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PayloadRequestStrategy

Defined in: src/lib/strategies/payload-request.strategy.ts:55

Request strategy for the Payload CMS driver

Generates URIs in Payload's REST query format:

  • Filters: where[field][equals]=value (multi-value collapses to where[field][in]=v1,v2 CSV)
  • Operator filters: where[field][op]=value (translated from FilterOperatorEnum — BTW→greater_than_equal+less_than_equal pair, NOT→not_equals/not_in, NULL→exists with inverted boolean)
  • Sorts: sort=-createdAt,title (CSV, - prefix = DESC)
  • Field selection (flat): select[col1]=true&select[col2]=true
  • Pagination (page-based): page=N&limit=M

The where / sort / select / page / limit keys are fixed by Payload's REST endpoints and intentionally not configurable through QueryBuilderOptions; they live as private statics so they are visible in one place.

Relationship population is controlled by Payload's numeric depth param, not a named-relation list — addIncludes therefore throws UnsupportedIncludesError (pass depth through your HTTP layer if needed). There is no per-model field selection and no global search param. SW (no starts-with operator) and the PostgREST-native full-text operators (FTS, PHFTS, PLFTS, WFTS) throw UnsupportedFilterOperatorError.

See​

https://payloadcms.com/docs/queries/overview

Extends​

  • AbstractRequestStrategy

Constructors​

Constructor​

new PayloadRequestStrategy(): PayloadRequestStrategy

Returns​

PayloadRequestStrategy

Inherited from​

AbstractRequestStrategy.constructor

Properties​

capabilities​

readonly capabilities: IStrategyCapabilities

Defined in: src/lib/strategies/payload-request.strategy.ts:62

Filters, operator filters, sorts, flat field selection (select) — no per-model fields, no includes (numeric depth instead), no global search, no embedded resources

Overrides​

AbstractRequestStrategy.capabilities

Methods​

assertResource()​

protected assertResource(state): void

Defined in: src/lib/strategies/abstract-request.strategy.ts:89

Throw if the resource is not set on the state

Centralises the message that was previously copy-pasted across four of the five concrete strategies.

Parameters​

state​

IQueryBuilderState

The current query builder state

Returns​

void

Throws​

Error if state.resource is empty

Inherited from​

AbstractRequestStrategy.assertResource

baseUri()​

protected baseUri(state): string

Defined in: src/lib/strategies/abstract-request.strategy.ts:101

Compute the base path (no query string)

Parameters​

state​

IQueryBuilderState

The current query builder state

Returns​

string

The base URI without the query separator (e.g. /users or https://api.example.com/users)

Inherited from​

AbstractRequestStrategy.baseUri

buildUri()​

buildUri(state, options): string

Defined in: src/lib/strategies/abstract-request.strategy.ts:42

Compose the full request URI from the given state

Template method: validates the resource, computes the base path, delegates the per-driver query-string segments to parts(...), and joins them with the conventional ?/& separators.

Parameters​

state​

IQueryBuilderState

The current query builder state

options​

QueryBuilderOptions

The query parameter key name configuration

Returns​

string

The composed URI string

Throws​

Error if the resource is not set

Inherited from​

AbstractRequestStrategy.buildUri

join()​

protected join(base, segments): string

Defined in: src/lib/strategies/abstract-request.strategy.ts:115

Glue the base URI and the per-driver query-string segments

Returns the bare base when no segments were emitted (e.g. PostgREST in RANGE mode with no filters), otherwise joins with ? + &.

Parameters​

base​

string

The base URI from _baseUri

segments​

string[]

The query-string fragments from parts(...)

Returns​

string

The full URI

Inherited from​

AbstractRequestStrategy.join

parts()​

protected parts(state, _options): string[]

Defined in: src/lib/strategies/payload-request.strategy.ts:98

Emit Payload-format query-string segments in canonical order: where (merged) → sort → select → page → limit

Simple filters and operator filters share a single where wrapper so qs emits one ordered bracket structure rather than two duplicate top-level where[...] blocks.

Parameters​

state​

IQueryBuilderState

The current query builder state

_options​

QueryBuilderOptions

The query parameter key name configuration (unused; Payload's wire keys are fixed by the server)

Returns​

string[]

Ordered query-string fragments

Overrides​

AbstractRequestStrategy.parts

validateLimit()​

validateLimit(limit): void

Defined in: src/lib/strategies/abstract-request.strategy.ts:59

Validate that a limit value is acceptable for this driver

Default policy: positive integer. Drivers that recognise a sentinel (NestJS treats -1 as "fetch all") override this method.

Parameters​

limit​

number

The limit value to validate

Returns​

void

Throws​

If the value is not a positive integer

Inherited from​

AbstractRequestStrategy.validateLimit