I'm trying to check in my integration test if all of values from some specific property has the same type. I was trying to do it along with jsonPath and JsonPathResultMatchers but without success. Finally in I did something like this :
MvcResult result = mockMvc.perform(get("/weather/" + existingCity))
.andExpect(MockMvcResultMatchers.status().isOk())
.andReturn();
String responseContent = result.getResponse().getContentAsString();
TypeRef<List<Object>> typeRef = new TypeRef<List<Object>>() {
};
List<Object> humidities = JsonPath.using(configuration).parse(responseContent).read("$.*.humidity", typeRef);
Assertions.assertThat(humidities.stream().allMatch(humidity -> humidity instanceof Integer)).isTrue();
But I wonder if exist some clearer way to do this, can the same result be achieved with JSONPath ? Or AssertJ has some method to find it without usage stream code
Just answering on the AssertJ part: Stream assertions are provided with some caveats as the Stream under test is converted to a List in order to be able to perform multiple assertions (otherwise you can't as a Stream can only be consumed once).
Javadoc: assertThat(BaseStream)
Example:
assertThat(DoubleStream.of(1, 2, 3)).isNotNull()
.contains(1.0, 2.0, 3.0)
.allMatch(Double::isFinite);
I have happily used https://github.com/lukas-krecan/JsonUnit to check JSON, you can give it a try and see if you like it.
I personnaly would rather validate it against a JSON schema. There are Java validator implementations that could help you
After executing a MongoDB query my result is of type : res = Seq[Document]
To access the BsonString I use : res (0).get("n"))
Which returns :
Some(BsonString{value='value'})
How can I access the value value from the BsonString as a String ?
Accessing the value of Some(BsonString{value='value'}) returns BsonString{value='value'} do I need to convert BsonString{value='value'} to a Scala object using a library (for example Jackson) and then access the value ?
I suppose you are using the mongo scala driver (and not ReactiveMongo).
In that case, the returned BsonString is a java object; here is the scaladoc that points to the javadoc.
And you can access the value via the getValue method.
As you are getting back Option objects, I would recommend to use proper for comprehension to avoid runtime exceptions; something like:
val optionalResult = for {
doc <- res.headOption
element <- doc.get[BsonString]("n")
} yield (element.getValue)
optionalResult will be of type Option[String].
You can then check if you have a value and use it; via map, flatMap, foreach or even if (optionalResult.isDefined).
I'm trying to build a restful API and I'm struggling on how to serialize JSON data to a HTTP query string.
There are a number of mandatory and optional arguments that need to be passed in the request, e.g (represented as a JSON object below):
{
"-columns" : [
"name",
"column"
],
"-where" : {
"-or" : {
"customer_id" : 1,
"services" : "schedule"
}
},
"-limit" : 5,
"return" : "table"
}
I need to support a various number of different clients so I'm looking for a standardized way to convert this json object to a query string. Is there one, and how does it look?
Another alternative is to allow users to just pass along the json object in a message body, but I read that I should avoid it (HTTP GET with request body).
Any thoughts?
Edit for clarification:
Listing how some different languages encodes the given json object above:
jQuery using $.param: -columns[]=name&-columns[]=column&-where[-or][customer_id]=1&-where[-or][services]=schedule&-limit=5&return=column
PHP using http_build_query: -columns[0]=name&-columns[1]=column&-where[-or][customer_id]=1&-where[-or][services]=schedule&-limit=5&return=column
Perl using URI::query_form: -columns=name&-columns=column&-where=HASH(0x59d6eb8)&-limit=5&return=column
Perl using complex_to_query: -columns:0=name&-columns:1=column&-limit=5&-where.-or.customer_id=1&-where.-or.services=schedule&return=column
jQuery and PHP is very similar. Perl using complex_to_query is also pretty similar to them. But none look exactly the same.
URL-encode (https://en.wikipedia.org/wiki/Percent-encoding) your JSON text and put it into a single query string parameter. for example, if you want to pass {"val": 1}:
mysite.com/path?json=%7B%22val%22%3A%201%7D
Note that if your JSON gets too long then you will run into a URL length limitation problem. In which case I would use POST with a body (yes, I know, sending a POST when you want to fetch something is not "pure" and does not fit well into the REST paradigm, but neither is your domain specific JSON-based query language).
