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<span style="font-family:Wingdings">w</span> Sep 14, 2018
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|
|
</div>
|
|
|
|
<div markdown="span" class="article-content">
|
|
|
|
<p class="no_toc">These FAQs are intended for developers of Blockstack.</p>
|
|
|
|
<ul id="markdown-toc">
|
|
<li><a href="#im-a-web-developer--can-i-build-on-blockstack" id="markdown-toc-im-a-web-developer--can-i-build-on-blockstack">I’m a Web developer. Can I build on Blockstack?</a></li>
|
|
<li><a href="#im-a-non-web-developer--can-i-build-on-blockstack" id="markdown-toc-im-a-non-web-developer--can-i-build-on-blockstack">I’m a non-Web developer. Can I build on Blockstack?</a></li>
|
|
<li><a href="#whats-the-difference-between-a-web-app-and-a-blockstack-app" id="markdown-toc-whats-the-difference-between-a-web-app-and-a-blockstack-app">What’s the difference between a Web app and a Blockstack app?</a></li>
|
|
<li><a href="#do-i-need-to-learn-any-new-languages-or-frameworks" id="markdown-toc-do-i-need-to-learn-any-new-languages-or-frameworks">Do I need to learn any new languages or frameworks?</a></li>
|
|
<li><a href="#how-does-my-web-app-interact-with-blockstack" id="markdown-toc-how-does-my-web-app-interact-with-blockstack">How does my Web app interact with Blockstack?</a></li>
|
|
<li><a href="#what-does-blockstackjs-do" id="markdown-toc-what-does-blockstackjs-do">What does <code class="highlighter-rouge">blockstack.js</code> do?</a></li>
|
|
<li><a href="#how-do-i-use-blockstackjs" id="markdown-toc-how-do-i-use-blockstackjs">How do I use <code class="highlighter-rouge">blockstack.js</code>?</a></li>
|
|
<li><a href="#how-can-i-look-up-names-and-profiles" id="markdown-toc-how-can-i-look-up-names-and-profiles">How can I look up names and profiles?</a></li>
|
|
<li><a href="#how-can-i-read-my-public-app-data-without-blockstackjs" id="markdown-toc-how-can-i-read-my-public-app-data-without-blockstackjs">How can I read my public app data without <code class="highlighter-rouge">blockstack.js</code>?</a></li>
|
|
<li><a href="#how-do-i-register-blockstack-ids" id="markdown-toc-how-do-i-register-blockstack-ids">How do I register Blockstack IDs?</a></li>
|
|
<li><a href="#how-do-i-register-blockstack-subdomains" id="markdown-toc-how-do-i-register-blockstack-subdomains">How do I register Blockstack Subdomains?</a></li>
|
|
<li><a href="#can-i-programmatically-register-blockstack-ids" id="markdown-toc-can-i-programmatically-register-blockstack-ids">Can I programmatically register Blockstack IDs?</a></li>
|
|
<li><a href="#can-i-programmatically-register-blockstack-subdomains" id="markdown-toc-can-i-programmatically-register-blockstack-subdomains">Can I programmatically register Blockstack Subdomains?</a></li>
|
|
<li><a href="#do-you-have-a-testnet-or-sandbox-to-experiment-with-blockstack" id="markdown-toc-do-you-have-a-testnet-or-sandbox-to-experiment-with-blockstack">Do you have a testnet or sandbox to experiment with Blockstack?</a></li>
|
|
<li><a href="#does-blockstack-have-a-smart-contract-system" id="markdown-toc-does-blockstack-have-a-smart-contract-system">Does Blockstack have a smart contract system?</a></li>
|
|
<li><a href="#can-blockstack-applications-interact-with-bitcoin-ethereum-smart-contracts-other-blockchains" id="markdown-toc-can-blockstack-applications-interact-with-bitcoin-ethereum-smart-contracts-other-blockchains">Can Blockstack applications interact with Bitcoin? Ethereum? Smart contracts? Other blockchains?</a></li>
|
|
</ul>
|
|
|
|
<h2 id="im-a-web-developer--can-i-build-on-blockstack">I’m a Web developer. Can I build on Blockstack?</h2>
|
|
|
|
<p>Yes! Blockstack is geared primarily towards Web developers. All of your
|
|
existing knowledge is immediately applicable to Blockstack. Anything you can do
