Issues with deep nesting graphQuery

Developing with Prismic
1

Hi

I have been working on a graphQuery for a webinar page on our website. The page features 3 slice zones. In slices3, we have a slice which has some nested docs:

Agenda slice -> Date Doc -> Speech Doc -> Speaker Doc

Below is the graphQuery which works to bring back all of the data, down to and including the date doc.

webinar_page {
  festival_slices {
          ...on festival_data {
            ...festival_dataFields
            slices3 {
              ...on agenda {
                variation {
                  ...on default {
                    primary {
                      ...primaryFields
                      dates {
                        date {
                          ...dateFields
                          timeslots {
                            ...timeslotsFields
                          }
                        }
                      }
                    }
                  }
                }
              }
            }
          }
        }
      }

The Speech doc is linked to via a content-relationship field called timeslot, which is a child of the relationship field timeslots.

I've attempted a number of different iterations for fetching the timeslot (Speech Doc), including the one below, but I can't seem to get the query to work.

webinar_page {
  festival_slices {
          ...on festival_data {
            ...festival_dataFields
            slices3 {
              ...on agenda {
                variation {
                  ...on default {
                    primary {
                      ...primaryFields
                      dates {
                        date {
                          ...dateFields
                          timeslots {
                            timeslot {
                              ...timeslotFields
                            }
                          }
                        }
                      }
                    }
                  }
                }
              }
            }
          }
        }
      }

Is it possible to have multiple tiers of fetching here? And if so, any idea where I might be going wrong?

Thanks!

3

Nested fetching with GraphQuery can be prone to errors, especially when you have multiple tiers of linked documents.

In theory, you can fetch deeply nested linked documents with GraphQuery using multiple unions (...on). Maybe you could try to split the queries. First, fetch the IDs or UIDs of your nested documents, and then perform separate queries