Tag: rest,null,firebase,restful-url
I am trying to create a restful service using firebase as backend. I have created a sample app and when I hit this url [ https://poctest1.firebaseio.com/rest.json ], I am getting the following response.
[
null,
{
"value": "test1"
},
{
"value": "test 2"
}
]
Why am I getting a null on top, I haven't inserted any.
Help me to figure this out. Thanks
What you're seeing is how Firebase's SDKs deserialize array-like structures. Firebase's documentation on arrays explains it:
when data is read using
val()or via the REST api, if the data looks like an array, Firebase will render it as an array. In particular, if all of the keys are integers, and more than half of the keys between 0 and the maximum key in the object have non-empty values, then Firebase will render it as an array.
Since your array doesn't have an element at index 0, Firebase injects a null for that.
In general when using Firebase you should try to not use arrays, for the reasons mentioned in the documentation I linked above. If you find your must use an array, make sure that you always update the entire array in Firebase. So don't try to manipulate specific items in the array.
Create an object. Loop over the array Get the name of each member of the array Copy each member into the object using a property name that is the same as the name you just got Then just use the object instead of the array. You might want to...
java,list,concurrency,null,add
Try it this way (Made a small TestCase): private static Employee createEmployee(String string) { Employee employee = new Employee(); employee.setEmail(string); return employee; } public static void main(String[] args) { List<String> newMails = new ArrayList<>(); List<Employee> oldList = new ArrayList<>(); oldList.add(createEmployee("[email protected]")); oldList.add(createEmployee("[email protected]")); oldList.add(createEmployee("[email protected]")); oldList.add(createEmployee("[email protected]"));...
javascript,rest,e-commerce,mailchimp
If you mean from client-side Javascript, this isn't possible because the MailChimp API doesn't support CORS and (in most cases) this is a huge security issue. You'll need to communicate with Javascript back to your own servers and have those machines make the requisite API calls.
json,rest,ember.js,asp.net-web-api,ember-data
I think this should fix your problem: export default DS.RESTSerializer.extend({ primaryKey: 'inventory_id' }); With this parameter Ember Data will map inventory_id to it's id parameter....
If you want the None and '' values to appear last, you can have your key function return a tuple, so the list is sorted by the natural order of that tuple. The tuple has the form (is_none, is_empty, value); this way, the tuple for a None value will be...
ios,objective-c,rest,model-view-controller,afnetworking-2
I dont have anything to say about your MVC(Model–view–controller) correct? I just want to add something that may be useful approach avoiding unwanted crashes.. First is under [[MyAPI sharedInstance] POST:@"auth/" parameters:params success:^(NSURLSessionDataTask *task, id responseObject) { if([responseObject objectForKey:@"id"]) { [[NSUserDefaults standardUserDefaults] setObject:(NSDictionary*) responseObject forKey:USER_KEY]; [[NSUserDefaults standardUserDefaults] synchronize]; result = [responseObject...
doubleValue can not be nil. A double value of NSString is a simple type (double) and can not have nil as value, so the compiler can not compare them. You can check if your NSString is nil or if the doubleValue is 0.
java,json,spring,rest,spring-mvc
A String as JSON? Proper JSON needs a key and a value { key: value } So either return text/plain (as in Return only string message from Spring MVC 3 Controller) OR wrap your String is some object public class StringResponse { private String response; public StringResponse(String s) { this.response...
json,angularjs,web-services,rest
$http.get is asynchronous. When cache.get or return result are executed, HTTP request has not completed yet. How are you going to use that data? Display in UI? E.g. try the following: // Some View <div>{{myData}}</div> // Controller app.controller('MyController', function ($scope) { $http.get('yoururl').success(function (data) { $scope.myData = data; }); }); You...
ruby-on-rails,ruby,rest,activerecord,one-to-many
Take a look at merit gem. Even if you want to develop your own badge system from scratch this gem contains plenty of nice solutions you can use. https://github.com/merit-gem/merit
json,api,rest,api-design,hateoas
DO include absolute entity URIs in your responses (such as /customers/12 or even http://www.example.com/customers/12). DO NOT include just an entity's ID (such as 12) in a response, because that way you're forcing clients to put together resource URIs themselves. In order to do that, they would need to have prior...
ruby-on-rails,rest,routes,authorization
Do you know the gems rolify and CanCanCan? I think they can help you manage authorizations on resources in a single place instead of having to do it in every controller....
javascript,jquery,rest,file-upload,webdav
So I figured it out a while ago. I was thinking the wrong way. It is not the client that will do anything it will be the server. So the client can make a regular http call and just change the "type" string from get or what ever to MKCOL...
Finally I solved it. The problem was that we had two different Client objects and the one that you fetch is the one that you must change and use it to upload with PUT. I hope that this help somebody....
