DEPRECATED Please use ipld/js-ipld-dag-pb and ipld/js-ipld-resolver instead
JavaScript Implementation of the DAGService and DAGNode data structure
$ npm i ipfs-merkle-dag
┌────────────────────┐
│ DAGService │
└────────────────────┘
│
▼
┌────────────────────┐
│ BlockService │
└────────────────────┘
DAGService - The DAGService offers an interface to interact directly with a MerkleDAG object (composed by one or more DAGNodes that are linked), using the BlockService to store and fetch the DAGNodes as it needs them
A DAGNode and DAGLink are data structures made available on this module.
const ipfsMDAG = require('ipfs-merkle-dag')
// then, to access each of the components
ipfsMDAG.DAGService
ipfsMDAG.DAGNode
ipfsMDAG.DAGLink
Create a new DAGNode
var node = new ipfsMDAG.DAGNode([<data>, <[links]>])
creates a link on node A to node B by using node B to get its multihash
creates a link on node A to node B by using directly node B multihash
updates a link on the node. caution this method returns a copy of the MerkleDAG node
removes a link from the node by name
removes a link from the node by the hash of the linked node
creates a copy of the MerkleDAG Node
(property) size of the node, in bytes
(property) an array of
DAGLink
s belonging to the node
returns the multihash (default: sha2-256)
returns a protobuf serialized version, compatible with go-ipfs MerkleDAG
deserializes a node encoded using protobuf
used internally
used internally
Create a new DAGLink
var link = new ipfsMDAG.DAGLink(<name>, <size>, <hash>)
stores the node
stores nodes using a writable pull-stream
fetches a node by its multihash
fetches a node as a pull-stream
fetches a node and all of its links (if possible)
fetches a node and all of its links (if possible) as pull-stream
deletes a node
MIT © IPFS