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< time datetime = "2018-09-10T15:49:53-07:00" itemprop = "datePublished" >
< a " target = "_blank" href = "https://github.com/blockstack/blockstack-core/blob/master/docs/search.md" class = "btn btn-default githubEditButton" role = "button" >
< span data-uk-icon = "icon: pencil; ratio: 1.2" > < / span > Edit this page on Github< / a >
< span style = "font-family:Wingdings" > w < / span > Sep 10, 2018
< / time >
< / div >
< div class = "article-content" >
< p > The search subsystem for Blockstack Core creates an index for data associated
with registered names in namespaces and makes that data searchable.< / p >
< p > The search subsystem is currently meant to index the .id namespace but can
be easily expanded to include other namespaces.< / p >
< p > Currently there are two types of indexes to handle search queries:< / p >
< ul >
< li > Substring search on usernames, full names, twitter_handle (powered by MongoDB)< / li >
< li > Raw Lucene index which handles searching extended data e.g., bio.< / li >
< / ul >
< p > Search will currently return upto a max of 20 results (can be less depending on the query)
with data that follows structure of < a href = "https://github.com/blockstack/blockstack" > blockstack IDs< / a > :< / p >
< p > In early 2017, the search subsystem was ported over to the new API system, where support for search is provided by the endpoint:< / p >
< div class = "highlighter-rouge" > < pre class = "highlight" > < code > http://localhost:5000/search?query=< SEARCH_PATTERN>
< / code > < / pre >
< / div >
< p > This document describes how to setup the search subsystem to respond at that endpoint.< / p >
< h1 id = "installation" > Installation< / h1 >
< ul >
< li > < strong > Step 1:< / strong > First, make sure you have < a href = "http://docs.python-guide.org/en/latest/dev/virtualenvs/" > virtualenv installed< / a > .
Then, setup the API and search subsystem:
< div class = "highlighter-rouge" > < pre class = "highlight" > < code > $ sudo apt-get install -y mongodb memcached python-dev libmemcached-dev zlib1g-dev nginx
$ sudo pip install uwsgi
$ git clone https://github.com/blockstack/blockstack-core.git --branch api
$ cd blockstack-core/
$ sudo pip install .
$ sudo pip install -r api/requirements.txt
$ sudo mkdir /var/blockstack-search & & sudo chown $USER:$USER /var/blockstack-search
< / code > < / pre >
< / div >
< / li >
< li >
< p > < strong > Step 2:< / strong > Make sure you have Blockstack Core running locally (see < a href = "https://github.com/blockstack/blockstack-core/blob/master/README.md#quick-start" > instructions< / a > ). We highly
recommend using a local node because the search subsystem issues thousands of calls to
Blockstack Core for re-indexing and remote nodes can slow down performance.< / p >
< / li >
< li > < strong > Step 3:< / strong > Fetch the data for the .id namespace and respective profiles. Note, you may want to redirect stderr to a file, as there is a lot of debug output.< / li >
< / ul >
< div class = "highlighter-rouge" > < pre class = "highlight" > < code > $ cd api/
$ python -m search.fetch_data --fetch_namespace
$ python -m search.fetch_data --fetch_profiles
< / code > < / pre >
< / div >
< ul >
< li > < strong > Step 4:< / strong > Create the search index:< / li >
< / ul >
< div class = "highlighter-rouge" > < pre class = "highlight" > < code > python -m search.basic_index --refresh
< / code > < / pre >
< / div >
< ul >
< li > < strong > Step 5:< / strong > Enable search API endpoint:< / li >
< / ul >
< div class = "highlighter-rouge" > < pre class = "highlight" > < code > $ sed -i 's/SEARCH_API_ENDPOINT_ENABLED \= False/SEARCH_API_ENDPOINT_ENABLED \= True/' config.py
< / code > < / pre >
< / div >
< h1 id = "usage" > Usage< / h1 >
< p > You can quickly test the search index from the command line:< / p >
< div class = "highlighter-rouge" > < pre class = "highlight" > < code > python -m search.substring_search --search_name "Fred Wil"
