Node.js Interactive
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Have you ever been stuck downloading a module you already have? Have you ever been stuck without internet, unable to npm install when all the modules you need are stored in your coworkers' computers in the same LAN? Well no more! With the IPFS companion for npm, you get (a) distributed discovery: install modules seamlessly from any other computer you can reach; (b) cryptographic versioning: never install the same version twice; (c) free deduplication: don't download or store the same things multiple times. npm-over-ipfs uses IPFS (the InterPlanetary Filesystem), a new file distribution protocol. IPFS is like Git meets Bittorrent; it is perfect for Node.js modules, it enables devs to have local caches, work offline or work in LANs, and use modules present in nearby machines.
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Node.js Interactive
- 1. Stellar Module Management David Dias, Protocol Labs
- 5. • Module Management • npm • The Web • IPFS, the InterPlanetary Filesystem
- 6. • Module Management • npm • The Web • IPFS, the InterPlanetary Filesystem • 🌠
- 9. • What interfaces are available • Language biased • Reusable code, library or project all together Scope
- 10. • Share it • Make a webpage for the project • Register it in a public listing Discover a module
- 11. • Use a tool • Download from a webpage • Sneaker net • Email Transport
- 12. • How to deal with constant new • Notify users • Avoid breaking compatibility • Cope with demand • Security patches Update
- 13. • How to store these modules • Storage space and bandwidth concerns Structure
- 14. • Check what I’m running Integrity
- 15. • Who owns it • Who is allowed to change it • Where can it run • Where can it be accessible Ownership
- 16. • Scope • Discovery • Transport • Update • Activity • Structure • Integrity • Ownership
- 19. • Storage is cheap • Bandwidth is virtually “free”
- 37. a protocol to upgrade the web
- 39. SFS web DHT+
- 41. routing network exchange merkledag naming applicationsThe Stack Defining the Data Moving the Data Using the Data IPLD - IP Linked Data libp2p IPNS - IP Naming System
- 43. { name: ‘martian’ … } { user: ??? } hash( ) -> KQsXSobGtbNhF
- 44. { name: ‘martian’ age: 9001 … } { user: KQsXSobGtbNhF … } hash( ) -> KQsXSobGtbNhF MERKLE LINK
- 51. cvs/svn
- 52. cvs/svn
- 53. cvs/svn
- 59. MerkleDAG in IPFS data forms a dag it’s called the merkle dag because the links are hashes
- 60. blob, tree, commit unix files and dirs any data structures are represented as dags blocks, txns, wallets kv-stores
- 65. /ipns/example.com/foo/bar/baz.png /ipfs/QmW98pJrc6FZ6/foo/bar/baz.png content path MUTABILITY IPNS - InterPlanetary Naming System
- 66. /ipns/QmYJPtosPTfoC/foo/bar/baz.png /ipfs/QmW98pJrc6FZ6/foo/bar/baz.png content path /ipns/example.com/foo/bar/baz.png IPNS - InterPlanetary Naming System MUTABILITY
- 72. DHT - Distributed Hash Table
- 73. DHT are the Holy Grail of P2P Networks
- 74. 1 5 6 10 50 55
- 75. 1 10 12 20 30 50 54 58 70 88 81 83 88 90 92 95 97 99 101105 300411 500
- 76. 1 10 12 20 30 50 54 58 70 88 81 83 88 90 92 95 97 99 101105 300411 500
- 77. 1 10 12 20 30 50 54 58 70 88 81 83 88 90 92 95 97 99 101105 300411 500 hash( ) = 91
- 78. 1 10 12 20 30 50 54 58 70 88 81 83 88 90 92 95 97 99 101105 300411 500 hash( ) = 91
- 79. 1 10 12 20 30 50 54 58 70 88 81 83 88 90 92 95 97 99 101105 300411 500 Who has fim , which hash( ) = 91?
- 80. What you get ✓ Discovery (through IPNS) ✓ Integrity (through cryptographic hashing) ✓ Activity (the more downloads, the merrier) ✓ Structure (download things at most once) ✓ Transport (stream from every peer that has the module) ✓ Update (just sync the parts that are changed) ✓ Ownership (private clusters, IPNS records signed,
- 82. registry-mirror npm i <insert-module-name> –-registry=<IPFS bridge>
- 85. LXJS 2013 - http://yearbook.lxjs.org
- 87. Thank you! David Dias - http://daviddias.me IPFS http://ipfs.io Protocol Labs http://ipn.io