InboxSDK -无法通过composeView对象进行attachFiles

Question

我试图通过composeView对象使用因博克附加一个附件。我使用以下代码从远程url获取blob对象。

// FUNCTION TO OPEN A NEW COMPOSE BOX ONCE THE ATTACHMENT BLOB IS OBTAINED FROM REMOTE URL.
function openComposeBox(sdk, blob){
  handler = sdk.Compose.registerComposeViewHandler(function(composeView){
     if(blob != null){
       composeView.attachFiles([blob]);
       composeView.setSubject("Testing");
    }
 });
}

// FETCHING ATTACHMENT FILE FROM REMOTE URL
var file_btn_url = "https://api.hummingbill.com/system/invoices/invoice_files/000/033/393/original/abracadabra.txt";
var file_name = file_btn_url.split("/");
file_name = file_name[file_name.length-1];
file_type = /[^.]+$/.exec(file_name);

var blob = null;
var xhr = new XMLHttpRequest();
xhr.open("GET", file_btn_url);
xhr.responseType = "blob";                                       
xhr.onload = function()
{
       blob = xhr.response;
    // blob.lastModifiedDate = new Date(); // Since it's not necessary to have it assigned, hence commented.
        blob.name = file_name;                                          
        console.log(blob);
      openComposeBox(sdk, blob);

}
xhr.send();

它显示了附件失败的错误。

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虽然我有正确的blob对象格式，但按照文档的要求，是正确的。

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根据文档，我已经为blob设置了文件名，并将它在数组中传递给attachFiles函数。请你调查一下，让我知道我缺少了什么吗？

Answer 1

张贴解决方案。代码与问题相同，只是略有变化，我们将blob转换为一个文件，以使其工作。

//... Same as the code in the question


// Fetching attachment file from remote url
var file_btn_url = "https://api.hummingbill.com/system/invoices/invoice_files/000/033/393/original/abracadabra.txt";
var file_name = file_btn_url.split("/");
file_name = file_name[file_name.length-1];
file_type = /[^.]+$/.exec(file_name);

var blob = null;
var xhr = new XMLHttpRequest();
xhr.open("GET", file_btn_url);
xhr.responseType = "blob";                                       
xhr.onload = function()
{
     // Solution: Convert the obtained blob to a file
     // Pass the file to openComposeBox
     blob = new Blob([xhr.response], { type: xhr.responseType });
     var file = new File([blob], file_name);
     blob.name = file_name;                     
     openComposeBox(sdk, file);
}
xhr.send();

希望这能有所帮助。干杯!