From 39f994d09298d1d074dbb47085c0d286fad3161e Mon Sep 17 00:00:00 2001 From: Richard Ramos Date: Thu, 30 Jan 2020 14:50:49 -0400 Subject: [PATCH] feat: add contracts docs --- 404.html | 6 +++--- api.html | 6 +++--- apollo-client.html | 6 +++--- assets/js/10.ad0555d0.js | 1 + assets/js/11.2ab88290.js | 1 + assets/js/12.44cb4d70.js | 1 + assets/js/13.8d36d8c0.js | 1 + assets/js/14.16c0ba27.js | 1 + assets/js/15.df26724a.js | 1 + assets/js/16.c6d7927e.js | 1 + assets/js/17.94e619f7.js | 1 + assets/js/8.65c85371.js | 1 + assets/js/app.0eb61ebf.js | 14 ++++++++++++++ getting-started.html | 26 +++++++++++++++++++------- how-it-works.html | 6 +++--- index.html | 6 +++--- integrations-overview.html | 6 +++--- integrations.html | 6 +++--- react.html | 6 +++--- reactive-graphql.html | 6 +++--- redux-observable.html | 6 +++--- redux.html | 6 +++--- tutorial.html | 6 +++--- vue.html | 6 +++--- 24 files changed, 81 insertions(+), 46 deletions(-) create mode 100644 assets/js/10.ad0555d0.js create mode 100644 assets/js/11.2ab88290.js create mode 100644 assets/js/12.44cb4d70.js create mode 100644 assets/js/13.8d36d8c0.js create mode 100644 assets/js/14.16c0ba27.js create mode 100644 assets/js/15.df26724a.js create mode 100644 assets/js/16.c6d7927e.js create mode 100644 assets/js/17.94e619f7.js create mode 100644 assets/js/8.65c85371.js create mode 100644 assets/js/app.0eb61ebf.js diff --git a/404.html b/404.html index c19d12a..fbd9ff9 100644 --- a/404.html +++ b/404.html @@ -11,11 +11,11 @@ - + -

404

Looks like we've got some broken links.
Take me home.
- +

404

How did we get here?
Take me home.
+ diff --git a/api.html b/api.html index 85b8317..57e4f68 100644 --- a/api.html +++ b/api.html @@ -11,7 +11,7 @@ - + @@ -31,7 +31,7 @@ fathom('trackPageview'); Github

API

General

new Subspace(web3Provider [, options])

Constructor.

Parameters

  1. web3Provider - Object: a valid web3 provider.
  2. options - Object (optional): Options used to initialize Subspace +

API

General

new Subspace(web3Provider [, options])

Constructor.

Parameters

  1. web3Provider - Object: a valid web3 provider.
  2. options - Object (optional): Options used to initialize Subspace
    • dbFilename - String (optional): Name of the database where the information will be stored (default 'subspace.db')
    • callInterval - Number (optional): - Interval of time in milliseconds to poll a contract/address to determine changes in state or balance (default: undefined. Obtains data every block. If using a HttpProvider, the default is: 1000)
    • disableSubscriptions - Subspace by default will attempt to use websocket subscriptions if the current provider supports them, otherwise it will use polling because it asumes the provider is an HttpProvider. This functionality can be disabled by passing true to this option. (default: false)

init()

Initializes Subspace

Returns Promise that once it's resolved, will mean that Subspace is available to use

close()

Dispose and perform the cleanup necessary to remove the internal subscriptions and interval timers created by Subspace during its normal execution.

contract(instance|{abi,address})

Adds a track method to the web3 contract objects. You can obtain this functionality by passing a web3.eth.Contract instance, or the abi and address of your contract

Returns web3.eth.Contract object enhanced with .track() functions for methods and events.

Contract methods

myContract.events.MyEvent.track([options])

Track a contract event.

Parameters

  1. options - Object (optional): web3 filter options object to limit the number of events based on a block number range, or indexed filters
    • filter - Object (optional): Lets you filter events by indexed parameters, e.g. {filter: {myNumber: [12,13]}} means all events where "myNumber" is 12 or 13.
    • fromBlock - Number (optional): The block number from which to get events on.
    • toBlock - Number (optional): The block number to get events up to (Defaults to "latest")
    • topics - Array (optional): This allows you to manually set the topics for the event filter. If given the filter property and event signature, (topic[0]) will not be set automatically.

