Fuzzing Errors /api/upload

/api/upload

NR.1

{
      "file_name": "﷽",
      "file": "﷽"
}

NR.2

{
      "file_name": "⁰⁴⁵₀₁₂",
      "file": "⁰⁴⁵₀₁₂"
}

NR.3

{
      "file_name": "\"'\"'\"''''\"",
      "file": "\"'\"'\"''''\""
}

NR.4

{
      "file_name": "Ⱥ",
      "file": "Ⱥ"
}

NR.5

 {
      "file_name": "\\\\",
      "file": "\\\\"
 }

And many more ;)

artillery test script:

config:
  target: 'http://localhost:5000'
  phases:
    - duration: 60
      arrivalRate: 50
  plugins:
      fuzzer: {}
      expect: {}
scenarios:
  - flow:
      - post:
          url: "/api/upload"
          json:
            file_name: "{{ naughtyString }}"
            file: "{{ naughtyString }}"
          expect:
            - statusCode: 400