# Module ethcore_light::on_demand [−] [src]

On-demand chain requests over LES. This is a major building block for RPCs. The request service is implemented using Futures. Higher level request handlers will take the raw data received here and extract meaningful results from it.

## Modules

request | Request types, verification, and verification errors.

## Structs

OnDemand | On demand request service. See module docs for more details. Accumulates info about all peers' capabilities and dispatches requests to them accordingly.
Response | Future which awaits a response to an on-demand request.

## Enums

Error | Errors which can occur while trying to fulfill a request.

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