@tanstack/query-core/build/legacy/infiniteQueryBehavior.cjs.map

The framework agnostic core that powers TanStack Query

{"version":3,"file":"infiniteQueryBehavior.cjs","names":["ensureQueryFn","addToStart","addToEnd"],"sources":["../../src/infiniteQueryBehavior.ts"],"sourcesContent":["import {\n  addConsumeAwareSignal,\n  addToEnd,\n  addToStart,\n  ensureQueryFn,\n} from './utils'\nimport type { QueryBehavior } from './query'\nimport type {\n  InfiniteData,\n  InfiniteQueryPageParamsOptions,\n  OmitKeyof,\n  QueryFunctionContext,\n  QueryKey,\n} from './types'\n\nexport function infiniteQueryBehavior<TQueryFnData, TError, TData, TPageParam>(\n  pages?: number,\n): QueryBehavior<TQueryFnData, TError, InfiniteData<TData, TPageParam>> {\n  return {\n    onFetch: (context, query) => {\n      const options = context.options as InfiniteQueryPageParamsOptions<TData>\n      const direction = context.fetchOptions?.meta?.fetchMore?.direction\n      const oldPages = context.state.data?.pages || []\n      const oldPageParams = context.state.data?.pageParams || []\n      let result: InfiniteData<unknown> = { pages: [], pageParams: [] }\n      let currentPage = 0\n\n      const fetchFn = async () => {\n        let cancelled = false\n        const addSignalProperty = (object: unknown) => {\n          addConsumeAwareSignal(\n            object,\n            () => context.signal,\n            () => (cancelled = true),\n          )\n        }\n\n        const queryFn = ensureQueryFn(context.options, context.fetchOptions)\n\n        // Create function to fetch a page\n        const fetchPage = async (\n          data: InfiniteData<unknown>,\n          param: unknown,\n          previous?: boolean,\n        ): Promise<InfiniteData<unknown>> => {\n          if (cancelled) {\n            return Promise.reject(context.signal.reason)\n          }\n\n          if (param == null && data.pages.length) {\n            return Promise.resolve(data)\n          }\n\n          const createQueryFnContext = () => {\n            const queryFnContext: OmitKeyof<\n              QueryFunctionContext<QueryKey, unknown>,\n              'signal'\n            > = {\n              client: context.client,\n              queryKey: context.queryKey,\n              pageParam: param,\n              direction: previous ? 'backward' : 'forward',\n              meta: context.options.meta,\n            }\n            addSignalProperty(queryFnContext)\n            return queryFnContext as QueryFunctionContext<QueryKey, unknown>\n          }\n\n          const queryFnContext = createQueryFnContext()\n\n          const page = await queryFn(queryFnContext)\n\n          const { maxPages } = context.options\n          const addTo = previous ? addToStart : addToEnd\n\n          return {\n            pages: addTo(data.pages, page, maxPages),\n            pageParams: addTo(data.pageParams, param, maxPages),\n          }\n        }\n\n        // fetch next / previous page?\n        if (direction && oldPages.length) {\n          const previous = direction === 'backward'\n          const pageParamFn = previous ? getPreviousPageParam : getNextPageParam\n          const oldData = {\n            pages: oldPages,\n            pageParams: oldPageParams,\n          }\n          const param = pageParamFn(options, oldData)\n\n          result = await fetchPage(oldData, param, previous)\n        } else {\n          const remainingPages = pages ?? oldPages.length\n\n          // Fetch all pages\n          do {\n            const param =\n              currentPage === 0\n                ? (oldPageParams[0] ?? options.initialPageParam)\n                : getNextPageParam(options, result)\n            if (currentPage > 0 && param == null) {\n              break\n            }\n            result = await fetchPage(result, param)\n            currentPage++\n          } while (currentPage < remainingPages)\n        }\n\n        return result\n      }\n      if (context.options.persister) {\n        context.fetchFn = () => {\n          return context.options.persister?.