Service Proxy: API Gateway for REST and SOAP Written in Java

Membrane Service Proxy 

Reverse HTTP proxy (framework) written in Java, that can be used

• as an API gateway
• as a security proxy
• for HTTP based integration
• as a WebSockets and STOMP router

Get Started

Download the binary.

Unpack.

Start service-proxy.sh or service-proxy.bat.

Have a look at the main configuration file conf/proxies.xml. Changes to this file are instantly deployed.

Run the samples in the examples folder, follow the REST or SOAP tutorials, see the Documentation or the FAQ.

Samples

REST

Routing requests from localhost:80 to localhost:8080 :

<serviceProxy port="80">
    <target host="localhost" port="8080" />
</serviceProxy>

Routing only requests with path /foo :

<serviceProxy port="80">
    <path>/foo</path>
    <target host="localhost" port="8080" />
</serviceProxy>

SOAP

SOAP proxies configure themselves by analysing WSDL:

<soapProxy wsdl="http://thomas-bayer.com/axis2/services/BLZService?wsdl">
</soapProxy>

Add features like logging or XML Schema validation against a WSDL document:

<soapProxy wsdl="http://thomas-bayer.com/axis2/services/BLZService?wsdl">
    <validator />
    <log />
</soapProxy>

Limit the number of requests in a given time frame:

<serviceProxy port="80">
    <rateLimiter requestLimit="3" requestLimitDuration="PT30S"/>
    <target host="localhost" port="8080" />
</serviceProxy>

Rewrite URLs:

<serviceProxy port="2000">
    <rewriter>
        <map from="^/goodlookingpath/(.*)" to="/backendpath/$1" />
    </rewriter>
    <target host="my.backend.server" port="80" />
</serviceProxy>

Monitor HTTP traffic:

<serviceProxy port="2000">
    <log/>
    <target host="localhost" port="8080" />
</serviceProxy>

Monitoring and manipulation

Dynamically manipulate and monitor messages with Groovy and JavaScript (Nashorn):

<serviceProxy port="2000">
      <groovy>
        exc.request.header.add("X-Groovy", "Hello from Groovy")
        CONTINUE
      </groovy>
    <target host="localhost" port="8080" />
</serviceProxy>

<serviceProxy port="2000">
      <javascript>
        exc.getRequest().getHeader().add("X-Javascript", "Hello from JavaScript");
           CONTINUE;
      </javascript>
    <target host="localhost" port="8080" />
</serviceProxy>

Route and intercept WebSocket traffic:

<serviceProxy port="2000">
        <webSocket url="http://my.websocket.server:1234">
            <wsLog/>
        </webSocket>
    <target port="8080" host="localhost"/>
</serviceProxy>

(Find an example on membrane-soa.org)

Security

Use the widely adopted OAuth2/OpenID Framework to secure endpoints:

<serviceProxy name="Resource Service" port="2001">
    <oauth2Resource>
        <membrane src="https://accounts.google.com" clientId="INSERT_CLIENT_ID" clientSecret="INSERT_CLIENT_SECRET" scope="email profile" subject="sub"/>
    </oauth2Resource>    
    <groovy>
        def oauth2 = exc.properties.oauth2
        exc.request.header.setValue('X-EMAIL',oauth2.userinfo.email)
        CONTINUE
    </groovy>
    <target host="thomas-bayer.com" port="80"/>
</serviceProxy>

(Find an example on membrane-soa.org)

Operate your own OAuth2/OpenID AuthorizationServer/Identity Provider:

<serviceProxy name="Authorization Server" port="2000">
    <oauth2authserver location="logindialog" issuer="http://localhost:2000" consentFile="consentFile.json">
        <staticUserDataProvider>
            <user username="john" password="password" email="john@predic8.de" />
        </staticUserDataProvider>
            <staticClientList>
        <client clientId="abc" clientSecret="def" callbackUrl="http://localhost:2001/oauth2callback" />
        </staticClientList>
        <bearerToken/>
        <claims value="aud email iss sub username">
            <scope id="username" claims="username"/>
            <scope id="profile" claims="username email password"/>
        </claims>
    </oauth2authserver>
</serviceProxy>

(Find an example on membrane-soa.org)

Secure an endpoint with basic authentication:

<serviceProxy port="2000">
    <basicAuthentication>
        <user name="bob" password="secret" />
    </basicAuthentication>
    <target host="localhost" port="8080" />
</serviceProxy>

