How to implement a loopback API Proxy in Apigee Microgateway

[sezhou]

In the Edge Gateway, to implement a loopback API Proxy, I can just define a "NoRoute" route rule in the PreFlow of Proxy Endpoints as follows

<RouteRule name="NoRoute"/>

However, for a Microgateway API Proxy, this "NoRoute" route rule doesn't seem to be working. The Proxy will always try to reach the <HTTPTargetConnection> defined in the PreFlow of the Target Endpoints.

To clarify, a loopback proxy is that it receives API requests, processes them in the proxy, and send responses back without talking to a backend target endpoint.

Anyone knows how this can be done for Microgateway Proxy?

[dchiesa1 · Accepted solution]

I bet you could build what you want based on the existing healthcheck plugin.

https://github.com/apigee/microgateway-plugins/blob/master/healthcheck/index.js

The healthcheck plugin responds with a health check payload if the request handled by the edge micro gateway is for the path /healthcheck. It doesn't invoke any target. You could use that as a starting point, and insert your own conditional checks to build a loopback endpoint of some other kind.

[sezhou]

Thanks it works. It looks like the RouteRule "NoRoute" has no effect in Microgateway. The code in the healthcheck plugin generates the response and ends the response and i think that does the trick.

[brownsevan67]

Hello, can this stuff be useful for https://www.hookupgeek.com/tori-black/ how can i implement it?