Instagram Embedding 抓iframe高度及3種大小圖片

Instagram Embedding 抓iframe高度及3種大小圖片

嵌入Instagram的方式

平常用Bootstrap那種嵌入影音的方式用習慣了,最近接觸到Instagram的嵌入才發現不一樣。

一般像Youtube那種影音,大小會是16:9,所以用width、padding-bottom的配合方式,可以很簡單的做出響應式的嵌入。

但Instagram的貼文,我看大小不太有固定的,會被貼文的文字內容影響高度,變成沒有一個固定比例,如果一樣用16:9的方式嵌入,就會變這樣:

用responsive iframe的方式嵌入IG,會被切掉
用responsive iframe的方式嵌入IG,會被切掉

所以Instagram本身有提供嵌入的程式碼,如果複製IG提供的嵌入code,最後呈現的會是這樣:

用IG提供的嵌入碼,貼文很完整
用IG提供的嵌入碼,貼文很完整

呈現的很完整,但有一個缺點,就是Instagram提供的嵌入碼超~~~~~~長,像這樣:

<blockquote class="instagram-media" data-instgrm-permalink="https://www.instagram.com/p/BtcljQuAk5a/?utm_source=ig_embed&utm_campaign=loading" data-instgrm-version="12" style=" background:#FFF; border:0; border-radius:3px; box-shadow:0 0 1px 0 rgba(0,0,0,0.5),0 1px 10px 0 rgba(0,0,0,0.15); margin: 1px; max-width:540px; min-width:326px; padding:0; width:99.375%; width:-webkit-calc(100% - 2px); width:calc(100% - 2px);"><div style="padding:16px;"> <a href="https://www.instagram.com/p/BtcljQuAk5a/?utm_source=ig_embed&utm_campaign=loading" style=" background:#FFFFFF; line-height:0; padding:0 0; text-align:center; text-decoration:none; width:100%;" target="_blank"> <div style=" display: flex; flex-direction: row; align-items: center;"> <div style="background-color: #F4F4F4; border-radius: 50%; flex-grow: 0; height: 40px; margin-right: 14px; width: 40px;"></div> <div style="display: flex; flex-direction: column; flex-grow: 1; justify-content: center;"> <div style=" background-color: #F4F4F4; border-radius: 4px; flex-grow: 0; height: 14px; margin-bottom: 6px; width: 100px;"></div> <div style=" background-color: #F4F4F4; border-radius: 4px; flex-grow: 0; height: 14px; width: 60px;"></div></div></div><div style="padding: 19% 0;"></div> <div style="display:block; height:50px; margin:0 auto 12px; width:50px;"><svg width="50px" height="50px" viewBox="0 0 60 60" version="1.1" xmlns="https://www.w3.org/2000/svg" xmlns:xlink="https://www.w3.org/1999/xlink"><g stroke="none" stroke-width="1" fill="none" fill-rule="evenodd"><g transform="translate(-511.000000, -20.000000)" fill="#000000"><g><path d="M556.869,30.41 C554.814,30.41 553.148,32.076 553.148,34.131 C553.148,36.186 554.814,37.852 556.869,37.852 C558.924,37.852 560.59,36.186 560.59,34.131 C560.59,32.076 558.924,30.41 556.869,30.41 M541,60.657 C535.114,60.657 530.342,55.887 530.342,50 C530.342,44.114 535.114,39.342 541,39.342 C546.887,39.342 551.658,44.114 551.658,50 C551.658,55.887 546.887,60.657 541,60.657 M541,33.886 C532.1,33.886 524.886,41.1 524.886,50 C524.886,58.899 532.1,66.113 541,66.113 C549.9,66.113 557.115,58.899 557.115,50 C557.115,41.1 549.9,33.886 541,33.886 M565.378,62.101 C565.244,65.022 564.756,66.606 564.346,67.663 C563.803,69.06 563.154,70.057 562.106,71.106 C561.058,72.155 560.06,72.803 558.662,73.347 C557.607,73.757 556.021,74.244 553.102,74.378 C549.944,74.521 548.997,74.552 541,74.552 C533.003,74.552 532.056,74.521 528.898,74.378 C525.979,74.244 524.393,73.757 523.338,73.347 C521.94,72.803 520.942,72.155 519.894,71.106 C518.846,70.057 518.197,69.06 517.654,67.663 C517.244,66.606 516.755,65.022 516.623,62.101 C516.479,58.943 516.448,57.996 516.448,50 C516.448,42.003 516.479,41.056 516.623,37.899 C516.755,34.978 517.244,33.391 517.654,32.338 C518.197,30.938 518.846,29.942 519.894,28.894 C520.942,27.846 521.94,27.196 523.338,26.654 C524.393,26.244 525.979,25.756 528.898,25.623 C532.057,25.479 533.004,25.448 541,25.448 C548.997,25.448 549.943,25.479 553.102,25.623 C556.021,25.756 557.607,26.244 558.662,26.654 C560.06,27.196 561.058,27.846 562.106,28.894 C563.154,29.942 563.803,30.938 564.346,32.338 C564.756,33.391 565.244,34.978 565.378,37.899 C565.522,41.056 565.552,42.003 565.552,50 C565.552,57.996 565.522,58.943 565.378,62.101 M570.82,37.631 C570.674,34.438 570.167,32.258 