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OSIT-AE-API-FastAPI/documentation/V3_FRONTEND_API_GUIDE.md
Scott Idem 734576817c Refactor: Modularize lib_general.py by extracting core functionalities.
- Extracted Email functions to app/lib_email.py.
- Extracted Export functions to app/lib_export.py.
- Extracted JWT utilities to app/lib_jwt.py.
- Extracted Hash utilities to app/lib_hash.py.
- Updated app/lib_general.py to import from these new modules for backward compatibility.
- Updated V3 Frontend API Guide with latest security and site_domain exception details.
2026-01-07 17:41:04 -05:00

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# Aether API V3 Frontend Integration Guide (Svelte/TypeScript)
This guide explains how to update or create frontend functions to interact with the new **Aether API V3 CRUD** endpoints. V3 introduces a nested URL structure, a powerful POST-based search, and improved performance.
---
## 1. Key Differences (V2 vs V3)
| Feature | CRUD V2 (Legacy) | CRUD V3 (Modern) |
| --- | --- | --- |
| **Base Prefix** | `/v2/crud` | `/v3/crud` |
| **List Suffix** | Uses `/list` | **No suffix** (e.g., `/v3/crud/journal/`) |
| **Nested Path** | Not supported in URL | **Supported** (e.g., `/v3/crud/journal/{id}/journal_entry/`) |
| **View Selection**| `tbl_alt`, `mdl_alt` | **`view` parameter** (e.g., `?view=enriched`) |
| **Complex Search**| Limited to GET `jp` | **POST `/search`** (Unlimited size + Hybrid params) |
| **Full-Text Search**| Manual column names | **Reserved `q` property** in SearchQuery |
---
## 2. Authentication and Security (Mandatory in V3)
As of January 2026, the V3 architecture enforces strict **Multi-Tenant Isolation**. Most requests now require valid authentication to prevent data leakage between accounts.
### A. Authentication Requirement
Almost all V3 CRUD endpoints require a standard Bearer token in the `Authorization` header.
* **Mandatory:** You must provide a valid JWT for nearly all requests.
* **Account Isolation:** The backend automatically filters all results based on the `account_id` found in your JWT. You cannot access data belonging to another account even if you know the random ID.
* **Status Codes:**
* `401 Unauthorized`: Your JWT is invalid or expired.
* `403 Forbidden`: No authentication provided, or you attempted to access an object belonging to a different account.
**Example Request Header:**
```http
Authorization: Bearer <your_jwt_token>
```
### B. The "Bootstrap Paradox" Exception (`site_domain`)
There is one critical exception to strict authentication: **`site_domain` search**.
Because the frontend needs to lookup the site configuration (to know which account it's on) *before* a user can log in, the following endpoint allows unauthenticated (guest) access:
**Endpoint:** `POST /v3/crud/site_domain/search`
This is the only V3 search allowed without a JWT. All other object types (journal, account, post, etc.) will return `403 Forbidden` if accessed without a token.
---
## 3. Implementing V3 CRUD Functions
### A. List & Single Object (GET)
Support for view selection allows fetching richer data models when needed.
```ts
// Example: Get enriched journal details
// GET /v3/crud/journal/{id}?view=enriched
export async function get_ae_obj_v3({ api_cfg, obj_type, obj_id, view = 'default' }) {
const endpoint = `/v3/crud/${obj_type}/${obj_id}`;
return await get_object({ api_cfg, endpoint, params: { view } });
}
```
### B. Advanced & Hybrid Search (POST)
The `/search` endpoint combines the power of complex logical bodies with the simplicity of query parameters.
```ts
export async function search_ae_obj_v3({
api_cfg,
obj_type,
search_query, // { q: "search term", and: [...] }
enabled = 'enabled',
view = 'default',
for_obj_type,
for_obj_id
}) {
const endpoint = `/v3/crud/${obj_type}/search`;
// Standard filters can be passed as query params
const params: any = { enabled, view };
if (for_obj_type) params.for_obj_type = for_obj_type;
if (for_obj_id) params.for_obj_id = for_obj_id;
return await post_object({
api_cfg,
endpoint,
params,
data: search_query
});
}
```
### C. Standardized Global Search (`q`)
Use the `q` property in your search body for a keyword search.
