Parse and transform tweets using XQuery 3.1's JSON support
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| xquery version "3.1"; | |
| (: parse tweets using XQuery 3.1's JSON support | |
| : see http://www.w3.org/TR/xpath-functions-31/#json | |
| : sample JSON from https://dev.twitter.com/rest/reference/get/statuses/user_timeline | |
| :) | |
| let $json := json-doc('/db/user_timeline.json') | |
| let $tweets := $json?* | |
| return | |
| <tweets>{ | |
| for $tweet in $tweets | |
| let $id := $tweet?id_str | |
| let $created := $tweet?created_at | |
| let $text := $tweet?text | |
| let $user-id := $tweet?user?screen_name | |
| let $url := concat('https://twitter.com/', $user-id, '/statuses/', $id) | |
| return | |
| <tweet> | |
| <id>{$id}</id> | |
| <created>{$created}</created> | |
| <text>{$text}</text> | |
| <user-id>{$user-id}</user-id> | |
| <url>{$url}</url> | |
| </tweet> | |
| }</tweets> |
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| <!-- results of parse-tweets.xq when using sample JSON from https://dev.twitter.com/rest/reference/get/statuses/user_timeline --> | |
| <tweets> | |
| <tweet> | |
| <id>240859602684612608</id> | |
| <created>Wed Aug 29 17:12:58 +0000 2012</created> | |
| <text>Introducing the Twitter Certified Products Program: https://t.co/MjJ8xAnT</text> | |
| <user-id>twitterapi</user-id> | |
| <url>https://twitter.com/twitterapi/statuses/240859602684612608</url> | |
| </tweet> | |
| <tweet> | |
| <id>239413543487819778</id> | |
| <created>Sat Aug 25 17:26:51 +0000 2012</created> | |
| <text>We are working to resolve issues with application management & logging in to the dev portal: https://t.co/p5bOzH0k ^TS</text> | |
| <user-id>twitterapi</user-id> | |
| <url>https://twitter.com/twitterapi/statuses/239413543487819778</url> | |
| </tweet> | |
| </tweets> |
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| xquery version "3.1"; | |
| (: transform JSON with XQuery :) | |
| import module namespace ju = "http://joewiz.org/ns/xquery/json-util" at "/db/json-util.xqm"; | |
| (: see https://gist.github.com/joewiz/d986da715facaad633db for this function :) | |
| let $json := json-doc('/db/user_timeline.json') | |
| let $tweets := $json?* | |
| let $new-tweets := | |
| array { | |
| for $tweet in $tweets | |
| let $id := $tweet?id_str | |
| let $created := $tweet?created_at | |
| let $text := $tweet?text | |
| let $user-id := $tweet?user?screen_name | |
| let $url := concat('https://twitter.com/', $user-id, '/statuses/', $id) | |
| return | |
| map { | |
| 'id_str': $id, | |
| 'created_at': $created, | |
| 'user': map { | |
| 'screen_name': $user-id | |
| }, | |
| 'url': $url | |
| } | |
| } | |
| return | |
| ju:serialize-json($new-tweets) |
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| [ | |
| { | |
| "created_at": "Wed Aug 29 17:12:58 +0000 2012", | |
| "user": {"screen_name": "twitterapi"}, | |
| "id_str": "240859602684612608", | |
| "url": "https://twitter.com/twitterapi/statuses/240859602684612608" | |
| }, | |
| { | |
| "created_at": "Sat Aug 25 17:26:51 +0000 2012", | |
| "user": {"screen_name": "twitterapi"}, | |
| "id_str": "239413543487819778", | |
| "url": "https://twitter.com/twitterapi/statuses/239413543487819778" | |
| } | |
| ] |
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| [ | |
| { | |
| "coordinates": null, | |
| "favorited": false, | |
| "truncated": false, | |
| "created_at": "Wed Aug 29 17:12:58 +0000 2012", | |
| "id_str": "240859602684612608", | |
| "entities": { | |
| "urls": [{ | |
| "expanded_url": "https://dev.twitter.com/blog/twitter-certified-products", | |
| "url": "https://t.co/MjJ8xAnT", | |
| "indices": [ | |
| 52, | |
| 73 | |
| ], | |
| "display_url": "dev.twitter.com/blog/twitter-c\u2026" | |
| }], | |
| "hashtags": [], | |
| "user_mentions": [] | |
| }, | |
| "in_reply_to_user_id_str": null, | |
| "contributors": null, | |
| "text": "Introducing the Twitter Certified Products Program: https://t.co/MjJ8xAnT", | |
| "retweet_count": 121, | |
| "in_reply_to_status_id_str": null, | |
| "id": 240859602684612608, | |
| "geo": null, | |
| "retweeted": false, | |
| "possibly_sensitive": false, | |
| "in_reply_to_user_id": null, | |
| "place": null, | |
| "user": { | |
| "profile_sidebar_fill_color": "DDEEF6", | |
| "profile_sidebar_border_color": "C0DEED", | |
| "profile_background_tile": false, | |
| "name": "Twitter API", | |
| "profile_image_url": "http://a0.twimg.com/profile_images/2284174872/7df3h38zabcvjylnyfe3_normal.png", | |
| "created_at": "Wed May 23 06:01:13 +0000 2007", | |
| "location": "San Francisco, CA", | |
| "follow_request_sent": false, | |
| "profile_link_color": "0084B4", | |
| "is_translator": false, | |
| "id_str": "6253282", | |
| "entities": { | |
