Filtering — Proposed Guide

Planned API — Reference Only

Filtering: Filtering narrows a collection to records matching defined criteria. A useful expense query might combine a lifecycle status, a department and…

Overview

Filtering narrows a collection to records matching defined criteria. A useful expense query might combine a lifecycle status, a department and an incurred-date boundary without changing the stored resources.

Key concepts

Specify inclusive and exclusive date boundaries and the meaning of multiple values. Missing, null and empty-string fields must not be treated as interchangeable filters.

Implementation considerations

Reject unknown filter names instead of silently broadening a query that could expose additional financial records. Future contracts must list supported operators.

Proposed API behavior

GET /v1/expenses is an illustrative design for this topic. Path and field names may change before implementation. Access would require an authorized organization context and operation-specific permission; no public API or authorization grant is available here.

Illustrative query parameters
Name	Type	Description
status	string	Proposed lifecycle value. Its meaning depends on the resource and must not be inferred from HTTP success.
department_id	string	Stable fictional department reference; not a secret and not evidence that a resource exists.
start_date	string (date)	Synthetic calendar date in YYYY-MM-DD form; period inclusivity must be defined by the future contract.
end_date	string (date)	Synthetic calendar date in YYYY-MM-DD form; period inclusivity must be defined by the future contract.

Static example requests

Proposed, non-executing request examples

# Proposed request text only; this reserved host is not a live API.
curl -X GET 'https://api.remizen.example/v1/expenses?status=draft&department_id=dept_example_123&start_date=2026-01-15&end_date=2026-01-31' \
  -H 'Authorization: Bearer YOUR_API_KEY'

Fictional response example

200 (proposed example)Static response fixture

Fictional documentation data only. No request was sent, record created, review performed, payment initiated or provider connection activated.

JSON

{
  "data": [
    {
      "id": "exp_example_123",
      "organization_id": "org_example_123",
      "merchant": "Example Office Supply",
      "amount_minor": 12550,
      "currency": "USD",
      "status": "draft"
    }
  ],
  "pagination": {
    "has_more": false,
    "next_cursor": null
  },
  "meta": {
    "request_id": "req_example_123",
    "reference_only": true
  }
}

Illustrative error case

Review this failure case in context: Reject unknown filter names instead of silently broadening a query that could expose additional financial records. Future contracts must list supported operators.

422 (illustrative; final error contracts are undecided)Proposed error fixture

Synthetic diagnostic example. Human-readable messages must not be used as stable programmatic contracts.

JSON

{
  "error": {
    "code": "validation_error",
    "message": "The proposed filtering operation requires review of its input or authorization.",
    "request_id": "req_example_123"
  }
}

Proposed data types

Illustrative field dictionary
Name	Type	Description
status	string	Proposed lifecycle value. Its meaning depends on the resource and must not be inferred from HTTP success.
department_id	string	Stable fictional department reference; not a secret and not evidence that a resource exists.
start_date	string (date)	Synthetic calendar date in YYYY-MM-DD form; period inclusivity must be defined by the future contract.
end_date	string (date)	Synthetic calendar date in YYYY-MM-DD form; period inclusivity must be defined by the future contract.

Pagination

Getting Started

Sorting