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feat: extract ipld formats #14

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Merged
fsdiogo merged 1 commit into from
Jan 28, 2019
Merged

feat: extract ipld formats #14

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30 changes: 10 additions & 20 deletions src/bundles/explore.js
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Original file line number Diff line number Diff line change
Expand Up @@ -3,20 +3,11 @@ import { createAsyncResourceBundle, createSelector } from 'redux-bundler'
import resolveIpldPath from '../lib/resolve-ipld-path'
import parseIpldPath from '../lib/parse-ipld-path'

// All known IPLD formats
import ipldBitcoin from 'ipld-bitcoin'
import ipldDagCbor from 'ipld-dag-cbor'
import ipldDagPb from 'ipld-dag-pb'
import { ethAccountSnapshot, ethBlock, ethBlockList, ethStateTrie,
ethStorageTrie, ethTxTrie, ethTx } from 'ipld-ethereum'
import ipldGit from 'ipld-git'
import ipldRaw from 'ipld-raw'
import ipldZcash from 'ipld-zcash'

// Find all the nodes and path boundaries traversed along a given path
const makeBundle = (fetchIpld) => {
// Lazy load ipld because it is a large dependency
let IpldResolver = null
let ipldFormats = null

const bundle = createAsyncResourceBundle({
name: 'explore',
Expand All @@ -30,9 +21,12 @@ const makeBundle = (fetchIpld) => {
const { cidOrFqdn, rest } = pathParts
try {
if (!IpldResolver) {
IpldResolver = await fetchIpld()
const { ipld, formats } = await fetchIpld()

IpldResolver = ipld
ipldFormats = formats
}
const ipldGet = makeIpldResolver(IpldResolver, getIpfs)
const ipldGet = makeIpldResolver(IpldResolver, ipldFormats, getIpfs)
// TODO: handle ipns, which would give us a fqdn in the cid position.
const cid = new Cid(cidOrFqdn)
const {
Expand Down Expand Up @@ -118,19 +112,15 @@ function ensureLeadingSlash (str) {
return `/${str}`
}

function makeIpldResolver (IpldResolver, getIpfs) {
return ipldGet.bind(null, IpldResolver, getIpfs)
function makeIpldResolver (IpldResolver, ipldFormats, getIpfs) {
return ipldGet.bind(null, IpldResolver, ipldFormats, getIpfs)
}

export function ipldGet (IpldResolver, getIpfs, cid, path, options) {
export function ipldGet (IpldResolver, ipldFormats, getIpfs, cid, path, options) {
return new Promise((resolve, reject) => {
const ipld = new IpldResolver({
blockService: getIpfs().block,
formats: [
ipldBitcoin, ipldDagCbor, ipldDagPb, ethAccountSnapshot, ethBlock,
ethBlockList, ethStateTrie, ethStorageTrie, ethTxTrie, ethTx,
ipldGit, ipldRaw, ipldZcash
]
formats: ipldFormats
})
ipld.get(new Cid(cid), path, options, (err, res) => {
if (err) return reject(err)
Expand Down