Azure API Management vs. Azure Application Gateway

The range of policies that enable the APIs to loosely couple it with security, rate limit, retry, etc. are good. We can easily tie authentication mechanisms to external and other internal services without having to modify the backend.

Incentivized

The best practice for a cloud environment is to use the tools provided by the cloud provider. That's why for Azure cloud, Azure Application Gateway is the most cost-effective solution that you can use. You can use a single Azure Application Gateway instance for load balancing WAF, URL-based routing, and more.

Incentivized

• Management of APIs
• Security of the API through Azure AD, AD B2C etc.
• Providing an outer layer through APIs

• Uploading images by multiple end-users from several applications like web, mobile, etc.
• When there is a high volume of data requests, it helps to queue them based on the type of request. So it's easy to serve and reduce the loading time from the application layer.
• An application gateway is useful when it can identify the type of details the user is requesting.

Incentivized

• Cost - the upfront cost is a bit restrictive. I've been told it is because there are a few underlying VMs that are running this service. So if you're just starting out with API management, it can be an expensive proposition. Value increases as you add additional APIs. If you're using Azure B2C for the developer portal, you'll require Standard or Premium since they support AAD integration.
• Security granularity - at time of writing, APIM doesn't support breaking out operations to products. For example, if you have an API that has a GET and a POST operation, and you want the POST operation to require a different subscription. There is a work around, but it makes management a bit messy.
• Developer and Publisher portal - it's a little weird. Microsoft hasn't migrated all the publisher portal functionality into the "native" Azure portal. So some of it feels a little weird - especially when working with the content management side of things for the developer portal.
• Scaling - while it's easy to scale up, the cost of APIM ramps up very quickly. Standard -> Premium is a 4x jump.

Incentivized

• More cost-effective pricing plans are welcome for the future, especially for WAF
• Ability to automate the TLS certificate renewal procedure
• Ability to manage non-HTTP traffic

Incentivized

Most of the Application Gateway's features and services can be managed and re-configured via either the Azure Portal GUI or via the Azure Cloud Shell, thus allowing both CLI modes, i.e. Azure CLI (Bash) and Azure Powershell. The v2 version of Application Gateway has significantly improved performance during initial configuration or during re-configuration changes, thus making it much more usable for IT admins, as compared to v1.

Incentivized

I don’t like that it's part of the Microsoft brand. In general, I am not a fan of Microsoft products but Azure gets it right.

Incentivized

Azure APIM vs Amazon API Gateway:

1) Azure APIM was a complete package that included a developer portal.

2) We are very Microsoft centric - so the Microsoft product suite aligned very well with our business needs.

3) It was faster and easier to stand up Azure APIM for testing than it was for the Amazon API Gateway.

Incentivized

HAProxy is an excellent load balancer that can also be used in cloud environments (and we do!), and is relied by hyper-large enterprises globally as well. However, HAProxy is a little bit more rudimentary in feature space, it does the core job well and securely, but doesn't provide any fancy additional features. Also, it takes more effort to deploy HAProxy than simply using an in-built feature in the Azure stack.

Incentivized

• It’s really pay as you go, so it's not that costly to get in and try it out. There’s no expensive client to buy and manage, but you do need to stay on top of the rapidly changing Azure environment to be sure you upgrade or adjust when needed.
• It’s not great having more than one API tool, but it’s ok to spread out your work, as you always want the right tool for the right job. For example, if you are a Salesforce-heavy organization, I’d go with Mule over Azure.
• It was easy getting an external consultant access to the tool to build their own API for a project they were working on for us.

Incentivized

• We are using Azure Application Gateway as the load balancing tool for our applications deployed on Azure Kubernetes Services (AKS) clusters.

Incentivized