proto-blue-api

High-level AT Protocol client -- Agent, RichText, moderation, and generated types from 322 Lexicon schemas.

Installation

[dependencies]
proto-blue-api = "0.3"

Exports

Agent, Session, AgentError -- authenticated API client
RichText, RichTextSegment, Facet, FacetFeature, detect_facets -- rich text processing
ModerationDecision, ModerationOpts, check_muted_words, known_labels -- content moderation
generated:: -- types generated from AT Protocol Lexicon schemas

Identifier types (Did, Handle, AtUri, AtIdentifier, ...) live in proto_blue_syntax; CIDs live in proto_blue_lex_data. The Agent surface and generated XRPC parameters take these by reference instead of &str.

Usage

Agent

use proto_blue_api::Agent;
use proto_blue_syntax::AtIdentifier;

#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
    let agent = Agent::new("https://bsky.social")?;
    let ident = AtIdentifier::new("alice.bsky.social")?;
    agent.login(&ident, "app-password").await?;
    agent.post("Hello from Rust!", None, None).await?;
    Ok(())
}

RichText

use proto_blue_api::rich_text::{RichText, FacetFeature};

let mut rt = RichText::new("Hello @alice.bsky.social! #atproto".to_string(), None);
rt.detect_facets();
for seg in &rt.segments() {
    if let Some(facet) = &seg.facet {
        match &facet.features[0] {
            FacetFeature::Mention { did } => println!("@{did}"),
            FacetFeature::Link { uri } => println!("{uri}"),
            FacetFeature::Tag { tag } => println!("#{tag}"),
        }
    }
}

Migrating from 0.2.x

v0.3.0 replaces String/&str identifier arguments and fields with validated newtypes from proto_blue_syntax. Wire format is unchanged; callers construct typed values explicitly.

use proto_blue_syntax::{Did, Handle, AtUri, AtIdentifier};
use proto_blue_lex_data::Cid;

Common swaps:

agent.login("alice.bsky.social", pw) -> agent.login(&AtIdentifier::new("alice.bsky.social")?, pw)
agent.resolve_handle("alice.bsky.social") -> agent.resolve_handle(&Handle::new("alice.bsky.social")?) (now returns Did)
agent.follow(&did_str, ...) -> agent.follow(&Did::new(did_str)?, ...)
agent.like(&uri_str, &cid_str, ...) -> agent.like(&AtUri::new(uri_str)?, &Cid::new(cid_str)?, ...)
agent.delete_post(&uri_str) (and delete_like / delete_repost / delete_follow) -> pass &AtUri
agent.get_post_thread(&uri_str, ...) -> &AtUri; agent.get_profile(&actor_str, ...) -> &AtIdentifier
agent.create_account(&handle_str, pw, email, ...) -> &Handle
Session.did: String -> Did; Session.handle: String -> Handle; LabelerOpts.did: String -> Did. access_jwt, refresh_jwt, and email remain String.
Agent::did() -> Option<Did> (was Option<String>).

resume_session and resolve_handle now validate server-returned DIDs through Did::new; a malformed DID surfaces as AgentError::Other(...) instead of being stored verbatim.

Generated XRPC method parameters whose lexicons declare a format-typed string (did, handle, at-uri, cid, nsid, ...) now expose the corresponding newtype on the request struct.

License

Licensed under MIT OR Apache-2.0.

Part of the proto-blue AT Protocol SDK for Rust.

proto-blue-api 0.3.1