I would've added special routes for current user profile actions, in this case you don't have to check anything. Just load and display the data of current user. For example: /my-profile/edit /my-profile/newsfeed It's not that RESTful but you don't have to put extra checks keeping your code clean. If you...
java,xml,rest,jackson,spring-boot
Try to add a @XmlRootElement(name="myRootTag") JAXB annotation with the tag you use as the root tag to the class MatchRequest. I have had similar issues when using both XML and JSON as transport format in a REST request, but using moxy instead of Jackson. In any case, proper JAXB annotations...
java,spring,rest,spring-boot,spring-data-rest
Hum... This is strange but I found this question and added a controller to call the method and it worked like a charm... Obv this is not a fix, but it is a good workaround... EDIT: The error happens because it is expecting an entity, so all I had to...
Maybe one option would be to send an object, which encapsulates all your values, instead of all string values separately? The object would implement your default values. For example, you could create a class: public class CreateObject { private String type = "constant"; private String value; private String otherValue; public...
No, you can't specify it in the context. What you can do, however, is to bind an operation to a property in a Hydra ApiDocumentation (example 10 in the spec) and reference it via an HTTP Link header.
c#,.net,ajax,web-services,rest
Possibly the mistake in this line var data = '{ "c:":{"Id": "1", "Name": "myname"}'; should be var data = '{ "c":{"Id": "1", "Name": "myname"}'; ...
Basically returning entities directly from endpoints isn't a good idea. You make very tight coupling between DB model and responses. Instead, implement a POJO class that will be equivalent of the HTTP response you sent. This POJO will have all ChildEntity fields and parentId only and will be constructed in...
IllegalAnnotationException: Class has two properties of the same name "list" Look at your two model classes XmlMessageBean and ResponseList. Do you see any difference? The main difference (and the cause for the error), is the @XmlAccessorType(XmlAccessType.FIELD) annotation (or lack there of). JAXB by default will look for the public...
angularjs,rest,ngresource,angularjs-1.3
yes, looks a little bit weird. Instead of GET I will use POST request to reset the password and pass the email param in request body
If you expect any data that is not null to be a String then this.text.getData() != null might work but your code will later on have a class cast problem and the fact that the cast to String is not working shows a deeper problem. If it is OK for...
The JerseyTest needs to be set up to run in a Servlet environment, as mentioned here. Here are the good parts: @Override protected TestContainerFactory getTestContainerFactory() { return new GrizzlyWebTestContainerFactory(); } @Override protected DeploymentContext configureDeployment() { ResourceConfig config = new ResourceConfig(SessionResource.class); return ServletDeploymentContext.forServlet(new ServletContainer(config)) .addListener(AppContextListener.class) .build(); } See the APIs for...
If you want to access an On-Premise service from the Azure service/websites what you need is a Hybrid Connection. For that you will need a BizTalk service to redirect the trafic to your on-prem service. Here are the steps to how to setup a Hybrid connection: https://azure.microsoft.com/en-us/documentation/articles/web-sites-hybrid-connection-get-started/...
Well, Both the actions actually means update, where PUT is full update and PATCH is partial update. In case of PUT you already know the identifier of the resource and the resource already exists, so it is not a create and delete action per se. Infact, you can make do...
angularjs,codeigniter,api,rest,token
You can use an API key, however - as you wrote - it's pure protection and easily accessible value - potential abuser just needs to view the source or investigate the queries. In general REST APIs are secured with tokens. At the beginning of the session (not in traditional meaning...
You need to specify a writer config on your proxy with writeAllFields: true. By default it's false, and the default writer itself is just {type: 'json'}.
The issue is with the dependencies that you have in pom.xml file. In Spring 4.1.* version the pom.xml dependency for Jackson libraries should include these: <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-core</artifactId> <version>2.4.1</version> </dependency> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-databind</artifactId> <version>2.4.1.1</version> </dependency> You...
Try to separate API from your application logic. From API you GET the quote and API from now on shouldn't care what you do with that data. The same with marking quotes as favorites. It's your application's and user db's problem how to mark something. Again, API should care only...
Yes, you can provide a custom bean that implements the RestAuthenticationSuccessHandler. Take a look at the API documentation for the class to see what you need to implement. Then it's as simple as overriding the bean in your application context: // Resources.groovy restAuthenticationSuccessHandler(MyCustomRestAuthenticationSuccessHandler) { renderer = ref('accessTokenJsonRenderer') } It might...
django,rest,django-models,django-rest-framework,imagefield
As noted in the docs, .update() doesn't call the model .save() or fire the post_save/pre_save signals for each matched model. It almost directly translates into a SQL UPDATE statement. https://docs.djangoproject.com/en/1.8/ref/models/querysets/#update Finally, realize that update() does an update at the SQL level and, thus, does not call any save() methods on...
asp.net-mvc,entity-framework,null,edit,httppostedfilebase
Mark Image property as not modified: db.Entry(sach).State = EntityState.Modified; if (image == null) db.Entry(sach).Property(m => m.Image).IsModified = false; db.SaveChanges(); ...
