azure_storage_blob 0.9.0

Microsoft Azure Blob Storage client library for Rust
Documentation 
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// Copyright (c) Microsoft Corporation. All rights reserved.
// Licensed under the MIT License.

use async_trait::async_trait;
use azure_core::http::{
    headers::CLIENT_REQUEST_ID,
    policies::{Policy, PolicyResult},
    Context, Request,
};
use std::sync::Arc;
use uuid::Uuid;

#[derive(Debug, Clone)]
pub struct StorageHeadersPolicy;

#[cfg_attr(target_arch = "wasm32", async_trait(?Send))]
#[cfg_attr(not(target_arch = "wasm32"), async_trait)]
impl Policy for StorageHeadersPolicy {
    async fn send(
        &self,
        ctx: &Context,
        request: &mut Request,
        next: &[Arc<dyn Policy>],
    ) -> PolicyResult {
        if request
            .headers()
            .get_optional_string(&CLIENT_REQUEST_ID)
            .is_none()
        {
            let request_id = Uuid::new_v4().to_string();
            request.insert_header(CLIENT_REQUEST_ID, &request_id);
        }
        next[0].send(ctx, request, &next[1..]).await
    }
}