Route to SSL/TLS secured endpoints:

<serviceProxy port="8080">
    <target host="www.predic8.de" port="443">
        <ssl/>
    </target>
</serviceProxy>

Secure endpoints with SSL/TLS:

<serviceProxy port="443">
    <ssl>
        <keystore location="membrane.jks" password="secret" keyPassword="secret" />
        <truststore location="membrane.jks" password="secret" />
    </ssl>
    <target host="localhost" port="8080"  />
</serviceProxy>

Limit the number of incoming requests:

<serviceProxy port="2000">
    <rateLimiter requestLimit="3" requestLimitDuration="PT30S"/>
    <target host="localhost" port="8080" />
</serviceProxy>

Clustering

Distribute your workload to multiple nodes:

<serviceProxy name="Balancer" port="8080">
    <balancer name="balancer">
        <clusters>
            <cluster name="Default">
                <node host="my.backend.service-1" port="4000"/>
                <node host="my.backend.service-2" port="4000"/>
                <node host="my.backend.service-3" port="4000"/>
            </cluster>
        </clusters>
    </balancer>
</serviceProxy>

See configuration reference for much more.

Download Details:
Author: membrane
Source Code: https://github.com/membrane/service-proxy
License: Apache-2.0 license

#java 

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Buddha Community

What is REST API? An Overview | Liquid Web

What is REST?

The REST acronym is defined as a “REpresentational State Transfer” and is designed to take advantage of existing HTTP protocols when used for Web APIs. It is very flexible in that it is not tied to resources or methods and has the ability to handle different calls and data formats. Because REST API is not constrained to an XML format like SOAP, it can return multiple other formats depending on what is needed. If a service adheres to this style, it is considered a “RESTful” application. REST allows components to access and manage functions within another application.

REST was initially defined in a dissertation by Roy Fielding’s twenty years ago. He proposed these standards as an alternative to SOAP (The Simple Object Access Protocol is a simple standard for accessing objects and exchanging structured messages within a distributed computing environment). REST (or RESTful) defines the general rules used to regulate the interactions between web apps utilizing the HTTP protocol for CRUD (create, retrieve, update, delete) operations.

What is an API?

An API (or Application Programming Interface) provides a method of interaction between two systems.

What is a RESTful API?

A RESTful API (or application program interface) uses HTTP requests to GET, PUT, POST, and DELETE data following the REST standards. This allows two pieces of software to communicate with each other. In essence, REST API is a set of remote calls using standard methods to return data in a specific format.

The systems that interact in this manner can be very different. Each app may use a unique programming language, operating system, database, etc. So, how do we create a system that can easily communicate and understand other apps?? This is where the Rest API is used as an interaction system.

When using a RESTful API, we should determine in advance what resources we want to expose to the outside world. Typically, the RESTful API service is implemented, keeping the following ideas in mind:

• Format: There should be no restrictions on the data exchange format
• Implementation: REST is based entirely on HTTP
• Service Definition: Because REST is very flexible, API can be modified to ensure the application understands the request/response format.
• The RESTful API focuses on resources and how efficiently you perform operations with it using HTTP.

The features of the REST API design style state:

• Each entity must have a unique identifier.
• Standard methods should be used to read and modify data.
• It should provide support for different types of resources.
• The interactions should be stateless.

For REST to fit this model, we must adhere to the following rules:

• Client-Server Architecture: The interface is separate from the server-side data repository. This affords flexibility and the development of components independently of each other.
• Detachment: The client connections are not stored on the server between requests.
• Cacheability: It must be explicitly stated whether the client can store responses.
• Multi-level: The API should work whether it interacts directly with a server or through an additional layer, like a load balancer.

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An API-First Approach For Designing Restful APIs | Hacker Noon

I’ve been working with Restful APIs for some time now and one thing that I love to do is to talk about APIs.

So, today I will show you how to build an API using the API-First approach and Design First with OpenAPI Specification.

First thing first, if you don’t know what’s an API-First approach means, it would be nice you stop reading this and check the blog post that I wrote to the Farfetchs blog where I explain everything that you need to know to start an API using API-First.

Preparing the ground

Before you get your hands dirty, let’s prepare the ground and understand the use case that will be developed.

Tools

If you desire to reproduce the examples that will be shown here, you will need some of those items below.