Use the Hash utility to rewrite the results returned before setting the data for the View:- class LeadPostsController extends AppController { public $components = array('RequestHandler'); public function index() { $records = $this->LeadPost->find('all', ['limit' => 20]); $this->set(array( 'leadposts' => Hash::extract($records, '{n}.LeadPost'), '_serialize' => 'leadposts' )); } } Here Hash::extract($records, '{n}.LeadPost') will...
c#,web-services,rest,soap,drupal-services
Finally i figured out what was the issue i was creating new cookie container for both the request request.CookieContainer = new CookieContainer(); thus server was unable to authenticate Error was resolved by using this code CookieContainer cookieJar = new CookieContainer(); private void CreateObject() { try { string abc = "";...
python,django,rest,file-upload,request
I tried to fix this but in the end it was quicker and easier to switch to the Django-REST framework. The docs are so much better for Djano-REST that it was trivial to set it up and build tests. There seem to be no time savings to be had with...
@Path("hello") public static class HelloResource { @POST @Produces(MediaType.APPLICATION_JSON) @Consumes(MediaType.APPLICATION_JSON) public String doPost(Map<String, String> data) { return "Hello " + data.get("name") + "!"; } } @Override protected Application configure() { return new ResourceConfig(HelloResource.class); } @Test public void testPost() { Map<String, String> data = new HashMap<String, String>(); data.put("name", "popovitsj"); final String hello...
ios,swift,rest,google-app-engine,google-cloud-endpoints
Yes, it's totally possible to access endpoints via HTTP requests. The client libraries just help you to generate those requests without having to know the exact URLs. The biggest part where the client libraries help you is for authentication, but if you authenticate with Google and get an access token...
User should always specify what content it's expecting with Accept header. It's you job to return the error that was thrown/caught on the server side in the format that was specified in Accept header. In spring as far as I know it could be achieved with a special mapper. Below...
If you are trying to enrich the data from one source and combine that with information from another source, I think this is a decent solution. I think it is better to have one single point to talk to (your REST service), than to have two in your application and...
javascript,rest,dom,xmlhttprequest,cors
The browser will send a preflight request if: You add custom headers to your request You use a method other than GET, HEAD or POST You use POST with an unusual Content-Type. More details here: HTTP access control (CORS), Preflighted requests...
django,api,rest,django-rest-framework,serializer
By default DRF will look at an attribute on the User model named after the serializer's field (member here). However the related name is profile. This can be worked around by passing the source="profile" to your MemberProfileSerializer....
This looks like the problem : HashMap<String, Integer> valuesOfAngleUnits = new HashMap<String, Integer>(); public void setValuesOfAngleUnits(HashMap<String, Integer> valuesOfAngleUnits) { valuesOfAngleUnits.put("Arc minute", 0); valuesOfAngleUnits.put("Arc second", 1); valuesOfAngleUnits.put("Degree", 2); valuesOfAngleUnits.put("Gon", 3); valuesOfAngleUnits.put("Grad", 4); valuesOfAngleUnits.put("Mil (Nato)", 5); valuesOfAngleUnits.put("Mil (Soviet Union)", 6); valuesOfAngleUnits.put("Octant", 7);...
Here is the working fiddle: https://jsfiddle.net/64djszjf/14/ If you take a look at the source js file: https://aui-cdn.atlassian.com/aui-adg/5.8.13/js/aui-experimental.js, there are few lines that sets unselectable class: populateResults: function(container, results, query) { var populate, id=this.opts.id; populate=function(results, container, depth) { var i, l, result, selectable, disabled, compound, node, label, innerContainer, formatted; results =...
php,rest,authentication,middleware,slim
You cannot use halt in middleware: http://stackoverflow.com/a/10201595/2970321 Halt should only be invoked within the context of a route callback. Instead, you could manually generate a 400 response using PHP's header along with exit: header("HTTP/1.1 400 Access denied"); exit; Alternatively, you could define a new type of Exception: class AuthException extends...
The answer is simple: Don't use the UI as the definitive state for your users. Stack Overflow is actually a great example of this. When I voted up your question, the UI only updated after the REST call to the backend completed successfully with no errors. So you should be...
javascript,ajax,rest,sharepoint,office365
To me it just seems a bit light, visit this link https://msdn.microsoft.com/en-us/library/office/dn769086.aspx on technet, and compare your upload function to this: // Add the file to the file collection in the Shared Documents folder. function addFileToFolder(arrayBuffer) { // Get the file name from the file input control on the page....
rest,laravel,polymorphism,eloquent
You might be almost there. Your getAvatarAttribute() is way too complicated, indeed. You could try to do something like: /** we hide the relation from the json */ protected $hidden = ['avatar']; /** we append the url of the avatar to the json */ protected $appends = ['avatar_url']; /** *...
spring,web-services,rest,spring-mvc,web
yes that is possible to combine with web-app for example your controller package into your restful controller also work that is possible to crud operation via restful web service....