Returns RxJS Observable which will stream the event returnValues.

myContract.methods.myMethod([param1[, ...]]).track([callOptions])

Track a constant function / contract state variable on each block mined, or depending on the callInterval option used during Subspace initialization.

Parameters

  1. callOptions - Object (optional): The options used for calling.
    • from - String (optional): The address the call “transaction” should be made from.
    • gasPrice - String (optional): The gas price in wei to use for this call “transaction”.
    • gas - Number (optional): The maximum gas provided for this call “transaction” (gas limit).

Returns RxJS Observable which will stream the function / variable values. Data type will depend on the contract function invoked.

myContract.trackBalance(address [, tokenAddress])

Track a contract's balance changes for an address on each block mined, or depending on the callInterval option used during Subspace initialization.

Parameters

  1. address - String: The address to get the balance of.
  2. tokenAddress - String (optional): If you want to track the balance for an ERC20 contract, here you can specify the token address. Otherwise, Only ETH balances will be returned.

Returns RxJS Observable which will stream a string containing the address balance.

Low level API for data tracking

These are used in case you don't want to decorate your web3 contract objects, or if you want to track the balance for an specific address.

trackEvent(contractObject, eventName [, options])

Track a contract event.

Parameters

  1. contractObject - web3.eth.Contract: An already initialized contract object pointing to an address and containing a valid ABI.
  2. eventName - String: The name of the event to subscribe.
  3. options - Object (optional): web3 filter options object to limit the number of events based on a block number range, or indexed filters @@ -40,6 +40,6 @@ fathom('trackPageview');
    • address - String|Array (optional): An address or a list of addresses to only get logs from particular account(s).
    • fromBlock - Number (optional): The block number from which to get events on.
    • topics - Array (optional): An array of values which must each appear in the log entries. The order is important, if you want to leave topics out use null, e.g. [null, '0x00...']. You can also pass another array for each topic with options for that topic e.g. [null, ['option1', 'option2']].
  4. abi - Array (optional): Array containing the ABI for the inputs of the logs received. It will automatically decode the logs using this ABI instead of returning the hexadecimal data.

Returns RxJS Observable which will stream the logs. If the inputs ABI is included in the call, the logs will be automatically decoded.

←

- + diff --git a/apollo-client.html b/apollo-client.html index 9d100b8..5d8a14d 100644 --- a/apollo-client.html +++ b/apollo-client.html @@ -11,7 +11,7 @@ - + @@ -31,7 +31,7 @@ fathom('trackPageview'); Github

apollo-client

To use Subspace with apollo-client, a composed ApolloLink must be defined using the apollo-link-rxjs and reactive-graphl npm packages. Notice that the addTypename option of InMemoryCache must be set false.

import { ApolloClient } from "apollo-client";
+

apollo-client

To use Subspace with apollo-client, a composed ApolloLink must be defined using the apollo-link-rxjs and reactive-graphl npm packages. Notice that the addTypename option of InMemoryCache must be set false.

