KrakenD and Dapr

[Alan Rutter]

I have a micro-services architecture that uses Dapr for inter-service communication. I have set up an Azure Container Apps environment with a couple of services and KrakenD as a gateway. I have added Dapr sidecar to the KrakenD container.

I have successfully tested that can I reach endpoints in my services via KrakenD using the FQDN from Azure, but I would like to avoid having to put this into my configuration files.

From my understanding, I should be able to use the Dapr sidecar in the KrakenD container to call my services.

There are several ways to configure the endpoint as per this article however when I get an error parsing my templates because it does not accept 'http://dapr-app-id:xxxx@localhost:8080' as a valid host.

Does anyone have experience configuring Dapr with KrakenD?

[Albert Garcia]

Hi Alan,

I'm not familiar with Dapr, but it seems it requires you to connect using Basic Auth. Instead of including the user & password directly in the host, you can use a Martian modifier to inject that Basic Auth credentials when calling Dapr, following the indications described in the documentation here: https://www.krakend.io/docs/backends/martian/#connecting-to-basic-auth-userpass-backends

You can find a running example here: https://github.com/krakend/examples/tree/main/7.backends-with-basic-auth, specifically in the lines 23-31 on the example configuration: https://github.com/krakend/examples/blob/72223d6ffe25292b0a32ab4e28c51db27043bc9f/7.backends-with-basic-auth/krakend.json#L23-L31.

I hope this helps.

Best regards,

	Albert García Business Director

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