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How to update Rest API request Body array

I am trying to automate one API using rest API JAVA. I have kept sample request json in one file and before passing that json I want to modify some values. New values are in Map.
For example I want to modify 'company' value to 'Microsoft'(which is in hashmap newInputs). Problem is my code is adding new 'company' at the top of body instead of updating it. How do i update specific values in Items array.
json body in file
{
"Items": [
{
"newValue": "Q3",
"company": "Test",
"oldValue": "Q2",
"Date": "2022-03-27"
}
]
}
What i want to pass to API
{
"Items": [
{
"newValue": "Q3",
"company": "Microsoft",
"oldValue": "Q2",
"Date": "2022-03-27"
}
]
}
What my code is passing
{
"company": "Microsoft",
"Items": [
{
"newValue": "Q3",
"company": "Test",
"oldValue": "Q2",
"Date": "2022-03-27"
}
]
}
My code
public static String createItem(Map<String, String> newInputs) {
JSONArray jsonArray = null;
JSONObject jsonObject;
try {
jsonArray = new JSONArray(new String(
Files.readAllBytes(Paths.get("src", "test", "resources", "Payloads", "testdata.json"))));
jsonObject = new JSONObject(jsonArray.get(0).toString());
for (String key : newInputs.keySet()) {
jsonObject.put(key, newInputs.get(key));
}
jsonArray.put(0, jsonObject);
}

How to make com.fasterxml.jackson print array vertically? [duplicate]

I have data that looks like this:
{
"status": "success",
"data": {
"irrelevant": {
"serialNumber": "XYZ",
"version": "4.6"
},
"data": {
"lib": {
"files": [
"data1",
"data2",
"data3",
"data4"
],
"another file": [
"file.jar",
"lib.jar"
],
"dirs": []
},
"jvm": {
"maxHeap": 10,
"maxPermSize": "12"
},
"serverId": "134",
"version": "2.3"
}
}
}
Here is the function I'm using to prettify the JSON data:
public static String stringify(Object o, int space) {
ObjectMapper mapper = new ObjectMapper();
try {
return mapper.writerWithDefaultPrettyPrinter().writeValueAsString(o);
} catch (Exception e) {
return null;
}
}
I am using the Jackson JSON Processor to format JSON data into a String.
For some reason the JSON format is not in the format that I need. When passing the data to that function, the format I'm getting is this:
{
"status": "success",
"data": {
"irrelevant": {
"serialNumber": "XYZ",
"version": "4.6"
},
"another data": {
"lib": {
"files": [ "data1", "data2", "data3", "data4" ],
"another file": [ "file.jar", "lib.jar" ],
"dirs": []
},
"jvm": {
"maxHeap": 10,
"maxPermSize": "12"
},
"serverId": "134",
"version": "2.3"
}
}
}
As you can see under the "another data" object, the arrays are displayed as one whole line instead of a new line for each item in the array. I'm not sure how to modify my stringify function for it to format the JSON data correctly.

You should check how DefaultPrettyPrinter looks like. Really interesting in this class is the _arrayIndenter property. The default value for this property is FixedSpaceIndenter class. You should change it with Lf2SpacesIndenter class.
Your method should looks like this:
public static String stringify(Object o) {
try {
ObjectMapper mapper = new ObjectMapper();
DefaultPrettyPrinter printer = new DefaultPrettyPrinter();
printer.indentArraysWith(new Lf2SpacesIndenter());
return mapper.writer(printer).writeValueAsString(o);
} catch (Exception e) {
return null;
}
}

I don't have enough reputation to add the comment, but referring to the above answer Lf2SpacesIndenter is removed from the newer Jackson's API (2.7 and up), so instead use:
printer.indentArraysWith(DefaultIndenter.SYSTEM_LINEFEED_INSTANCE);
Source of the solution

Spring RestTemplate parse JSON object with variable keyname

I have a REST API call that returns the following JSON object. I need to parse this with Spring's RestTemplate. The problem is that the first key ISBN:0132856204 is variable (the numbers change depending on the book). How would I go about doing this?
{
"ISBN:0132856204": {
"publishers": [
{
"name": "Pearson"
}
],
"pagination": "xxiv, 862p",
"identifiers": {
"isbn_13": [
"978-0-13-285620-1"
],
"openlibrary": [
"OL25617855M"
]
},
"weight": "1340 grams",
"title": "Computer networking",
"url": "https://openlibrary.org/books/OL25617855M/Computer_networking",
"number_of_pages": 862,
"cover": {
"small": "https://covers.openlibrary.org/b/id/7290810-S.jpg",
"large": "https://covers.openlibrary.org/b/id/7290810-L.jpg",
"medium": "https://covers.openlibrary.org/b/id/7290810-M.jpg"
},
"publish_date": "2013",
"key": "/books/OL25617855M",
"authors": [
{
"url": "https://openlibrary.org/authors/OL31244A/James_F._Kurose",
"name": "James F. Kurose"
},
{
"url": "https://openlibrary.org/authors/OL658909A/Keith_W._Ross",
"name": "Keith W. Ross"
}
],
"subtitle": "A Top-Down Approach"
}
}

