curl --request POST \
  --url http://localhost:8000/apps/{app_name}/users/{user_id}/sessions/{session_id}/artifacts \
  --header 'Content-Type: application/json' \
  --data '
{
  "filename": "notes.txt",
  "artifact": {
    "text": "Travel notes"
  }
}
'

import requests

url = "http://localhost:8000/apps/{app_name}/users/{user_id}/sessions/{session_id}/artifacts"

payload = {
    "filename": "notes.txt",
    "artifact": { "text": "Travel notes" }
}
headers = {"Content-Type": "application/json"}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'POST',
  headers: {'Content-Type': 'application/json'},
  body: JSON.stringify({filename: 'notes.txt', artifact: {text: 'Travel notes'}})
};

fetch('http://localhost:8000/apps/{app_name}/users/{user_id}/sessions/{session_id}/artifacts', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

{
  "version": 123,
  "canonicalUri": "<string>",
  "customMetadata": {},
  "createTime": 123,
  "mimeType": "<string>"
}

{
  "detail": "<string>"
}

{
  "detail": [
    {
      "loc": [
        "<string>"
      ],
      "msg": "<string>",
      "type": "<string>",
      "input": "<unknown>",
      "ctx": {}
    }
  ]
}

{
  "detail": "<string>"
}