Standard Library
15 modules ship with Niao: web frameworks, database drivers, ML tools, and the usual stdlib pieces. Each module page includes a full API reference synced from the standard library docs. Language reference →
HTTP • WebSocket • Migrations • Auth
HTTP and WebSocket backend framework. You write route handlers in Niao; the server runs on Tokio/Axum underneath.
Train models, work with tables, and plot results.
Niao Machine Learning
Machine learning in Niao: tensors, training loops, classic algorithms, and graph models. Heavy math runs in Rust (SIMD on CPU, CUDA optional).
Niao Column Library
Columnar data like pandas: typed columns, DataFrames, groupby, merges, and CSV I/O. Kernels are vectorized in Rust.
Niao Visualization
Charts for training runs and quick data checks. Save SVG or print ASCII in the terminal, no browser needed.
Drivers for MongoDB, PostgreSQL, and SQLite with pooling and migrations.
MongoDB Integration
MongoDB driver with pooling, CRUD, aggregations, indexes, transactions, GridFS, and change streams.
PostgreSQL Integration
PostgreSQL driver with connection pooling, migrations, prepared statements, LISTEN/NOTIFY, and COPY bulk load.
SQLite Integration
Embedded SQLite: file-based databases, migrations, prepared statements, transactions, and batch inserts. WAL on by default.
JSON, files, time, regex, data structures, threads, and config.
JSON Parse & Manipulate
Parse, build, and edit JSON. Backed by serde_json in Rust, nested get/set, merge, and pretty-print included.
File & Path I/O
Read and write files, stream large inputs, and work with paths. Blocking I/O can run on background threads.
Wall-Clock & Time Zones
Timestamps, formatting, parsing, and time zones. Built on chrono and chrono-tz, DST handled correctly.
Regular Expressions
Regular expressions via Rust's regex crate. Match, split, replace, and compile patterns once for hot loops.
Data Structures & Algorithms
Classic data structures and graph algorithms in Rust, lists, maps, heaps, BFS/DFS/Dijkstra, and array helpers.
Threading & Concurrency
Threads, mutexes, channels, and worker pools. Background jobs integrate with the VM scheduler via poll helpers.
Environment Variables
Read environment variables and .env files. Typed getters, schema validation, and isolated stores for tests.
HTTP, sockets, TLS, DNS, WebSocket, and mail/file clients.
HTTP • Sockets • TLS • WebSocket
HTTP client and small server, TCP/UDP sockets, TLS, DNS, WebSocket, plus SMTP and FTP clients.
Coverage
