refactor: export types and utilities statically (#951)

Allows users to access these additional types and utilities without having to create an instance of the client first.

resolves #902

BREAKING CHANGE: `ipfs.util.isIPFS` has moved to a static export and should be accessed via `const { isIPFS } = require('ipfs-http-client')`.

The modules available under `ipfs.types.*` have also become static exports.

`ipfs.util.crypto` has been removed as it is not a dependency of `ipfs-http-client` so reduces the bundle size. If you need to use libp2p crypto primitives then please see the [js-libp2p-crypto](https://github.com/libp2p/js-libp2p-crypto) project for info on how to use it in your project.

Finally `ipfs.util.getEndpointConfig` is now a direct instance method, `ipfs.getEndpointConfig`

License: MIT
Signed-off-by: Alan Shaw <[email protected]>

Author: Alan Shaw

README.md

@@ -348,41 +348,32 @@ This means:
 - See https://github.com/ipfs/js-ipfs for details on
   pubsub in js-ipfs
 
-#### Domain data types
+#### Instance utils
 
-A set of data types are exposed directly from the IPFS instance under `ipfs.types`. That way you're not required to import/require the following.
+- `ipfs.getEndpointConfig()`
 
-- [`ipfs.types.Buffer`](https://www.npmjs.com/package/buffer)
-- [`ipfs.types.PeerId`](https://github.com/libp2p/js-peer-id)
-- [`ipfs.types.PeerInfo`](https://github.com/libp2p/js-peer-info)
-- [`ipfs.types.multiaddr`](https://github.com/multiformats/js-multiaddr)
-- [`ipfs.types.multibase`](https://github.com/multiformats/multibase)
-- [`ipfs.types.multihash`](https://github.com/multiformats/js-multihash)
-- [`ipfs.types.CID`](https://github.com/ipld/js-cid)
+Call this on your client instance to return an object containing the `host`, `port`, `protocol` and `api-path`.
 
-#### Extra (util) functions
+#### Static types and utils
 
-Adding to the methods defined by [`interface-ipfs-core`](https://github.com/ipfs/interface-ipfs-core), `js-ipfs-http-client` exposes a set of extra utility methods. These utility functions are scoped behind the `ipfs.util`.
+Aside from the default export, `ipfs-http-client` exports various types and utilities that are included in the bundle:
 
-Complete documentation for these methods is coming with: https://github.com/ipfs/js-ipfs-http-client/pull/305
+- [`isIPFS`](https://www.npmjs.com/package/is-ipfs)
+- [`Buffer`](https://www.npmjs.com/package/buffer)
+- [`PeerId`](https://www.npmjs.com/package/peer-id)
+- [`PeerInfo`](https://www.npmjs.com/package/peer-info)
+- [`multiaddr`](https://www.npmjs.com/package/multiaddr)
+- [`multibase`](https://www.npmjs.com/package/multibase)
+- [`multihash`](https://www.npmjs.com/package/multihash)
+- [`CID`](https://www.npmjs.com/package/cids)
 
-##### Get endpoint configuration (host and port)
+These can be accessed like this, for example:
 
-> `ipfs.util.getEndpointConfig()`
-
-This returns an object containing the `host`, `port` and `protocol`
-
-##### Get libp2p crypto primitives
-
-> `ipfs.util.crypto`
-
-This contains an object with the crypto primitives
-
-##### Get is-ipfs utilities
-
-> `ipfs.util.isIPFS`
-
-This contains an object with the is-ipfs utilities to help identifying IPFS resources
+```js
+const { CID } = require('ipfs-http-client')
+// ...or from an es-module:
+import { CID } from 'ipfs-http-client'
+```
 
