I have a JSON string returned from an API and it has 1 field - ApiErrorMessage and an array - BlogCategoryList
entry = "{\"ApiErrorMessage\":null,\"BlogCategoryList\":
[{\"BlogCategoryId\":2,\"BlogCategoryDescr\":\"To Start\"},
{\"BlogCategoryId\":1,\"BlogCategoryDescr\":\"Introduction\"},
{\"BlogCategoryId\":1,\"BlogCategoryDescr\":\"Introduction\"}]}"
In need to extract out that JSON string array to a variable that just has that JSON string array (it should look like below). As as I need to pass it along to be deserialized.
{"BlogCategoryList":
[{"BlogCategoryId":2,"BlogCategoryDescr":"To Start"},
{"BlogCategoryId":1,"BlogCategoryDescr":"Introduction"},
{"BlogCategoryId":1,"BlogCategoryDescr":"Introduction"}]
}
public class BlogCategoryResult
{
public BlogCategoryResult()
{
this.BlogCategoryList = new List<BlogCategory>();
}
public string ApiErrorMessage { get; set; }
public List<BlogCategory> BlogCategoryList { get; set; }
}
My code. Just not sure how to extract it.
// Note: entry is a string type.
var entry = result.Content.ReadAsStringAsync().Result;
// I tried this, but the result is not correct.
string[] resultArray = entry.Split('[');
// I tried this, I get the list but then I get 'Can not convert Array to String' on the last command where I do the cast.
JObject o = JObject.Parse(entry);
string name = (string)o["ApiErrorMessage"];
JArray list = (JArray)o["BlogCategoryList"];
string listofentries = (string)list;
// Deserializing the response (just the list) received from web api and storing into a model.
blogCategoryResult.BlogCategoryList = JsonConvert.DeserializeObject<List<BlogCategory>>
(listofentries);
I think that you should deserialize the entire json by passing the BlogCategoryResult class between the < and > of JsonConvert.DeserializeObject, and the whole entry variable in the ( and ), after that you can easily pick the BlogCategoryList property
var entry = result.Content.ReadAsStringAsync().Result;
blogCategoryResult.BlogCategoryList = JsonConvert
.DeserializeObject<BlogCategoryResult>(entry)
.BlogCategoryList;
Related
I am working in VS 2015 and c#.
I have a Json String which has a list of collections, each collection represents an object,
string wsjson =
"{
"customAttributes":
[{"description":"xxxxxxx","id":11,"value":"xxxxxxx"},{"description":"xxxxxxx","id":10,"value":"xxxxxxx"}],
"location":{"account":"xxxxxxx","cabinet":"xxxxxxx"},
"misc":{"approved":false,"archived":false,"deleted":false,"echo":true,"external":false,"favorite":false,"officialLocked":false,"signed":false},
"permissions":[{"xxxxxxx":true,"xxxxxxx":false,"edit":true,"noAccess":false,"share":true,"view":true}],
"standardAttributes":{"aclStatus":"xxxxxxx","created":"\/Date(xxxxxxx)\/","createdBy":"xxxxxxx","createdByGuid":"xxxxxxx","envId":"xxxxxxx","extension":"ndws","id":"xxxxxxx","modified":"\/Date(xxxxxxx)\/","modifiedBy":"xxxxxxx","modifiedByGuid":"xxxxxxx","name":"xxxxxxx","officialVer":1,"size":4,"syncMod":xxxxxxx,"url":"xxxxxxx","versions":1}}"
DataSet wsdataSet = JsonConvert.DeserializeObject<DataSet>(wsjson);
I am getting an error. I tried to follow this (Deserializing Json String into multiple Object types) solution but I am getting error for this line as my jason data is in a string and no function to parse string.
var j = JArray.Parse(data);
Here is the visual image of the jason data.
Actual code block in my program is:
foreach (DataRow row in dataTable.Rows)
{
string wsjson = GetWorkspaceProfile(row[0].ToString());
DataSet wsdataSet = JsonConvert.DeserializeObject<DataSet>(wsjson);
DataTable wsdataTable = wsdataSet.Tables["standardAttributes"];
foreach (DataRow wsrow in wsdataTable.Rows)
{
cmbWorkspaceByCabinet.Items.Add(new KeyValuePair<string, string>(row["envId"].ToString(), wsrow["name"].ToString()));
}
}
Where GetWorkspaceProfile is a string type return function which return me JSON data as string like the image above.
public string GetWorkspaceProfile(string WorkspaceId)
{
string responseStr = "";
string url = "v1/Workspace/" + WorkspaceId + "/info";
RestType type = RestType.GET;
Boolean useXml = false;
RestRequest rr = FormRequest(type, url, useXml);
IRestResponse response;
try
{
response = executeRequest(rr);
responseStr = response.Content;
}
catch (Exception ex)
{
return null;
}
return responseStr;
}
JArray.Parse will not work, because you don't have a json array, it is an object. Also not the all values of that object are collections, for example location is also object, not a collection. You have some options to parse it
Parse root object into Dictionary
JsonConvert.DeserializeObject<Dictionary<string, string>>(wsjson)
then parse every value of the dictionary to array if value is array and to dictionary if value is object.