import { ApolloClient } from "apollo-client";
 import { InMemoryCache } from "apollo-cache-inmemory";
 import { ApolloLink } from "apollo-link";
 import { rxjs as rxJsLink } from "apollo-link-rxjs";
@@ -95,6 +95,6 @@ fathom('trackPageview');
       ←
        Tutorial→
- + diff --git a/assets/js/10.ad0555d0.js b/assets/js/10.ad0555d0.js new file mode 100644 index 0000000..badb77d --- /dev/null +++ b/assets/js/10.ad0555d0.js @@ -0,0 +1 @@ +(window.webpackJsonp=window.webpackJsonp||[]).push([[10],{218:function(t,s,a){"use strict";a.r(s);var n=a(0),e=Object(n.a)({},(function(){var t=this,s=t.$createElement,a=t._self._c||s;return a("ContentSlotsDistributor",{attrs:{"slot-key":t.$parent.slotKey}},[a("h1",{attrs:{id:"getting-started"}},[a("a",{staticClass:"header-anchor",attrs:{href:"#getting-started","aria-hidden":"true"}},[t._v("#")]),t._v(" Getting Started")]),t._v(" "),a("h2",{attrs:{id:"installation"}},[a("a",{staticClass:"header-anchor",attrs:{href:"#installation","aria-hidden":"true"}},[t._v("#")]),t._v(" Installation")]),t._v(" "),a("p",[a("strong",[t._v("Subspace")]),t._v(" can be used in browser, node and native script environments. 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$page(){return this.__page?this.__page:function(t,e){for(let n=0;nn||(t.hash?!Uo.$vuepress.$get("disableScrollBehavior")&&{selector:t.hash}:{x:0,y:0})});!function(t){t.beforeEach((e,n,r)=>{if(ss(t,e.path))r();else if(/(\/|\.html)$/.test(e.path))if(/\/$/.test(e.path)){const n=e.path.replace(/\/$/,"")+".html";ss(t,n)?r(n):r()}else r();else{const n=e.path+"/",o=e.path+".html";ss(t,o)?r(o):ss(t,n)?r(n):r()}})}(n);const r={};try{ns.forEach(e=>{"function"==typeof e&&e({Vue:Uo,options:r,router:n,siteData:es,isServer:t})})}catch(t){console.error(t)}return{app:new Uo(Object.assign(r,{router:n,render:t=>t("div",{attrs:{id:"app"}},[t("router-view",{ref:"layout"}),t("div",{class:"global-ui"},rs.map(e=>t(e)))])})),router:n}}(!1);window.__VUEPRESS__={version:"1.1.0",hash:"c3d8ebc"},ds.onReady(()=>{ps.$mount("#app")})}]); \ No newline at end of file diff --git a/getting-started.html b/getting-started.html index 029db2d..6da301e 100644 --- a/getting-started.html +++ b/getting-started.html @@ -11,7 +11,7 @@ - + @@ -31,7 +31,7 @@ fathom('trackPageview'); Github

Getting Started

Installation

Subspace can be used in browser, node and native script environments. To get started install the package @embarklabs/subspace using npm or yarn by executing this command in your project directory:

# Using npm
+

Getting Started

Installation

Subspace can be used in browser, node and native script environments. To get started install the package @embarklabs/subspace using npm or yarn by executing this command in your project directory:

# Using npm
 npm install --save @embarklabs/subspace
 
 # Using yarn
@@ -43,13 +43,25 @@ fathom('trackPageview');
 const Subspace = require('@embarklabs/subspace');
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Connecting to a web3 provider

To interact with the EVM, Subspace requires a valid Web3 provider.

const subspace = new Subspace(web3.currentProvider);
 await subspace.init();
-
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In addition to the provider, Subspace also accepts an options object with settings that can change its behavior:

  • dbFilename - Name of the database where the information will be stored (default 'subspace.db')
  • callInterval - Interval of time in milliseconds to query a contract/address to determine changes in state or balance (default: undefined. Obtains data every block).
  • disableSubscriptions - Subspace by default will attempt to use websocket subscriptions if the current provider supports them, otherwise it will use polling because it asumes the provider is an HttpProvider. This functionality can be disabled by passing true to this option. (default: false)tionality can be forced by passing true to this option. (default: undefined)

Reacting to data

Once it's initialized, you can use Subspace's methods to track the contract state, events and balances. These functions return RxJS Observables which you can subscribe to, and obtain and transform the observed data via operators.

What is an Observable?

The Observable type can be used to model push-based data sources such as DOM events, timer intervals, and sockets. In addition, observables are:

  • Compositional: Observables can be composed with higher-order combinators.
  • Lazy: Observables do not start emitting data until an observer has subscribed.

Further read

Tracking state

You can track changes to a contract state variable, by specifying the view function and arguments to call and query the contract.

const stateObservable$ = Contract.methods.functionName().track();
-
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Tracking the public variables of a contract

State variables implicity create a view function when they're defined as public. The functionName would be the same as the variable name, and functionArgs would have a value when the type is a mapping or array (since these require an index value to query them).