|
|
in a Web browser, you can do in a Blockstack app.</p>
|
|
|
|
<h2 id="im-a-non-web-developer--can-i-build-on-blockstack">I’m a non-Web developer. Can I build on Blockstack?</h2>
|
|
|
|
<p>Yes! Blockstack implements a <a href="https://core.blockstack.org">RESTful API</a> which
|
|
lets you interact with Blockstack from any language and any runtime. In fact,
|
|
the reference client
|
|
(<a href="https://github.com/blockstack/blockstack.js">blockstack.js</a>) is mainly a
|
|
wrapper around these RESTful API calls, so you won’t be missing much by using a
|
|
language other than Javascript.</p>
|
|
|
|
<h2 id="whats-the-difference-between-a-web-app-and-a-blockstack-app">What’s the difference between a Web app and a Blockstack app?</h2>
|
|
|
|
<p>Blockstack apps are built like <a href="https://en.wikipedia.org/wiki/Single-page_application">single-page Web
|
|
apps</a>—they are, in
|
|
fact, a type of Web application.</p>
|
|
|
|
<p>Blockstack apps are a subset of Web applications that use Blockstack’s
|
|
technology to preserve the user’s control over their identities and data.
|
|
As such, they tend to be simpler
|
|
in design and operation, since in many cases they don’t have to host anything
|
|
besides the application’s assets.</p>
|
|
|
|
<h2 id="do-i-need-to-learn-any-new-languages-or-frameworks">Do I need to learn any new languages or frameworks?</h2>
|
|
|
|
<p>No. Blockstack applications are built using existing Web frameworks and programming
|
|
The only new thing you need to learn is either <a href="https://github.com/blockstack/blockstack.js">blockstack.js</a> or
|
|
the <a href="https://core.blockstack.org">Blockstack RESTful API</a>.</p>
|
|
|
|
<h2 id="how-does-my-web-app-interact-with-blockstack">How does my Web app interact with Blockstack?</h2>
|
|
|
|
<p>The <a href="https://github.com/blockstack/blockstack.js">blockstack.js</a> library gives
|
|
any Web application the ability to interact with Blockstack’s authentication and
|
|
storage services. In addition, we supply a <a href="https://core.blockstack.org">public RESTful API</a>.</p>
|
|
|
|
<h2 id="what-does-blockstackjs-do">What does <code class="highlighter-rouge">blockstack.js</code> do?</h2>
|
|
|
|
<p>This is the reference client implementation for Blockstack. You use it in your
|
|
Web app to do the following:</p>
|
|
|
|
<ul>
|
|
<li>Authenticate users</li>
|
|
<li>Load and store user data</li>
|
|
<li>Read other users’ public data</li>
|
|
</ul>
|
|
|
|
<h2 id="how-do-i-use-blockstackjs">How do I use <code class="highlighter-rouge">blockstack.js</code>?</h2>
|
|
|
|
<p>Please see the API documentation <a href="https://github.com/blockstack/blockstack.js">here</a>.</p>
|
|
|
|
<h2 id="how-can-i-look-up-names-and-profiles">How can I look up names and profiles?</h2>
|
|
|
|
<p>You can use <code class="highlighter-rouge">blockstack.js</code>, or you can use the <a href="https://core.blockstack.org">public Blockstack Core
|
|
endpoint</a>.</p>
|
|
|
|
<h2 id="how-can-i-read-my-public-app-data-without-blockstackjs">How can I read my public app data without <code class="highlighter-rouge">blockstack.js</code>?</h2>
|
|
|
|
<p>The URLs to a user’s public app data are in a canonical location in their
|
|
profile. For example, here’s how you would get public data from the
|
|
<a href="https://publik.ykliao.com">Publik</a> app, stored under the Blockstack ID <code class="highlighter-rouge">ryan.id</code>.</p>
|
|
|
|
<ol>
|
|
<li>Get the bucket URL
|
|
<div class="language-bash highlighter-rouge"><pre class="highlight"><code><span class="gp">$ </span><span class="nv">BUCKET_URL</span><span class="o">=</span><span class="s2">"</span><span class="k">$(</span>curl -sL https://core.blockstack.org/v1/users/ryan.id | jq -r <span class="s1">'."ryan.id"["profile"]["apps"]["http://publik.ykliao.com"]'</span><span class="k">)</span><span class="s2">"</span>
