@nestjsx/crud Driver

Targets @nestjsx/crud — the popular CRUD framework for NestJS with a pipe-delimited query convention.

Configure

import { DriverEnum, provideNgQubee } from 'ng-qubee';

bootstrapApplication(AppComponent, {
  providers: [provideNgQubee({ driver: DriverEnum.NESTJSX_CRUD })]
});

Wire format

Concern	Output
Filters (single value)	filter=field||$eq||value
Filters (multi-value)	filter=field||$in||v1,v2
Operator filters	full FilterOperatorEnum mapping — see below
Sort	sort=field,ASC&sort=other,DESC (repeatable)
Flat field selection	fields=col1,col2
Joins	join=relation&join=other (repeatable)
Pagination	page=N&limit=N

Operator filters

FilterOperatorEnum translates to @nestjsx/crud’s $-prefixed condition operators:

import { FilterOperatorEnum } from 'ng-qubee';

qb.addFilterOperator('rating', FilterOperatorEnum.GTE, 4);            // filter=rating||$gte||4
qb.addFilterOperator('title', FilterOperatorEnum.CONTAINS, 'world');  // filter=title||$cont||world
qb.addFilterOperator('title', FilterOperatorEnum.ILIKE, 'World');     // filter=title||$contL||World
qb.addFilterOperator('title', FilterOperatorEnum.SW, 'Intro');        // filter=title||$starts||Intro
qb.addFilterOperator('id', FilterOperatorEnum.IN, 1, 2, 3);            // filter=id||$in||1,2,3
qb.addFilterOperator('status', FilterOperatorEnum.NOT, 'draft');      // filter=status||$ne||draft
qb.addFilterOperator('status', FilterOperatorEnum.NOT, 'a', 'b');     // filter=status||$notin||a,b
qb.addFilterOperator('deletedAt', FilterOperatorEnum.NULL, true);     // filter=deletedAt||$isnull
qb.addFilterOperator('deletedAt', FilterOperatorEnum.NULL, false);    // filter=deletedAt||$notnull
qb.addFilterOperator('price', FilterOperatorEnum.BTW, 10, 50);        // filter=price||$between||10,50

Translation table

FilterOperatorEnum	@nestjsx/crud operator
EQ	$eq
GT / GTE / LT / LTE	$gt / $gte / $lt / $lte
CONTAINS	$cont
ILIKE	$contL (case-insensitive contains)
IN	$in
SW	$starts
BTW	$between (arity-checked, emits min,max)
NOT (single)	$ne
NOT (multi)	$notin
NULL (true)	$isnull (no value segment)
NULL (false)	$notnull (no value segment)
FTS / PHFTS / PLFTS / WFTS	unsupported — throws UnsupportedFilterOperatorError

Value shape rules

Enforced at call time — both throw InvalidFilterOperatorValueError:

• BTW requires exactly 2 values (min,max).
• NULL requires exactly 1 boolean value (true → $isnull, false → $notnull).

Other operators leave shape validation to the server.

Feature matrix

Method	Supported?	Notes
addFilter / deleteFilters	✓	Folds to $eq (single) or $in (multi)
addFilterOperator / deleteOperatorFilters	✓	See translation table above
addSort / deleteSorts	✓	Repeatable sort=field,ASC params, uppercase direction
addSelect / deleteSelect	✓	Emitted as fields=col1,col2 (flat column projection)
addIncludes / deleteIncludes	✓	Emitted as repeatable join=relation params
addEmbedded / deleteEmbedded	✗	PostgREST-only — throws UnsupportedEmbeddedError
setLimit / setPage	✓	page + limit, page-based mode
addFields / deleteFields / deleteFieldsByModel	✗	@nestjsx/crud has no per-model field selection (per-relation projection via join=rel||f1,f2 is out of scope)
setSearch / deleteSearch	✗	The s={...} parameter is JSON-shaped, not a plain term — use operator filters instead

Response shape

{
  "data": [
    { "id": 1, "name": "John" }
  ],
  "count": 10,
  "total": 48,
  "page": 2,
  "pageCount": 5
}

NestjsxCrudResponseStrategy reads the flat { data, count, total, page, pageCount } envelope and computes from/to from (page - 1) * count + 1 and min(page * count, total). The envelope carries no navigation links, so firstPageUrl / prevPageUrl / nextPageUrl / lastPageUrl resolve to undefined unless you override their paths via IConfig.response.

Note

count is the number of entities on the current page, not the requested page size — on a partial last page the derived from/to underestimate. Compute exact indices from your requested limit if you need them on the last page.

Customising response paths

provideNgQubee({
  driver: DriverEnum.NESTJSX_CRUD,
  response: {
    data: 'items',
    total: 'totalCount'
  }
});

Defaults are encoded in NestjsxCrudResponseOptions.