📄 expo/technical-specs/expo-sfv-0

File: expo-sfv-0.md | Updated: 11/15/2025

Source: https://docs.expo.dev/technical-specs/expo-sfv-0

Hide navigation

Search

Ctrl K

Home Guides EAS Reference Learn

Archive Expo Snack Discord and Forums Newsletter

Expo Structured Field Values

Edit page

Copy page

Version 0

Edit page

Copy page


Structured Field Values for HTTP, IETF RFC 8941 , is a proposal to formalize header syntax and facilitate nested data.

Since it is still a work in progress, Expo maintains a custom version that only implements the following subset of the protocol defined in IETF RFC 8941 :

  • All key values
  • String, integer, and decimal items
  • Dictionaries