HackMD - Collaborative Markdown Knowledge Base

### Creacion del indice **TODO:** No sé si alguien sabe como manejar la siguiente situación: - Se crea el mapping del indice - Se inserta el primer -tweet- (y se mapean nuevos campos de forma automática) - Luego se inserta otro tweet pero este tiene algún campo extra que el anterior no tenia y entonces se produce un error al no estar mapeado. - Quizás haya que mapear a mano todos los campos de la estructura de los tweets? ```json= PUT /g20 { "settings": { "analysis": { "analyzer": { "htmlStripAnalyzer": { "type": "custom", "tokenizer": "keyword", "char_filter": [ "html_strip" ] }, "textAnalyzer": { "type": "custom", "char_filter": [ "html_strip" ], "tokenizer": "standard", "filter": [ "stop", "snowball" ] } } } }, "mappings": { "properties": { "text": { "type": "text", "analyzer": "textAnalyzer" }, "user.created_at": { "type": "date", "format": "EEE MMM dd HH:mm:ss Z yyyy" }, "id": { "type": "long" }, "user.location": { "type": "keyword" }, "user.followers_count": { "type": "long" }, "place.bounding_box": { "type": "geo_shape", "coerce": true, "ignore_malformed": true }, "source": { "type": "text", "analyzer": "htmlStripAnalyzer" }, "entities.hashtags": { "type": "keyword" }, "timestamp_ms": { "type": "date" }, "retweeted": { "type": "boolean" } } } } ``` ### Insertar un registro ```json POST /g20test/_doc/1 { "quote_count":0, "contributors":null, "truncated":true, "text":"@WhiteHouse He continued with Obama's turn around economy. Obama didnt overturn environmental laws &\nClimate chang\u2026 https://t.co/oRP4fRkWlJ", "is_quote_status":false, "in_reply_to_status_id":1059614092254683136, "reply_count":0, "id":1059865023755894784, "favorite_count":0, "entities":{ "user_mentions":[ { "id":822215673812119553, "indices":[ 0, 11 ], "id_str":"822215673812119553", "screen_name":"WhiteHouse", "name":"The White House" } ], "symbols":[ ], "hashtags":[ ], "urls":[ { "url":"https://t.co/oRP4fRkWlJ", "indices":[ 121, 144 ], "expanded_url":"https://twitter.com/i/web/status/1059865023755894784", "display_url":"twitter.com/i/web/status/1\u2026" } ] }, "retweeted":false, "coordinates":null, "timestamp_ms":"1541526487660", "source":"<a href=\"http://twitter.com/download/android\" rel=\"nofollow\">Twitter for Android</a>", "in_reply_to_screen_name":"WhiteHouse", "id_str":"1059865023755894784", "display_text_range":[ 12, 140 ], "retweet_count":0, "in_reply_to_user_id":822215673812119553, "favorited":false, "user":{ "follow_request_sent":null, "profile_use_background_image":true, "default_profile_image":false, "id":950552286605946880, "default_profile":true, "verified":false, "profile_image_url_https":"https://abs.twimg.com/sticky/default_profile_images/default_profile_normal.png", "profile_sidebar_fill_color":"DDEEF6", "profile_text_color":"333333", "followers_count":5, "profile_sidebar_border_color":"C0DEED", "id_str":"950552286605946880", "profile_background_color":"F5F8FA", "listed_count":0, "profile_background_image_url_https":"", "utc_offset":null, "statuses_count":551, "description":null, "friends_count":93, "location":null, "profile_link_color":"1DA1F2", "profile_image_url":"http://abs.twimg.com/sticky/default_profile_images/default_profile_normal.png", "following":null, "geo_enabled":true, "profile_background_image_url":"", "name":"Robert shuster", "lang":"en", "profile_background_tile":false, "favourites_count":11, "screen_name":"Robertshuster8", "notifications":null, "url":null, "created_at":"Tue Jan 09 02:18:20 +0000 2018", "contributors_enabled":false, "time_zone":null, "protected":false, "translator_type":"none", "is_translator":false }, "geo":null, "in_reply_to_user_id_str":"822215673812119553", "lang":"en", "extended_tweet":{ "display_text_range":[ 12, 178 ], "entities":{ "user_mentions":[ { "id":822215673812119553, "indices":[ 0, 11 ], "id_str":"822215673812119553", "screen_name":"WhiteHouse", "name":"The White House" } ], "symbols":[ ], "hashtags":[ ], "urls":[ ] }, "full_text":"@WhiteHouse He continued with Obama's turn around economy. Obama didnt overturn environmental laws &\nClimate change. And trump blew up\nOur biggest budget deficit in history." }, "created_at":"Tue Nov 06 17:48:07 +0000 2018", "filter_level":"low", "in_reply_to_status_id_str":"1059614092254683136", "place":{ "country_code":"US", "url":"https://api.twitter.com/1.1/geo/id/3b77caf94bfc81fe.json", "country":"United States", "place_type":"city", "bounding_box":{ "type":"Polygon", "coordinates":[ [ [ -118.668404, 33.704538 ], [ -118.668404, 34.337041 ], [ -118.155409, 34.337041 ], [ -118.155409, 33.704538 ] ] ] }, "full_name":"Los Angeles, CA", "attributes":{ }, "id":"3b77caf94bfc81fe", "name":"Los Angeles" } } ``` ### Busqueda generica ```json GET /g20test/_search { "query": { "match_all": {} } } ``` Referencias: - [All About Analyzers, Part One](https://www.elastic.co/es/blog/found-text-analysis-part-1) - [Snowball (stemmer)](https://www.elastic.co/guide/en/elasticsearch/reference/current/analysis-snowball-tokenfilter.html)

Syntax	Example	Reference
# Header	Header	基本排版
- Unordered List	Unordered List
1. Ordered List	Ordered List
- [ ] Todo List	Todo List
> Blockquote	Blockquote
Bold font	Bold font
Italics font	Italics font
~~Strikethrough~~	~~Strikethrough~~
19^th^	19^th
H~2~O	H₂O
++Inserted text++	Inserted text
==Marked text==	Marked text
[link text](https:// "title")	Link
![image alt](https:// "title")	Image
`Code`	`Code`	在筆記中貼入程式碼
```javascript var i = 0; ```	`var i = 0;`
:smile:		Emoji list
{%youtube youtube_id %}	Externals
$L^aT_eX$	L^aT_eX
:::info This is a alert area. :::	This is a alert area.