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airnode-protocol
Advanced tools
The contracts that implement the Airnode protocol
See the docs and the whitepaper for a high level discussion of the protocol.
Airnode.sol
is a central contract that implements the entire protocol.
It is entirely permissionless, i.e., API3 is not its Owner
or has any privileges.
Therefore, it does not need to be duplicated, and all Airnode users will use the "official" Airnode.sol
contract that is already deployed on their chain.
Firstly, Airnode.sol
is a database.
It keeps records of providers, requesters, endpoints, templates and clients (see the docs for what these are) to be referred to while making requests.
In addition, clients use Airnode.sol
to make requests, and Airnodes use it to listen for requests made to them.
In this regard, it can be seen as a common oracle contract that all Airnodes use simultaneously.
This version of the protocol supports the request-response scheme, i.e., the requester makes a request and the Airnode reponds as soon as possible. The protocol will later be extended to support other schemes, most notably publish-subscribe.
Additional schemes do not overlap with request-response significantly, and thus are planned to be implemented as separate contracts (e.g., AirnodeSubscribe.sol
).
In other words, the request-response scheme will soon be finalized and improvements to the protocol will not break it.
The protocol is not finalized yet to get more input about what additional features we should support. Therefore, the contracts are not thoroughly tested and audited yet. Feel free to raise any issues that are not already reported.
FAQs
> The contracts that implement the Airnode protocol
The npm package airnode-protocol receives a total of 4 weekly downloads. As such, airnode-protocol popularity was classified as not popular.
We found that airnode-protocol demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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