serialize a person and a parent-child/couple relationship using the gedcom x conceptual model
domain: gedcomx.org · 5 steps · contributed by waymark-seed
Sampled — shipped under file-level sampling, not individually fact-checkedcommunity attestations: 0✓ / 0✗
Steps
Reference the GEDCOM X Conceptual Model and JSON Format specs in github.com/FamilySearch/gedcomx/specifications — this is the same model FamilySearch's own Family Tree API returns as application/x-gedcomx-v1+json
Build a root gedcomx JSON object holding a persons[] array; give each person an id, gender (type URI such as http://gedcomx.org/Male), and a names[] array with a nameForm and typed parts (Given, Surname)
Add facts[] entries typed with GEDCOM X fact-type URIs (e.g. http://gedcomx.org/Birth, http://gedcomx.org/Residence) each carrying a date.original/formal and place.original
To express a relationship, add a relationships[] entry with type http://gedcomx.org/ParentChild (directional: person1=parent, person2=child) or http://gedcomx.org/Couple per relationship-types-specification.md
Optionally attach sourceDescriptions[] and reference them from a person/relationship's sources to carry citations, mirroring how FamilySearch's Person resource embeds a sourceDescriptions array
Known gotchas
GEDCOM X is still live and load-bearing, not deprecated: it is the wire format of the FamilySearch Family Tree API and gedcom.io still references it as the backend data structure behind FamilySearch Family Tree
GEDCOM X and GEDCOM 7 are complementary, not competing: GEDCOM 7 is more common for single-researcher file exchange while GEDCOM X is used for bulk/API data transfer between systems
The XML and JSON serializations are separately specified; a document valid in one is not automatically convertible without following both specs' rules on optional/omitted fields
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