SimpleFunctions Developer Manual

Old pattern

Do not scrape terminal output:

sf portfolio history | grep ...

Use JSON:

sf portfolio history --json --ticks 20 --trades 10 --since 2026-04-23

Parse stdout as one JSON document.

Use exit code and JSON error envelope:

sf query x --json

returns:

{
  "ok": false,
  "error": {
    "code": "VALIDATION_ERROR",
    "message": "Query must be at least 2 characters."
  }
}

Replace hardcoded command assumptions with:

sf describe --all --json