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Data Feed Reader Example

Intro​

nodary-examples provides guidance on how to read data from data feeds effectively. Data feeds can be sourced from either a single beacon or a beacon set (an aggregation of multiple beacons). Since most data feeds managed by Api3 are formed by beacon sets, it's generally more reliable to use these Api3-managed data feeds. You can view the complete list of Nodary data feeds at nodary.io/feeds. For implementation details, follow the instructions in the README.md of nodary-examples and examine the example contract.

Proxies​

Data feeds are accessed through proxies, with each data feed ideally having its own dedicated proxy. There are different approaches to working with proxies depending on your data feed source:

For Nodary Data Feeds​

If you're working with individual Nodary beacons, refer to the nodary-examples for instructions on deploying a proxy or updating an existing one.

For Api3 Data Feeds​

For data feeds managed by Api3 (typically beacon sets), the deployment process is more straightforward. You can easily deploy proxies for these data feeds through the Api3 Market interface.

Once you have set up your proxy, you can integrate it with your contracts to read the latest data feed values using the example contract as a reference.