(\n            fetchFn as any,\n            {\n              client: context.client,\n              queryKey: context.queryKey,\n              meta: context.options.meta,\n              signal: context.signal,\n            },\n            query,\n          )\n        }\n      } else {\n        context.fetchFn = fetchFn\n      }\n    },\n  }\n}\n\nfunction getNextPageParam(\n  options: InfiniteQueryPageParamsOptions<any>,\n  { pages, pageParams }: InfiniteData<unknown>,\n): unknown | undefined {\n  const lastIndex = pages.length - 1\n  return pages.length > 0\n    ? options.getNextPageParam(\n        pages[lastIndex],\n        pages,\n        pageParams[lastIndex],\n        pageParams,\n      )\n    : undefined\n}\n\nfunction getPreviousPageParam(\n  options: InfiniteQueryPageParamsOptions<any>,\n  { pages, pageParams }: InfiniteData<unknown>,\n): unknown | undefined {\n  return pages.length > 0\n    ? options.getPreviousPageParam?.(pages[0], pages, pageParams[0], pageParams)\n    : undefined\n}\n\n/**\n * Checks if there is a next page.\n */\nexport function hasNextPage(\n  options: InfiniteQueryPageParamsOptions<any, any>,\n  data?: InfiniteData<unknown>,\n): boolean {\n  if (!data) return false\n  return getNextPageParam(options, data) != null\n}\n\n/**\n * Checks if there is a previous page.\n */\nexport function hasPreviousPage(\n  options: InfiniteQueryPageParamsOptions<any, any>,\n  data?: InfiniteData<unknown>,\n): boolean {\n  if (!data || !options.getPreviousPageParam) return false\n  return getPreviousPageParam(options, data) != null\n}\n"],"mappings":";;;AAeA,SAAgB,sBACd,OACsE;CACtE,OAAO,EACL,UAAU,SAAS,UAAU;;EAC3B,MAAM,UAAU,QAAQ;EACxB,MAAM,aAAA,wBAAY,QAAQ,kBAAA,QAAA,0BAAA,KAAA,MAAA,wBAAA,sBAAc,UAAA,QAAA,0BAAA,KAAA,MAAA,wBAAA,sBAAM,eAAA,QAAA,0BAAA,KAAA,IAAA,KAAA,IAAA,sBAAW;EACzD,MAAM,aAAA,sBAAW,QAAQ,MAAM,UAAA,QAAA,wBAAA,KAAA,IAAA,KAAA,IAAA,oBAAM,UAAS,CAAC;EAC/C,MAAM,kBAAA,uBAAgB,QAAQ,MAAM,UAAA,QAAA,yBAAA,KAAA,IAAA,KAAA,IAAA,qBAAM,eAAc,CAAC;EACzD,IAAI,SAAgC;GAAE,OAAO,CAAC;GAAG,YAAY,CAAC;EAAE;EAChE,IAAI,cAAc;EAElB,MAAM,UAAU,YAAY;GAC1B,IAAI,YAAY;GAChB,MAAM,qBAAqB,WAAoB;IAC7C,cAAA,sBACE,cACM,QAAQ,cACP,YAAY,IACrB;GACF;GAEA,MAAM,UAAUA,cAAAA,cAAc,QAAQ,SAAS,QAAQ,YAAY;GAGnE,MAAM,YAAY,OAChB,MACA,OACA,aACmC;IACnC,IAAI,WACF,OAAO,QAAQ,OAAO,QAAQ,OAAO,MAAM;IAG7C,IAAI,SAAS,QAAQ,KAAK,MAAM,QAC9B,OAAO,QAAQ,QAAQ,IAAI;IAG7B,MAAM,6BAA6B;KACjC,MAAM,iBAGF;MACF,QAAQ,QAAQ;MAChB,UAAU,QAAQ;MAClB,WAAW;MACX,WAAW,WAAW,aAAa;MACnC,MAAM,QAAQ,QAAQ;KACxB;KACA,kBAAkB,cAAc;KAChC,OAAO;IACT;IAEA,MAAM,iBAAiB,qBAAqB;IAE5C,MAAM,OAAO,MAAM,QAAQ,cAAc;IAEzC,MAAM,EAAE,aAAa,QAAQ;IAC7B,MAAM,QAAQ,WAAWC,cAAAA,aAAaC,cAAAA;IAEtC,OAAO;KACL,OAAO,MAAM,KAAK,OAAO,MAAM,QAAQ;KACvC,YAAY,MAAM,KAAK,YAAY,OAAO,QAAQ;IACpD;GACF;GAGA,IAAI,aAAa,SAAS,QAAQ;IAChC,MAAM,WAAW,cAAc;IAC/B,MAAM,cAAc,WAAW,uBAAuB;IACtD,MAAM,UAAU;KACd,OAAO;KACP,YAAY;IACd;IAGA,SAAS,MAAM,UAAU,SAFX,YAAY,SAAS,OAEG,GAAG,QAAQ;GACnD,OAAO;IACL,MAAM,iBAAiB,SAAS,SAAS;IAGzC,GAAG;KACD,MAAM,QACJ,gBAAgB,IACX,cAAc,MAAM,QAAQ,mBAC7B,iBAAiB,SAAS,MAAM;KACtC,IAAI,cAAc,KAAK,SAAS,MAC9B;KAEF,SAAS,MAAM,UAAU,QAAQ,KAAK;KACtC;IACF,SAAS,cAAc;GACzB;GAEA,OAAO;EACT;EACA,IAAI,QAAQ,QAAQ,WAClB,QAAQ,gBAAgB;;GACtB,QAAA,yBAAA,mBAAO,QAAQ,QAAA,CAAQ,eAAA,QAAA,0BAAA,KAAA,IAAA,KAAA,IAAA,sBAAA,KAAA,kBACrB,SACA;IACE,QAAQ,QAAQ;IAChB,UAAU,QAAQ;IAClB,MAAM,QAAQ,QAAQ;IACtB,QAAQ,QAAQ;GAClB,GACA,KACF;EACF;OAEA,QAAQ,UAAU;CAEtB,EACF;AACF;AAEA,SAAS,iBACP,SACA,EAAE,OAAO,cACY;CACrB,MAAM,YAAY,MAAM,SAAS;CACjC,OAAO,MAAM,SAAS,IAClB,QAAQ,iBACN,MAAM,YACN,OACA,WAAW,YACX,UACF,IACA,KAAA;AACN;AAEA,SAAS,qBACP,SACA,EAAE,OAAO,cACY;;CACrB,OAAO,MAAM,SAAS,KAAA,wBAClB,QAAQ,0BAAA,QAAA,0BAAA,KAAA,IAAA,KAAA,IAAA,sBAAA,KAAA,SAAuB,MAAM,IAAI,OAAO,WAAW,IAAI,UAAU,IACzE,KAAA;AACN;;;;AAKA,SAAgB,YACd,SACA,MACS;CACT,IAAI,CAAC,MAAM,OAAO;CAClB,OAAO,iBAAiB,SAAS,IAAI,KAAK;AAC5C;;;;AAKA,SAAgB,gBACd,SACA,MACS;CACT,IAAI,CAAC,QAAQ,CAAC,QAAQ,sBAAsB,OAAO;CACnD,OAAO,qBAAqB,SAAS,IAAI,KAAK;AAChD"}