blocks|key|4737510|text|当我将文件或url附加到Trello卡上时，我只对url使用POST，如下所示(JavaScript)：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|4737511|var+id+=+'something';
var+attach+=+'https://www.cs.tut.fi/~jkorpela/forms/file.html';

var+payload+=+{"url":+attach};
var+blob+=+new+Blob([JSON.stringify(payload)],+{type:+'application/json'});
var+url+=+'https://api.trello.com/1/cards/'%2Bid%2B'/attachments?key='%2BAPI_KEY%2B'&token='%2BTOKEN;

var+xhttp+=+new+XMLHttpRequest();+++
xhttp.open("POST",+url,+true);
xhttp.send(blob);|code-block|syntax|javascript|4737512|在此之后，当我获得卡的JSON时，它是这样的：|4737513|{"id":"xxx...",+...+
+"actions":[{
+++"id":"yyy...",
+++"idMemberCreator":"...",
+++"data":{
+++++"board":{+...
+++++"attachment":{
+++++++"url":"https://www.cs.tut.fi/~jkorpela/forms/file.html",
+++++++"name":"https://www.cs.tut.fi/~jkorpela/forms/file.html",
+++++++"id":"zzz..."}},+...|4737514|您可以通过在url末尾添加.json来获取卡片的JSON。你可以看到name和url是一样的，但是这里没有mimeType。在the+documentation中找不到它。您是通过哪种方式“获取卡数据”的？如果您使用JavaScript，上面的代码可能会对您有所帮助。|4737515|至于定制卡片的网址，我什么都不知道，我猜这是不可能的。|4737516|entityMap|0|LINK|mutability|MUTABLE|url|https://developers.trello.com/advanced-reference/card#post-1-cards-card-id-or-shortlink-attachments^0|P|3|0|0|0|0|D|5|Y|4|13|3|1H|8|1R|H|0|0|0^^$0|@$1|2|3|4|5|6|7|10|8|@$9|11|A|12|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|13|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|14|8|@]|D|@]|E|$]]|$1|M|3|N|5|H|7|15|8|@]|D|@]|E|$I|J]]|$1|O|3|P|5|6|7|16|8|@$9|17|A|18|B|C]|$9|19|A|1A|B|C]|$9|1B|A|1C|B|C]|$9|1D|A|1E|B|C]]|D|@$9|1F|A|1G|1|1H]]|E|$]]|$1|Q|3|R|5|6|7|1I|8|@]|D|@]|E|$]]|$1|S|3|-4|5|6|7|1J|8|@]|D|@]|E|$]]]|T|$U|$5|V|W|X|E|$Y|Z]]]]

When I attach a file or url to a Trello card, I use POST with <code>url</code> only, like this (JavaScript):

<pre><code>var id = 'something';
var attach = 'https://www.cs.tut.fi/~jkorpela/forms/file.html';

var payload = {"url": attach};
var blob = new Blob([JSON.stringify(payload)], {type: 'application/json'});
var url = 'https://api.trello.com/1/cards/'+id+'/attachments?key='+API_KEY+'&amp;token='+TOKEN;

var xhttp = new XMLHttpRequest(); 
xhttp.open("POST", url, true);
xhttp.send(blob);
</code></pre>

And after this when I get the JSON of the card, It's something like this:

<pre><code>{"id":"xxx...", ... 
 "actions":[{
 "id":"yyy...",
 "idMemberCreator":"...",
 "data":{
 "board":{ ...
 "attachment":{
 "url":"https://www.cs.tut.fi/~jkorpela/forms/file.html",
 "name":"https://www.cs.tut.fi/~jkorpela/forms/file.html",
 "id":"zzz..."}}, ...
</code></pre>

You can get cards' JSON via adding <code>.json</code> at the end of the url. You can see <code>name</code> is the same as <code>url</code> but no <code>mimeType</code> here. And it's nowhere found in <a href="https://developers.trello.com/advanced-reference/card#post-1-cards-card-id-or-shortlink-attachments" rel="nofollow noreferrer">the documentation</a>. In which way did you 'fetch the card data?' If you use JavaScript, the above code maybe help you.

And as for customization of the url of cards, I don't know anything and I guess it's impossible.

blocks|key|1278820|text|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1278821|+{文件:+file_contents，'BuildSheet.html'：文件名，mimeType：'text/html‘}|blockquote|1278822|1278823|1278824|您尝试过使用密钥name吗？reference|offset|length|style|CODE|1278825|entityMap|0|LINK|mutability|MUTABLE|url|https://developers.trello.com/advanced-reference/card#post-1-cards-card-id-or-shortlink-attachments^0|0|0|0|0|8|4|E|9|0|0^^$0|@$1|2|3|-4|4|5|6|T|7|@]|8|@]|9|$]]|$1|A|3|B|4|C|6|U|7|@]|8|@]|9|$]]|$1|D|3|-4|4|5|6|V|7|@]|8|@]|9|$]]|$1|E|3|-4|4|5|6|W|7|@]|8|@]|9|$]]|$1|F|3|G|4|5|6|X|7|@$H|Y|I|Z|J|K]]|8|@$H|10|I|11|1|12]]|9|$]]|$1|L|3|-4|4|5|6|13|7|@]|8|@]|9|$]]]|M|$N|$4|O|P|Q|9|$R|S]]]]

