SpringResponseStrategy

Defined in: src/lib/strategies/spring-response.strategy.ts:40

Response strategy for the Spring Data REST driver

Parses Spring Data REST's HAL envelope:

{
  "_embedded": { "users": [{ "id": 1, "name": "John" }] },
  "_links": {
    "first": { "href": "..." },
    "prev": { "href": "..." },
    "next": { "href": "..." },
    "last": { "href": "..." }
  },
  "page": { "size": 20, "totalElements": 100, "totalPages": 5, "number": 1 }
}

Two HAL quirks are absorbed here on top of the inherited dot-path traversal:

• page.number is 0-indexed — the strategy adds 1 so the library state stays 1-indexed (mirroring SpringRequestStrategy, which subtracts 1 on the way out).
• The collection key under _embedded is the resource rel name (e.g. _embedded.users), which cannot be known statically. The default data path is plain _embedded; when it resolves to an object rather than an array, the strategy picks the first array value inside it. Consumers with multiple embedded rels can pin the exact path via IConfig.response (e.g. data: '_embedded.users').

Default key paths are configured in SpringResponseOptions.

See

https://docs.spring.io/spring-data/rest/reference/paging-and-sorting.html

Extends

• AbstractDotPathResponseStrategy

Constructors

Constructor

new SpringResponseStrategy(): SpringResponseStrategy

Returns

SpringResponseStrategy

Inherited from

AbstractDotPathResponseStrategy.constructor

Methods

paginate()

paginate<T>(response, options): PaginatedCollection<T>

Defined in: src/lib/strategies/spring-response.strategy.ts:50

Parse a Spring Data REST HAL response into a PaginatedCollection

Type Parameters

T

T extends IPaginatedObject

Parameters

response

Record<string, any>

The raw API response body

options

ResponseOptions

The response key name configuration

Returns

PaginatedCollection<T>

A typed PaginatedCollection instance

Overrides

AbstractDotPathResponseStrategy.paginate

---

resolve()

protected resolve(response, path): unknown

Defined in: src/lib/strategies/abstract-dot-path-response.strategy.ts:73

Resolve a value from a response object using a dot-notation path

Supports both flat keys ('data') and nested paths ('meta.totalItems').

Parameters

response

Record<string, any>

The raw response object

path

string

The dot-notation path to resolve

Returns

unknown

The resolved value, or undefined if any segment is missing

Inherited from

AbstractDotPathResponseStrategy.resolve

---

resolveFrom()

protected resolveFrom(response, options, currentPage, perPage?): number | undefined

Defined in: src/lib/strategies/abstract-dot-path-response.strategy.ts:90

Resolve the "from" index value

If options.from resolves to a value in the response, use it. Otherwise compute (currentPage - 1) * perPage + 1 when both are known.

Parameters

response

Record<string, any>

The raw response object

options

ResponseOptions

The response key name configuration

currentPage

number

The current page number

perPage?

number

The number of items per page

Returns

number | undefined

The "from" index, or undefined when neither path nor inputs suffice

Inherited from

AbstractDotPathResponseStrategy.resolveFrom

---

resolveTo()

protected resolveTo(response, options, currentPage, perPage?, total?): number | undefined

Defined in: src/lib/strategies/abstract-dot-path-response.strategy.ts:119

Resolve the "to" index value

If options.to resolves to a value in the response, use it. Otherwise compute Math.min(currentPage * perPage, total) when all three are known.

Parameters

response

Record<string, any>

The raw response object

options

ResponseOptions

The response key name configuration

currentPage

number

The current page number

perPage?

number

The number of items per page

total?

number

The total number of items

Returns

number | undefined

The "to" index, or undefined when neither path nor inputs suffice

Inherited from

AbstractDotPathResponseStrategy.resolveTo