Custom Connector

Hello everyone.

Currently I am creating a cloud flow. It has a number of API calls. What are some circumstances I should think of making a custom connector? One reason can be of using them in future in other flows.

Also, currently I have no authentication type for the APIs, but I was thinking to use Azure Key Vault to get the authentication details from it.

But, now I am thinking why not just make custom connectors for all the apis. By this I can do the authentication, individually and I will not have to pass any hard coded values of urls that I am doing in HTTP action.

So, I just wanted some advice, why should I prefer custom connector? What are some circumstances I should prefer making a custom connector?

What method should I prefer for creating the custom APIs. Connect with url, or file or blank, or postman or github.

What authentication type should I use?

What is more secure, custom connector or getting authentication details from key vault?

Are there any limitations to custom connectors?

Thanks.

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