 ## Development
 

examples/bundle-browserify/index.js

@@ -6,7 +6,7 @@ var ipfs = IPFS()
 
 function store () {
   var toStore = document.getElementById('source').value
-  ipfs.files.add(Buffer.from(toStore), function (err, res) {
+  ipfs.add(Buffer.from(toStore), function (err, res) {
     if (err || !res) {
       return console.error('ipfs add error', err, res)
     }
@@ -21,7 +21,7 @@ function store () {
 }
 
 function display (hash) {
-  ipfs.files.cat(hash, function (err, res) {
+  ipfs.cat(hash, function (err, res) {
     if (err || !res) {
       return console.error('ipfs cat error', err, res)
     }

examples/bundle-webpack/src/App.js

@@ -28,15 +28,15 @@ class App extends React.Component {
     ipfs.add([Buffer.from(stringToUse)], (err, res) => {
       if (err) throw err
       const hash = res[0].hash
-      this.setState({added_file_hash: hash})
+      this.setState({ added_file_hash: hash })
       ipfs.cat(hash, (err, data) => {
         if (err) throw err
-        this.setState({added_file_contents: data.toString()})
+        this.setState({ added_file_contents: data.toString() })
       })
     })
   }
   render () {
-    return <div style={{textAlign: 'center'}}>
+    return <div style={{ textAlign: 'center' }}>
       <h1>Everything is working!</h1>
       <p>Your ID is <strong>{this.state.id}</strong></p>
       <p>Your IPFS version is <strong>{this.state.version}</strong></p>

src/util/get-endpoint-config.js src/get-endpoint-config.jssrc/util/get-endpoint-config.js renamed to src/get-endpoint-config.js

@@ -1,7 +1,13 @@
 'use strict'
 /* global self */
 
+const isIPFS = require('is-ipfs')
+const CID = require('cids')
 const multiaddr = require('multiaddr')
+const multibase = require('multibase')
+const multihash = require('multihashes')
+const PeerId = require('peer-id')
+const PeerInfo = require('peer-info')
 const loadCommands = require('./utils/load-commands')
 const getConfig = require('./utils/default-config')
 const sendRequest = require('./utils/send-request')
@@ -39,7 +45,6 @@ function ipfsClient (hostOrMultiaddr, port, opts) {
   const requestAPI = sendRequest(config)
   const cmds = loadCommands(requestAPI, config)
   cmds.send = requestAPI
-  cmds.Buffer = Buffer // Added buffer in types (this should be removed once a breaking change is release)
 
   return cmds
 }
@@ -54,3 +59,5 @@ function toHostAndPort (multiaddr) {
 }
 
 module.exports = ipfsClient
+
+Object.assign(module.exports, { isIPFS, Buffer, CID, multiaddr, multibase, multihash, PeerId, PeerInfo })

src/index.js

@@ -1,7 +1,7 @@
 'use strict'
 
 function requireCommands () {
-  const cmds = {
+  return {
     // Files Regular (not MFS)
     add: require('../files-regular/add'),
     addReadableStream: require('../files-regular/add-readable-stream'),
@@ -19,6 +19,9 @@ function requireCommands () {
     lsReadableStream: require('../files-regular/ls-readable-stream'),
     lsPullStream: require('../files-regular/ls-pull-stream'),
 
+    // Files MFS (Mutable Filesystem)
+    files: require('../files-mfs'),
+
     // Block
     block: require('../block'),
     bitswap: require('../bitswap'),
@@ -50,30 +53,14 @@ function requireCommands () {
     refs: require('../refs'),
     repo: require('../repo'),
     stop: require('../stop'),
+    shutdown: require('../stop'),
     stats: require('../stats'),
     update: require('../update'),
     version: require('../version'),
-    types: require('../types'),
-    resolve: require('../resolve')
-  }
-
-  // shutdown is an alias for stop
-  cmds.shutdown = cmds.stop
-
-  // Files MFS (Mutable Filesystem)
-  cmds.files = (send) => {
-    return require('../files-mfs')(send)
+    resolve: require('../resolve'),
+    // ipfs-http-client instance
+    getEndpointConfig: (send, config) => require('../get-endpoint-config')(config)
   }
-
-  cmds.util = (send, config) => {
-    return {
-      getEndpointConfig: require('../util/get-endpoint-config')(config),
-      crypto: require('libp2p-crypto'),
-      isIPFS: require('is-ipfs')
-    }
-  }
-
-  return cmds
 }
 