In here "ISBN:0132856204" is a value and also a key for your business.
To get ISBN first, what about wrapping json content with 1 more closure?
{
"yourAwesomePlaceHolderKey" :
{
"ISBN:0132856204": {
......
}
}
}
First get the ISBN key as a value, then your ISBN value can be used as a key to get related content.
First goal will be extracting -String1,Object1- pair where String1 is "yourAwesomePlaceholderKey" and second goal will be again extracting -String2,Object2- from Object1 where String2 is your ISBN key.

This is the way I solved it, using JsonPath for getting the book out of the JSON object and Jackson for mapping it to a Book object:
RestTemplate restTemplate = new RestTemplate();
String isbn = "0132856204";
String endpoint = "https://openlibrary.org/api/books?jscmd=data&format=json&bibkeys=ISBN:{isbn}";
//Get JSON as String
String jsonString = restTemplate.getForObject(endpoint, String.class, isbn);
//Configure JsonPath to use Jackson for mapping
Configuration.setDefaults(new Configuration.Defaults() {
private final JsonProvider jsonProvider = new JacksonJsonProvider();
private final MappingProvider mappingProvider = new JacksonMappingProvider();
#Override
public JsonProvider jsonProvider() {
return jsonProvider;
}
#Override
public MappingProvider mappingProvider() {
return mappingProvider;
}
#Override
public Set<Option> options() {
return EnumSet.noneOf(Option.class);
}
});
//Parse the JSON as a book
Book book = JsonPath.parse(jsonString).read("$.ISBN:" + isbn, Book.class);

You can use JsonProperty to solve
#JsonProperty("ISBN:0132856204")

Parsing JSON in java: Malformed JSON: Unexpected 'C'

Good day,
I am parsing some JSON in java (a notification from a cisco CMX system). I've parsed a lot of JSON in my time but this one refuses to get parsed. I've tried several methods: a reader with lenient mode, plain gson, etc.
The JSON I parse is valid according to jsonlint, which leads me to believe it is a problem with the parser, or maybe some hidden characters that I am unable to sanitize out. This is the JSON I receive:
{
"startTime": "08:00",
"previousEndDate": null,
"startDate": "2016-02-17",
"title": "Visitors",
"executionTime": 29,
"value": {
"primary": {
"title": "TotalVisitors",
"value": 16,
"peakValue": 0,
"breakdown": [{
"title": "RepeatVisitors",
"value": 11
}, {
"title": "NewVisitors",
"value": 5
}]
},
"average": {
"title": "TotalVisitors",
"value": 19,
"peakValue": 0,
"breakdown": [{
"title": "RepeatVisitors",
"value": 15
}, {
"title": "NewVisitors",
"value": 4
}]
},
"previousTimeRange": {
"title": "TotalVisitors",
"value": 23,
"peakValue": 0,
"breakdown": [{
"title": "RepeatVisitors",
"value": 19
}, {
"title": "NewVisitors",
"value": 4
}]
}
},
"areas": [{
"id": 20,
"name": "CineCitta"
}],
"previousStartDate": "2016-02-16",
"endDate": null,
"endTime": "09:29"
}
It seems valid to me, and the object I try to parse it into has the correct fields.
I've tried filtering out \r \t \n \0 and some combinations between them.
The code I currently have in java is:
String result = "{\"startTime\":\"08:00\",\"previousEndDate\":null,\"startDate\":\"2016-02-17\",\"title\":\"Visitors\",\"executionTime\":29,\"value\":{\"primary\":{\"title\":\"TotalVisitors\",\"value\":16,\"peakValue\":0,\"breakdown\":[{\"title\":\"RepeatVisitors\",\"value\":11},{\"title\":\"NewVisitors\",\"value\":5}]},\"average\":{\"title\":\"TotalVisitors\",\"value\":19,\"peakValue\":0,\"breakdown\":[{\"title\":\"RepeatVisitors\",\"value\":15},{\"title\":\"NewVisitors\",\"value\":4}]},\"previousTimeRange\":{\"title\":\"TotalVisitors\",\"value\":23,\"peakValue\":0,\"breakdown\":[{\"title\":\"RepeatVisitors\",\"value\":19},{\"title\":\"NewVisitors\",\"value\":4}]}},\"areas\":[{\"id\":20,\"name\":\"CineCitta\"}],\"previousStartDate\":\"2016-02-16\",\"endDate\":null,\"endTime\":\"09:29\"}";
JsonReader reader = new JsonReader(new StringReader(result));
reader.setLenient(true);
Gson gson = new Gson();
ClientInfo info = gson.fromJson(reader, ClientInfo.class);
The question is: Does anyone know how to debug a problem like this? are there sanitization techniques I can use? Other parsers?
EDIT: The code to clientinfo as requested (using project lombok, all fields are public):
#ToString
#FieldDefaults(level = AccessLevel.PUBLIC)
public class ClientInfo {
String startTime;
String previousEndDate;
String startDate;
String title;
Integer executionTime;
Value value;
Area [] areas;
String previousStartDate;
String endDate;
String endTime;
}
public class Value {
public Visitors primary;
public Visitors average;
public Visitors previousTimeRange;
}
#FieldDefaults(level = AccessLevel.PUBLIC)
public class Area {
Integer id;
String name;
}
#FieldDefaults(level = AccessLevel.PUBLIC)
public class Visitors {
String title;
Integer value;
Integer peakValue;
Record [] breakdown;
}
public class Record {
public String title;
public Integer value;
}
Thanks and good day

