Install | Usage | Dapp data | Example | API Docs
This is a library which allows you to set, get, and remove private and public data associated with an ethereum account. It can be used to store identity data, user settings, etc. by dapps that use a web3 enabled browser. The data will be retrievable as long as the user has access to the private key for the used ethereum account. The data is encrypted and can not be read by any third party that the user hasn't authorized. There is one shared space for data which all authorized dapps access by default, then there are spaces which dapps have to request explicit consent to access.
Install 3box in your npm project:
$ npm install 3box
Import the 3box module
const Box = require('3box')
Import using the dist build in your html code
<script type="text/javascript" src="../dist/3box.js"></script>
Or optionally by loading remote copy from unpkg CDN.
<!-- The most recent version -->
<script src="https://unpkg.com/3box/dist/3box.js"></script>
<!-- The most recent minified version -->
<script src="https://unpkg.com/3box/dist/3box.min.js"></script>
<!-- Load specific versions by specifying the version as follows -->
<script src="https://unpkg.com/3box@<version>/dist/3box.js"></script>
3Box allows users to create a public profile. In your dapp you might have multiple ethereum addresses that you would like to display a name and picture for. The getProfile
method allows you to retrieve the profile of any ethereum address (if it has one). This is a static method so you can call it directly from the Box object.
const profile = await Box.getProfile('0x12345abcde')
console.log(profile)
To get or modify data in a user's 3Box, first open their 3Box by calling the openBox method. This method prompts the user to authenticate your dapp and returns a promise with a threeBox instance. You can only set, get, and remove data of users that are currently interacting with your dapp. Below ethereumProvider
refers to the object that you would get from web3.currentProvider
, or window.ethereum
.
const box = await Box.openBox('0x12345abcde', ethereumProvider)
When you first open the box in your dapp all data might not be synced from the network yet. You should therefore add a listener using the onSyncDone
method. This will allow you to know when all the users data is available to you. We advice against setting any data before this has happened. However reading data before is fine and encurraged, just remember to check for updates once this callback is fired!
box.onSyncDone(yourCallbackFunction)
You can now use the box
instance object to interact with data in the users private and public data. In both the public and the private data store you use a key
to set a value
.
// use the public profile
// get
const nickname = await box.public.get('name')
console.log(nickname)
// set
await box.public.set('name', 'oed')
// remove
await box.public.remove('name')
// use the private store
// get
const email = await box.private.get('email')
console.log(email)
// set
await box.private.set('email', 'oed@email.service')
// remove
await box.private.remove('email')
A space is a named section of a users 3Box. Each space has both a public and a private store, and for every space you open the user has to grant explicit consent to view that space. This means that if your dapp uses a space that no other dapp uses, only your dapp is allowed to update the data and read the private store of that particular space. To open a space called narwhal
you simply call:
const space = await box.openSpace('narwhal')
Interacting with data in a space is done in the same way as interacting with box.public
and box.private
(see here). For example:
const config = await space.private.get('dapp-config')
WARNING: this is an experimental feature, the api will likely change in the future! Threads are a type of datastore that can be used to communicate between users. For example they could be used to implement a commenting system, among other things. Threads are created within a space and users that join a thread with the same name will be able to communicate.
const thread = await space.joinThread('myThread')
await thread.post('hello world')
const posts = await thread.getPosts()
console.log(posts)
thread.onNewPost(myCallbackFunction)
You can get all posts made in a thread without opening a space.
const posts = await Box.getThread(spaceName, threadName)
console.log(posts)
Dapps can store data about users that relate to only their dapp. However we encurage dapps to share data between them for a richer web3 experience. Therefore we have created Key Conventions in order to facilitate this. Feel free to make a PR to this file to explain to the community how you use 3Box!
You can quickly run and interact with some code by looking at the files in the /example
folder. You run the example with the following command:
$ npm run example:start
This runs a simple server at http://localhost:3000/
that serves the static example/index.html
file. This allows it easily interact with metamask. You can edit the example/index.html
file to try differnt code.
If you only want to fetch profile data from 3Box's profile APIs you can optimize by importing only those functions or the API specific dist file. Since this includes minimal dependencies, file size is ~ 80kb vs 4+mb for the full build.