569.425,30.349 C568.659,28.377 567.633,26.702 565.965,25.035 C564.297,23.368 562.623,22.342 560.652,21.575 C558.743,20.834 556.562,20.326 553.369,20.18 C550.169,20.033 549.148,20 541,20 C532.853,20 531.831,20.033 528.631,20.18 C525.438,20.326 523.257,20.834 521.349,21.575 C519.376,22.342 517.703,23.368 516.035,25.035 C514.368,26.702 513.342,28.377 512.574,30.349 C511.834,32.258 511.326,34.438 511.181,37.631 C511.035,40.831 511,41.851 511,50 C511,58.147 511.035,59.17 511.181,62.369 C511.326,65.562 511.834,67.743 512.574,69.651 C513.342,71.625 514.368,73.296 516.035,74.965 C517.703,76.634 519.376,77.658 521.349,78.425 C523.257,79.167 525.438,79.673 528.631,79.82 C531.831,79.965 532.853,80.001 541,80.001 C549.148,80.001 550.169,79.965 553.369,79.82 C556.562,79.673 558.743,79.167 560.652,78.425 C562.623,77.658 564.297,76.634 565.965,74.965 C567.633,73.296 568.659,71.625 569.425,69.651 C570.167,67.743 570.674,65.562 570.82,62.369 C570.966,59.17 571,58.147 571,50 C571,41.851 570.966,40.831 570.82,37.631"></path></g></g></g></svg></div><div style="padding-top: 8px;"> <div style=" color:#3897f0; font-family:Arial,sans-serif; font-size:14px; font-style:normal; font-weight:550; line-height:18px;"> 在 Instagram 查看這則貼文</div></div><div style="padding: 12.5% 0;"></div> <div style="display: flex; flex-direction: row; margin-bottom: 14px; align-items: center;"><div> <div style="background-color: #F4F4F4; border-radius: 50%; height: 12.5px; width: 12.5px; transform: translateX(0px) translateY(7px);"></div> <div style="background-color: #F4F4F4; height: 12.5px; transform: rotate(-45deg) translateX(3px) translateY(1px); width: 12.5px; flex-grow: 0; margin-right: 14px; margin-left: 2px;"></div> <div style="background-color: #F4F4F4; border-radius: 50%; height: 12.5px; width: 12.5px; transform: translateX(9px) translateY(-18px);"></div></div><div style="margin-left: 8px;"> <div style=" background-color: #F4F4F4; border-radius: 50%; flex-grow: 0; height: 20px; width: 20px;"></div> <div style=" width: 0; height: 0; border-top: 2px solid transparent; border-left: 6px solid #f4f4f4; border-bottom: 2px solid transparent; transform: translateX(16px) translateY(-4px) rotate(30deg)"></div></div><div style="margin-left: auto;"> <div style=" width: 0px; border-top: 8px solid #F4F4F4; border-right: 8px solid transparent; transform: translateY(16px);"></div> <div style=" background-color: #F4F4F4; flex-grow: 0; height: 12px; width: 16px; transform: translateY(-4px);"></div> <div style=" width: 0; height: 0; border-top: 8px solid #F4F4F4; border-left: 8px solid transparent; transform: translateY(-4px) translateX(8px);"></div></div></div> <div style="display: flex; flex-direction: column; flex-grow: 1; justify-content: center; margin-bottom: 24px;"> <div style=" background-color: #F4F4F4; border-radius: 4px; flex-grow: 0; height: 14px; margin-bottom: 6px; width: 224px;"></div> <div style=" background-color: #F4F4F4; border-radius: 4px; flex-grow: 0; height: 14px; width: 144px;"></div></div></a><p style=" color:#c9c8cd; font-family:Arial,sans-serif; font-size:14px; line-height:17px; margin-bottom:0; margin-top:8px; overflow:hidden; padding:8px 0 7px; text-align:center; text-overflow:ellipsis; white-space:nowrap;"><a href="https://www.instagram.com/p/BtcljQuAk5a/?utm_source=ig_embed&utm_campaign=loading" style=" color:#c9c8cd; font-family:Arial,sans-serif; font-size:14px; font-style:normal; font-weight:normal; line-height:17px; text-decoration:none;" target="_blank">掩卷 佳句網(@pieceknow)分享的貼文</a> 於 <time style=" font-family:Arial,sans-serif; font-size:14px; line-height:17px;" datetime="2019-02-04T04:35:50+00:00">PST 2019 年 2月 月 3 日 下午 8:35</time> 張貼</p></div></blockquote> <script async src="//www.instagram.com/embed.js"></script>