|
|
<span class="gp">$ </span><span class="nb">echo</span> <span class="s2">"</span><span class="nv">$BUCKET_URL</span><span class="s2">"</span>
|
|
https://gaia.blockstack.org/hub/1FrZTGQ8DM9TMPfGXtXMUvt2NNebLiSzad/
|
|
</code></pre>
|
|
</div>
|
|
</li>
|
|
<li>Get the data
|
|
<div class="language-bash highlighter-rouge"><pre class="highlight"><code><span class="gp">$ </span>curl -sL <span class="s2">"</span><span class="k">${</span><span class="nv">BUCKET_URL</span><span class="p">%%/</span><span class="k">}</span><span class="s2">/statuses.json"</span>
|
|
<span class="o">[{</span><span class="s2">"id"</span>:0,<span class="s2">"text"</span>:<span class="s2">"Hello, Blockstack!"</span>,<span class="s2">"created_at"</span>:1515786983492<span class="o">}]</span>
|
|
</code></pre>
|
|
</div>
|
|
</li>
|
|
</ol>
|
|
|
|
<h2 id="how-do-i-register-blockstack-ids">How do I register Blockstack IDs?</h2>
|
|
|
|
<p>You should use the <a href="https://github.com/blockstack/blockstack-browser">Blockstack Browser</a>.</p>
|
|
|
|
<h2 id="how-do-i-register-blockstack-subdomains">How do I register Blockstack Subdomains?</h2>
|
|
|
|
<p>You can deploy and use a <a href="/core/naming/subdomains.html">Blockstack Subdomain Registrar</a>, or
|
|
use an existing one.</p>
|
|
|
|
<h2 id="can-i-programmatically-register-blockstack-ids">Can I programmatically register Blockstack IDs?</h2>
|
|
|
|
<p>Blockstack applications do not currently have
|
|
have access to the user’s wallet. Users are expected to
|
|
register Blockstack IDs themselves.</p>
|
|
|
|
<p>However, if you feel particularly ambitious, you can do one of the following:</p>
|
|
|
|
<ul>
|
|
<li>
|
|
<p>Set up a <code class="highlighter-rouge">blockstack api</code> endpoint (see the project <a href="https://github.com/blockstack/blockstack-core/blob/master/README.md">README</a>) and write a
|
|
program to automatically register names. Also, see the <a href="https://blockstack.github.io/blockstack-core/#managing-names-register-a-name">API
|
|
documentation</a>
|
|
for registering names on this endpoint.</p>
|
|
</li>
|
|
<li>
|
|
<p>Write a <code class="highlighter-rouge">node.js</code> program that uses <code class="highlighter-rouge">blockstack.js</code> to register
|
|
names. This is currently in development.</p>
|
|
</li>
|
|
</ul>
|
|
|
|
<h2 id="can-i-programmatically-register-blockstack-subdomains">Can I programmatically register Blockstack Subdomains?</h2>
|
|
|
|
<p>Yes! Once you deploy your own subdomain registrar, you can have your Web app
|
|
send it requests to register subdomains on your Blockstack ID. You can also
|
|
create a program that drives subdomain registration on your Blockstack ID.</p>
|
|
|
|
<h2 id="do-you-have-a-testnet-or-sandbox-to-experiment-with-blockstack">Do you have a testnet or sandbox to experiment with Blockstack?</h2>
|
|
|
|
<p>We have an <a href="https://github.com/blockstack/blockstack-core/tree/master/integration_tests">integration test framework</a> that provides a
|
|
private Blockstack testnet. It uses <code class="highlighter-rouge">bitcoin -regtest</code> to create a private
|
|
blockchain that you can interact with, without having to spend any Bitcoin or
|
|
having to wait for blocks to confirm. Please see the
|
|
<a href="https://github.com/blockstack/blockstack-core/blob/master/integration_tests/README.md">README</a> for details.</p>
|
|
|
|
<h2 id="does-blockstack-have-a-smart-contract-system">Does Blockstack have a smart contract system?</h2>
|
|
|
|
<p>No, not yet. This is because
|
|
Blockstack’s design philosophy focuses on keeping system complexity at the
|
|
“edges” of the network (e.g. clients), instead of the “core” of the network (e.g.
