Using the Spring WebClient I am calling a Rest API that gives me a response as a JSON, following is a structure of the response -
{
"vehicles":[
{ "name":"veh1", "type":"car", "age": 5 },
{ "name":"veh2", "type":"speedboat", "age":12},
.....
]
"metadata": {
"token":"abcd",
"days":120
}
}
I am a newbie to reactive programming, I have written the following code, which works fine ..
Mono<VehicleResponse> = webclient.get()
.uri("/legacy/vehicles")
.accept(MediaType.APPLICATION_JSON)
.retrieve()
.onStatus(HttpStatus::is4xxClientError, clientResponse -> Mono.empty())
.onStatus(HttpStatus::is5xxServerError, clientResponse -> Mono.empty())
.bodyToMono(VehicleResponse.class);
But, actually what I am interested in is, only the vehicles array (don't want the metadata information.) Is it possible to obtain / read only the vehicles (array) as a Flux of Vehicle ?
Related
I am trying to get data using GDC portal api. As it is shown in GDC API, to send an HTTP GET request, we need to have a format similar to:
https://api.gdc.cancer.gov/files?filters=%7B%22op%22%3A%22and%22%2C%22content%22%3A%5B%7B%22op%22%3A%22in%22%2C%22content%22%3A%7B%22field%22%3A%22cases.submitter_id%22%2C%22value%22%3A%5B%22TCGA-CK-4948%22%2C%22TCGA-D1-A17N%22%2C%22TCGA-4V-A9QX%22%2C%22TCGA-4V-A9QM%22%5D%7D%7D%2C%7B%22op%22%3A%22%3D%22%2C%22content%22%3A%7B%22field%22%3A%22files.data_type%22%2C%22value%22%3A%22Gene%20Expression%20Quantification%22%7D%7D%5D%7D&format=tsv&fields=file_id,file_name,cases.submitter_id,cases.case_id,data_category,data_type,cases.samples.tumor_descriptor,cases.samples.tissue_type,cases.samples.sample_type,cases.samples.submitter_id,cases.samples.sample_id,analysis.workflow_type,cases.project.project_id,cases.samples.portions.analytes.aliquots.aliquot_id,cases.samples.portions.analytes.aliquots.submitter_id&size=1000
Which is a format from json payload as:
{
"filters":{
"op":"and",
"content":[
{
"op":"in",
"content":{
"field":"cases.submitter_id",
"value":[
"TCGA-CK-4948",
"TCGA-D1-A17N",
"TCGA-4V-A9QX",
"TCGA-4V-A9QM"
]
}
},
{
"op":"=",
"content":{
"field":"files.data_type",
"value":"Gene Expression Quantification"
}
}
]
},
"format":"tsv",
"fields":"file_id,file_name,cases.submitter_id,cases.case_id,data_category,data_type,cases.samples.tumor_descriptor,cases.samples.tissue_type,cases.samples.sample_type,cases.samples.submitter_id,cases.samples.sample_id,analysis.workflow_type,cases.project.project_id,cases.samples.portions.analytes.aliquots.aliquot_id,cases.samples.portions.analytes.aliquots.submitter_id",
"size":"1000"
}
I wanna add more fields to the payload json and get the equivalent http query string format. I have tried some online convertors, like: JSON-to-String Convertor. Copying the above JSON gives me the below result:
"{\"filters\":{\"op\":\"and\",\"content\":[{\"op\":\"in\",\"content\":{\"field\":\"cases.submitter_id\",\"value\":[\"TCGA-CK-4948\",\"TCGA-D1-A17N\",\"TCGA-4V-A9QX\",\"TCGA-4V-A9QM\"]}},{\"op\":\"=\",\"content\":{\"field\":\"files.data_type\",\"value\":\"Gene Expression Quantification\"}}]},\"format\":\"tsv\",\"fields\":\"file_id,file_name,cases.submitter_id,cases.case_id,data_category,data_type,cases.samples.tumor_descriptor,cases.samples.tissue_type,cases.samples.sample_type,cases.samples.submitter_id,cases.samples.sample_id,analysis.workflow_type,cases.project.project_id,cases.samples.portions.analytes.aliquots.aliquot_id,cases.samples.portions.analytes.aliquots.submitter_id\",\"size\":\"1000\"}"
So, I tried to get data using the generated string by adding
https://api.gdc.cancer.gov/files?
to the beginning of that. But, running this, gives me a different output. So, how can I convert the JSON to exactly what is given in GDC website? Sorry, I am very new to API and their usages.
