Oracle Integration Cloud: Recommend Feature Demo

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Watch the video here.

 

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Provisioning Oracle API Platform Gateway Nodes using Terraform and Ansible on AWS by Kevin King

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When using Oracle Autonomous API Platform, an API gets deployed to a logical gateway.  The logical gateway consists of one or more nodes which are instances of the runtime, installed on physical machines, virtual machines, or cloud infrastructure.  The gateway nodes handle the processing of the API requests, but a load balancer is still required to distribute traffic between the nodes.  When performance becomes an issue, more nodes can be added to increase throughput.  Providing an automated way to manage nodes ensures consistency of configurations and the ability to easily add and remove nodes.

The gateway nodes can be installed on-premise or in the cloud, and are not restricted to the Oracle cloud.  This allows for customers who are already using AWS to host their micro-services, to use Oracle’s API Platform platform to be able to monitor and expose their APIs on a central location.  The API Platform portal, provides a central location deploy, activate, deprecate, and secure APIs while having complete visibility of the usages and KPI monitoring.

In this blog, I’ll describe how I’ve created an automated way to provision, configure, and register new API gateway nodes, running on Amazon EC2 into the API Platform using Terraform and Ansible.

Technologies used (and links for more help): APICS: This the Oracle API Platform Cloud Service. Read the complete article here.

 

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Managing HTTP Headers with Oracle API Platform by Robert Wunderlich

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Imagine you have a service that is secured with Basic Auth or better yet OAuth2 and you would like to leverage the complete capabilities of an API Platform so you choose to create an API and deploy it to a gateway running in front of your service.

When you call your service directly from within your internal network, everything works, providing you include the appropriate Authorization header that your service expects. However, when you call the API endpoint on your gateway, the endpoint you will make available to your consumers, it does not work. You are passing everything as your original call, you’ve just modified the end-point to point to your gateway load balancer address and API end-point. What happened?

Well, most of the headers you pass to the gateway will simply pass through by default, with the exception of Authorization. Here is an example of a real simple API I created.

This API receives a request to the "echo" end-point and simply passes it to httpbin.org so we can see the result. So, as we can see, I am not really including any security policies in my API. I am choosing to leave that to the back-end service in this case. What happens if I call this API passing with an Authorization header. As you can see below, it is not included in the headers.

This is because the gateway is an authorization and policy enforcement engine and in most cases, when we validate the user at the gateway, we do not want to pass that header to the back-end systems. But what if we do want to pass that header? It turns out this is quite simple. We add the header to our Service Request policy. Read the complete article here.

 

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API Platform Cloud Service Training, Samples and Demos by Robert Wunderlich

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This is the place to learn all about API Platform! Here you will find our repository of tutorials that are aimed to help you on your path to be an expert.

What is a tutorial?

A tutorial is a small lesson that walks you through the process of performing a particular task. For example Designing an API

Note: Whenever there is a link, open it in a new tab (right-click->"Open Link in New Tab"). This way you will maintain your place this lab guide without having to re-orient yourself after completing a task from a linked tutorial, etc

Think of a tutorial as the how to perform a task

What is a scenario?

A scenario the story or use-case that provides a path through the tutorials. Think of a scenario as the what and why

Suggested approach

The overall structure of this training can be thought of as

  • Scenario
    • Tutorials
      • Screencasts (coming soon)

As you begin with the scenario, you may visit the linked tutorials for guidance, but we suggest you try to push yourself to use the application with only just enough guidance that you might need. Don’t blindly follow the steps of a tutorial. As a matter of fact, there are some tasks that naturally get repeated, such as deploying an API as you make changes. The first time you deploy, you may need to use the tutorial, but the second and subsequent times, try to do it without the tutorial so you can test yourself and confirm if you are comprehending what this training is teaching you.

We plan to record each tutorial in a short screencast so that if you need to see it being done, or you simply want to validate that you’ve followed the task correctly, you can use these videos. Again, don’t hesitate to push yourself by attempting to complete the task, then use the tutorial to validate your understanding.

Getting Started

  1. Choose the environment you will use
  2. You can visit Environments to learn about getting a free trial of Oracle Cloud.
  3. Visit the scenarios and choose which one you want to use. There is only one right now, so the choice is easy!