 function loadCommands (send, config) {

src/utils/load-commands.js

@@ -1,4 +1,4 @@
-/* eslint-env mocha */
+/* eslint-env mocha, browser */
 'use strict'
 
 const multiaddr = require('multiaddr')
@@ -114,7 +114,7 @@ function clientWorks (client, done) {
 }
 
 function expectConfig (ipfs, { host, port, protocol, apiPath }) {
-  const conf = ipfs.util.getEndpointConfig()
+  const conf = ipfs.getEndpointConfig()
   expect(conf.host).to.equal(host || 'localhost')
   expect(conf.port).to.equal(port || '5001')
   expect(conf.protocol).to.equal(protocol || 'http')

test/constructor.spec.js

@@ -0,0 +1,46 @@
+/* eslint-env mocha */
+/* eslint max-nested-callbacks: ["error", 8] */
+'use strict'
+
+const chai = require('chai')
+const dirtyChai = require('dirty-chai')
+const expect = chai.expect
+chai.use(dirtyChai)
+const isNode = require('detect-node')
+
+const ipfsClient = require('../src')
+const f = require('./utils/factory')
+
+describe('.getEndpointConfig', () => {
+  if (!isNode) { return }
+
+  let ipfsd
+  let ipfs
+
+  before(function (done) {
+    this.timeout(20 * 1000) // slow CI
+
+    f.spawn({ initOptions: { bits: 1024, profile: 'test' } }, (err, _ipfsd) => {
+      expect(err).to.not.exist()
+      ipfsd = _ipfsd
+      ipfs = ipfsClient(_ipfsd.apiAddr)
+      done()
+    })
+  })
+
+  after(function (done) {
+    this.timeout(10 * 1000)
+    if (!ipfsd) return done()
+    ipfsd.stop(done)
+  })
+
+  it('should return the endpoint configuration', function () {
+    const endpoint = ipfs.getEndpointConfig()
+
+    expect(endpoint.host).to.equal('127.0.0.1')
+    expect(endpoint.protocol).to.equal('http')
+    expect(endpoint['api-path']).to.equal('/api/v0/')
+    // changes per test run so we just assert it exists.
+    expect(endpoint).to.have.property('port')
+  })
+})

test/endpoint-config.spec.js

@@ -0,0 +1,29 @@
+/* eslint-env mocha, browser */
+'use strict'
+
+const isIPFS = require('is-ipfs')
+const CID = require('cids')
+const multiaddr = require('multiaddr')
+const multibase = require('multibase')
+const multihash = require('multihashes')
+const PeerId = require('peer-id')
+const PeerInfo = require('peer-info')
+const chai = require('chai')
+const dirtyChai = require('dirty-chai')
+const expect = chai.expect
+chai.use(dirtyChai)
+
+const IpfsHttpClient = require('../')
+
+describe('exports', () => {
+  it('should export the expected types and utilities', () => {
+    expect(IpfsHttpClient.isIPFS).to.equal(isIPFS)
+    expect(IpfsHttpClient.Buffer).to.equal(Buffer)
+    expect(IpfsHttpClient.CID).to.equal(CID)
+    expect(IpfsHttpClient.multiaddr).to.equal(multiaddr)
+    expect(IpfsHttpClient.multibase).to.equal(multibase)
+    expect(IpfsHttpClient.multihash).to.equal(multihash)
+    expect(IpfsHttpClient.PeerId).to.equal(PeerId)
+    expect(IpfsHttpClient.PeerInfo).to.equal(PeerInfo)
+  })
+})

test/exports.spec.js

@@ -282,8 +282,4 @@ describe('interface-ipfs-core tests', () => {
       }
     }
   }))
-
-  tests.types(defaultCommonFactory)
-
-  tests.util(defaultCommonFactory, { skip: { reason: 'FIXME currently failing' } })
 })