const { profileGraphQL, getProfile, getProfiles, getVerifiedAccounts } = require('3box/lib/api')
<script src="https://unpkg.com/3box/dist/3box.api.min.js"></script>
Kind: global class
- Box
- new Box()
- instance
- static
- .getProfile(address, opts) ⇒
Object
- .getProfiles(address, opts) ⇒
Object
- .getSpace(address, name, opts) ⇒
Object
- .getThread(space, name, opts) ⇒
Array.<Object>
- .listSpaces(address, opts) ⇒
Object
- .profileGraphQL(query, opts) ⇒
Object
- .getVerifiedAccounts(profile) ⇒
Object
- .openBox(address, ethereumProvider, opts) ⇒
Box
- .isLoggedIn(address) ⇒
Boolean
- .getProfile(address, opts) ⇒
Please use the openBox method to instantiate a 3Box
Kind: instance property of Box
Properties
Name | Type | Description |
---|---|---|
public | KeyValueStore |
access the profile store of the users 3Box |
Kind: instance property of Box
Properties
Name | Type | Description |
---|---|---|
private | KeyValueStore |
access the private store of the users 3Box |
Kind: instance property of Box
Properties
Name | Type | Description |
---|---|---|
verified | Verified |
check and create verifications |
Kind: instance property of Box
Properties
Name | Type | Description |
---|---|---|
spaces | Object |
an object containing all open spaces indexed by their name. |
box.openSpace(name, opts) ⇒ Space
Opens the space with the given name in the users 3Box
Kind: instance method of Box
Returns: Space
- the Space instance for the given space name
Param | Type | Description |
---|---|---|
name | String |
The name of the space |
opts | Object |
Optional parameters |
opts.consentCallback | function |
A function that will be called when the user has consented to opening the box |
opts.onSyncDone | function |
A function that will be called when the space has finished syncing with the pinning node |
Sets the callback function that will be called once when the db is fully synced.
Kind: instance method of Box
Param | Type | Description |
---|---|---|
syncDone | function |
The function that will be called |
Closes the 3box instance and clears local cache. If you call this, users will need to sign a consent message to log in the next time you call openBox.
Kind: instance method of Box
Get the public profile of a given address
Kind: static method of Box
Returns: Object
- a json object with the profile for the given address
Param | Type | Description |
---|---|---|
address | String |
An ethereum address |
opts | Object |
Optional parameters |
opts.addressServer | String |
URL of the Address Server |
opts.ipfs | Object |
A js-ipfs ipfs object |
opts.useCacheService | Boolean |
Use 3Box API and Cache Service to fetch profile instead of OrbitDB. Default true. |
opts.profileServer | String |
URL of Profile API server |
Get a list of public profiles for given addresses. This relies on 3Box profile API.
Kind: static method of Box
Returns: Object
- a json object with each key an address and value the profile
Param | Type | Description |
---|---|---|
address | Array |
An array of ethereum addresses |
opts | Object |
Optional parameters |
opts.profileServer | String |
URL of Profile API server |
Get the public data in a space of a given address with the given name
Kind: static method of Box
Returns: Object
- a json object with the public space data
Param | Type | Description |
---|---|---|
address | String |
An ethereum address |
name | String |
A space name |
opts | Object |
Optional parameters |
opts.profileServer | String |
URL of Profile API server |
Get all posts that are made to a thread.
Kind: static method of Box
Returns: Array.<Object>
- An array of posts
Param | Type | Description |
---|---|---|
space | String |
The name of the space the thread is in |
name | String |
The name of the thread |
opts | Object |
Optional parameters |
opts.profileServer | String |
URL of Profile API server |
Get the names of all spaces a user has
Kind: static method of Box
Returns: Object
- an array with all spaces as strings
Param | Type | Description |
---|---|---|
address | String |
An ethereum address |
opts | Object |
Optional parameters |
opts.profileServer | String |
URL of Profile API server |
GraphQL for 3Box profile API
Kind: static method of Box
Returns: Object
- a json object with each key an address and value the profile
Param | Type | Description |
---|---|---|
query | Object |
A graphQL query object. |
opts | Object |
Optional parameters |
opts.graphqlServer | String |
URL of graphQL 3Box profile service |
Verifies the proofs of social accounts that is present in the profile.
Kind: static method of Box
Returns: Object
- An object containing the accounts that have been verified
Param | Type | Description |
---|---|---|
profile | Object |
A user profile object, received from the getProfile function |
Box.openBox(address, ethereumProvider, opts) ⇒ Box
Opens the 3Box associated with the given address
Kind: static method of Box
Returns: Box
- the 3Box instance for the given address
Param | Type | Description |
---|---|---|
address | String |
An ethereum address |
ethereumProvider | ethereumProvider |
An ethereum provider |
opts | Object |
Optional parameters |
opts.consentCallback | function |
A function that will be called when the user has consented to opening the box |
opts.pinningNode | String |
A string with an ipfs multi-address to a 3box pinning node |
opts.ipfs | Object |
A js-ipfs ipfs object |
opts.addressServer | String |
URL of the Address Server |
Check if the given address is logged in
Kind: static method of Box
Returns: Boolean
- true if the user is logged in
Param | Type | Description |
---|---|---|
address | String |
An ethereum address |
Kind: global class
- KeyValueStore
- new KeyValueStore()
- .log ⇒
Array.<Object>
- .get(key) ⇒
String
- .set(key, value) ⇒
Boolean
- .remove(key) ⇒
Boolean
Please use box.public or box.private to get the instance of this class
Returns array of underlying log entries. In linearized order according to their Lamport clocks. Useful for generating a complete history of all operations on store.