Get the free training material here.

 

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When the Cracks Begin to Show On Designing Microservices by Lucas Jellema

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No one has achieved success with microservices just by talking about them. Unfortunately, many organizations spend a lot of time on exactly that, debating how to approach microservices. It is as though there is one perfect approach to designing and working with microservices that needs only be uncovered. In actual fact, there is no such definitive solution; even if there were, it would hold true only until changes in the organization, business objectives, technology frameworks and regulations made adjustments necessary.

It is tempting—just as it was a decade ago with SOA Web Services—to spend a lot of time and energy on identifying microservices. Creating an exhaustive overview of all microservices, defining the exact scope and interface of each, is not feasible and is not a smart investment of time. It would be a lot of work, and that work would never be complete. The definition of microservices is not an end in itself and giving in to this temptation represents a serious risk. Microservices are an instrument for achieving sustained business agility in a changing world of functional and non-functional requirements and evolving technical, political, economic, and legal parameters. Microservices cannot be defined once and for all, and they should not have to be. As architects and developers we are agile and flexible. We embrace change in all aspects of our IT organizations.

Here’s another organizational risk familiar from the SOA era: starting with an exclusive focus on the technology for implementing microservices and on the microservices platform, the underlying platform for eventually running the microservices (that do not even exist yet and for which no requirements are yet known). It is all too easy to spend time on this seemingly useful exercise and, after months of investigation and selection and architecting, to end up with an impractical, oversized and over-engineered platform – and no running microservices. Such discussions slow down the process of microservices adoption, obstruct the view of the essential challenges, and set up an organization for disappointing results (if not outright frustration).

A third category of risk is to just start building microservices without a clear business need for or objective with a microservices architecture or, even worse, without really understanding what a microservices architecture entails from an organizational perspective. The operative keyword being overlooked: DevOps.

This article provides some insights and guidelines that can help propel teams of architects beyond discussions and into action. Perhaps it can also help establish some architecture guidelines, such as the importance of domain design.

What do we want to achieve with microservices?

When discussing microservices, we must remember what our objectives are. Microservices are not the objective; they are merely the means. Microservices are meant to help us with those objectives and if they do not do so, we neither need nor want them. Read the complete article here.

 

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Free eBook Cloud Integration & API Management for dummies

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Want simplify integration in the cloud? Monetize with API management and empower citizen developers? Get the free Cloud Integration & API Management eBook here.

Get the free eBook here.

PaaS Partner Community

For regular information on Oracle PaaS become a member in the SOA & BPM Partner Community for registration please visit www.oracle.com/goto/emea/soa (OPN account required) If you need support with your account please contact the Oracle Partner Business Center.

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Recursion in XSLT by Martien van den Akker

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Last week I helped someone on the Oracle community forums with transforming a comma separated string to a list of elements. He needed this to process each element in BPM Suite, but it is a use case that can come around in SOA Suite or even in Oracle Integration Cloud.
You would think that you could do something like a for-each and trimming the element from the variable.

Recursion

One typical thing with XSLT is that variables are immutable. That means that you can declare a variable and assign a value to it, but you cannot change it. So it is not possible to assign a new value to a variable based on a substring of that same variable.
To circumvent this, you should implement a template that conditionally calls itself until an end-condition is met. This is a typical algorithm called recursion. Recursion is a way of implementing a function that calls itself, for example to calculate the faculty of a number. Recursion can help circumventing the immutability of variables, because with every call to the function you can pass (a) calculated and thus different value(s) through the parameter(s).
I wrote about this earlier, but last week a co-worker asked a similar question, but just the other way around: transforming a list into a comma separated string. So, apparently it’s time to write an article about it. Read the complete article here.

 

PaaS Partner Community

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The power of Oracle Event Driven Architecture by Roger van de Kimmenade

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Introduction

There is a lot of hype around Microservices and the use of events for implementing the choreography pattern. However this is nice for companies like Netflix and Twitter, but there are a lot of organisations still struggling with files and ESB like products. Also my current client uses an ESB namely the Oracle SOA Suite 12c for integrations. We cannot just throw away this ESB, but we can make use of the event mechanism built in. This blog describes the way we use the EDN (Event Delivery Network) component, that is used within SOA composites to throw events and to subscribe on events.