Example:

const productTitle$ = ProductList.methods.products(0).track().map("title");
+
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In addition to the provider, Subspace also accepts an options object with settings that can change its behavior:

  • dbFilename - Name of the database where the information will be stored (default 'subspace.db')
  • callInterval - Interval of time in milliseconds to query a contract/address to determine changes in state or balance (default: undefined. Obtains data every block).
  • disableSubscriptions - Subspace by default will attempt to use websocket subscriptions if the current provider supports them, otherwise it will use polling because it asumes the provider is an HttpProvider. This functionality can be disabled by passing true to this option. (default: false)tionality can be forced by passing true to this option. (default: undefined)

Enhancing your contract objects

Subspace provides a method to enhance your web3 Contract objects: subspace.contract(instance|{abi,address}). Calling this method will return a new contract object decorated with a .track() method for your contract view functions and events.

const myRxContract = subspace.contract(myContractInstance);
+
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You can also instantiate a contract directly by passing the contract ABI and its address:

const myRXContract = subspace.contract({abi: ...., address: '0x1234...CDEF'})
+
1

Reacting to data

Once it's initialized, you can use Subspace's methods to track the contract state, events and balances. These functions return RxJS Observables which you can subscribe to, and obtain and transform the observed data via operators.

What is an Observable?

The Observable type can be used to model push-based data sources such as DOM events, timer intervals, and sockets. In addition, observables are:

  • Compositional: Observables can be composed with higher-order combinators.
  • Lazy: Observables do not start emitting data until an observer has subscribed.

Further read

Tracking state

You can track changes to a contract state variable, by specifying the view function and arguments to call and query the contract.

const stateObservable$ = Contract.methods.functionName(functionArgs).track();
+
1

Tracking the public variables of a contract

State variables implicity create a view function when they're defined as public. The functionName would be the same as the variable name, and functionArgs will have a value when the type is a mapping or array (since these require an index value to query them).

Example:

const productTitle$ = ProductList.methods.products(0).track().map("title");
 productTitle$.subscribe((title) => console.log("product title is " + title));
-
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The subscriber will be triggered whenever the title changes

Tracking events

You can track events and react to their returned values.

const eventObservable$ = Contract.event.eventName().track();
+
+
+// Alternative using Subspace low level API
+const producTitle$ = subspace.trackProperty(ProductList, "products", [0], {from: web3.eth.defaultAccount});
+...
+
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The subscription will be triggered whenever the title changes

Tracking events

You can track events and react to their returned values.

const eventObservable$ = Contract.event.eventName().track();
1

Example:

const rating$ = Product.events.Rating().track().map("rating")).pipe(map(x => parseInt(x)));
 rating$.subscribe((rating) => console.log("rating received: " + rating));
-
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Event Sourcing

You can easily do event sourcing with subspace.

For e.g: if you needed to get the average rating of the last 5 events:

import { $average, $latest } from "@embarklabs/subspace";
+
+
+// Alternative using Subspace low level API
+const rating$ = subspace.trackEvent(Product, "Rating", {fromBlock: 0});
+...
+
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Event Sourcing

You can easily do event sourcing with subspace.

For e.g: if you needed to get the average rating of the last 5 events:

import { $average, $latest } from "@embarklabs/subspace";
 
 const rating$ = Product.events.Rating().track().map("rating")).pipe(map(x => parseInt(x)));
 
@@ -80,6 +92,6 @@ subscription.How it works? Overview→
- + diff --git a/how-it-works.html b/how-it-works.html index a88791c..79d5ec2 100644 --- a/how-it-works.html +++ b/how-it-works.html @@ -11,7 +11,7 @@ - + @@ -31,13 +31,13 @@ fathom('trackPageview'); Github

How it works?

Setup

First Usage - Setup

  1. A ÐApp requests Subspace to track an event, property, or balance.
  2. Subspace creates a observable for that event, and a web3 subscription to retrieve events from the chain
  3. The ÐApp subscribes to the observable to receive events.

Receiving events

First Usage - Receiving events +

How it works?

Setup

First Usage - Setup

  1. A ÐApp requests Subspace to track an event, property, or balance.
  2. Subspace creates a observable for that event, and a web3 subscription to retrieve events from the chain
  3. The ÐApp subscribes to the observable to receive events.

