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October 6, 2020 08:11
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| const getBase64 = file => { | |
| return new Promise((resolve, reject) => { | |
| const reader = new FileReader(); | |
| reader.onload = () => resolve(reader.result); | |
| reader.onerror = error => reject(error); | |
| reader.readAsDataURL(file); | |
| }); | |
| }; | |
| async function onChangeFile(e) { | |
| if (!csvLoading) { | |
| const csv = e.target.files[0]; | |
| csv && handleCsvLoading(true); | |
| handleCsvName(csv.name); | |
| const base64 = await getBase64(csv); | |
| handleCsv(base64); | |
| handleCsvLoading(false); | |
| } | |
| } | |
| /* | |
| <label | |
| htmlFor="csv-upload" | |
| className={csvName ? 'label-value' : 'label-placeholder'} | |
| > | |
| {!csvName && !csvLoading | |
| ? 'Select File' | |
| : !csvLoading | |
| ? csvName | |
| : 'loading...'} | |
| </label> | |
| <input | |
| type="file" | |
| className="form-control" | |
| id="csv-upload" | |
| placeholder="Select File" | |
| accept=".csv" | |
| onChange={onChangeFile} | |
| /> | |
| */ |
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