I got confused when Im try to parsing json in object class.
Im using klaxon but I just wonder how to read the file because I cannot use activity or application to add it into buffered object.
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I have a java application that outputs data in Json format (via Gson). I write that data to a file. That file is then read by a C++ application. The C++ application is using jsoncpp to deserialize the json. However, it appears that the C++ application cannot properly deserialize the Json (which is the whole point of using Json).
The problem seems to relate to the class name being included in the Gson output. Gson output sample:
{"nameOfClass":{"fieldName":"fieldvalue","secondFieldName":1}
As far as I can tell, "nameOfClass" is throwing off jsoncpp. Perhaps my jsoncpp deserialize method is incorrect? I have specific code to handle the different fields, but nothing that specifically handles that initial class name. Is that something I need to handle?
Short answer: user error
Longer answer:
It turns out I was serializing the wrong object. The class of this object CONTAINS a field of type "nameOfClass". What I wanted was that FIELD to be serialized, not the whole object. Because of my inexperience with Json and unfortunate choice of the field's name, I thought the output was malformed. Once I got the field from the object and serialized that, everything was fine.
In my ReactJS app, I want to validate a JSON object coming from API. I have the valid JSON schema and I want to make sure the coming object is in the correct structure before passing it.
Is there any React plugin which I can use for this.
If you want to draw the UI based on the json object after schema validation, then react-json-schema-form is your friend
I am trying to read a big JSON object in node.js app. I am getting the object in variable called data.
Then I am trying to console.log(data.weatherdata) the result is undefined. However, the JSON object is valid and it works fine on this fiddle
So the problem occurs on the server side? are you sure that your object is correctly parsed? Have you tried calling Json.parse on data before trying to console.log(data.weatherdata)?
I'm new to cloudant and still figuring out various APIs that it provides for access and retrieval.
So far, I've used findbyIndex using selector string which returns JSON as de-serialised object of the POJO supplied.
For a certain use case which I'm working- I need to get JSON only and not the de-seralised object. Is there any way or API from which I can get the actual cloudant doc as JSON only ?
If you know the ID of the document you want to read only the raw JSON, you can use the find method to get the raw inputstream from the request. Currently using the findByIndex method you can only get a deserialised java object back, so you could always use a Map object for your POJO. Although that being said it might be possible to pass the type String for the class to deserialise, however I have not tested this.
I'm sure there is a simple way to do this, but I haven't found a way to do it. How do I go about parsing a simple json array: [1] as a List[Integer] or List[String] with the play framework Json Library in scala?
All of the examples I have seen in the documentation assume you are working with an object and are accessing an attribute in the object. When I try to parse the json I get an error:
jsonResult.as[List[String]]
JsError(List((,List(ValidationError(error.expected.jsarray,WrappedArray())))))