Struct azure_functions::bindings::Blob

pub struct Blob(_);

Represents an Azure Storage blob input or output binding.

The following binding attributes are supported:

Name	Description
name	The name of the parameter being bound.
path	The path to the blob.
connection	The name of an app setting that contains the Storage connection string to use for this binding. Defaults to AzureWebJobsStorage.

Examples

Creating a blob from a string:

use azure_functions::bindings::{HttpRequest, Blob};
use azure_functions::func;

#[func]
#[binding(name = "output1", path = "example")]
pub fn create_blob(_req: HttpRequest) -> ((), Blob) {
    ((), "Hello world!".into())
}

Creating a blob from a JSON value (see the json! macro from the serde_json crate):

use azure_functions::bindings::{HttpRequest, Blob};
use azure_functions::func;
use serde_json::json;

#[func]
#[binding(name = "output1", path = "example")]
pub fn create_blob(_req: HttpRequest) -> ((), Blob) {
    ((), json!({ "hello": "world!" }).into())
}

Creating a blob from a sequence of bytes:

use azure_functions::bindings::{HttpRequest, Blob};
use azure_functions::func;

#[func]
#[binding(name = "output1", path = "example")]
pub fn create_blob(_req: HttpRequest) -> ((), Blob) {
    ((), [1, 2, 3][..].into())
}

Methods

impl Blob

pub fn as_str(&self) -> Option<&str>

Gets the content of the blob as a string.

Returns None if there is no valid string representation of the blob.

pub fn as_bytes(&self) -> &[u8]

Gets the content of the blob as a slice of bytes.

pub fn as_json<'b, T>(&'b self) -> Result<T> where
    T: Deserialize<'b>, 

Deserializes the blob as JSON to the requested type.

Trait Implementations

impl Into<String> for Blob

fn into(self) -> String

Performs the conversion.

impl Into<Value> for Blob

fn into(self) -> Value

Performs the conversion.

impl Into<Vec<u8>> for Blob

fn into(self) -> Vec<u8>

Performs the conversion.

impl<'a> Into<Body<'a>> for Blob

fn into(self) -> Body<'a>

Performs the conversion.

impl Clone for Blob

fn clone(&self) -> Blob

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<'a> From<&'a str> for Blob

fn from(content: &'a str) -> Self

Performs the conversion.

impl From<String> for Blob

fn from(content: String) -> Self

Performs the conversion.

impl<'_> From<&'_ Value> for Blob

fn from(content: &Value) -> Self

Performs the conversion.

impl From<Value> for Blob

fn from(content: Value) -> Self

Performs the conversion.

impl<'a> From<&'a [u8]> for Blob

fn from(content: &'a [u8]) -> Self

Performs the conversion.

impl From<Vec<u8>> for Blob

fn from(content: Vec<u8>) -> Self

Performs the conversion.

impl Debug for Blob

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

Formats the value using the given formatter.

impl Display for Blob

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

Formats the value using the given formatter.