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@Romazes Romazes commented Jan 30, 2026

Description

Uses IMapFileProvider to resolve ticker changes, provides an abstract method for mapped history retrieval, and overrides GetHistory to synchronize results.

Related Issue

N/a

Motivation and Context

Remove duplicate logic within consumers.

Requires Documentation Change

N/a

How Has This Been Tested?

  • Run in consumers.

Types of changes

  • Bug fix (non-breaking change which fixes an issue)
  • Refactor (non-breaking change which improves implementation)
  • Performance (non-breaking change which improves performance. Please add associated performance test and results)
  • New feature (non-breaking change which adds functionality)
  • Breaking change (fix or feature that would cause existing functionality to change)
  • Non-functional change (xml comments/documentation/etc)

Checklist:

  • My code follows the code style of this project.
  • I have read the CONTRIBUTING document.
  • I have added tests to cover my changes.
  • All new and existing tests passed.
  • My branch follows the naming convention bug-<issue#>-<description> or feature-<issue#>-<description>

Introduces an abstract class for history providers that handle symbol mapping and time-aligned data slices. Uses IMapFileProvider to resolve ticker changes, provides an abstract method for mapped history retrieval, and overrides GetHistory to synchronize results. Enables nullable reference types and adds documentation.
@Martin-Molinero Martin-Molinero merged commit 297207b into QuantConnect:master Jan 30, 2026
7 of 8 checks passed
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2 participants