| "url": {"urls": [{ | |
| "expanded_url": null, | |
| "url": "http://dev.twitter.com", | |
| "indices": [ | |
| 0, | |
| 22 | |
| ] | |
| }]}, | |
| "description": {"urls": []} | |
| }, | |
| "default_profile": true, | |
| "contributors_enabled": true, | |
| "favourites_count": 24, | |
| "url": "http://dev.twitter.com", | |
| "profile_image_url_https": "https://si0.twimg.com/profile_images/2284174872/7df3h38zabcvjylnyfe3_normal.png", | |
| "utc_offset": -28800, | |
| "id": 6253282, | |
| "profile_use_background_image": true, | |
| "listed_count": 10775, | |
| "profile_text_color": "333333", | |
| "lang": "en", | |
| "followers_count": 1212864, | |
| "protected": false, | |
| "notifications": null, | |
| "profile_background_image_url_https": "https://si0.twimg.com/images/themes/theme1/bg.png", | |
| "profile_background_color": "C0DEED", | |
| "verified": true, | |
| "geo_enabled": true, | |
| "time_zone": "Pacific Time (US & Canada)", | |
| "description": "The Real Twitter API. I tweet about API changes, service issues and happily answer questions about Twitter and our API. Don't get an answer? It's on my website.", | |
| "default_profile_image": false, | |
| "profile_background_image_url": "http://a0.twimg.com/images/themes/theme1/bg.png", | |
| "statuses_count": 3333, | |
| "friends_count": 31, | |
| "following": null, | |
| "show_all_inline_media": false, | |
| "screen_name": "twitterapi" | |
| }, | |
| "in_reply_to_screen_name": null, | |
| "source": "<a href=\"//sites.google.com/site/yorufukurou/\" rel=\"nofollow\">YoruFukurou<\/a>", | |
| "in_reply_to_status_id": null | |
| }, | |
| { | |
| "coordinates": null, | |
| "favorited": false, | |
| "truncated": false, | |
| "created_at": "Sat Aug 25 17:26:51 +0000 2012", | |
| "id_str": "239413543487819778", | |
| "entities": { | |
| "urls": [{ | |
| "expanded_url": "https://dev.twitter.com/issues/485", | |
| "url": "https://t.co/p5bOzH0k", | |
| "indices": [ | |
| 97, | |
| 118 | |
| ], | |
| "display_url": "dev.twitter.com/issues/485" | |
| }], | |
| "hashtags": [], | |
| "user_mentions": [] | |
| }, | |
| "in_reply_to_user_id_str": null, | |
| "contributors": null, | |
| "text": "We are working to resolve issues with application management & logging in to the dev portal: https://t.co/p5bOzH0k ^TS", | |
| "retweet_count": 105, | |
| "in_reply_to_status_id_str": null, | |
| "id": 239413543487819778, | |
| "geo": null, | |
| "retweeted": false, | |
| "possibly_sensitive": false, | |
| "in_reply_to_user_id": null, | |
| "place": null, | |
| "user": { | |
| "profile_sidebar_fill_color": "DDEEF6", | |
| "profile_sidebar_border_color": "C0DEED", | |
| "profile_background_tile": false, | |
| "name": "Twitter API", | |
| "profile_image_url": "http://a0.twimg.com/profile_images/2284174872/7df3h38zabcvjylnyfe3_normal.png", | |
| "created_at": "Wed May 23 06:01:13 +0000 2007", | |
| "location": "San Francisco, CA", | |
| "follow_request_sent": false, | |
| "profile_link_color": "0084B4", | |
| "is_translator": false, | |
| "id_str": "6253282", | |
| "entities": { | |
| "url": {"urls": [{ | |
| "expanded_url": null, | |
| "url": "http://dev.twitter.com", | |
| "indices": [ | |
| 0, | |
| 22 | |
| ] | |
| }]}, | |
| "description": {"urls": []} | |
| }, | |
| "default_profile": true, | |
| "contributors_enabled": true, | |
| "favourites_count": 24, | |
| "url": "http://dev.twitter.com", | |
| "profile_image_url_https": "https://si0.twimg.com/profile_images/2284174872/7df3h38zabcvjylnyfe3_normal.png", | |
| "utc_offset": -28800, | |
| "id": 6253282, | |
| "profile_use_background_image": true, | |
| "listed_count": 10775, | |
| "profile_text_color": "333333", | |
| "lang": "en", | |
| "followers_count": 1212864, | |
| "protected": false, | |
| "notifications": null, | |
| "profile_background_image_url_https": "https://si0.twimg.com/images/themes/theme1/bg.png", | |
| "profile_background_color": "C0DEED", | |
| "verified": true, | |
| "geo_enabled": true, | |
| "time_zone": "Pacific Time (US & Canada)", | |
| "description": "The Real Twitter API. I tweet about API changes, service issues and happily answer questions about Twitter and our API. Don't get an answer? It's on my website.", | |
| "default_profile_image": false, | |
| "profile_background_image_url": "http://a0.twimg.com/images/themes/theme1/bg.png", | |
| "statuses_count": 3333, | |
| "friends_count": 31, | |
| "following": null, | |
| "show_all_inline_media": false, | |
| "screen_name": "twitterapi" | |
| }, | |
| "in_reply_to_screen_name": null, | |
| "source": "<a href=\"//sites.google.com/site/yorufukurou/\" rel=\"nofollow\">YoruFukurou<\/a>", | |
| "in_reply_to_status_id": null | |
| } | |
| ] |
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