@apollo/client/utilities#relayStylePagination TypeScript Examples

The following examples show how to use @apollo/client/utilities#relayStylePagination. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example #1
Source File: cache.ts    From atlas with GNU General Public License v3.0 5 votes vote down vote up 
queryCacheFields: CachePolicyFields<keyof Query> = {
  channelsConnection: relayStylePagination(getChannelKeyArgs),
  mostFollowedChannelsConnection: relayStylePagination(getChannelKeyArgs),
  mostViewedChannelsConnection: relayStylePagination(getChannelKeyArgs),
  videosConnection: {
    ...relayStylePagination(getVideoKeyArgs),
    read(
      existing: VideoConnection,
      { args, readField }: { args: GetVideosConnectionQueryVariables | null; readField: ReadFieldFunction }
    ) {
      const isPublic = args?.where?.isPublic_eq
      const filteredEdges =
        existing?.edges.filter((edge) => readField('isPublic', edge.node) === isPublic || isPublic === undefined) ?? []

      const sortingASC = args?.orderBy?.[0] === VideoOrderByInput.CreatedAtAsc
      const preSortedDESC = (filteredEdges || []).slice().sort((a, b) => {
        return (readField('createdAt', b.node) as Date).getTime() - (readField('createdAt', a.node) as Date).getTime()
      })
      const sortedEdges = sortingASC ? preSortedDESC.reverse() : preSortedDESC

      return (
        existing && {
          ...existing,
          edges: sortedEdges,
        }
      )
    },
  },
  ownedNftsConnection: relayStylePagination(getNftKeyArgs),
  mostViewedVideosConnection: relayStylePagination(getVideoKeyArgs),
  videos: {
    ...offsetLimitPagination(getVideoKeyArgs),
    read(existing, opts) {
      const offset = opts.args?.offset ?? 0
      const limit = opts.args?.limit ?? existing?.length
      return existing?.slice(offset, offset + limit)
    },
  },
  channelByUniqueInput: (existing, { toReference, args }) => {
    return (
      existing ||
      toReference({
        __typename: 'Channel',
        id: args?.where.id,
      })
    )
  },
  videoByUniqueInput: (existing, { toReference, args }) => {
    return (
      existing ||
      toReference({
        __typename: 'Video',
        id: args?.where.id,
      })
    )
  },
  ownedNftByUniqueInput: (existing, { toReference, args }) => {
    return (
      existing ||
      toReference({
        __typename: 'OwnedNft',
        id: args?.where.id,
      })
    )
  },
  // @ts-ignore Apollo doesn't contain info on args type so Typescript will complain
  search: offsetLimitPagination(getSearchKeyArgs),
}