I'm using Volley library to communicate with my API. I'm pretty new to Android and Kotlin and I'm really confused about extracting keys from the following JSON data
{
"message": {
"_id": "60bc7fa7abeedb25643fa692",
"hash": "3a54b415461a63abac1fc6dfa0e140584047bd15358e33a177f9505ed2faa4d4",
"blockchain": "ethereum",
"amount": 5000,
"amount_usd": 13352971,
"from": "d3d69228cb2292f933572399593617f574c70eb1",
"to": "fe9996da73d6bf5252f15024811954ae37ab68be",
"__v": 0
}
}
The volley library returns all of this JSON data in a variable called response and I'm using response.getString("message") to extract the message key but, I don't understand how to extract the internal data such as hash, blockchain, amount, etc.
I'm using the following code to get the JSON data from my backend.
val jsonRequest = JsonObjectRequest(
Request.Method.GET, url, null,
{ response ->
tweet_text.setText(response.getString("message"))
Log.d("resp", response.toString())
},
{
Log.d("err", it.localizedMessage)
})
Any help would be appreciated, Thanks!
I found it, I just used the getJSONObject() method to make it work
val jsonRequest = JsonObjectRequest(
Request.Method.GET, url, null,
{ response ->
val txn = response.getJSONObject("message")
//txn object can be used to extract the internal data
},
{
Log.d("err", it.localizedMessage)
})
I'm trying to authenticate RADIUS Requests against a RESTful API (provided by Customer) using rlm_rest.
The problem I am facing is that
response JSON format (of REST API provided by Customer), is different from rlm_rest default format (indicated in etc/raddb/mods-enabled/rest).
My Virtual Server configuration as below:
Default
authorize {
...
...
rest
if (ok) {
update control {
Auth-Type := rest
}
}
}
mods-enabled/rest
authorize {
uri = "https://3rd-party-API/auth"
method = 'post'
body = 'json'
chunk = 0
tls = ${..tls}
data = '{
"code": 1,
"identifier": %I,
"avps": {
"User-Name": ["%{User-Name}"],
"NAS-IP-Address": ["%{NAS-IP-Address}"],
"Called-Station-Id": ["%{Called-Station-Id}"],
"Calling-Station-Id": ["%{Calling-Station-Id}"],
"NAS-Identifier": ["%{NAS-Identifier}"]
}
}'
}
Result
/sbin/radiusd -Xxx
HTTP response code
200
JSON Body
{
"code": "2",
"identifier": "91",
"avps": {
"Customer-Attributes": "Hello"
...
...
"Acct-Interim-Interval": "300"
}
}
The JSON structure is different from the example, and xlat parse
"code"
"identifier"
"avps"
And, of course, xlat finds no attributes match with the dictionary, while it cannot find "avps" and won't dig deeper.
So I was wondering is there anyway to either
Define the response JSON structure for xlat to parsing
Insert a "is_json" or "do_xlat" flag into the JSON ("avps"), and hope xlat will then dig deeper
Save the JSON and parse with exec/rlm_exec (using JQ or any other bash/JSON tools)
Please advise if there is any workaround. Thanks!
In FreeRADIUS version 4, there's a rlm_json module, which implements a custom node query language based on xpath (jpath), it is extremely limited and only supports some very basic queries (feel free to enhance it via PR :) ).
Below is an example I pulled out of my library of customer configurations. You can see here it's pulling out two keys (externalID and macAddress) from the root level of the JSON doc and assigning them to a couple of custom attributes (Subscriber-ID and Provisioned-MAC).
map json "%{rest_api:https://${modules.rest[rest_api].server}/admin/api/${modules.rest[rest_api].api_key}/external/getDeviceBySerialNumber?certificateSerialNumber=%{lpad:&TLS-Client-Cert-Serial 40 0}}" {
&Subscriber-ID := '$.externalId'
&Provisioned-MAC := '$.macAddress'
}
The xlat expansion can also be modified to send HTTP body data. Just put a space after the URL and pass your custom JSON blob.
I have a REST webservice which allows me to upload user details in JSON format via a POST request. It looks like I can do this using
post.addArgument("Name",entry.get("Name").toString());
post.addArgument("JobRole",entry.get("JobRole").toString());
"entry" is an ArrayList < MapString, Object>
As you can see in the below JSON I also have the option of sending multiple entries per user (in this case address details) as in this JSON example:
{
"Name":"Fred Flintstone",
"JobRole":"Quarry worker",
"Address":[
{
"Address1" :"Boulder House",
"Address2" :"Rock Way",
"Address3" :"Rock City"
}
]
}
I have tried using
post.addArgumentArray("Address",entry.get("Address1").toString,entry.get("Address2"))
to combine the entries for the user under Address but I get "400: Bad Request" returned. So how do I add multiple entries like this to my request?
Regards
Those are POST style arguments and they are added as regular HTTP arguments not as JSON (it's like submitting a form in HTML).
