Validate request

1. Validate request using JSON schema
   
   1. In case validation failed - generate 422 error

{
  "$schema": "http://json-schema.org/draft-04/schema#",
  "type": "object",
  "properties": {
    "verification_code": {
      "type": "string"
    }
  },
  "required": [
    "verification_code"
  ],
  "additionalProperties": false
}

Authorize user

1. Verify the validity of access token
2. Check user scopes declaration_request:sign in order to perform this action
   1. In case error - generate 401 response

Get declaration request details

Get declaration request from IL_DB.declaration_request

Determine authorization method

Get authorization_method from IL_DB.declaration_request

SELECT IL_DB.declaration_request.authentication_method
FROM   IL_DB.declaration_request
WHERE IL_DB.declaration_request.id = :id

If authentication_method is NULL - return Error

If authentication_method == OFFLINE - check uploaded documents

If authentication_method IN (SMS, SMS_TRUSTEE) - verify SMS code

Verify code

Invoke verification module to verify OTP

OTP Verification

Check uploaded documents

Invoke Media Content Storage to check documents exist

Media Content Storage

Change declaration request status

1. Change entity status in OPS_DB.declaration_request to APPROVED