String result = "{\"startTime\":\"08:00\",\"previousEndDate\":null,\"startDate\":\"2016-02-17\",\"title\":\"Visitors\",\"executionTime\":29,\"value\":{\"primary\":{\"title\":\"TotalVisitors\",\"value\":16,\"peakValue\":0,\"breakdown\":[{\"title\":\"RepeatVisitors\",\"value\":11},{\"title\":\"NewVisitors\",\"value\":5}]},\"average\":{\"title\":\"TotalVisitors\",\"value\":19,\"peakValue\":0,\"breakdown\":[{\"title\":\"RepeatVisitors\",\"value\":15},{\"title\":\"NewVisitors\",\"value\":4}]},\"previousTimeRange\":{\"title\":\"TotalVisitors\",\"value\":23,\"peakValue\":0,\"breakdown\":[{\"title\":\"RepeatVisitors\",\"value\":19},{\"title\":\"NewVisitors\",\"value\":4}]}},\"areas\":[{\"id\":20,\"name\":\"CineCitta\"}],\"previousStartDate\":\"2016-02-16\",\"endDate\":null,\"endTime\":\"09:29\"}";
Gson gson = new Gson();
JsonParser parser = new JsonParser();
JsonObject jsonObj = parser.parse(result).getAsJsonObject();
ClientInfo info = gson.fromJson( jsonObj , ClientInfo.class);
You can give a try with above code.

I am a dumdum.
I assumed the parsing was what went wrong, but it was actually that my service was supposed to produce a JSON, where I did not return it as json, but the object itself resulting in a bad parsing.
Because I was so focused on the parsing I was doing I did not realize the error itself occurred on the implicit json parsing of the restful service.
That'll teach me not to test in a simple environment before moving my code to the a restful client.
Thanks and dumb greetings,
Dries

Create object from JSON with Parse & Java for Android

I have recently started doing Android development, I am using Parse.com and native Java for building the app. What I am trying to do is figure out how to create objects that are created from the JSON result via a callback from Parse Parse.com.
{
"result":
{
"count": 3,
"lang": "en-US",
"tasks": [
{
"ID": "0123",
"Name": "Task 1",
"AssingedTo": "Darxval",
"Scope": "Home"
},
{
"ID": "0124",
"Name": "Task 2",
"AssingedTo": "Darxval",
"Scope": "Home"
},
{
"ID": "0125",
"Name": "Task 3",
"AssingedTo": "Darxval",
"Scope": "Home"
}
]
}
}
The method I call via Parse is shown below.
(see documentation for more info on the method here):Parse Documentation
ParseCloud.callFunctionInBackground("RetrieveTasks", new HashMap<String, Object>(), new FunctionCallback<Object>() {
void done(Object result, ParseException e) {
if (e == null) {
// do stuff with object
}
}
});
I have tried to change the Function callback to a class that takes in the json described as a bunch of strings and a ListArray of Task objects. But it does not create the object. It always want to use HashMap. Is there a way to turn the data into the object I want instead of a HashMap? Is there a interface I need to "implement" on my objects to allow the creation of the object on callback?
Any help in this would be greatly appreciated.

What object is added to the HashMap? Is it a JSONObject?
If so, you can convert a JSONObject to whatever custom object you are looking for using a constructor, and the data from the JSONObject.
For example, if your JSONObject that is returned is called "output":
try {
JSONObject result = output.getJSONObject("result");
int count = result.getInt("count");
String lang = result.getString("lang");
JSONArray tasks = result.getJSONArray("tasks");
JSONObject firstObjectInArray = tasks.getJSONObject(0);
String firstID = firstObjectInArray.getString("ID");
} catch (JSONException e) {
e.printStackTrace();
}
etc.
Then use your constructor for your Object to create a new object:
Object obj = new Object(count, lang, firstID);
etc.
For more information