Struct FileAttachment 

pub struct FileAttachment {
    pub id: String,
    pub name: String,
    pub content_type: String,
    pub encoding: String,
    pub data: String,
    pub size: usize,
}

Shared attachment model used by API calls and events. Inline attachment carried alongside JSON params or event data.

Fields

id: String

Attachment identifier referenced from JSON using { "$file": "..." }.

name: String

Original file name.

content_type: String

MIME type supplied by the sender.

encoding: String

Content transfer encoding. Current implementation uses Base64.

data: String

Encoded attachment payload.

size: usize

Original byte length before encoding.

Implementations

impl FileAttachment

pub fn inline_text( id: impl Into<String>, name: impl Into<String>, content_type: impl Into<String>, text: impl AsRef<str>, ) -> FileAttachment

Builds an inline text attachment and encodes it as Base64.

pub fn inline_bytes( id: impl Into<String>, name: impl Into<String>, content_type: impl Into<String>, bytes: Vec<u8>, ) -> FileAttachment

Builds an inline binary attachment and encodes it as Base64.

pub fn decode_bytes(&self) -> Result<Vec<u8>, ProtocolError>

Decodes the attachment payload back into raw bytes.

pub fn param_ref(id: impl Into<String>) -> Value

Returns a JSON reference object that points to an attachment by id.

Trait Implementations

impl Clone for FileAttachment

fn clone(&self) -> FileAttachment

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FileAttachment

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for FileAttachment

fn deserialize<__D>( __deserializer: __D, ) -> Result<FileAttachment, <__D as Deserializer<'de>>::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for FileAttachment

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

where __S: Serializer,

Serialize this value into the given Serde serializer.