string rel { get; set; }
public string href { get; set; }
public string method { get; set; }
public string targetSchema { get; set; }
public string schema { get; set; }
}
public class Unsubscribes
{
public string email_id { get; set; }
public string email_address { get; set; }
public string timestamp { get; set; }
public string reason { get; set; }
public string campaign_id { get; set; }
public string list_id { get; set; }
public List<Link> _links { get; set; }
}
public class Link2
{
public string rel { get; set; }
public string href { get; set; }
public string method { get; set; }
public string targetSchema { get; set; }
public string schema { get; set; }
}
//List Data
public class MergeFields
{
public string FNAME { get; set; }
public string LNAME { get; set; }
}
public class Stats
{
public double avg_open_rate { get; set; }
public int avg_click_rate { get; set; }
}
public class Location
{
public double latitude { get; set; }
public double longitude { get; set; }
public int gmtoff { get; set; }
public int dstoff { get; set; }
public string country_code { get; set; }
public string timezone { get; set; }
}
public class Member
{
public string id { get; set; }
public string email_address { get; set; }
public string unique_email_id { get; set; }
public string email_type { get; set; }
public string status { get; set; }
public MergeFields merge_fields { get; set; }
public Stats stats { get; set; }
public string ip_signup { get; set; }
public string timestamp_signup { get; set; }
public string ip_opt { get; set; }
public string timestamp_opt { get; set; }
public int member_rating { get; set; }
public string last_changed { get; set; }
public string language { get; set; }
public bool vip { get; set; }
public string email_client { get; set; }
public Location location { get; set; }
public string list_id { get; set; }
public List<Link> _links { get; set; }
}
Program.cs:
class Program
{
static void Main(string[] args)
{
MailChimpApiClient.APIGet("Custom URL Here");
}
}
So when I run this and look in the Autos window of VS2013 I see this:
members: Count = 4 System.Collections.Generic.List
[0] {MailChimpAPI.Member} MailChimpAPI.Member
_links: Count = 8 System.Collections.Generic.List
email_address: email address here string
email_client: string
email_type: html string
id: (ID Here) string
ip_opt: (IP Here) string
ip_signup: string
language: string
last_changed: 9/16/15 19:31 string
list_id: (List ID Here) string
location: {MailChimpAPI.Location} MailChimpAPI.Location
member_rating: 3 int
merge_fields {MailChimpAPI.MergeFields} MailChimpAPI.MergeFields
stats: {MailChimpAPI.Stats} MailChimpAPI.Stats
status: unsubscribed string
timestamp_opt: 9/16/15 19:26 string
timestamp_signup: string
unique_email_id: (Unique Email ID Here) string
vip: FALSE bool
[1] {MailChimpAPI.Member}: MailChimpAPI.Member
[2] {MailChimpAPI.Member}: MailChimpAPI.Member
[3] {MailChimpAPI.Member}: MailChimpAPI.Member
Raw View
So for each member (0-3), I need to pull each fields value (Field names in bold) into a variable and save it to a database. I just don't know how to parse through each member.
I know this is a long question for a simple C# problem, but if you can remember way back to the beginning of the post I stated "I am new to C#"
Thanks in advance.