python -m search.substring_search --search_twitter fredwil
< / code > < / pre >
< / div >
< p > You can also use the search API end-point:< / p >
< blockquote >
< p > curl -G {machine_ip}:port/search/name -d “query=muneeb”< / p >
< / blockquote >
< p > Sample Response:< / p >
< div class = "highlighter-rouge" > < pre class = "highlight" > < code > < span class = "p" > {< / span > < span class = "w" >
< / span > < span class = "nt" > "people"< / span > < span class = "p" > :< / span > < span class = "w" > < / span > < span class = "p" > [< / span > < span class = "w" >
< / span > < span class = "p" > {< / span > < span class = "w" >
< / span > < span class = "nt" > "profile"< / span > < span class = "p" > :< / span > < span class = "w" > < / span > < span class = "p" > {< / span > < span class = "w" >
< / span > < span class = "nt" > "website"< / span > < span class = "p" > :< / span > < span class = "w" > < / span > < span class = "p" > [< / span > < span class = "w" >
< / span > < span class = "p" > {< / span > < span class = "w" >
< / span > < span class = "nt" > "url"< / span > < span class = "p" > :< / span > < span class = "w" > < / span > < span class = "s2" > "http://muneebali.com"< / span > < span class = "p" > ,< / span > < span class = "w" >
< / span > < span class = "nt" > "@type"< / span > < span class = "p" > :< / span > < span class = "w" > < / span > < span class = "s2" > "WebSite"< / span > < span class = "w" >
< / span > < span class = "p" > }< / span > < span class = "w" >
< / span > < span class = "p" > ],< / span > < span class = "w" >
< / span > < span class = "nt" > "name"< / span > < span class = "p" > :< / span > < span class = "w" > < / span > < span class = "s2" > "Muneeb Ali"< / span > < span class = "p" > ,< / span > < span class = "w" >
< / span > < span class = "nt" > "address"< / span > < span class = "p" > :< / span > < span class = "w" > < / span > < span class = "p" > {< / span > < span class = "w" >
< / span > < span class = "nt" > "addressLocality"< / span > < span class = "p" > :< / span > < span class = "w" > < / span > < span class = "s2" > "New York, NY"< / span > < span class = "p" > ,< / span > < span class = "w" >
< / span > < span class = "nt" > "@type"< / span > < span class = "p" > :< / span > < span class = "w" > < / span > < span class = "s2" > "PostalAddress"< / span > < span class = "w" >
< / span > < span class = "p" > },< / span > < span class = "w" >
< / span > < span class = "nt" > "image"< / span > < span class = "p" > :< / span > < span class = "w" > < / span > < span class = "p" > [< / span > < span class = "w" >
< / span > < span class = "p" > {< / span > < span class = "w" >
< / span > < span class = "nt" > "contentUrl"< / span > < span class = "p" > :< / span > < span class = "w" > < / span > < span class = "s2" > "https://s3.amazonaws.com/dx3/muneeb"< / span > < span class = "p" > ,< / span > < span class = "w" >
< / span > < span class = "nt" > "@type"< / span > < span class = "p" > :< / span > < span class = "w" > < / span > < span class = "s2" > "ImageObject"< / span > < span class = "p" > ,< / span > < span class = "w" >
< / span > < span class = "nt" > "name"< / span > < span class = "p" > :< / span > < span class = "w" > < / span > < span class = "s2" > "cover"< / span > < span class = "w" >
< / span > < span class = "p" > },< / span > < span class = "w" >
< / span > < span class = "p" > {< / span > < span class = "w" >
< / span > < span class = "nt" > "contentUrl"< / span > < span class = "p" > :< / span > < span class = "w" > < / span > < span class = "s2" > "https://s3.amazonaws.com/kd4/muneeb"< / span > < span class = "p" > ,< / span > < span class = "w" >
< / span > < span class = "nt" > "@type"< / span > < span class = "p" > :< / span > < span class = "w" > < / span > < span class = "s2" > "ImageObject"< / span > < span class = "p" > ,< / span > < span class = "w" >
< / span > < span class = "nt" > "name"< / span > < span class = "p" > :< / span > < span class = "w" > < / span > < span class = "s2" > "avatar"< / span > < span class = "w" >
