cash back api

[ashraf-km]

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• Have you checked to ensure there aren't other open Pull Requests for the same update/change?

New Feature Submissions:

1. Does your submission pass tests?
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Changes to Core Features:

• Have you added an explanation of what your changes do and why you'd like us to include them?
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[sonarcloud]

Kudos, SonarCloud Quality Gate passed!

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

No Coverage information
0.0% Duplication

[blackduck-copilot]

Black Duck Security Report

Merging #176 into master will not change security risk.

Added Components

Clean: 1

Click here to see full report

[codeclimate]

Code Climate has analyzed commit 3daf17a and detected 0 issues on this pull request.

The test coverage on the diff in this pull request is 100.0% (5% is the threshold).

This pull request will bring the total coverage in the repository to 83.0% (1.0% change).

View more on Code Climate.