Move CMS Backend to the Nestjs

[korel-san]

Context

Move CMS Backend to the Nestjs

Expected result

• increase security (including removal all dependencies with possible vulnerabilities)
• increase stability (including error handling)
• expectation correspondence (including response format)
• less copy-pasted code
• less redundant code

Current result

• no one from the list above

Possible Fix

Use the semiautomated tool for migration current codebase to the separate layers of the application.

Suggestion

jscodeshift which you could apply to not all fixes at the same moment but step by step. After finishing the rest moments could be easily fixed manually.