Receiving events

First Usage - Receiving events Depending on the filter parameters used to track the events, once an event is found, it is stored in localStorage and it is also pushed to the observable which delivers it to the ÐApp subscription.

Tracking already known events

After restarting the ÐApp, either by executing it again in case of a console application or refreshing the browser the behavior of Subspace will change: Second Usage - Setup

  1. The Dapp will request Subspace to track an event it already knows, creating an observable and subscription for that event
  2. It will retrieve events that were previously stored in localStorage and deliver them to the DApp subscription, avoiding having to query the chain for the old events again.

Second Usage - Receiving events The web3 subscription created previously will start from the last known block instead of beginning from scratch. New events will be delivered normally from this step

← Getting Started→

- + diff --git a/index.html b/index.html index 7b7a9e5..e201fdb 100644 --- a/index.html +++ b/index.html @@ -11,7 +11,7 @@ - + @@ -31,7 +31,7 @@ fathom('trackPageview'); Github
hero

+

hero

Reactive ÐApp Development

Get Started

Automatic Syncing

Subspace takes care of syncing under the hood, syncing exactly what you need when you need it. It saves the state to a local database ensuring the DApp always syncs from the last known point even after reloading the DApp.

Reactive

Subspace embraces reactive programming with RxJS. It provides methods to track and subscribe to events, contract state & balances, and react to changes via observables.

Framework Agnostic

Subspace is framework agnostic and integrates well with your favourite frameworks, from React to Angular. It works in the browser and in nodejs.

Event Tracking & Event Sourcing

You can track events and react to their values. With Subspace observables doing event sourcing is easy. @@ -85,6 +85,6 @@ ReactDOM.1
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MIT Licensed | Subspace is part of the Status Network
- + diff --git a/integrations-overview.html b/integrations-overview.html index 2c8a966..a414efc 100644 --- a/integrations-overview.html +++ b/integrations-overview.html @@ -11,7 +11,7 @@ - + @@ -31,10 +31,10 @@ fathom('trackPageview'); Github

Integrations with other frameworks

Subspace does not force you to change the architecture of your dApps, making it easy to use on existing projects. In this section you can find some examples and tips on how to integrate Subspace with various frontend frameworks and libraries

+

Integrations with other frameworks

Subspace does not force you to change the architecture of your dApps, making it easy to use on existing projects. In this section you can find some examples and tips on how to integrate Subspace with various frontend frameworks and libraries

← React→

- + diff --git a/integrations.html b/integrations.html index 3967c50..d4a22e2 100644 --- a/integrations.html +++ b/integrations.html @@ -11,7 +11,7 @@ - + @@ -31,7 +31,7 @@ fathom('trackPageview'); Github
- +
+ diff --git a/react.html b/react.html index 8c5566d..7b1f911 100644 --- a/react.html +++ b/react.html @@ -11,7 +11,7 @@ - + @@ -31,7 +31,7 @@ fathom('trackPageview'); Github

React

We provide a higher-order component to connect to enhance presentational components to react to any observable (not limited to those generated by Subspace).

Usage

import { observe } from '@embarklabs/subspace/react';
+

React

We provide a higher-order component to connect to enhance presentational components to react to any observable (not limited to those generated by Subspace).

Usage

import { observe } from '@embarklabs/subspace/react';
 
 const ObserverComponent = observe(WrappedComponent);
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This enhanced component will subscribe to any observable property it receives when the component is mounted and automatically unsubscribe when the component is unmounted.

Example

This example is available in Github

MyComponentObserver.js

import React from "react";
@@ -109,6 +109,6 @@ ReactDOM.ren
       ←
        Vue→
- + diff --git a/reactive-graphql.html b/reactive-graphql.html index e54ab30..dc0d76e 100644 --- a/reactive-graphql.html +++ b/reactive-graphql.html @@ -11,7 +11,7 @@ - + @@ -31,7 +31,7 @@ fathom('trackPageview'); Github

reactive-graphql

Using reactive-graphql you can execute GraphQL queries against Subspace observables after you create your own type definitions and resolvers.

