floopy-sdk (Rust)

Official Floopy AI Gateway SDK for Rust. Drop-in wrapper around the async-openai crate with Floopy's cache, audit, experiments, routing, and security on top.

Why

floopy-sdk wraps the official async-openai crate and points it at the Floopy gateway, so:

• Zero migration cost for chat and embeddings — same types, same methods, via client.openai().
• Upstream updates to async-openai reach you on cargo update without forks or parity drift.
• Floopy-only features (audit, experiments, constraints, decision export, feedback, routing dry-run, sessions) get first-class typed, async methods instead of hand-rolled reqwest calls.

Install

cargo add floopy-sdk async-openai tokio --features tokio/macros,tokio/rt-multi-thread

The crate is published as floopy-sdk and imported as floopy. Requires Rust >= 1.82. It is fully async (Tokio).

Quick start

use floopy::Floopy;
use floopy::async_openai::types::chat::{
    ChatCompletionRequestUserMessageArgs, CreateChatCompletionRequestArgs,
};

#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
    let client = Floopy::new(std::env::var("FLOOPY_API_KEY")?)?;

    let request = CreateChatCompletionRequestArgs::default()
        .model("gpt-4o")
        .messages(vec![ChatCompletionRequestUserMessageArgs::default()
            .content("Hello from Floopy!")
            .build()?
            .into()])
        .build()?;

    let response = client.openai().chat().create(request).await?;
    println!("{:?}", response.choices[0].message.content);
    Ok(())
}

client.openai() returns a lazily-built async_openai::Client pre-pointed at the gateway; chat/embeddings/models behave exactly like upstream. The wrapped crate is re-exported as floopy::async_openai, so you don't declare it separately unless you want to.

Migrating from async-openai

- use async_openai::{Client, config::OpenAIConfig};
- let client = Client::with_config(
-     OpenAIConfig::new().with_api_key(std::env::var("OPENAI_API_KEY")?),
- );
+ use floopy::Floopy;
+ let fl = Floopy::new(std::env::var("FLOOPY_API_KEY")?)?;
+ let client = fl.openai();

  let response = client.chat().create(request).await?;

Floopy options (cache, prompt versioning, security firewall)

use floopy::{Floopy, FloopyOptions, CacheOptions};

# fn main() -> Result<(), Box<dyn std::error::Error>> {
let client = Floopy::builder(std::env::var("FLOOPY_API_KEY")?)
    .options(FloopyOptions {
        cache: Some(CacheOptions { enabled: Some(true), bucket_max_size: Some(3) }),
        prompt_id: Some("cd4249d5-44d5-46c8-8961-9eb3861e1f7e".into()),
        prompt_version: Some("1".into()),
        llm_security_enabled: Some(true),
    })
    .build()?;
# let _ = client;
# Ok(())
# }

These map to Floopy-* headers forwarded to every request (both OpenAI-compat calls and Floopy-only ones). Per-call overrides go through a trailing RequestOptions argument on every resource method.

Floopy-only resources

Each resource maps to a public /v1/* gateway endpoint and is typed end-to-end. Errors are [floopy::Error] variants (see below). Pagination and export are futures::Streams.

# use floopy::Floopy;
# use floopy::types::*;
# use futures::StreamExt;
# async fn demo(client: Floopy) -> Result<(), Box<dyn std::error::Error>> {
// Feedback
client.feedback().submit(FeedbackSubmitParams { score: 9, useful: true, session_id: None }, None).await?;

// Decisions (paginated Streams)
let d = client.decisions().get("req_123", None).await?;
let stream = client.decisions().iter(DecisionListParams::default(), None);
futures::pin_mut!(stream);
while let Some(decision) = stream.next().await { let _ = decision?; }

// Experiments (auto X-Floopy-Confirm: experiments header)
let exp = client.experiments().create(ExperimentCreateParams {
    name: "cost-vs-quality".into(),
    variant_a_routing_rule_id: "rule_a".into(),
    variant_b_routing_rule_id: "rule_b".into(),
    description: None, split_percentage: None,
}, None).await?;
client.experiments().rollback(&exp.id, None).await?;

// Constraints (full-replace PUT)
client.constraints().put(&OrgConstraints { cost_limit_monthly_usd: Some(100.0), ..Default::default() }, None).await?;

// Export (streamed JSONL + trailer)
let mut export = client.export().decisions_with_trailer(ExportDecisionsParams::new("a", "b"), None);
while let Some(row) = export.next().await { let _ = row?; }
println!("{:?}", export.trailer());

// Evaluations
let run = client.evaluations().create(EvaluationCreateParams {
    dataset_id: "ds_1".into(), model: "gpt-4o".into(), prompt_id: None, config: None,
}, None).await?;
let _ = client.evaluations().results(&run.id, Some(100), None, None).await?;

// Routing dry-run (Pro plan)
let explain = client.routing().explain(RoutingExplainParams::new("gpt-4o", vec![]), None).await?;
let _ = (explain.would_select, explain.firewall_decision);

// Sessions — restore a stored conversation
let session = client.sessions().get("sess_1", None).await?;
let _ = session.messages;
# Ok(()) }

Error handling

Every Floopy-only call returns Result<T, floopy::Error>:

# use floopy::{Error, Floopy};
# use floopy::types::DecisionListParams;
# async fn demo(client: Floopy) {
match client.decisions().list(&DecisionListParams::default(), None).await {
    Ok(page) => { let _ = page; }
    Err(Error::RateLimit(d)) => {
        let secs = d.retry_after_seconds.unwrap_or(1);
        tokio::time::sleep(std::time::Duration::from_secs(secs)).await;
    }
    Err(Error::Plan(d)) => eprintln!("upgrade plan: feature {:?} not in plan", d.feature),
    Err(e) => eprintln!("{e}"),
}
# }

Error::status(), Error::request_id(), Error::feature() and Error::retry_after_seconds() are available on every variant. Errors from chat/embeddings are emitted by async-openai (async_openai::error::OpenAIError), not this crate.

Security

• The API key is only ever sent in the Authorization header and is never rendered by Debug; the SDK never logs request or response bodies.
• TLS certificate verification is on by default (rustls + webpki-roots).
• Releases are immutable, signed crates.io publishes via Trusted Publishing (OIDC) — no long-lived registry token in this repo.

Self-hosting / custom base URL

# use floopy::Floopy;
# fn main() -> Result<(), Box<dyn std::error::Error>> {
let client = Floopy::builder(std::env::var("FLOOPY_API_KEY")?)
    .base_url("https://gateway.internal.acme.com/v1")
    .build()?;
# let _ = client; Ok(()) }

Links

• Full SDK guide: https://floopy.ai/docs/guides/sdks/floopy-sdk-rust (Português)
• API docs: https://docs.rs/floopy-sdk
• API reference: https://floopy.ai/docs/guides/api-reference
• Changelog: CHANGELOG.md

License

Apache-2.0 © Floopy