I need to display th elist of the attachment of a case in a lightning component.

Here is the lightning component :

 <aura:attribute name="recordId" type="Id" required="true"/>
<aura:attribute name="files" type="List"/>

<aura:handler name="init" value="{!this}" action="{!c.doInit}"/>

<div class="LC11Container" aura:id="listFiles">

    <c:fileUpload parentId="{!v.recordId}"/>

    <aura:iteration items="{!v.files}" var="currentFile">

        <h3 class="slds-truncate" title="{!currentFile.Name}">
            <a href="{!'/servlet/servlet.FileDownload?file='+currentFile.Id}">{!currentFile.Name}</a>

The javascript controller of the component :

doInit : function(component, event, helper) {
    var vAction = component.get("c.getAllFiles");
    console.log('############# component.get("v.recordId") : ' + component.get('v.recordId'));
        pCaseId : component.get('v.recordId')
    vAction.setCallback(this, function(pResponse) {
        var vState = pResponse.getState();
        if (vState === "SUCCESS") { 
            component.set('v.files', pResponse.getReturnValue());
        } else {
            var vErrors = pResponse.getError();
            if (vErrors) {
                if (vErrors[0] && vErrors[0].message) {
                    console.log("Error message: " + vErrors[0].message);
            } else {
                console.log("Unknown error");

And the apex controller, that query the attachments and return a wrapper class :

public class Doc {
    public String name;
    public DateTime fileDate;
    public String fileId;
    public String fileType;

public static List<Doc> getAllFiles(String pCaseId) {
    List<Doc> vDocs = new List<Doc>();

    List<Attachment> lAtt = [Select Id, Name, ContentType, LastModifiedDate, BodyLength
                            from Attachment 
                            where ParentID=:pCaseId];

    for(Attachment att : lAtt){
        Doc vDoc = new Doc();
        vDoc.fileId = att.Id;
        vDoc.name = att.Name;
        vDoc.fileType = att.ContentType;
        vDoc.fileDate = att.LastModifiedDate;


    System.debug('### vDocs : ' + vDocs);

    return vDocs;

So this display me a list of attachments (the names) but when I click it it displays the document but did not downoload it or allow me to chose to download it on close it. It juste display the document and I can't even close it without return to last page with the browser.

Can I display link to download the document ?

  • why cant you try "lightning:fileUpload"???
    – Annappa PH
    Commented May 23, 2018 at 10:09
  • Because I have to work with attachments and not files ... I know that there is better to work with files but for now I havn't the choice unfortunately
    – dou
    Commented May 23, 2018 at 11:55

2 Answers 2


Make sure you've set the download="{!attachment.Name}" on the link. Without it, the browser will treat it as a page, and not a file.


<aura:attribute name="recordId" type="Id" required="true"/> <aura:attribute name="files" type="List"/>

<aura:handler name="init" value="{!this}" action="{!c.doInit}"/>

<c:fileUpload parentId="{!v.recordId}"/>

<aura:iteration items="{!v.files}" var="currentFile">

        <h3 class="slds-truncate" title="{!currentFile.name}">
            <a href="{!'/servlet/servlet.FileDownload?file='+currentFile.fileId}">{!currentFile.name}</a>

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