Example

const Subspace = require('@embarklabs/subspace');
+

reactive-graphql

Using reactive-graphql you can execute GraphQL queries against Subspace observables after you create your own type definitions and resolvers.

Example

const Subspace = require('@embarklabs/subspace');
 const MyContract = require('./MyContract');
 const { pluck } = require('rxjs/operators');
 const { makeExecutableSchema } = require("graphql-tools");
@@ -85,6 +85,6 @@ fathom('trackPageview');
       ←
        apollo-client→
- + diff --git a/redux-observable.html b/redux-observable.html index 1cf2bfc..7edd1cf 100644 --- a/redux-observable.html +++ b/redux-observable.html @@ -11,7 +11,7 @@ - + @@ -31,7 +31,7 @@ fathom('trackPageview'); Github

redux-observable

redux-observables can be used to manage side effects via Epics (their core primitive to receive and create stream of actions). Subspace can be configured inside these epics.

It's recommended to compose these epics by using mergeMap or switchMap operators.

Here's an example on how to use Subspace to subscribe to an Event when the action SOME_ACTION is dispatched, and then it will trigger myAction when the observable emits a value.

// ...
+

redux-observable

redux-observables can be used to manage side effects via Epics (their core primitive to receive and create stream of actions). Subspace can be configured inside these epics.

It's recommended to compose these epics by using mergeMap or switchMap operators.

Here's an example on how to use Subspace to subscribe to an Event when the action SOME_ACTION is dispatched, and then it will trigger myAction when the observable emits a value.

// ...
 
 const myEpic = action$ =>
   action$.pipe(
@@ -50,6 +50,6 @@ fathom('trackPageview');
       ←
        reactive-graphql→
- + diff --git a/redux.html b/redux.html index 15189e2..9db74a9 100644 --- a/redux.html +++ b/redux.html @@ -11,7 +11,7 @@ - + @@ -31,7 +31,7 @@ fathom('trackPageview'); Github

redux

Subspace can be used with redux. Subspace returns Observables, which you can subscribe to, and if this subscription has access to the redux store, it will be able to dispatch actions when the observable emits an event.

Example

Here's a simple example on how to setup Subspace to work with redux:

This example is available in Github

index.js

import store from './store';
+

redux

Subspace can be used with redux. Subspace returns Observables, which you can subscribe to, and if this subscription has access to the redux store, it will be able to dispatch actions when the observable emits an event.

Example

Here's a simple example on how to setup Subspace to work with redux:

This example is available in Github

index.js

import store from './store';
 import web3 from './web3';
 import Subspace from '@embarklabs/subspace';
 import { myAction } from './actions';
@@ -75,6 +75,6 @@ fathom('trackPageview');
       ←
        redux-observable→
- + diff --git a/tutorial.html b/tutorial.html index 0c92fcb..5f4cb82 100644 --- a/tutorial.html +++ b/tutorial.html @@ -11,7 +11,7 @@ - + @@ -31,10 +31,10 @@ fathom('trackPageview'); Github

Creating a reactive ÐApp with React and Subspace

See example DApp at https://github.com/embark-framework/subspace/tree/master/examples/react-example1

+

Creating a reactive ÐApp with React and Subspace

See example DApp at https://github.com/embark-framework/subspace/tree/master/examples/react-example1

← API→

- + diff --git a/vue.html b/vue.html index d34a569..6e6ab5e 100644 --- a/vue.html +++ b/vue.html @@ -11,7 +11,7 @@ - + @@ -31,7 +31,7 @@ fathom('trackPageview'); Github

Vue

Vue provides the official npm package vue-rx that provides RxJS integration, which simplifies the use of Subspace with Vue.js

Example

This example is available in Github

MyComponent.vue

<template>
+

Vue

Vue provides the official npm package vue-rx that provides RxJS integration, which simplifies the use of Subspace with Vue.js

Example

This example is available in Github

MyComponent.vue

<template>
   <ul v-if="!!eventData$">
     <li><b>someValue: </b> {{eventData$.someValue}}</li>
     <li><b>anotherValue: </b> {{eventData$.anotherValue}}</li>
@@ -94,6 +94,6 @@ fathom('trackPageview');
       ←
        redux→
- +