Struct Metadata 

pub struct Metadata {
    pub binary_format_major_version: u16,
    pub binary_format_minor_version: u16,
    pub build_epoch: u64,
    pub database_type: String,
    pub description: BTreeMap<String, String>,
    pub ip_version: u16,
    pub languages: Vec<String>,
    pub node_count: u32,
    pub record_size: u16,
}

Metadata about the MaxMind DB file.

Fields

binary_format_major_version: u16

Major version of the binary format (always 2).

binary_format_minor_version: u16

Minor version of the binary format (always 0).

build_epoch: u64

Unix timestamp when the database was built.

database_type: String

Database type (e.g., “GeoIP2-City”, “GeoLite2-Country”).

description: BTreeMap<String, String>

Map of language codes to database descriptions.

ip_version: u16

IP version supported (4 or 6).

languages: Vec<String>

Languages available in the database.

node_count: u32

Number of nodes in the search tree.

record_size: u16

Size of each record in bits (24, 28, or 32).

Implementations

impl Metadata

pub fn build_time(&self) -> SystemTime

Returns the database build time as a SystemTime.

This converts the build_epoch Unix timestamp to a SystemTime.

Example

use maxminddb::Reader;

let reader = Reader::open_readfile("test-data/test-data/GeoIP2-City-Test.mmdb").unwrap();
let build_time = reader.metadata.build_time();
println!("Database built: {:?}", build_time);

Trait Implementations

impl Clone for Metadata

fn clone(&self) -> Metadata

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Metadata

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Metadata

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for Metadata

fn eq(&self, other: &Metadata) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for Metadata

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for Metadata

impl StructuralPartialEq for Metadata