In this blog, I am going to show you how to build a nice and simple UI with data coming from invoking REST APIs. All without code, but in just a few clicks.
I consider myself a good backend developer, good at making things functional, but I really struggle every time I need to produce nice UIs. However, using Oracle Visual Builder, I feel like I don’t have to be a UI developer or designer, I can very easily produce nice and friendly mobile UIs that consume my backend REST APIs. If you are like me, a backend programmer who loves API-first design approach, I’m sure that you will find this blog not only informative, but also refreshing.
This is a quick view of what we are going to achieve in this article:
- First, we are going to auto-create Service controls in Oracle Visual Builder by pointing to existing REST APIs.
- Then, we are going to use the out-of-the box widgets and components to build a simple, yet powerful UI that consumes such APIs.
- Finally, we are going to publish the UI and test it across different media, e.g. Web on a laptop, mobile, tablets, etc.
Continue reading “Teaching How to Invoke REST APIs from Oracle Visual Builder Web/Mobile Apps”
In a recent blog post, I added a throwaway reference to the use of signed assertions as a better mechanism for interacting with the Oracle Identity Cloud Service REST APIs than the use of Client id/secret, though qualified it with ‘if you want to handle the additional complexity in your consuming client’. Reflecting upon this, I thought that perhaps it was worth trying to explain this ‘additional complexity’, since the use of signed assertions have a number of benefits; primarily that it does not require an exchange of sensitive information, as the private keys used to sign the assertion never need to leave the machine on which they are generated. In this blog post, I will delve deeper into what is required to leverage this authentication mechanism, for both clients and users.
Continue reading “Using Public/Private Key Authentication for Oracle IDCS”
A few days ago, we published an article that shows how to provision and connect to Oracle Autonomous Transaction Processing Database (ATP). Based on this, we got multiple requests to also demonstrate how to extend the connection to the Autonomous DB, not only from SQL Developer, but also from polyglot microservices.
In this blog, we are going to take a step forward and create a simple “Hello World” NodeJS application that exposes some REST APIs that push and pull data using an Oracle Autonomous DB. The idea is to give you all knowledge required, to be start building your own microservices, consuming data from Autonomous DB.
Continue reading “Teaching How to get Microservices to Consume Oracle Autonomous Transaction Processing Database (ATP)”
Last weekend, I was at the Code Network Winter Hackathon event in Brisbane – https://codenetwork.co/winter-hackathon-2018/. I was there as a sponsor, workshop presenter, mentor and just a general supporter. As such there was some down-time between different activities. So, what a great time to sit down and work on something that I have no idea about (technically) – #Blockchain and Hyperledger. So, as a normal person does – I went searching for relevant content to help. Here’s a couple of the searches that I did.
Unfortunately, through many different searches and reading lots of things it became apparent that I didn’t know much and there was lots to learn. There seemed to a massive amount information that looked great. There was content that talked about what a Blockchain is. There was content that talked about the business use cases and examples of why you use a Blockchain technology. There was code that built a Blockchain. I found plenty smart contract examples on github. I learnt more about what I needed to know but it didn’t get me to the place that I wanted to be.
So – how do I develop and play with a Smart Contract?
Continue reading “Building a Smart Contract with Oracle Blockchain Cloud Service @ #WinterHack2018”
Oracle is adding a secret recipe to all their Cloud Services with a nice touch of Machine Learning. This makes it possible to have the new series of “Autonomous” Cloud Services that are self-driving, self-healing and self-securing. Stay tuned, because we are going to keep listening a lot about them.
In this blog I am going to show you how to provision an Autonomous API Platform environment and then provision and register an API Gateway, running on a separate Oracle Linux VM on IaaS.
This is a graphical view of what I will be doing in this blog:
Continue reading “Teaching How to Provision Oracle Autonomous API Platform and API Gateway”
Oracle API Platform’s API Implementation has two service naming convention 1) API Request 2) Service Request.
API Request – is the endpoint to which users or applications send requests for your API.
Service Request – is the URL at which your back-end service receives requests.
In this blog we are going to discuss what are the additional configuration we need to done inside API Platform Gateway Server while invoking a HTTPS Service Request URL.
Since, its HTTPS URL obviously there is associated SSL cert with that URL which is signed by Certificate Authority.
Recently, I have been doing one POC where I was invoking a Service Request HTTPS URL but it was not working and later found out it’s because of associated SSL certificate was not configured in Weblogic JKS Keystore.
Before, I get into detailed solution, let me tell you bit more about problem. At very initial stage when I tried creating an API which is in-turn calling an HTTPS service request, it was failing while invoking that service from rest POSTMAN tool and was getting “Internal Server error” as per below snap.
Continue reading “Invoking HTTPS Service Request from Oracle API Platform”