parallel-stream | Data parallelism library for async-std | Reactive Programming library

A Query request has a Limit option just like you wanted. As for the offset, you have the ExclusiveStartKey option, which says at which sort key inside the long partition you want to start. Although usually one pages through a long partition by setting ExclusiveStartKey to the LastEvaluatedKey of the previous page, you don't strictly need to do this, and can actually pass any existing or even non-existing item, and the query will start after that key (that's the meaning of the word exclusive, i.e., it excludes).

But when you said "offset", you probably meant a numeric offset - e.g., start at the 1000th item in the partition. Unfortunately, this is not supported by DynamoDB. You can approximate it if your sort key (or LSI key) is a numeric offset if the item (only practical if you only append to the partition...) or using some additional data structures, but it's not supported by DynamoDB itself.