API Gateway:General issues

To what scenarios is API Gateway applicable and what does it do?

You can use API Gateway to expose all or some applications that you deploy on Elastic Compute Service (ECS) or Container Service for Kubernetes (ACK) instances as APIs.

Can I delete the Alibaba Cloud Marketplace app?

No.

Can I use a security service or a Server Load Balance (SLB) instance together with API Gateway?

By default, API Gateway handles all security issues for you. Therefore, you do not need to further attach a security service to API Gateway. In addition, API Gateway automatically scales resources based on your business load, which means you do not need to deploy an SLB instance to API Gateway to handle load increases. However, if your backend service is run on multiple servers, you can use an SLB instance to balance loads among the servers.

Can I sign the service agreement online? How do I sign an offline agreement?

You can sign the agreement online, which is provided when you activate the service.

If you need to sign an offline agreement, contact the API Gateway product manager and legal team.

Can I upgrade or downgrade my instance and how do I do that?

Yes. For more information, see Change an instance specification.

Does the egress of my virtual private cloud (VPC) integration instance change?

Yes, it changes when you upgrade or downgrade your instance specification.

What are the management features in the console and how do I manage my resources?

You can create, manage, and publish your APIs in the console. You can also manage authorizations and traffic for your APIs.

What are the requirements for me to access API Gateway from a VPC?

You must ensure that API Gateway can communicate with the underlying services. Specifically, you must use Elastic IP Addresses (EIPs) or SLB instances so that API Gateway can invoke your underlying services.