< / span > < span class = "p" > }< / span > < span class = "w" >
< / span > < span class = "p" > ],< / span > < span class = "w" >
< / span > < span class = "nt" > "@type"< / span > < span class = "p" > :< / span > < span class = "w" > < / span > < span class = "s2" > "Person"< / span > < span class = "p" > ,< / span > < span class = "w" >
< / span > < span class = "nt" > "description"< / span > < span class = "p" > :< / span > < span class = "w" > < / span > < span class = "s2" > "Co-founder of Blockstack. Interested in distributed systems and blockchains. Previously, PhD at Princeton."< / span > < span class = "w" >
< / span > < span class = "p" > },< / span > < span class = "w" >
< / span > < span class = "nt" > "username"< / span > < span class = "p" > :< / span > < span class = "w" > < / span > < span class = "s2" > "muneeb"< / span > < span class = "w" >
< / span > < span class = "p" > },< / span > < span class = "w" >
< / span > < span class = "p" > {< / span > < span class = "w" >
< / span > < span class = "nt" > "profile"< / span > < span class = "p" > :< / span > < span class = "w" > < / span > < span class = "p" > {< / span > < span class = "w" >
< / span > < span class = "nt" > "message"< / span > < span class = "p" > :< / span > < span class = "w" > < / span > < span class = "s2" > "This blockchain ID is reserved for Muneeb Ali. If this is you, please email support@onename.com to claim it for free."< / span > < span class = "p" > ,< / span > < span class = "w" >
< / span > < span class = "nt" > "status"< / span > < span class = "p" > :< / span > < span class = "w" > < / span > < span class = "s2" > "reserved"< / span > < span class = "w" >
< / span > < span class = "p" > },< / span > < span class = "w" >
< / span > < span class = "nt" > "username"< / span > < span class = "p" > :< / span > < span class = "w" > < / span > < span class = "s2" > "muneebali"< / span > < span class = "w" >
< / span > < span class = "p" > },< / span > < span class = "w" >
< / span > < span class = "p" > {< / span > < span class = "w" >
< / span > < span class = "nt" > "profile"< / span > < span class = "p" > :< / span > < span class = "w" > < / span > < span class = "p" > {< / span > < span class = "w" >
< / span > < span class = "nt" > "cover"< / span > < span class = "p" > :< / span > < span class = "w" > < / span > < span class = "p" > {< / span > < span class = "w" >
< / span > < span class = "nt" > "url"< / span > < span class = "p" > :< / span > < span class = "w" > < / span > < span class = "s2" > "https://s3.amazonaws.com/97p/HHE.jpg"< / span > < span class = "w" >
< / span > < span class = "p" > },< / span > < span class = "w" >
< / span > < span class = "nt" > "v"< / span > < span class = "p" > :< / span > < span class = "w" > < / span > < span class = "s2" > "0.2"< / span > < span class = "w" >
< / span > < span class = "p" > },< / span > < span class = "w" >
< / span > < span class = "nt" > "username"< / span > < span class = "p" > :< / span > < span class = "w" > < / span > < span class = "s2" > "muneebali1"< / span > < span class = "w" >
< / span > < span class = "p" > }< / span > < span class = "w" >
< / span > < span class = "p" > ]< / span > < span class = "w" >
< / span > < span class = "p" > }< / span > < span class = "w" >
< / span > < / code > < / pre >
< / div >
< h2 id = "enabling-elastic-search" > Enabling Elastic Search< / h2 >
< h3 id = "requirements" > Requirements:< / h3 >
< div class = "highlighter-rouge" > < pre class = "highlight" > < code > sudo apt-get install mongodb
sudo apt-get install memcached libmemcached-dev
sudo apt-get install python2.7-dev
pip install -r requirements.txt
< / code > < / pre >
< / div >
< h3 id = "elastic-search" > Elastic Search< / h3 >
< p > Elastic Search library is not in github and resides at unix/lib/elastic< / p >
< p > the current version we’re using is < em > 0.90.2< / em > . Download from:< / p >
