Api Rest Ci Web Hosting Error – In this scenario, the organization has deployed multiple APIs using Azure Application Service Environment (ILB ASE) and they want to consolidate these APIs internally using Azure API Management (APIM) deployed in a virtual network. An internal instance of API management can also be exposed to external users to allow them to use the full potential of the APIs. This external exposure can be achieved through Azure Application Gateway, which forwards requests to an internal API Management service, which in turn consumes APIs hosted on the ASE.
Azure API Management Service can be deployed as a Multi-Zone deployment for greater availability and also to reduce latency. This feature is only available in Premium mode. The API management service in this particular scenario consumes APIs from App Service Environments. APIM can also be used for APIs hosted on internal infrastructure.
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App Service Environments can use Traffic Manager Profiles to distribute traffic deployed in App Service Environments for scalability and availability.
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API Management instances can be allocated based on a number of factors, such as the number and speed of concurrent connections, the type and number of policies configured, request and response sizes, and backend latency in APIs. Instance scaling options are available in Basic, Standard, and Premium Tiers, but are subject to scaling caps at tiers below Premium. Instances are called Units and can be scaled to a maximum of two units in the Basic tier, four units in the Standard tier, and any number of units in the Premium tier. Auto-scaling options are also available for rule-based scaling.
Application Service environments are designed to scale with pricing-based limitations, and applications hosted under Application Service environments can be configured to scale (number of instances) or grow (instance size) according to application requirements.
Azure Application Gateway auto-scaling is available as part of an optional Zone SKU in all global Azure regions. See Application Gateway Auto Scaling Public View.
Since the above example scenario is deployed entirely on-premises, API Management and ASE are already deployed on a secure infrastructure (Azure VNet). Application Gateways can be integrated with Microsoft Defender for Cloud to provide a seamless way to prevent, detect and respond to environmental threats. See the Azure Security Documentation for general guidance on developing secure solutions.
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Although this example scenario is more about configuration, APIs deployed in App Service Environments must be flexible enough to handle errors in requests handled by the API and Application Gateway Management Service. Check out the Iteration and Relay patterns in API design. For general guidance on designing resilient solutions, see Designing resilient applications for Azure.
API management is offered in four tiers: developer, basic, standard, and premium. You can find a detailed guide on the difference between these levels in the Azure API Management evaluation guide here.
Customers can scale API management by adding and removing units. Each unit has abilities based on its level.
A developer level API can be used to evaluate control functions. The developer tier should not be used for production.
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To see estimated costs and customize your deployment needs, you can change the number of scale units and App Service instances in the Azure pricing calculator.
After the above steps are successfully completed, configure the DNS records in the GoDaddy CNAME records of api.contoso.org and portal.contoso.org with the App Gateway public DNS name:
And verify that you can test the APIM services APIs through the Azure portal by accessing the Community Development Portal
It is not a good practice to use the same URL for internal and external endpoints for APIM services (both URLs are currently the same in the demo above). If we choose to have different URLs for internal and external endpoints, we can use App Gateway WAF v2 which supports http redirection and much more. Computer scientist Roy Fielding formulated REST and its principles in 2000, and they have become the de facto standard for today’s complex software development needs. They are everywhere and development, integration between systems, etc. is the first choice for
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While implementing APIs is important, it is equally important to have appropriate response codes for these APIs. When calling these REST APIs, the client needs to understand exactly what happened to its request. Did it succeed or fail? If it fails, what went wrong? This information helps customers manage their feedback and create a better user experience around them. Responses from APIs should be an important part of your API design process. This shouldn’t be an afterthought, but rather part of the API design process.
The HTTP protocol has standard specifications for different response codes. Let’s see what they are and how they are categorized.
HTTP consists of more than 70 pieces of code to deliver the results of a client request. The codes are divided into five different categories:
Although there are more than 70 HTTP codes, most developers cannot memorize them all. And the actual REST API doesn’t need to implement all of them. An efficient way to use HTTP response codes is to keep them to a small group and use the most common HTTP codes. It helps in debugging/customer interaction. For example, Google’s GData API implements ten response codes and Digg with eight.
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The magic number of code varies from developer to developer. But to start, think about the results of the interaction between the API and the application.
What does it mean? Simply put, you can start with at least three categories. Be sure to use the following:
This category of response code indicates that the client has made an error, ie. Any problem with the question. Most used codes
This category of response code means that there is a problem with the API (server) and the request cannot be processed. Although there are several 5xx codes, the most commonly used may suffice.
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Once you’ve added these three important codes, you can add any others you need. However, it is better not to exceed eight.
I’ve seen many misused response codes that complicate client/server interactions. Sometimes custom rules are created that don’t follow standard HTTP code. Then it makes it harder to explain/document/debug when using the APIs. The client may think that standard codes are returned and this can cause a lot of confusion and make it difficult to use these APIs. Here are some rules to help you
Fewer response codes make it easier for customers to know what happened to their request. Then they don’t have to spend time trying to figure out what code means on Google or Wikipedia.
Do you have questions or have any technical difficulties ❓ Do you need help developing a Digital SaaS solution, mobile application, web application? Send me a DM. I’m happy to call you to help! This is a comprehensive example of the Codeigniter REST API. In this tutorial, we’re learning how to create a REST API from scratch in a Codeigniter 4 application.
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REST defines a set of rules that enable communication between multiple programs. We will deal with CRUD operation using REST API, this tutorial mainly gives preference to HTTP methods like GET, PUT, POST, DELETE.
This post will help all beginner developers. I’m sure you should know all the quintessential techniques you need to learn how to build responsive web services in Codeigniter.
I create a CI application, connect to a database and add, update, delete and display data by interacting with a MySQL database. To test the rest of the API, we’ll also take a look at Mailers
You can get an idea from the following video and know what is REST API?
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The first step begins by installing the CodeIgniter 4 application. This installation requires the Composer Package Manager installed on your development machine.
You can skip the above process and download the Codeigniter application directly and avoid the above process.
Bug reporting is essential to app development and it makes your app development more accessible. Whether we are beginners or seasoned developers, we all make mistakes accidentally or unknowingly while developing.
Bug reporting helps us fix bugs in real-time and also helps us test the code in an easy way.
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We store and manage data in a database; What the REST API aims to do.
If you don’t know how to connect Codeigniter to MySQL database. Next, add the database name, username, password to the application/config/database.php file.
If you are still getting Codeigniter – unable to connect to MySQL database error, then change the hostname value based on your local server, e.g. MAMPP or XAMPP.
Create an EmployeeModel.php file inside the App/Models/ directory. Place the following code inside the file to define the template.
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Create a controller in Employee.php
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