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Questions - optimistic-locking

DynamoDB: How to specify version attribute through schema

@DynamoDBVersionAttribute private long version; We are not using annotations in our project. So for every model, we have a schema definition. I am not sure how to specify a version attribute fi...
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SRI PREM

amazon-dynamodb

optimistic-locking

Votes: 0

Answers: 2

Latest Answer

Based on the AWS docs for optimistic locking (e.g., C# and Java) this a feature of the mapping SDK, not a feature of DynamoDB or the table-attribute itself. If you look at the CreateTable API, there i...
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Marc L.

version number vs ETag for optimistic concurrency

I'm implementing my first Web API with JSON responses and got confused handling concurrency control for optimistic locking. Right now I develop the server with ASP.NET Core 6 and the client is develop...
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M. Koch

rest

http

asp.net-core-webapi

etag

optimistic-locking

Votes: 0

Answers: 1

Latest Answer

To me "Conflict 409" is the right response for a concurrency error, but the RFC states that a "Precondition Fails 412" needs to be send, which is not clear enough. Of course an er...
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