...

curl -X POST \
  http://localhost:4000/verifications \
  -H 'content-type: application/json' \
  -d '{
  "phone_number": "+380936235985"
}'

Generate human readable declaration number

1. Use algorithm to generate declaration_number
2. Declaration number should consist of a 4 serial symbols and 8 number symbols and looks like XXXX-12H4-245D
3. Add field to ops.declarations - declaration_number