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Jobs and Collections

In Oracle's data feeds, a "job" is a specific connection to a data source designed to retrieve price feed information. On the other hand, a "collection" groups multiple jobs to represent the price of an asset. Together, jobs and collections ensure providing accurate and consistent data feeds within the network.

What is a Job?​

A "job" serves as a pivotal component that establishes a connection to a data source responsible for providing price feed information. The job comprises of the following parameters:

  • ID: Unique job identifier.

  • Selector Type: The selectorType parameter determines how the response from the URL should be parsed. Depending on the format of the data source's response, it can be set to JSON or XHTML.

  • Weight: The weight parameter designates the significance of each job's output. A higher weight indicates a greater relevance of the data obtained from that particular job.

  • Power: The power parameter fine-tunes the decimal precision of the job query's results, ensuring both accuracy and consistency in the data procured.

  • Name: Each job carries a name, which acts as a descriptive label to give clarity about the purpose or type of the data source.

  • Selector: The selector parameter pinpoints a specific pattern for extracting pertinent data from the URL source.

  • URL: The url parameter contains the web address necessary for gathering the desired data. It serves as the channel between the Oracle and the external data source.

What is a Collection?​

A collection refers to an assembly of jobs that, when taken together, signify the price of an asset. The collection comprises of the following parameters:

  • ID: Unique collection identifier.

  • Power: The power parameter dictates the extent of decimal shifts applied to the collection's result. Such precision adjustment guarantees consistency and accuracy in the reported value.

  • Tolerance: The tolerance parameter outlines the acceptable percentage variance from the value reported by the network. This permits minor fluctuations while ensuring that the stakers reported value stays within reasonable limits.

  • Aggregation Method: The aggregationMethod parameter denotes the technique adopted by stakers to consolidate data. It can be either "mean" or "median", providing flexibility in choosing the most suitable method.

  • JobIDs: Presented as an array, the jobIDs attribute specifies the distinct jobs that stakers should query in order to contribute to the collection.

  • Name: A collection's name refers to the name of an asset.

Explore Further: Browse all the collections and jobs on RazorScan Datafeeds.