File Upload Salesforce Over 10 Mb File Upload Salesforce Using Async
SFDC Panther
Amit Singh aka @sfdcpanther, a Salesforce Technical Architect, Consultant with over 7 years of experience in Salesforce engineering. 19x Certified. Blogger, Speaker, and Instructor.
- Posted on December 22, 2020
- in Lightning, Lightning Web Components, Salesforce
How to develop custom File Uploader using Lightning Web Component?
Hi #Ohana,
In this weblog mail, we will talk about how to develop a custom file Upload using Lightning Spider web Component.
We will create a Component that will upload the file nether the file object instead of Attachment. The reason we are doing, Salesforce is deprecating the attachments.
We volition use FileReader class of JavaScript to read the File so ship that to Salesforce.
We have designed the component which volition sit down within the tape page but if you want to employ at different place and then make the adjustment accordingly.
The main purpose of this component is to provide the ability to upload the Files even if you exercise not know the record Id and the record Id volition exist generated at run fourth dimension.
Stride 1 – Create the Noon Class
Step 2 – Create Lightning Spider web component
Become the lawmaking from the below file
Thanks for reading 🙂 #DeveloperGeeks #SalesforceDeveloper #SfdcPanther #AskPanther
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Source: https://sfdcpanther.com/custom-file-uploader-using-lightning-web-component/
25 thoughts on "How to develop custom File Uploader using Lightning Web Component?"
Bearding
This component would work for Guest user ?
Howdy,
I accept not tried this simply you might need to make some tweaks to go far piece of work for guest users.
Rahul
Hi
tin you lot please tell me how nosotros change Upload files text to Fastened file in lightning input type='file'
thanks in adv.
That is something which is provided by Salesforce. If you wanted to change that yous tin endeavour to do a hack using CSS. I have not tried this so I will not be able to provide you lot the code only you can try it.
Hello SFDC Panther. Astonishing tutorial, it really helped me a lot!
However I have one question. My requirement was to create a possibility for a user to upload upward to 9MB file size. I've googled it a fleck and find out that I needed async call for it (I used @future) on appendToFile method.
Yet it doesn't upload whole document. So if a document is eight.5 MB, it will once upload seven.5, and 2nd time maybe viii.1 … yous become the point. Practise you know why this is happening and mayhap you can requite me some workaround on it?
Thanks in advance and go on up the skillful work 🙂
Hi Matriarch,
These are the Limitations of the JavaScript to upload the file which has Max Size Limit.
Ashish
Hi SFDC Panther,
I take a query for file upload function. If we are using file upload in a grade, File is going to get uploaded before the class gets saved. Suppose, if the user changes listen to non click on submit and clicks clear, is there whatsoever way we can delete the form ?
Any aid will be much appreciated. Thanks in Accelerate
Are you able to elaborate more on your query, what you are trying to practice?
Arpit Gupta
Tin I have this code on my email, I am in hurry and need to fix one functionality asap, Thanks in advance, 1 query I have a requirement to upload file upto 2GB which is saleaforce limit, will it exist possible past this?
Hello,
Are you having any issues while using the lawmaking as the lawmaking is already there in the blog post?
And using this approach y'all can not upload more than 10MB file.
Arpit Gupta
Howdy Sir,
Its there in the Web log but I am non able to Copy it, also I need to upload the file upto 2GB(not ten MB) and too I accept to transport information technology to apex(using chunking), Can you help me with whatever lawmaking snippet or blog.
Regards:
Arpit
The code is hosted in GitHub and to get the code you need to click on the View Raw button to see the code and apply it. To upload the higher file of 2GB ( first affair if you lot will do your browser will exist frozen after 30-40 MB size ). And if yet want to upload so you accept a Lighting-file upload standard lightning component which y'all tin can use.
Nitin Shinde
How-do-you-do,
I have used this code for site user, earlier information technology worked. Now started giving no rows for assignment error .
bulletin: "List has no rows for assignment to SObject"
stackTrace: "Grade.FileUploadService.saveFiles: line 32, cavalcade 1\nClass.FileUploadService.saveTheChunkFile: line viii, column 1"
I debugged and checked that Content version id is created yet query is returning null.
Regards,
Nitin
Delight check your query and also the access level of the files that y'all are trying to access.
Is it possible to update the linked entity later save?
I have a checkbox I would like to update on the linked record?
I know this is probably a really unproblematic thing to exercise but very new to Noon development.
K
Yeah, you can update.As you already have the recordId for the Parent Tape y'all tin can update it.
Bearding
Smashing work, I have ane concern though, if the file size crosses 6MB wouldn't we run into heapsize limit? Instead nosotros can take a VF page embedded within the component and update the versiondata using post
Yes. With a big file size, it volition create a trouble.Yous can requite your version a try
Shivukumar
Hello SFDC Panther,
I take created a LWC to upload file using Lightning file uploader, when we effort to download or preview it, and downloaded file is non opening.
Could yous please aid me to effigy out what might exist wrong
Information technology volition be more helpful for me as I am new to salesforce.
if y'all I tin can provide y'all my code
Any help volition exist much appreciated
Cheers in advance
It'due south not possible for me to review the code every bit I take other things to do. Nonetheless if you have big size files so information technology will not be displayed in the previewed. When are yous downloading the file make sure it is using right extension to save.
AP
How-do-you-do Amit
Could you please requite insights near the file size and chunk size. I'm unable to notice salesforce document which tin aid to empathise why chunksize is called equally 750 kb.
The file chunk is not related to Salesforce it is related to JavaScript. Nosotros are uploading the file in chunks as uploading the file at once is not supported.
Shubham
This was helpful thankyou very much!
Prince Jain
Tin can you provide test class of this code
You take to develop the course