How to add an uploaded file to a list of already uploaded files in Vue? - file-upload

Question

I currently have a file uploader that accepts a single CSV file. Then with axios I POST such file to the server and everything works just fine. What I'm not being able to achieve is being able to upload another CSV that will get added to the list of CSVs uploaded. I'm not talking about uploading various files at once, I'm taking about uploading different files at different points in time.
This is the method that is used to select a CSV file in the .vue file.
staticCampaignCSVSelected: function (file) {
console.log('campaign-detail.vue#staticCampaignCSVSelected', file)
let vc = this
vc.selectedHeuristicId = -1
Campaign.uploadStaticCSV(vc.campaign, file[0])
.then(
function (data) {
alert('CSV cargado con exito')
}
)
.catch(
function (err, data) {
console.log("campaign-detail#staticCampaignCSVSelected - catch", err.response)
alert(err.response.data.error)
}
)
},
This is the function that I have in some other JS file to POST to the API:
function uploadStaticCSV (campaign, csv) {
console.log('Campaign#uploadStaticCSV', campaign, csv)
//long list of assertions
let formData = new FormData()
formData.append('csv', csv)
return axios.post(API.campaignUploadStaticCSV(campaign.id), formData)
}
And this is the function I have in my endpoints.js file:
campaignUploadStaticCSV: function (id) { return this.campaign(id) + '' + '/csv' },
I haven't found a way to properly pass a[file] array as a parameter to the functions, which is what I believe I need to somehow do.
Any help would be appreciated :)

Answer 1

As far as i understood your question you need a way to pass a file from browser interface to your staticCampaignCSVSelected(file) method. If so why not to use an input model or a simple event or a watcher. E.g.
<input type="file" #input="staticCampaignCSVSelected($event.target.files[0])" />
But also i see a mistake in your code. You should append .then().catch() callbacks to axios.post() itself but not to Campaign.uploadStaticCSV() method.
And
return axios.post()
will not return a server response. You have to handle it in
axios.post().then(response => {})
callback