Struct QrCode 

pub struct QrCode { /* private fields */ }

二维码图片数据

包含生成的二维码图片的二进制数据，通常是 PNG 格式。

示例

use wechat_minapp::{Client, QrCodeArgs};

let client = Client::new("app_id", "secret");
let args = QrCodeArgs::builder().path("pages/index/index").build()?;
let qr_code = client.qr_code(args).await?;

// 获取二维码数据
let buffer = qr_code.buffer();
println!("二维码大小: {} bytes", buffer.len());

// 保存到文件
// std::fs::write("qrcode.png", buffer)?;

Implementations

impl QrCode

pub fn buffer(&self) -> &Vec<u8>

获取二维码图片的二进制数据

返回的字节向量通常是 PNG 格式的图片数据，可以直接写入文件或返回给 HTTP 响应。

返回

二维码图片的二进制数据引用

Trait Implementations

impl Clone for QrCode

fn clone(&self) -> QrCode

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for QrCode

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for QrCode

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for QrCode

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

where __S: Serializer,

Serialize this value into the given Serde serializer.