EDN

Oracle has a component that you can use to publish events and to subscribe on events within a SOA composite. Just use the invoke activity with the eventname and the content of the event. Within a composite you can subscribe on events and set filters. You can also configure “oneAndOnlyone” consistency property and indicate if you want a durable or non-durable subscriber. The EDN hides the underlying JMS provider, which can be changed (weblogic jms or OracleAQ). Separate Topics can be defined for each event or just use 1 topic for all events.

Notes:

  • Applications must always be abstracted by a corresponding SOA Composite. Applications should not use JMS directly
  • EDN cannot be used directly from within Oracle OSB
  • Read the complete article here.

 

PaaS Partner Community

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Oracle Integration Cloud 19.2.3 Release – New Features by Niall Commiskey

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The official doc describing the new features etc. is here

Some things that caught my eye –

Integration Improvements

· Inline Activity Stream with timestamps –

· New Automation Anywhere adapter –

· Ability to edit a Schedule from the Integration design page

· Read the complete article here.

 

PaaS Partner Community

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PaaS (Process & Integration) Partner Community Newsletter July 2019

Dear PaaS Partner Community

Want to increase the Oracle Cloud business? Create new service offerings and solutions for the Cloud? Watch the on-demand PaaS Overview Webcast. Martijn Vlek, Vice President Sales Cloud Native & Integration presents the latest PaaS sales plays, kits and how to get access to the Oracle Cloud platform. You as an Oracle partner can use the same content that we use to train the internal Oracle sales team. Each sales kit includes an elevator pitch, battle card, customer presentation in ppt format and references. Feel free to adopt the kits with your services offering. As a tip we recommend to distribute the battle cards in your sales team valets. Access the Oracle sales kits on sales central here.

Registration for the ninth edition of the PaaS Summer Camp is open. The training takes place August 26th-30th 2019 in Lisbon Portugal. For details please visit the registration page here.

imageThis month’s we start a new series to promote your partners customer success. Watch Luis Weir, CTO Capgemini how he disrupts financial industry clients with solutions based on the Oracle Cloud Platform. We want to promote your customer success! Have you implemented successful a solution based on the Oracle Cloud Platform? Submit your success story via the customer reference program.

The June edition of Oracle Integration Cloud 19.2.3 release includes new integration features like Inline Activity Stream with timestamps, New Automation Anywhere adapter and the ability to edit a Schedule from the Integration design page. New process features include Canvas changes, Common expression builder in Decision modeling editor, Conditional expressions in data association, Smart sentries in dynamic processes, Promote process application samples to the gallery for easy sharing and QuickStart Apps enhancements. Thanks to the community for sharing all the integration articles: How The Co-op Cut Time to Hire in Two Quarters & How to Capture EBS Business Event in Oracle Integration Cloud & Using Stage File Write operation(with opaque schema) to copy files & Securing files using PGP encryption (Part-1-Encryption): Oracle Integration & Securing files using PGP encryption (Part-2-Decryption): Oracle Integration & OIC – First Steps with the ATP adapter & How to create ZIP files: Oracle Integration Cloud & Migrating ICS to OIC & Custom time range filter for monitoring pages in OIC & How to Update Oracle SOA 11g Timeouts.

In the process & innovation section we published a blog post from Ankur how to develop a simple application from scratch and to enable notifications. The Blockchain team released an intelligent track and trace SaaS solution. Mario describes in an article the connection of Blockchain and IoT.

For a short summery of our key monthly information watch the PaaS Partner Updates on YouTube. The July edition highlights sales, marketing and enablement support for partners. This month’s community webcast will be a joint webcast with our partner Evosys to innovate, extend and integrate SaaS our monthly PaaS Partner Community Webcast – July 19th 2019.

To read the newsletter please visit www.tinyurl.com/PaaSNewsJuly2019 (OPN Account required).

Please like and share the newsletter at Twitter and LinkedIn

Jürgen Kress

Newsletter Logo 2017

PaaS Partner Adoption
Oracle EMEA
Tel. +49 89 1430 1479
E-Mail: juergen.kress@oracle.com
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