<blockquote>
 { file: file_contents, 'BuildSheet.html': filename, mimeType: 'text/html' }
</blockquote>

Have you tried using the key <code>name</code>? <a href="https://developers.trello.com/advanced-reference/card#post-1-cards-card-id-or-shortlink-attachments" rel="nofollow noreferrer">reference</a>

blocks|key|1278830|text|Trello+API似乎忽略了mimeType参数，而是在响应体中使用Content-Disposition参数。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1278831|如下所示的实体工作：|1278832|------WebKitFormBoundarydjg0lJJiuTZmCppw
Content-Disposition:+form-data;+name="file";+filename="image.png"
Content-Type:+image/png|code-block|syntax|javascript|1278833|下面是使用节点请求库的相应代码：|1278834|async+function+attachFileToTrelloCard(id:+string,+file:+Buffer,+fileName:+string,+mimeType:+string)+{
++const+options+=+{
++++method:+'POST',
++++url:+`https://api.trello.com/1/cards/${id}/attachments`,
++++formData:+{
++++++file:+{
++++++++value:+file,
++++++++options:+{
++++++++++filename:+fileName,
++++++++++contentType:+mimeType
++++++++}
++++++},
++++++token:+process.env.TRELLO_API_TOKEN,
++++++key:+process.env.TRELLO_API_KEY,
++++++name:+fileName,
++++++mimeType
++++}
++}

++return+await+request(options)
}|1278835|entityMap^0|F|8|Z|J|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@$9|T|A|U|B|C]|$9|V|A|W|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|X|8|@]|D|@]|E|$]]|$1|H|3|I|5|J|7|Y|8|@]|D|@]|E|$K|L]]|$1|M|3|N|5|6|7|Z|8|@]|D|@]|E|$]]|$1|O|3|P|5|J|7|10|8|@]|D|@]|E|$K|L]]|$1|Q|3|-4|5|6|7|11|8|@]|D|@]|E|$]]]|R|$]]

It seems like the Trello API ignores the <code>mimeType</code> parameter, and instead uses the <code>Content-Disposition</code> parameter in the response body.

A body like the following works:

<pre><code>------WebKitFormBoundarydjg0lJJiuTZmCppw
Content-Disposition: form-data; name="file"; filename="image.png"
Content-Type: image/png

</code></pre>

Here is the corresponding code, using the node request library:

<pre class="lang-js prettyprint-override"><code>async function attachFileToTrelloCard(id: string, file: Buffer, fileName: string, mimeType: string) {
 const options = {
 method: 'POST',
 url: `https://api.trello.com/1/cards/${id}/attachments`,
 formData: {
 file: {
 value: file,
 options: {
 filename: fileName,
 contentType: mimeType
 }
 },
 token: process.env.TRELLO_API_TOKEN,
 key: process.env.TRELLO_API_KEY,
 name: fileName,
 mimeType
 }
 }

 return await request(options)
}
</code></pre>

I am using the Trello API to upload (and attach) files to a card.

I make a POST to <a href="https://api.trello.com/1/cards/my-card-id/attachments" rel="nofollow noreferrer">https://api.trello.com/1/cards/my-card-id/attachments</a>

Message body is JSON

<pre><code>{ file: file_contents, 'BuildSheet.html': filename, mimeType: 'text/html' }

file_contents is a string that contains the body of the file I want to attach.
</code></pre>

That works. The file gets uploaded and attached. When I fetch the card data, this is what I see regarding this attachment.

<pre><code>{"id":"58a496bc751c0c2fa260630f",
 "bytes":3291,
 "date":"2017-0215T17:58:20.881Z",
 "edgeColor":null, 
 "idMember":"55240806b8ca85db897253c4",
 "isUpload":true,
 "mimeType":"text/html",
 "name":"BuildSheet.html",
 "previews":[],
 "url":"https://trello-attachments.s3.amazonaws.com/589ca323806c1d80cc03ea12/589ceda619d5936e8428f15b/1f62074b6700e61e611a90beaa8c2c73/Upload"}
</code></pre>

You can see that mimeType is set correctly. name is also correct. However the url doesn't use the filename like it does if you upload from inside the UI. So the file doesn't have a .html extension.

When I download the file, it contains this header

<pre><code>Content-Type: application/octet-stream
</code></pre>

It should be text/html. This causes the browser to download the file instead of display it.

Am I doing something wrong? Has anyone else had this problem?

Additionally is there a way to get Trello to use the file name when it constructs the url?

Trello attachment serving wrong Content-Type when attachment uploaded via the API

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我正在使用Trello API将文件上传(和附加)到卡上。我在上发了一个帖子消息正文为JSON{ file: file_contents, 'BuildSheet.html': filename, mimeType: 'text/html' }file_contents is a string that contain...

问通过API上传附件时，Trello附件服务内容类型错误
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问通过API上传附件时，Trello附件服务内容类型错误EN