Create a C# class according to your json data and parse string directly into instance of that class
JsonConvert.DeserializeObject<JsonModel>(wsjson);
where JsonModel is the class you need to create.
You can use JArray and JToken to get the values you want using json path.
This is with the Docusign Rest api. When I call ToJson() on an EnvelopeDefinition, it returns the correct info, but I would like it to not serialize the base64 array for when I am writing this out to a log file. I tried using the [JsonIgnore] directive, but that stopped the array from being serialized altogether. Do I need to override the Serialize method on this class or just create another method, something like ToJsonForLogging() and not serialize that array?
I have created an extension method that will work for you. You can call this extension method in your code as follows
string json = envelopeDefinition.ToJsonLog(logDocumentBase64:false)
I am copying the DocumentBase64 into a temporary List and then using .ToJson() function to log without the documentBase64 property.
public static class EnvelopeDefinitionExtensions
{
public static string ToJsonLog(this EnvelopeDefinition envDefinition, bool logDocumentBase64 = true)
{
if (logDocumentBase64) return envDefinition.ToJson();
var tempDocumentBase64List = new List<string>();
foreach(var doc in envDefinition.Documents)
{
tempDocumentBase64List.Add(doc.DocumentBase64);
doc.DocumentBase64 = null;
}
string json = envDefinition.ToJson();
int i =0;
foreach(var doc in envDefinition.Documents)
{
doc.DocumentBase64 = tempDocumentBase64List[i];
i++;
}
return json;
}
}
i have json string like this downbelow
{"0":{"in":"mmm","loc":"1234"},"1":{"in":"mmm","loc":"1234"}}
Now i need to parse them as like
in | loc
---------
mmm| 1234
mmm| 1234
So far i did
public with sharing class Search
{
public String strTag {get;set;}
public String strlocation {get;set;}
public String result {get;set;}
public PageReference find() {
HttpRequest req = new HttpRequest();
HttpResponse res = new HttpResponse();
Http http = new Http();
req.setEndpoint('http://test.3spire.net/index.php?in='+strTag+'&loc='+strlocation);
req.setMethod('GET');
//these parts of the POST you may want to customize
req.setCompressed(false);
req.setBody('key1=value1&key2=value2');
req.setHeader('Content-Type', 'application/x-www-form-urlencoded');
try {
res = http.send(req);
} catch(System.CalloutException e) {
system.debug('Callout error: '+ e);
result = ''+e;
}
Result results = (Result) JSON.deserialize(res.getBody(),ResultSet.class);
result = res.getBody();
system.debug(res.getBody());
return null;
}
public class ResultSet{
public List<Result> resultSet;
}
public class Result
{
public String ins;
public String loc;
}
}
But its returns
System.TypeException: Invalid conversion from runtime type Search.ResultSet to Search.Result
How can i solved this problem
Thanks in advance
You are calling JSON.deserialize(res.getBody(),ResultSet.class). The second parameter ResultSet is the Apex object type you want the result to be. But then you attempt to cast it to a type of Result instead.
Either do
Result results = JSON.deserialize(res.getBody(), Result.class);
or
ResultSet results = JSON.deserialize(res.getBody(), ResultSet.class);
In your case, based on the JSON it would seem you want the second option. However, your JSON doesn't quite match your ResultSet class either. Your JSON is a map, not a list. Also, there's a field mismatch between "in" and "ins". This JSON is what would match your ResultSet class:
{{"ins":"mmm","loc":"1234"},{"ins":"mmm","loc":"1234"}}
I have a method being posted to via AJAX with the following header:
public JsonResult GetDocuments(string searchTerm, SortRequest sort)
The SortRequest object is defined as follows:
[DataContract]
public class SortRequest
{
[DataMember(Name = "field")]
public string Field { get; set; }
[DataMember(Name = "dir")]
public string Direction { get; set; }
}
Because of legacy code, the JSON object has the property name "dir" which doesn't directly match the C# property name. We want to use Json.NET as the model binder for JSON requests because it is able to handle this, but the problem is that the JSON coming into the model binder looks like a single object with two top level properties, "searchTerm" and "sort". The deserialization process then tries to map that entire JSON string into each method parameter which obviously fails.
I have tried looking through the now open source .NET MVC code and have not yet been able to determine how the DefaultModelBinder class handles this gracefully. The only option I can see so far is to convert every JSON action to take in a single request parameter but this doesn't seem like a good solution as the DefaultModelBinder doesn't require this.
