FILE_MIGRATE_X - Gogram TL Reference

HTTP 303 · See Other

HTTP 303 Migration Parameterized

When & why it happens

The requested file lives on a different DC. Re-issue the upload/download against DC X.

Parameterized error

The wire code carries a parameter on its tail (literal you'll see: FILE_MIGRATE_42). Gogram parses it out and stores it on ErrResponseCode.AdditionalInfo with the right type.

Handling in gogram

Surfaced as *gogram.ErrResponseCode. Match on the message:

if err, ok := err.(*gogram.ErrResponseCode); ok {
    if strings.HasPrefix(err.Message, "FILE_MIGRATE") {
        secs := err.AdditionalInfo.(int)
        time.Sleep(time.Duration(secs) * time.Second)
        // retry
    }
}

Related errors

NETWORK_MIGRATE_XThe source IP address is associated with DC %v.PHONE_MIGRATE_XThe phone number a user is trying to use for authorization is associated with DC %v.STATS_MIGRATE_XThe channel statistics must be fetched from DC %v.USER_MIGRATE_XThe user whose identity is being used to execute queries is associated with DC %v.