Traffic shaping

The Apollo Router provides experimental support for traffic shaping.

Currently features are limited, but are expected to grow over time:

• Sub-query deduplication - Identical, in-flight, non-mutation sub-queries are compressed into a single request.

Configuration

To configure traffic shaping add the traffic_shaping plugin to your router.yaml:

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plugins:
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  experimental.traffic_shaping:
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    all:
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      dedup: true # Enable dedup for all subgraphs.
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    subgraphs: 
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      products:
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        dedup: false # Disable dedup for products.

Note that configuration in the subgraphs section will take precedence over that in the all section.

Sub-query deduplication

Deduplication will cause any identical, in-flight, non-mutation sub-queries to be merged into a single request. This can reduce network bandwidth and CPU at your subgraph.

Note that only in flight requests are deduplicated.