對,快佔掉我這篇的1/3高度了,這還是拿掉解說的部份。

假設今天是編輯或企畫在維運網站,IG貼文一嵌就是嵌個快十篇,大概把複製的code貼上後,就很難找到其他內文在哪了。

不知道是不是考量維護的問題,IG嵌入的方式有提供API,可以讓人用GET的方式取回那一長串的code,再用js去append到內文中就行。

Instagram除了提供了iframe用的API,也提供了抓貼文圖片的API,還可以抓出small、medium、large等3種大小。

本篇會實作一個頁面,在貼上IG貼文網址後,產生iframe的樣式,以及抓出3種尺寸的圖片,最後的頁面網址在這,可以先玩玩看:

https://letswritetw.github.io/letswrite-instagram-embed/


IG抓iframe高度API

抓Instagram貼文的嵌入碼,有貼文的網址後,再AJAX到API就行,API的URL如下:

https://api.instagram.com/oembed?url=ig貼文網址

貼文網址的取得很簡單,每則貼文的右上角都有「…」的功能按鈕:

IG功能按鈕
IG功能按鈕

按下後,就會出現功能選單,裡面的複製連結就是了:

複製連結就是拿貼文網址
複製連結就是拿貼文網址

複製出來的網址會帶上utm的參數,記得刪掉。

最後GET的Url會像這樣:

https://api.instagram.com/oembed?url=http://instagr.am/p/fA9uwTtkSN/

參數除了貼文網址外,還有幾個:

  • maxwidth 嵌入的最大寬度限多少
  • hidecaption 是否要隱藏解說的部份,預設是false
  • omitscript 如果設成true,就要自己手動執行instgrm.Embeds.process()

instgrm.Embeds.process()這個要說一下,如果把API回來的html寫進頁面中,卻沒執行instgrm.Embeds.process,就會看見iframe的貼文變這樣:

沒執行instgrm.Embeds.process,一片空白
沒執行instgrm.Embeds.process,一片空白

要在把回來的html塞進div後,執行instgrm.Embeds.process(),貼文才會正常。


IG抓3種大小圖片

這個API又更單純了,API的URL如下:

ig貼文網址/media/?size=t

參數就只有一個,就是size。

size的值有3個:

  • s:small
  • m:medium
  • l:large

不填的話預設是m。

範例的URL如下:

https://instagram.com/p/fA9uwTtkSN/media/?size=t

傳回來的值,最後會看到一個 url: "https://instagram......",這個就是圖片的路徑了。


本篇Demo及原始碼

最後再附上一次Demo的頁面網址:

https://letswritetw.github.io/letswrite-instagram-embed/

直接看頁面的原始碼就行,或是直接看Github上的:

https://github.com/letswritetw/letswrite-instagram-embed


Summary
Instagram Embedding 抓iframe高度及3種大小圖片
Article Name
Instagram Embedding 抓iframe高度及3種大小圖片
Description
本篇大綱:嵌入Instagram的方式、IG抓iframe高度API、IG抓3種大小圖片、本篇Demo及原始碼。IG嵌入的方式有提供API,可以用GET的方式取回code,再append到內文中。IG也提供了抓貼文圖片的API,還可以抓出small、medium、large等3種大小。
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Michael
Michael

請問instgrm這個參數是哪裡來的?