Kind: instance property of KeyValueStore
Returns: Array.<Object>
- Array of ordered log entry objects
Example
const log = store.log
const entry = log[0]
console.log(entry)
// { op: 'PUT', key: 'Name', value: 'Botbot', timeStamp: '1538575416068' }
Get the value of the given key
Kind: instance method of KeyValueStore
Returns: String
- the value associated with the key
Param | Type | Description |
---|---|---|
key | String |
the key |
Set a value for the given key
Kind: instance method of KeyValueStore
Returns: Boolean
- true if successful
Param | Type | Description |
---|---|---|
key | String |
the key |
value | String |
the value |
Remove the value for the given key
Kind: instance method of KeyValueStore
Returns: Boolean
- true if successful
Param | Type | Description |
---|---|---|
key | String |
the key |
Kind: global class
Please use box.openSpace to get the instance of this class
Kind: instance property of Space
Properties
Name | Type | Description |
---|---|---|
public | KeyValueStore |
access the profile store of the space |
Kind: instance property of Space
Properties
Name | Type | Description |
---|---|---|
private | KeyValueStore |
access the private store of the space |
space.joinThread(name, opts) ⇒ Thread
Join a thread. Use this to start receiving updates from, and to post in threads
Kind: instance method of Space
Returns: Thread
- An instance of the thread class for the joined thread
Param | Type | Description |
---|---|---|
name | String |
The name of the thread |
opts | Object |
Optional parameters |
opts.noAutoSub | Boolean |
Disable auto subscription to the thread when posting to it (default false) |
Subscribe to the given thread, if not already subscribed
Kind: instance method of Space
Param | Type | Description |
---|---|---|
name | String |
The name of the thread |
Unsubscribe from the given thread, if subscribed
Kind: instance method of Space
Param | Type | Description |
---|---|---|
name | String |
The name of the thread |
Get a list of all the threads subscribed to in this space
Kind: instance method of Space
Returns: Array.<String>
- A list of thread names
Kind: global class
- Thread
- new Thread()
- .post(message) ⇒
String
- .getPosts(opts) ⇒
Array.<Object>
- .onNewPost(newPostFn)
Please use space.joinThread to get the instance of this class
Post a message to the thread
Kind: instance method of Thread
Returns: String
- The postId of the new post
Param | Type | Description |
---|---|---|
message | Object |
The message |
Returns an array of posts, based on the options. If hash not found when passing gt, gte, lt, or lte, the iterator will return all items (respecting limit and reverse).
Kind: instance method of Thread
Returns: Array.<Object>
- true if successful
Param | Type | Description |
---|---|---|
opts | Object |
Optional parameters |
opts.gt | String |
Greater than, takes an postId |
opts.gte | String |
Greater than or equal to, takes an postId |
opts.lt | String |
Less than, takes an postId |
opts.lte | String |
Less than or equal to, takes an postId |
opts.limit | Integer |
Limiting the number of entries in result, defaults to -1 (no limit) |
opts.reverse | Boolean |
If set to true will result in reversing the result |
Register a function to be called for every new post that is received from the network. The function takes one parameter, which is the post. Note that posts here might be out of order.
Kind: instance method of Thread
Param | Type | Description |
---|---|---|
newPostFn | function |
The function that will get called |
Kind: global class
- Verified
- new Verified()
- .DID() ⇒
String
- .github() ⇒
Object
- .addGithub(gistUrl) ⇒
Object
- .twitter() ⇒
Object
- .addTwitter(claim) ⇒
Object
- .email() ⇒
Object
- .addEmail(claim) ⇒
Object
Please use box.verified to get the instance of this class
Returns the verified DID of the user
Kind: instance method of Verified
Returns: String
- The DID of the user
Verifies that the user has a valid github account Throws an error otherwise.
Kind: instance method of Verified
Returns: Object
- Object containing username, and proof
Adds a github verification to the users profile Throws an error if the verification fails.
Kind: instance method of Verified
Returns: Object
- Object containing username, and proof
Param | Type | Description |
---|---|---|
gistUrl | Object |
URL of the proof |
Verifies that the user has a valid twitter account Throws an error otherwise.
Kind: instance method of Verified
Returns: Object
- Object containing username, proof, and the verifier
Adds a twitter verification to the users profile Throws an error if the verification fails.
Kind: instance method of Verified
Returns: Object
- Object containing username, proof, and the verifier
Param | Type | Description |
---|---|---|
claim | String |
A did-JWT claim ownership of a twitter username |
Verifies that the user has a verified email account Throws an error otherwise.
Kind: instance method of Verified
Returns: Object
- Object containing username, proof, and the verifier
Adds an email verification to the users profile Throws an error if the verification fails.
Kind: instance method of Verified
Returns: Object
- Object containing username, proof, and the verifier
Param | Type | Description |
---|---|---|
claim | String |
A did-JWT claim ownership of an email username |