• NodeJS
• OpenAPI Specification
• Text Editor (I’ll use VSCode)
• Command Line

Use Case

To keep easy to understand, let’s use the Todo List App, it is a very common concept beyond the software development community.

#api #rest-api #openai #api-first-development #api-design #apis #restful-apis #restful-api

Opencart REST API extensions - V3.x | Rest API Integration, Affiliate

Opencart REST API extensions - V3.x | Rest API Integration : OpenCart APIs is fully integrated with the OpenCart REST API. This is interact with your OpenCart site by sending and receiving data as JSON (JavaScript Object Notation) objects. Using the OpenCart REST API you can register the customers and purchasing the products and it provides data access to the content of OpenCart users like which is publicly accessible via the REST API. This APIs also provide the E-commerce Mobile Apps.

Opencart REST API 
OCRESTAPI Module allows the customer purchasing product from the website it just like E-commerce APIs its also available mobile version APIs.

Opencart Rest APIs List 
Customer Registration GET APIs.
Customer Registration POST APIs.
Customer Login GET APIs.
Customer Login POST APIs.
Checkout Confirm GET APIs.
Checkout Confirm POST APIs.

If you want to know Opencart REST API Any information, you can contact us at -
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Call/WhatsApp/WeChat: +91–9717478599.

Download : https://www.opencart.com/index.php?route=marketplace/extension/info&extension_id=43174&filter_search=ocrest%20api
View Documentation : https://www.letscms.com/documents/api/opencart-rest-api.html
More Information : https://www.letscms.com/blog/Rest-API-Opencart
VEDIO : https://vimeo.com/682154292  

#opencart_api_for_android #Opencart_rest_admin_api #opencart_rest_api #Rest_API_Integration #oc_rest_api #rest_api_ecommerce #rest_api_mobile #rest_api_opencart #rest_api_github #rest_api_documentation #opencart_rest_admin_api #rest_api_for_opencart_mobile_app #opencart_shopping_cart_rest_api #opencart_json_api

Unilevel MLM Wordpress Rest API FrontEnd | UMW Rest API Woocommerce

Unilevel MLM Wordpress Rest API FrontEnd | UMW Rest API Woocommerce Price USA, Philippines : Our API’s handle the Unilevel MLM woo-commerce end user all functionalities like customer login/register. You can request any type of information which is listed below, our API will provide you managed results for your all frontend needs, which will be useful for your applications like Mobile App etc.
Business to Customer REST API for Unilevel MLM Woo-Commerce will empower your Woo-commerce site with the most powerful Unilevel MLM Woo-Commerce REST API, you will be able to get and send data to your marketplace from other mobile apps or websites using HTTP Rest API request.
Our plugin is used JWT authentication for the authorization process.

REST API Unilevel MLM Woo-commerce plugin contains following APIs.
User Login Rest API
User Register Rest API
User Join Rest API
Get User info Rest API
Get Affiliate URL Rest API 
Get Downlines list Rest API
Get Bank Details Rest API
Save Bank Details Rest API
Get Genealogy JSON Rest API
Get Total Earning Rest API
Get Current Balance Rest API
Get Payout Details Rest API
Get Payout List Rest API
Get Commissions List Rest API
Withdrawal Request Rest API
Get Withdrawal List Rest API

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How to Validate an Email Address in Java

Email is one of the most universal tools for sharing and receiving information across the globe, with users able to connect with others online with almost no compatibility or access issues. Using this tool, information can be instantly and securely sent to partners on the other side of the world, and personal information can be verified without divulging sensitive data about a user.

Along with this widespread use, however, comes key security measures that must take place in order to ensure the safety of your organization and data. This is particularly the case when receiving email information from previously unknown sources. These risks can include phishing attempts, malware, and other threats that can cause a negative impact to your business. Furthermore, when receiving an email address via account forms and user sign up information, you need to check that the information you are given is not only correct and real, but also that it does not lead to any malicious sources that could harm your organizational security.

The following APIs will allow you to instantly verify and validate an input email address without sending any kind of notification to the email user. This will help protect your organization in the event of any threats. The goal of this tutorial is to provide you with the tools to protect your organization’s information while providing a way to verify new accounts and user information.

This will be done through three separate functions. The first will analyze the validity of an email address’ syntax. The second will check for the address’ servers, and the third performs a full email address validation including returning the results for the previous two functions.

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