How to consume json parameter in java restful service Producing and consuming JSON or XML in Java REST Services with Jersey and Jackson February 17, 2015 Nabi Zamani This Tutorial will explain how to produce and consume JSON or XML in Java REST Services with Jersey and Jackson. Jackson is one of the best JSON Providers/parsers I have come over the so far and it's very fast. Since Jersey 2.x MOXy is the new default JSON-Binding Provider in Jersey (and therefore also in GlassFish 4). However, I have experienced that Jackson is (slightly) faster than MOXy and it is a little easier to configure. You can compile the Maven project and run it on any Servlet Container which supports Servlet API 3.1, i.e. If you are interested in using Jersey with MOXy then check my other tutorial. Table of contents: 1. /pom.xml 2. /src/main/webapp/WEB-INF/web.xml <? 3. We will use two very simple POJOs. /src/main/java/com/nabisoft/tutorials/jerseyjackson/model/Message.java /src/main/java/com/nabisoft/tutorials/jerseyjackson/model/Person.java 4. Our two REST Services are very simple as well. 5. Now we make sure to use Jackson. 6. 7. 8.
Apache CXF: JAX-RS Restful web service using JAXB + JSON example - BenchResources.Net In the previous article, we learnt and implemented an example on how to use JAX-RS Restful web service to send & receive XML data as request/response. Here, we will re-use and modify the same example to send & receive JSON data as web service request/response JAX-RS specification supports the conversion of Java objects to JSON & vice-versa using Jackson library Still we need Java objects to send/receive data in JSON format so start designing your XML Schema Definition (XSD), as we can use JAXB Maven plugin to generate Java classes. NOTE: an extra dependency “Jackson – high performance JSON parser” has been added to pom.xml to support exchange of JSON data with JAX-RS Restful web service Annotation Used Technology Used Java 1.7Eclipse Luna IDESpring-4.0.0-RELEASEApache-CXF-3.0.0Apache Maven 3.2.1Apache Tomcat 7.0.54 Mavenize or download required jars Add Apache-CXF-3.0.0 and Spring-4.0.0-RELEASE dependencies to pom.xml JAXB – Generating java source files from XSD Configure JAXB Maven plugin 1.
REST Security with JWT, Spring Security and Java | Toptal Security Security is the enemy of convenience, and vice versa. This statement is true for any system, virtual or real, from the physical house entrance to web banking platforms. Engineers are constantly trying to find the right balance for the given use case, leaning to one side or the other. Usually, when a new threat appears, we move towards security and away from convenience. Security is the enemy of convenience, and vice versa. Let’s try to see where REST services currently stand regarding security and convenience. Although REST services do not have much specified, an important one is the lack of state. In trying to get rid of client sessions from the server, some other methods have been used occasionally, such as Basic or Digest HTTP authentication. Finally, some implementations used arbitrary tokens to authenticate clients. However, with such arbitrary tokens, there’s little standard involved. Here is how JWT is designed to work: Authorization: Bearer <token> Implementation Conclusion
rest - Restful way for deleting a bunch of items Delete Multiple Objects - Amazon Simple Storage Service Description The Multi-Object Delete operation enables you to delete multiple objects from a bucket using a single HTTP request. If you know the object keys that you want to delete, then this operation provides a suitable alternative to sending individual delete requests (see DELETE Object), reducing per-request overhead. The Multi-Object Delete request contains a list of up to 1000 keys that you want to delete. The Multi-Object Delete operation supports two modes for the response; verbose and quiet. When performing a Multi-Object Delete operation on an MFA Delete enabled bucket, that attempts to delete any versioned objects, you must include an MFA token. Finally, the Content-MD5 header is required for all Multi-Object Delete requests. Requests Syntax POST /? Request Parameters The Multi-Object Delete operation requires a single query string parameter called "delete" to distinguish it from other bucket POST operations. Request Elements Responses Response Elements Examples Sample Request POST /?
