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Partition bytes into several Hypercore feeds\n\n## Installation\n\n```sh\n$ npm install hypercore-multipart\n```\n\n## Example\n\n```js\nconst multipart = require('hypercore-multipart')\nconst Corestore = require('corestore')\nconst fs = require('fs')\n\nconst corestore = new Corestore(ram)\n\nfs.open('/path/to/file', (err, fd) =\u003e {\n  multipart({ read, pageSize: 5 * 1024 * 1024, bufferSize: 4096 }, (err, parts) =\u003e {\n    // `parts` is an array of hypercores with a byteLength at most `pageSize`\n  })\n\n  function read(offset, length, callback) {\n    const buffer = Buffer.alloc(length)\n    fs.read(fd, buffer, 0, length, offset, (err) =\u003e callback(err, buffer))\n  }\n})\n```\n\n## API\n\n### `state = multipart(opts, callback)`\n\nReads bytes from a source partitioning chunks into Hypercore feeds where\ncalling `callback(err, parts)` with an error if one occurs or `parts`,\nan array of hypercore feeds. `opts` can be:\n\n```js\n{\n  bufferSize: 4096, // how big the read buffers should be\n  pageSize: 10 * 1024 * 1024, // how big the hypercore feeds should be\n  offset: 0, // the initial offset to start reading at\n\n  corestore: null, // a corestore instance for hypercore creation\n  masterKey: crypto.randomBytes(32), // the master key for key derivation\n  namespace: 'multipart', // the namespace for key derivation\n\n  read: null, // a function that accepts an offset, length, and callback to read bytes from a source\n  stat: null, // a function that explicitly resolves the size of the source\n  onpage(page, hypercore), // a function that is called upon cycling to a new page (hypercore)\n}\n```\n\n#### `state.bufferSize`\n\nThe read buffer size for the multipart state.\n\n#### `state.pageSize`\n\nThe size for each page (hypercore feed) for the multipart state.\n\n#### `state.offset`\n\nThe current read offset for the multipart state.\n\n#### `state.blocks`\n\nThe number of blocks in the multipart state.\n\n#### `state.page`\n\nThe current page of the multipart state.\n\n#### `state.stats`\n\nStats (if available) for the multipart state.\n\n#### `state.masterKey`\n\nThe master key for the multipart state.\n\n## License\n\nMIT\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Flittle-core-labs%2Fhypercore-multipart","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Flittle-core-labs%2Fhypercore-multipart","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Flittle-core-labs%2Fhypercore-multipart/lists"}