Create utility for Keys (Header, Body, etc.)

[CodeShellDev]

Description

Create utitilities for .VAR, @data.key and #Content_Type, to reduce magic variables.

Solution

Add utils/keys...? and

• add prefixes to it (global)
• add common funcs for transforming maps to prefixed versions
• add funcs for extracting data by keys with headers, body, ...
• add extra func to requests for using req to get data by prefixed key
• more...?

Alternatives

No alternatives.

Additional Context

Code is getting way to filled with magic @ or #, etc. and many funcs could be generalised into one modular one.