What you are looking for is something like:
ConnectionRequest cr = new ConnectionRequest(url, true) {
protected void buildRequestBody(OutputStream os) throws IOException {
// snipped this but you should get the rest...
os.write("{\"Name\":\"Fred Flintstone\",\"JobRole\":\"Quarry worker\", ...");
}
};
Alternatively you can use the new terse REST API:
Map<String, Object> jsonData = Rest.post(myUrl).body(bodyValueAsString).getAsJsonMap();
I am working on an iOS app using the MonoTouch framework. I am using Visual Studio 2010 Professional SP1 with the Xamarin.iOS (v1.3.250) extension. I have been able to open a valid FacebookConnect.FBSession by using the FacebookConnect.FBLoginView with no issues but when I try to make a Graph API request using FacebookConnect.FBRequest I recieve a non-standard JSON style string. When I run following request through the Graph API Explorer:
me?fields=albums.fields(id,name,cover_photo)
I receive the following response:
{
"id": "111111111111111111",
"albums": {
"data": [
{
"id": "111111111111111111",
"name": "Some Album (#1)",
"cover_photo": "111111111111111111",
"created_time": "000-00-00T00:00:00+0000"
},
{
"id": "111111111111111111",
"name": "Some Album (#2)",
"cover_photo": "111111111111111111",
"created_time": "000-00-00T00:00:00+0000"
},
],
"paging": {
"cursors": {
"after": "xxxxxxxx=",
"before": "xxxxxxxx="
}
}
}
}
Now all of this is just fine and is what I expect to receive but when I make the same Graph API request from my app like this:
public static void GetPhotoAlbums(string _userID)
{
// _userID = "me"
mFBRequest = new FBRequest(FBSession.ActiveSession, _userID + "?fields=albums.fields(id,name,cover_photo)");
FBRequestConnection fbRequestConnection = new FBRequestConnection();
fbRequestConnection.AddRequest(mFBRequest, OnPhotoAlbumsReceived);
fbRequestConnection.Start();
}
static void OnPhotoAlbumsReceived(FBRequestConnection _connection, NSObject _result, NSError _error)
{
if (_error == null)
{
Console.WriteLine("FacebookManager.OnPhotoAlbumsReceived() - JSON: " + _result.Description);
object o = JsonConvert.DeserializeObject(_result.Description);
// ...
}
}
I receive this JSON 'like' response:
{
albums = {
data = (
{
"cover_photo" = 111111111111111111;
"created_time" = "000-00-00T00:00:00+0000";
id = 111111111111111111;
name = "Some Album (#1)";
},
{
"cover_photo" = 111111111111111111;
"created_time" = "000-00-00T00:00:00+0000";
id = 111111111111111111;
name = "Some Album (#2)";
},
);
paging = {
cursors = {
after = "xxxxxxxx=";
before = "xxxxxxxx=";
};
};
};
"id": "111111111111111111";
}
I'm not really sure how/why I'm getting a response formatted in a non-standard way but needless to say, I get Newtonsoft.Json.JsonReaderException when attempting to deserialize the data because it does not follow the standard formatting rules (ie, = instead of : to separate key/value pairs, ; instead of , to separate elements of a container, some keys having quotes while others do not, etc...)
I'm pretty new to Facebook and JSON stuff in general and am really at a loss for what is happening to the response string I receive. Any help, feedback, ideas are greatly appreciated. Thanks.
* Solution *
After a bunch of digging around it seems to be that the Graph API response is indeed JSON but it gets converted to an FBGraphObject which holds a NSMutableArray as it the data makes its way through the MonoTouch->.NET bindings so when I pulled _result.Description (equivalent to _result.ToString() it returned me the string representation of that object which happens to look a lot like JSON but is not. After finding all this out (and a lot of runtime experimentation), I was finally able to extract the data into a usable state by doing this:
static void OnPhotoAlbumsReceived(FBRequestConnection _connection, NSObject _result, NSError _error)
{
if (_error == null)
{
NSArray fieldData = (NSArray) _result.ValueForKeyPath(new NSString("albums.data.name"))
string[] names = NSArray.StringArrayFromHandle(fieldData.Handle);
// ...
}
}
Although this works for me, I have a feeling that there is a better or more robust way to get the data I requested, so if any developers out there can offer any additional tips for improving this solution, I would love to hear them.
As stated in Facebook SDK documentation Graph API:
When a request returns a non-JSON response (such as a "true" literal),
that response will be wrapped into a dictionary using this const as
the key. This only applies for very few Graph API prior to v2.1.
So you can check first if result is an NSDictionary, otherwise you can deserialize the JSON data as usual.
Below some obj-c code you can translate into C#/MonoTouch (I don't know the framework, I hope it is helpful).
NSDictionary *dict;
if ([graphResult isKindOfClass:[NSDictionary class]]) {
dict = (NSDictionary *)graphResult;
} else {
NSError *JSONError;
dict = [NSJSONSerialization JSONObjectWithData:graphResult options:NSJSONReadingAllowFragments error:&JSONError];
if (JSONError) {
NSLog(#"Facebook: JSON parse error: %#", JSONError);
// Handle error
}
}