API Design Tips And Tricks - Getting, creating, updating or deleting multiple resources in one API call | API Handyman Getting, creating, updating or deleting multiple resources in a single API call is a common need in REST APIs. But how to achieve that in a consistent way accomodating how we work with a single resource and REST principles? This is what we’ll see in this post. Before talking about how to work with multiple resources all at once, let’s see how to handle a single resource with a REST API. Creating a resource The common way of creating a resource is to do a POST request on /resources. If everything is OK and the resource created, the response’s status to this request will be a 201 Created and the response’s body will contain at least the ID (id) or the URL/URI (href) of the created resources. If there’s something wrong, the response’s status will be an error, for example a 400 Bad Request because of some missing data and the response’s body will contain information about the error. Getting a resource Once created a resource can be accessed with a GET /resources/ID request. Updating a resource
REST Resource Identifier (URI) Naming – REST API Tutorial In REST, primary data representation is called Resource. Having a strong and consistent REST resource naming strategy – will definitely prove one of the best design decisions in the long term. The key abstraction of information in REST is a resource. Any information that can be named can be a resource: a document or image, a temporal service (e.g. A resource can be a singleton or a collection. REST APIs use Uniform Resource Identifiers (URIs) to address resources. The constraint of uniform interface is partially addressed by the combination of URIs and HTTP verbs and using them in line with the standards and conventions. Below are a few tips to get you going when creating the resource URIs for your new API. Use nouns to represent resources RESTful URI should refer to a resource that is a thing (noun) instead of referring to an action (verb) because nouns have properties which verbs do not have – similar to resources have attributes. Users of the systemUser AccountsNetwork Devices etc.
RESTful Resource Naming To insert (create) a new customer in the system, we might use: POST To read a customer with Customer ID# 33245: GET The same URI would be used for PUT and DELETE, to update and delete, respectively. Here are proposed URIs for products: POST for creating a new product. GET|PUT|DELETE for reading, updating, deleting product 66432, respectively. Now, here is where it gets fun... Because we want to create an order for a customer (note the relationship), this URI perhaps is not as intuitive as it could be. Now what would the following return? Now, to continue the hierarchical concept, what about the following URI? Along those lines, because there may be multiple URIs for a given resource, we might also offer a GET URI that supports retrieving an order by number without having to know the customer number.
How to convert Java object to / from JSON (Jackson) – Mkyong.com In this tutorial, we show you how to use Jackson 1.x data binding to convert Java object to / from JSON. Note Jackson 1.x is a maintenance project, please use Jackson 2.x instead. 1. Quick Reference 1.1 Convert Java object to JSON, writeValue(...) ObjectMapper mapper = new ObjectMapper(); User user = new User(); mapper.writeValue(new File("c:\\user.json"), user); String jsonInString = mapper.writeValueAsString(user); 1.2 Convert JSON to Java object, readValue(...) P.S All examples are tested with Jackson 1.9.13 2. For Jackson 1.x, it contains 6 separate jars for different purpose, in most cases, you just need jackson-mapper-asl. pom.xml <dependency><groupId>org.codehaus.jackson</groupId><artifactId>jackson-mapper-asl</artifactId><version>1.9.13</version></dependency> 3. An User object for testing. User.java package com.mkyong.json; import java.util.List; public class User { private String name; private int age; private List<String> messages; } 4. Convert an user object into a JSON formatted string.
OpenAPI Specification - Wikipedia History[edit] On 1 January 2016, the Swagger specification was renamed the OpenAPI Specification (OAS), and was moved to a new repository in GitHub. In September 2016, the API World conference presented an API Infrastructure award to SmartBear for its ongoing work on Swagger.[8] In July 2017, the OpenAPI Initiative released version 3.0.0 of its specification.[9] MuleSoft, the main contributor to the alternative RESTful API Modeling Language (RAML), joined the OAS and open sourced their API Modeling Framework tool, which can generate OAS documents from RAML input.[10] Usage[edit] Applications implemented based on OpenAPI interface files can automatically generate documentation of methods, parameters and models. Features[edit] The OpenAPI Specification is language-agnostic. With OpenAPI's declarative resource specification, clients can understand and consume services without knowledge of server implementation or access to the server code.[11] Tools that work with OpenAPI[edit] See also[edit]
Testing your API with Postman Published Feb 03, 2017Last updated Feb 24, 2017 I'm sure you already know the famous tool call Postman. This is a super useful tool for test your API and looks at the response you get from your server. But I see a lot of people just using it as a manual tester. This is not wrong but you can get much better productivity with if you use some of Postman features. Create your first Simple Test First thing this is a simple controller in your app where you can fetch a unique post with is ID as params. /posts/controller.js /posts/routes.js import { Router } from 'express'; import * as PostController from '. Now time to open Postman. a little folder with a plus sign. Give a little name for your collection. Add the route and the GET method in the main area. Now when I click send I receive this. Perfect the route is working and the controller + model do their job. Write your first Postman test If you click on Test right below the URL container you gonna see this . Add this line and now click send.