Edit for clarification:
The JSON request string looks something like this:
{
"searchTerm": "test",
"sort": {
"field": "name",
"dir": "asc"
}
}
We are overriding the DefaultModelBinder and only using Json.NET when the request is of type application/json. Here is the relevant code:
var request = controllerContext.HttpContext.Request;
request.InputStream.Seek(0, SeekOrigin.Begin);
using (var reader = new StreamReader(request.InputStream))
{
var jsonString = reader.ReadToEnd();
result = JsonConvert.DeserializeObject(jsonString, bindingContext.ModelType);
}
The bindingContext.ModelType is going to be set to String and SortRequest for each parameter in the method, but since the above is a single JSON object, it doesn't map to either of those types and thus inside the method itself, everything is set to default values.
I think the JsonProperty attribute can be used for this as follows:
[DataContract]
public class SortRequest
{
[DataMember(Name = "field")]
[JsonProperty("field")]
public string Field { get; set; }
[DataMember(Name = "dir")]
[JsonProperty("dir")]
public string Direction { get; set; }
}
Update
Based upon the json add a binding prefix:
public JsonResult GetDocuments(string searchTerm, [Bind(Prefix="sort"] SortRequest sort)
I ended up going with a solution using the JToken.Parse method in the Json.NET library. Essentially what is happening is that we check the top level properties of the JSON object and see if there exists the current action parameter we are trying to bind to. Where this falls down is if there is overlap between the parameter name of the action and a property name of a single request being passed in. I think this is enough of an edge case to let slide as it would require only a single object be passed into an action that is expecting multiple.
Here is the modified BindModel method:
public override object BindModel(ControllerContext controllerContext, ModelBindingContext bindingContext)
{
object result;
if (IsJSONRequest(controllerContext))
{
var request = controllerContext.HttpContext.Request;
request.InputStream.Seek(0, SeekOrigin.Begin);
using (var reader = new StreamReader(request.InputStream))
{
var jsonString = reader.ReadToEnd();
// Only parse non-empty requests.
if (!String.IsNullOrWhiteSpace(jsonString))
{
// Parse the JSON into a generic key/value pair object.
var obj = JToken.Parse(jsonString);
// If the string parsed and there is a top level property of the same
// name as the parameter name we are looking for, use that property
// as the JSON object to de-serialize.
if (obj != null && obj.HasValues && obj[bindingContext.ModelName] != null)
{
jsonString = obj[bindingContext.ModelName].ToString();
}
}
result = JsonConvert.DeserializeObject(jsonString, bindingContext.ModelType);
}
}
else
{
result = base.BindModel(controllerContext, bindingContext);
}
return result;
}
I need to parse this json string to values.
"start": { "dateTime": "2013-02-02T15:00:00+05:30" }, "end": { "dateTime": "2013-02-02T16:00:00+05:30" },
The problem is I am using JSONParser in apex (salesforce).
And my class is:
public class wrapGoogleData{
public string summary{get;set;}
public string id{get;set;}
public string status;
public creator creator;
public start start;
public wrapGoogleData(string entnm,string ezid,string sta, creator c,start s){
summary= entnm;
id= ezid;
status = sta;
creator = c;
start = s;
}
}
public class creator{
public string email;
public string displayName;
public string self;
}
public class start{
public string datetimew;
}
I am able to get all the datat from this except the datetime in the above string. As datetime is a reserved keyword in apex so i am not able to give the variable name as datetime in my class.
Any suggestion !!
Json Parser code:
JSONParser parser = JSON.createParser(jsonData );
while (parser.nextToken() != null) {
// Start at the array of invoices.
if (parser.getCurrentToken() == JSONToken.START_ARRAY) {
while (parser.nextToken() != null) {
// Advance to the start object marker to
// find next invoice statement object.
if (parser.getCurrentToken() == JSONToken.START_OBJECT) {
// Read entire invoice object, including its array of line items.
wrapGoogleData inv = (wrapGoogleData)parser.readValueAs(wrapGoogleData.class);
String s = JSON.serialize(inv);
system.debug('Serialized invoice: ' + s);
// Skip the child start array and start object markers.
//parser.skipChildren();
lstwrap.put(inv.id,inv);
}
}
}
}
Similar to Kumar's answer but without using an external app.
Changing your start class was the right idea
public class start{
public string datetimew;
}
Now, just parse the JSON before you run it through the deserializer.
string newjsondata = jsonData.replace('"dateTime"','"datetimew"');
JSONParser parser = JSON.createParser(newjsondata);
while (parser.nextToken() != null) {
...
}
Use string.replace() function and replace keys named dateTime with something like dateTime__x and then you can parse using Json.deserialize if you have converted your json to apex using json to apex convertor app on heruko platform
http://json2apex.herokuapp.com/
The above link points to an app that will convert Json into apex class and then you can use Json.serialize to parse json into apex class structure.