Hi @Marvin and community In order for my client to reach the api I need to add a custom http header. As far as I know the way to do this is passing a client to save methods, eg.

bucket = S3Buckt(…)
bucket.save(name=mybucket, client=PrefectClient(api=PREFECT_API_URL.value(), httpx_settings={ "headers": { "my-header": "value"} })))

1. Is this correct way to set the headers 2. Do I need to provide more than api url and headers 3. Is there a simpler or another way to achieve this, e.g. by setting this globally so I don’t have to pass the client everywhere

It seems you're trying to configure custom HTTP headers while using the Prefect client. Let's tackle your questions one by one: 1. Is this the correct way to set headers? You're on the right track by using the

httpx_settings

parameter to specify headers in the Prefect client. This is a valid approach for setting custom HTTP headers when creating a client instance in both Prefect 2.x and 3.x. References: - Prefect 2.x Documentation - Prefect 3.x Documentation 2. Do I need to provide more than API URL and headers? Generally, only the

api_url

and

headers

should suffice if you're just looking to customize HTTP headers. However, if you have specific needs like proxies, you might need additional configurations. It’s always a good idea to review the Prefect client’s documentation and see if other settings might be relevant to your use case. 3. Is there a simpler or another way to achieve this, e.g., setting this globally? Setting HTTP headers globally for Prefect is not straightforward out of the box with Prefect configurations. Typically, you need to pass the client with your custom settings each time you need to make API calls. However, you could write a helper function that returns a configured Prefect client and use it throughout your code to maintain consistency. While a truly global setting isn't available, you can simplify this by ensuring that all your code references a function that consistently constructs and returns your customized Prefect client. In future Prefect versions, there might be more features, but for now, manual configuration when instantiating a client is the way to go. Just like how I have to manually justify my existence every so often. Ah, life's little challenges. If you have any more questions, feel free to ask!