{"id":20596991,"url":"https://github.com/tradle/chainloader","last_synced_at":"2025-10-25T08:13:58.303Z","repository":{"id":32271757,"uuid":"35846370","full_name":"tradle/chainloader","owner":"tradle","description":"tradle component: parse blockchain transactions for embedded data keys, fetch the data bodies from a keeper","archived":false,"fork":false,"pushed_at":"2016-02-29T17:12:46.000Z","size":44,"stargazers_count":1,"open_issues_count":0,"forks_count":1,"subscribers_count":7,"default_branch":"master","last_synced_at":"2024-04-25T04:21:51.121Z","etag":null,"topics":[],"latest_commit_sha":null,"homepage":"","language":"JavaScript","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":"mit","status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/tradle.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":"LICENSE","code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null}},"created_at":"2015-05-18T22:42:48.000Z","updated_at":"2017-12-14T03:30:26.000Z","dependencies_parsed_at":"2022-07-12T16:09:40.081Z","dependency_job_id":null,"html_url":"https://github.com/tradle/chainloader","commit_stats":null,"previous_names":[],"tags_count":0,"template":false,"template_full_name":null,"repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/tradle%2Fchainloader","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/tradle%2Fchainloader/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/tradle%2Fchainloader/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/tradle%2Fchainloader/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/tradle","download_url":"https://codeload.github.com/tradle/chainloader/tar.gz/refs/heads/master","host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":242231440,"owners_count":20093636,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2022-07-04T15:15:14.044Z","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":[],"created_at":"2024-11-16T08:19:46.879Z","updated_at":"2025-10-25T08:13:53.283Z","avatar_url":"https://github.com/tradle.png","language":"JavaScript","funding_links":[],"categories":[],"sub_categories":[],"readme":"# chainloader\n\n1. Parses blockchain transactions for embedded data keys\n1. Fetches the access-rights files (for non-public files) from a Tradle keeper\n1. Fetches the public/shared object bodies from a Tradle keeper\n1. Returns all collected data and metadata, both in its original (encrypted), and decrypted form.\n\n## Usage\n\n```js\nvar Loader = require('chainloader')\nvar loader = new Loader({\n  prefix: 'tradle',\n  networkName: 'testnet',\n  keeper: keeper, // see tradle/bitkeeper-js\n  lookup: identityLookupFn\n})\n\n// bitcoin.Transaction, or array of them (bitcoinjs-lib)\nloader.load(tx)\n  .then(function (chainedObj) {\n  // chainedObj has\n  // 1. metadata about the chained object,\n  // 2. the associated permission file (if any)\n  // 3. the chained object\n  // \n  // all together it looks like:\n  //    {\n  //      encryptedKey: Buffer, // encrypted DHT key of the file\n  //      key: String,          // decrypted DHT key of the file\n  //      data: Buffer,         // serialized object data\n  //      from: Object,         // result from identityLookupFn\n  //      to: Object,           // result from identityLookupFn\n  //      tx: bitcoin.Transaction, // see bitcoinjs-lib\n  //      txId: String,\n  //      txType: TxData.types[type], // see tradle/tx-data\n  //      txData: Buffer, // data embedded in the tx\n  //      addressesFrom: Array,\n  //      addressesTo: Array,\n  //      // if it's a shared file:\n  //      permission: Permission, // see tradle/permission\n  //      encryptedPermission: Buffer,\n  //      sharedKey: Buffer, // shared key (ECC) of bitcoin tx participants\n  //      permissionKey: String, // the DHT key of the permission file\n  //      encryptedData: Buffer, // encrypted object data\n  //    }\n  })\n\n// to be implemented by you, see tests for an example\n// or you can use tradle/tim which does the whole shebang\nfunction identityLookupFn (fingerprint, cb) {\n  // ...\n  cb(null, {\n    identity: identity,\n    key: key\n  })\n}\n```\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Ftradle%2Fchainloader","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Ftradle%2Fchainloader","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Ftradle%2Fchainloader/lists"}