{"id":22744246,"url":"https://github.com/rametta/array-buffed","last_synced_at":"2026-02-09T00:03:59.818Z","repository":{"id":251128170,"uuid":"836450323","full_name":"rametta/array-buffed","owner":"rametta","description":"🧬 Strongly typed schemas for binary data encoding and decoding with Array 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unexpected eof while reading","robots_txt_status":"success","robots_txt_updated_at":"2025-07-24T06:49:26.215Z","robots_txt_url":"https://github.com/robots.txt","online":false,"can_crawl_api":true,"host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":["array-buffer","binary","dataview","schema","uint8array"],"created_at":"2024-12-11T01:41:18.849Z","updated_at":"2026-02-09T00:03:59.802Z","avatar_url":"https://github.com/rametta.png","language":"TypeScript","funding_links":[],"categories":[],"sub_categories":[],"readme":"# 🧬 @rametta/array-buffed\n\n[![JSR](https://jsr.io/badges/@rametta/array-buffed)](https://jsr.io/@rametta/array-buffed)\n[![JSR Score](https://jsr.io/badges/@rametta/array-buffed/score)](https://jsr.io/@rametta/array-buffed)\n\n\u003e Strongly typed schemas for binary data encoding and decoding.\n\nDo you work with [ArrayBuffer](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/ArrayBuffer)?\n\nDo you wish it was easier to work with complex binary data?\n\nDo you love enforcing schema shapes with TypeScript types?\n\n**Then this package is for you!**\n\n## Installation\n\n```bash\n# bun\nbunx jsr add @rametta/array-buffed\n\n# pnpm\npnpm dlx jsr add @rametta/array-buffed\n\n# deno\ndeno add @rametta/array-buffed\n\n# npm\nnpx jsr add @rametta/array-buffed\n\n# yarn\nyarn dlx jsr add @rametta/array-buffed\n```\n\n## Usage\n\nStep 1: Define a schema\n\n```ts\nimport { t } from '@rametta/array-buffed'\n\nconst schema = t.tuple(\"Vector\", [\n  t.u32(\"x\"),\n  t.u32(\"y\"),\n  t.u32(\"z\"),\n])\n```\n\nStep 2: Encode data using the schema\n\n```ts\nimport { t, encode } from '@rametta/array-buffed'\n\nconst buffer = encode(schema, [50, 100, 1])\n```\n\nStep 3: Decode binary data using the schema\n\n```ts\nimport { t, decode } from '@rametta/array-buffed'\n\nconst [x,y,z] = decode(schema, buffer)\n// x: 50\n// y: 100\n// z: 1\n```\n\n## Creating Schemas\n\nCreating schemas is roughly based on how the data is stored in binary, so we do not use any object types with keys and values - every schema is created by defining tuples, arrays, and primitives like `u8`, `i16`, `f32`, etc.\n\n```ts\nimport { t } from '@rametta/array-buffed'\n\n// labels are optional for primitives, but useful for describing your data\nconst schema = t.tuple(\"World\", [\n  // tuples are fixed length arrays\n  t.tuple(\"world\", [t.i32(\"x\"), t.i32(\"y\")]),\n  t.tuple(\"color\", [t.u8(\"r\"), t.u8(\"g\"), t.u8(\"b\")])\n  // arrays have dynamic lengths and can only be one type, although that type can also be a tuple type\n  t.array(\"heights\", t.u16())\n  // various primitives\n  t.u16(\"width\"),\n  t.u16(\"height\"),\n  t.u8(\"depth\")\n])\n```\n\n## Inferring Types from Schemas\n\nUse the `Infer` helper type for extracting the Typescript type for any defined schema.\n\n```ts\nimport { t, type Infer } from '@rametta/array-buffed'\n\nconst schema = t.tuple(\"My Tuple\", [\n  t.u8(),\n  t.f64(\"My Float\"),\n  t.array(\"My Array\", t.i8())\n])\n\ntype Schema = Infer\u003ctypeof schema\u003e\n//   Schema = [number, number, Array\u003cnumber\u003e]\n\nconst data: Schema = [101, 3.5, [-4, 7, 9, 100, 74]] // type check compiles - woohoo\n```\n\n## All Schemas\n\n- String - [`t.str()`](https://jsr.io/@rametta/array-buffed/doc/~/t.str)\n- Tuple - [`t.tuple()`](https://jsr.io/@rametta/array-buffed/doc/~/t.tuple)\n- Array - [`t.array()`](https://jsr.io/@rametta/array-buffed/doc/~/t.array)\n- Union - [`t.union()`](https://jsr.io/@rametta/array-buffed/doc/~/t.union)\n- Buffer - [`t.buffer()`](https://jsr.io/@rametta/array-buffed/doc/~/t.buffer)\n- UInt8 - [`t.u8()`](https://jsr.io/@rametta/array-buffed/doc/~/t.u8)\n- UInt16 - [`t.u16()`](https://jsr.io/@rametta/array-buffed/doc/~/t.u16)\n- UInt32 - [`t.u32()`](https://jsr.io/@rametta/array-buffed/doc/~/t.u32)\n- UInt64 - [`t.u64()`](https://jsr.io/@rametta/array-buffed/doc/~/t.u64)\n- Int8 - [`t.i8()`](https://jsr.io/@rametta/array-buffed/doc/~/t.i8)\n- Int16 - [`t.i16()`](https://jsr.io/@rametta/array-buffed/doc/~/t.i16)\n- Int32 - [`t.i32()`](https://jsr.io/@rametta/array-buffed/doc/~/t.i32)\n- Int64 - [`t.i64()`](https://jsr.io/@rametta/array-buffed/doc/~/t.i64)\n- Float32 - [`t.f32()`](https://jsr.io/@rametta/array-buffed/doc/~/t.f32)\n- Float64 - [`t.f64()`](https://jsr.io/@rametta/array-buffed/doc/~/t.f64)\n\n[Full docs on JSR](https://jsr.io/@rametta/array-buffed/doc)","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Frametta%2Farray-buffed","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Frametta%2Farray-buffed","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Frametta%2Farray-buffed/lists"}