There is no single standard for JSON to query string serialization, so I made a comparison of some JSON serializers and the results are as follows:
JSON: {"_id":"5973782bdb9a930533b05cb2","isActive":true,"balance":"$1,446.35","age":32,"name":"Logan Keller","email":"logankeller#artiq.com","phone":"+1 (952) 533-2258","friends":[{"id":0,"name":"Colon Salazar"},{"id":1,"name":"French Mcneil"},{"id":2,"name":"Carol Martin"}],"favoriteFruit":"banana"}
Rison: (_id:'5973782bdb9a930533b05cb2',age:32,balance:'$1,446.35',email:'logankeller#artiq.com',favoriteFruit:banana,friends:!((id:0,name:'Colon Salazar'),(id:1,name:'French Mcneil'),(id:2,name:'Carol Martin')),isActive:!t,name:'Logan Keller',phone:'+1 (952) 533-2258')
O-Rison: _id:'5973782bdb9a930533b05cb2',age:32,balance:'$1,446.35',email:'logankeller#artiq.com',favoriteFruit:banana,friends:!((id:0,name:'Colon Salazar'),(id:1,name:'French Mcneil'),(id:2,name:'Carol Martin')),isActive:!t,name:'Logan Keller',phone:'+1 (952) 533-2258'
JSURL: ~(_id~'5973782bdb9a930533b05cb2~isActive~true~balance~'!1*2c446.35~age~32~name~'Logan*20Keller~email~'logankeller*40artiq.com~phone~'*2b1*20*28952*29*20533-2258~friends~(~(id~0~name~'Colon*20Salazar)~(id~1~name~'French*20Mcneil)~(id~2~name~'Carol*20Martin))~favoriteFruit~'banana)
QS: _id=5973782bdb9a930533b05cb2&isActive=true&balance=$1,446.35&age=32&name=Logan Keller&email=logankeller#artiq.com&phone=+1 (952) 533-2258&friends[0][id]=0&friends[0][name]=Colon Salazar&friends[1][id]=1&friends[1][name]=French Mcneil&friends[2][id]=2&friends[2][name]=Carol Martin&favoriteFruit=banana
URLON: $_id=5973782bdb9a930533b05cb2&isActive:true&balance=$1,446.35&age:32&name=Logan%20Keller&email=logankeller#artiq.com&phone=+1%20(952)%20533-2258&friends#$id:0&name=Colon%20Salazar;&$id:1&name=French%20Mcneil;&$id:2&name=Carol%20Martin;;&favoriteFruit=banana
QS-JSON: isActive=true&balance=%241%2C446.35&age=32&name=Logan+Keller&email=logankeller%40artiq.com&phone=%2B1+(952)+533-2258&friends(0).id=0&friends(0).name=Colon+Salazar&friends(1).id=1&friends(1).name=French+Mcneil&friends(2).id=2&friends(2).name=Carol+Martin&favoriteFruit=banana
The shortest among them is URL Object Notation.
How about you try this sending them as follows:
http://example.com/api/wtf?
[-columns][]=name&
[-columns][]=column&
[-where][-or][customer_id]=1&
[-where][-or][services]=schedule&
[-limit]=5&
[return]=table&
I tried with a REST Client
And on the server side (Ruby with Sinatra) I checked the params, it gives me exactly what you want. :-)
Another option might be node-querystring. It also uses a similar scheme to the ones you've so far listed.
It's available in both npm and bower, which is why I have been using it.
Works well for nested objects.
Passing complex objects as query parameters of a url.
In the example below, obj is the JSON object to pass into query parameters.
Injecting JSON object as query parameters:
value = JSON.stringify(obj);
URLSearchParams to convert a string to an object representing search params. toString to retain string type for appending to url:
queryParams = new URLSearchParams(value).toString();
Pass the query parameters using template literals:
url = `https://some-url.com?key=${queryParams}`;
Now url will contain the JSON object as query parameters under key (user-defined name)
Extracing JSON from url:
This is assuming you have access to the url (either as string or URL object)
url_obj = new URL(url); (only if url is NOT a URL object, otherwise ignore this step)
Extract all query parameters in the url:
queryParams = new URLSearchParams(url_obj.search);
Use the key to extract the specific value:
obj = JSON.parse(queryParams.get('key').slice(0, -1));
slice() is used to extract a tailing = in the query params which is not required.
Here obj will be the same object passed in the query params.
I recommend to try these steps in the web console to understand better.
You can test with JSON examples here: https://json.org/example.html
I would like to pass JSON arrays and list of JSON objects to Reasteasy GET method in query string. How can I access them in the service method?
For example on array, if the parameter name is "employeeId", I would like to pass
?employeeId=[1,2,3]
instead of passing
?employeeId=1&employeeId=2&employeeId=3
For list of objects, I would like to pass something like
?parameter=[{val1, val2},{val1, val2},{val1, val2}]
How can I get these correctly in the server side method?
you can use the Path annotation and PathParam annotation to pick up the input values
#Path(/path/EmployeeIdArray)
public void someMethod(#PathParam("EmployeeIdArray")String[] employeeIdArray){
}
using this you can access it as
GET /path/[{val1, val2},{val1, val2},{val1, val2}]
I'm trying to pass Json to my View using ViewData
Controller
ViewData("JsonRegionList") = Json(RegionService.GetActiveRegions())
view
$("input#UserRegion").autocomplete({
source:"<%: ViewData("JsonRegionList").ToString %>",
minLength: 3,
but the problem I'm running into is the output source looks like
$("input#UserRegion").autocomplete({
source:"System.Web.Mvc.JsonResult",
minLength: 3,
which is obviously not right. Am I missing something basic?
The Json() controller method returns a JsonResult, which isn't the same as a JSON string. The JsonResult holds data, but the data is actually written directly to the response when the View Engine calls JsonResult.ExecuteResult(). That's all probably more information than you want there - the point is that calling Json() in a controller won't give you a string of JSON.
If you just want to turn your data into a JSON string, you can use the JavaScriptSerializer, which is what the Json() method uses internally:
JavaScriptSerializer serializer = new JavaScriptSerializer();
ViewData["JsonRegionList"] = serializer.Serialize(jsonRegionList);