|
|
the blockchain), in accordance with the <a href="https://en.wikipedia.org/wiki/End-to-end_principle">end-to-end
|
|
principle</a>.
|
|
Generally speaking, this can be interpreted as “if you can do X without
|
|
a smart contract, you should do X without a smart contract.” This organizing
|
|
principle applies to a lot of useful decentralized applications.</p>
|
|
|
|
<h2 id="can-blockstack-applications-interact-with-bitcoin-ethereum-smart-contracts-other-blockchains">Can Blockstack applications interact with Bitcoin? Ethereum? Smart contracts? Other blockchains?</h2>
|
|
|
|
<p>Yes! Since Blockstack applications are built like Web applications, all you need to do is include the
|
|
relevant Javascript library into your application.</p>
|
|
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<script type="text/javascript">
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/* Create a configuration object */
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var ss360Config = {
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/* Your site id */
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siteId: 'blockstack',
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searchBox: {
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selector: '#searchBox'
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results: {
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embedConfig: undefined, // {'url':undefined,'contentBlock':'.page-content-body'}, // if url is given the page will change to that URL and look for the content block there to insert the results
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fullScreenConfig: undefined, // {trigger: '#ss360-search-trigger', caption: 'Search this site'}, trigger is the CSS selector to the element that starts the search full screen overlay and searchCaption the caption on the full screen search page
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caption: 'Found #COUNT# search results for \"#QUERY#\"', // the caption of the search results
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group: true, // whether results should be grouped if content groups are available
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filters: undefined,
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num: 96, // the maximum number of search results to be shown
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highlightQueryTerms: true, // whether to highlight the query terms in search results
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moreResultsButton: "Show more results", // HTML for the more results button, all results will be shown if this is null
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noResultsText: 'Sorry, we have not found any matches for your query.', // the text to show when there are no results
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queryCorrectionText: 'Did you mean "#CORRECTION#"?',
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searchQueryParamName: 'ss360Query', // the name of the search query parameter
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linksOpenNewTab: false, // should clicking on the result links open a new tab/window?
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showSearchBoxLayover: true, //whether to show search box in search result layover
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moreResultsPagingSize: 12, // the number of new results to show each time the more results button is pressed (max: 24)
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orderByRelevanceText: "Relevance" // the text to be shown in order select box to describe 'order by relevance' option
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},
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suggestions: {
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show: true, // whether to show search suggestions
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maxQuerySuggestions: 3, // the maximum number of query suggestions
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querySuggestionHeadline: undefined, // the headline of the query suggestions, leave blank if no headline should be shown
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emptyQuerySuggestions: undefined,
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showImages: false, // show images in search suggestions
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num: 6, // the maximum number of search suggestions to be shown
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minChars: 3, // minimum number of characters before the suggestions shows, default: 3,
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maxWidth: 'auto', // the maximum width of the suggest box, default: as wide as the input box, at least 275px
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throttleTime: 300, // the number of milliseconds before the suggest is triggered after finished input, default: 300ms
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extraHtml: undefined, // extra HTML code that is shown in each search suggest, you can even show values of datapoints here,
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highlight: true, // whether matched words should be highlighted, default: true
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}
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