< blockquote >
< p > wget https://download.elasticsearch.org/elasticsearch/elasticsearch/elasticsearch-0.90.2.zip< / p >
< / blockquote >
< p > before installing pylimbmc make sure < a href = "memcached.md" > memcached< / a > is installed.< / p >
< p > Ensure that mongodb and elastic search are running
starting elastic search:< / p >
< div class = "highlighter-rouge" > < pre class = "highlight" > < code > $elasticsearch (on mac)
bin/elasticsearch -d (on linux)
< / code > < / pre >
< / div >
< p > To test if elastic search is running:< / p >
< blockquote >
< p > curl -X GET http://localhost:9200/< / p >
< / blockquote >
< p > returns:< / p >
< div class = "highlighter-rouge" > < pre class = "highlight" > < code > < span class = "p" > {< / span > < span class = "w" >
< / span > < span class = "nt" > "ok"< / span > < span class = "w" > < / span > < span class = "p" > :< / span > < span class = "w" > < / span > < span class = "kc" > true< / span > < span class = "p" > ,< / span > < span class = "w" >
< / span > < span class = "nt" > "status"< / span > < span class = "w" > < / span > < span class = "p" > :< / span > < span class = "w" > < / span > < span class = "mi" > 200< / span > < span class = "p" > ,< / span > < span class = "w" >
< / span > < span class = "nt" > "name"< / span > < span class = "w" > < / span > < span class = "p" > :< / span > < span class = "w" > < / span > < span class = "s2" > "Angler"< / span > < span class = "p" > ,< / span > < span class = "w" >
< / span > < span class = "nt" > "version"< / span > < span class = "w" > < / span > < span class = "p" > :< / span > < span class = "w" > < / span > < span class = "p" > {< / span > < span class = "w" >
< / span > < span class = "nt" > "number"< / span > < span class = "w" > < / span > < span class = "p" > :< / span > < span class = "w" > < / span > < span class = "s2" > "0.90.2"< / span > < span class = "p" > ,< / span > < span class = "w" >
< / span > < span class = "nt" > "snapshot_build"< / span > < span class = "w" > < / span > < span class = "p" > :< / span > < span class = "w" > < / span > < span class = "kc" > false< / span > < span class = "p" > ,< / span > < span class = "w" >
< / span > < span class = "nt" > "lucene_version"< / span > < span class = "w" > < / span > < span class = "p" > :< / span > < span class = "w" > < / span > < span class = "s2" > "4.3.1"< / span > < span class = "w" >
< / span > < span class = "p" > },< / span > < span class = "w" >
< / span > < / code > < / pre >
< / div >
< p > Create Index:< / p >
< blockquote >
< p > python create_search_index.py –create_index< / p >
< / blockquote >
< div class = "share uk-text-center" >
< a href = "https://twitter.com/intent/tweet?text=How to build a Profile Search Index&url=https://zbabystack.netlify.com/core/naming/search.html&via=&related=" rel = "nofollow" target = "_blank" title = "Share on Twitter" onclick = "window.open(this.href, 'twitter', 'width=550,height=235');return false;" > < span data-uk-icon = "icon: twitter; ratio: 1.2" > < / span > < / a >
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< h3 > Related Articles< / h3 >
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UIkit.scroll('#markdown-toc a', {
duration: 400,
offset: 120
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< li > < a href = "https://forum.blockstack.org/" target = "_blank" > Forums< / a > < / li >
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< div class = "uk-first-column" >
< a href = "https://twitter.com/" data-uk-icon = "icon: twitter" class = "uk-icon-link uk-icon" target = "_blank" > < / a >
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/* Create a configuration object */
var ss360Config = {
/* Your site id */
siteId: 'blockstack',
/* A CSS selector that points to your search box */
searchBox: {selector: '#searchBox'}
};
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< script src = "https://cdn.sitesearch360.com/sitesearch360-v11.min.js" async > < / script >
< / body >
< / html >
