software.amazon.awssdk.core.exception.SdkClientException: Unable to marshall request to JSON: Protocol must be 'http' or 'https', but was daxs

[raghavEpam]

Hi @yasminetalby ,
We are using java sdk 2. creating client as follows : -
DynamoDbClient.builder()
.credentialsProvider(credentialsProvider)
.endpointOverride(URI.create(daxEndpoint))
.overrideConfiguration(
ClientOverrideConfiguration.builder()
.retryPolicy(RetryMode.STANDARD)
.build()
)
.region(Region.of(region))
.build();

Any suggestions what can we do for this exception?
It would be great If I can get some solutions.

[yasminetalby]

Hello @raghavEpam ,

Thank you very much for your message.
What are you trying to achieve?
I need more information to provide support on this issue.
Assuming your goal is to use (DynamoDb Accelerator) DAX, you would need to create a DAX Client.
The following documentation covers simple use cases : https://docs.aws.amazon.com/amazondynamodb/latest/developerguide/DAX.client.TryDax.java.html

Best,

Yasmine

[yasminetalby]

@raghavEpam
I am moving this thread to discussion as this is a general question about the Java SDK V2.
Let me know if you have any further questions.

Best,

Yasmine

[Bharatdaka]

Hi @yasminetalby ,

But with the daxClient do we have ClientOverrideConfiguration ?
ClientOverrideConfiguration.builder()
.retryPolicy(RetryMode.ADAPTIVE)
.build()
)

Or any suggestion on how to configure retryPolicy(RetryMode.ADAPTIVE) for dax client

Regards,
Bharat

[yasminetalby]

Hello @raghavEpam ,

Thank you very much for your response.
Yes you do have the option to override the client configuration.
You can override the client configuration through theDaxClientBuilder using overrideConfiguration.

To configure the retry mode used to determine the retry policy that is used when handling failure cases, you can use RetryPolicy(RetryMode retryMode). You can explore all other options available to you to override retry policy within the API documentation as well as specific warning/recommendation or descriptions for each method.

Please let me know if you have any other question or need further documentation.

Sincerely,

Yasmine

[kevinks]

Hi @yasminetalby

Do you have a sample example that I refer to for overriding the the client configuration through the DaxClientBuilder using overrideConfiguration? In the TryDax.java example the ClusterDaxAsyncClient doesn't seem to have the methods to override the client configuration or configure a Retry policy.

Thanks,
Kevin

[yasminetalby]

@github-actions proposed-answer
Hello @kevinks ,

There is no sample example currently available for this on our documentation base. I can make a requests to the documentation team to provide a sample.

However, the API documentation provided above should provide sufficient information to cover your use case.

As you can see in the API documentation for the DaxClientBuilder:

A builder for creating an instance of DaxClient. This can be created with the static DaxClient.builder() method.

Hence, you can build a DaxClient following the same process as in the TryDax documentation:

DaxClient.builder().build();

As you can see on the DaxClientBuilder documentation, it inherits the overrideConfiguration method from the SdkClientBuilder.

Following this documentation, you can see that:

[B](https://sdk.amazonaws.com/java/api/latest/software/amazon/awssdk/core/client/builder/SdkClientBuilder.html) overrideConfiguration([ClientOverrideConfiguration](https://sdk.amazonaws.com/java/api/latest/software/amazon/awssdk/core/client/config/ClientOverrideConfiguration.html) overrideConfiguration)
Specify overrides to the default SDK configuration that should be used for clients created by this builder.

Hence, you can provide a ClientOverrideConfiguration and the retry policy using retryPolicy([RetryMode](https://sdk.amazonaws.com/java/api/latest/software/amazon/awssdk/core/retry/RetryMode.html) retryMode) in the ClientOverrideConfiguration.Builder to configure the retry mode used to determine the retry policy that is used when handling failure cases. It is shorthand for retryPolicy(RetryPolicy.forRetryMode(retryMode)), and overrides any configured retry policy on this builder.

As a side note, you can also configured the SDK retry mode as an environment variable using AWS_RETRY_MODE (see)

I hope I was able to clarify how to configure the retry policy and provide sufficient documentation for your use case. I will forward your request for more Dax code sample to the documentation team.

Best regards,

Yasmine

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