Need explanation of invite URI parameters

ian · August 31, 2026, 4:13pm

src/securejoin/qrinvite.rs

main


      
          Contact {
              contact_id: ContactId,
              fingerprint: Fingerprint,
              #[serde(default)]
              addrs: Vec<String>,
              invitenumber: String,
              authcode: String,
              #[serde(default)]
              is_v3: bool,
          },
          Group {
              contact_id: ContactId,
              fingerprint: Fingerprint,
              #[serde(default)]
              addrs: Vec<String>,
              name: String,
              grpid: String,
              invitenumber: String,
              authcode: String,
              #[serde(default)]
              is_v3: bool,

interface/uri-schemes.md at main · deltachat/interface · GitHub
right after the hashmark: hexadecimal public key fingerprint of user who invited you, same as used in openpgp4fpr: URI
n: name of user who invited you
i, j: invitenumber
s: authcode
x: group ID and broadcast channel ID
g: type is group, its name
b: type is broadcast channel, its name
z: type is ArcaneChat moderated group, its name
its type is a direct chat invite if x, g, b and z are missing

When you reset an invite link, it invalidates the previous value and creates a new pair of i and s.