- **Wildcard Support**: Setting `q: "%"` will bypass all text filtering and return all records (respecting only logical filters like `enable`).
- **Fallback**: If the table lacks a `default_qry_str` column, the API automatically performs a `LIKE` search across all searchable fields.
```json
{
"q": "Annual Meeting",
"and": [{ "field": "enable", "op": "eq", "value": true }]
}
```
---
## 4. Create, Update, & Delete (POST, PATCH, DELETE)
V3 supports both top-level operations and nested parent/child operations.
### A. Create (POST)
When creating objects, V3 strictly validates the incoming JSON against the `mdl_in` Pydantic model.
```ts
// POST /v3/crud/{obj_type}/
export async function create_ae_obj_v3({ api_cfg, obj_type, data }) {
const endpoint = `/v3/crud/${obj_type}/`;
return await post_object({ api_cfg, endpoint, data });
}
// POST /v3/crud/{parent_obj_type}/{parent_obj_id}/{child_obj_type}/
// Note: Parent ID is automatically injected into the child record.
export async function create_nested_obj_v3({ api_cfg, parent_type, parent_id, child_type, data }) {
const endpoint = `/v3/crud/${parent_type}/${parent_id}/${child_type}/`;
return await post_object({ api_cfg, endpoint, data });
}
```
### B. Update (PATCH)
V3 uses `PATCH` for partial updates. Only the fields provided in the body will be modified in the database.
```ts
// PATCH /v3/crud/{obj_type}/{obj_id}
export async function update_ae_obj_v3({ api_cfg, obj_type, obj_id, data }) {
const endpoint = `/v3/crud/${obj_type}/${obj_id}`;
return await patch_object({ api_cfg, endpoint, data });
}
```
### C. Delete (DELETE)
The `DELETE` method is used for removal. The backend may implement soft-delete (hide/disable) depending on the configuration.
```ts
// DELETE /v3/crud/{obj_type}/{obj_id}
export async function delete_ae_obj_v3({ api_cfg, obj_type, obj_id }) {
const endpoint = `/v3/crud/${obj_type}/${obj_id}`;
return await delete_object({ api_cfg, endpoint });
}
```
---
## 5. Specialized & Context Endpoints
### A. Context Resolution (FQDN)
Used during initial load to find the `account_id` associated with the domain.
**Legacy Method:** `GET /crud/site/domain/{fqdn}?use_alt_table=true&use_alt_base=true`
**Modern V3 Method (Preferred):** `POST /v3/crud/site_domain/search` with `{ "q": "your-domain.com" }`
### B. Schema Discovery
**Path**: `GET /v3/crud/{obj_type}/schema`
Used for developer tools or dynamic UI builders to understand the structure of an AE object.
```ts
// GET /v3/crud/account/schema
export async function get_obj_schema_v3({ api_cfg, obj_type }) {
const endpoint = `/v3/crud/${obj_type}/schema`;
return await get_object({ api_cfg, endpoint });
}
```
---
## 6. Secure File Downloads (URL Parameter)
For `hosted_file` and `event_file`, browsers often need to download files without complex header modifications. In these cases, you can pass the JWT directly in the URL.
```ts
// Example: Creating a secure download link for a browser
// GET /v3/crud/hosted_file/{id}/?jwt={token}
const downloadUrl = `${BASE_URL}/v3/crud/hosted_file/${fileId}/?jwt=${jwtToken}`;
```
---
## 7. Best Practices for V3
1. **Use `view` for Rich Data**: Instead of manually joining data in separate calls, use `?view=enriched` or `?view=detail`.
2. **Singular Nouns**: Always use singular names for `obj_type` (e.g., `journal`).
3. **Strict Typing**: Ensure your `data` objects match the backend models to avoid `400 Bad Request` validation errors.