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Angular 8 Typescript Build CSV from JSON
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import {Injectable} from '@angular/core'; | |
@Injectable({ | |
providedIn: 'root' | |
}) | |
export class CsvService { | |
/* | |
object in array = line | |
Execute: | |
- 1.) buildCsv with any array filled with content objects | |
- 2.) execute downloadCsv method to download the csv from the browser | |
*/ | |
public buildCsv(items: Array<any>): string { | |
let csvContent = 'data:text/csv;charset=utf-8,'; | |
let headerRow = ''; | |
for (let [key, value] of Object.entries(items[0])) { | |
headerRow += key + ';'; | |
} | |
if (headerRow.length > 1) { | |
headerRow = headerRow.substr(0, headerRow.length - 1); | |
} | |
csvContent = csvContent + headerRow + '\n'; | |
for (let item of items) { | |
let row = ''; | |
for (let [key, value] of Object.entries(item)) { | |
row += value + ';'; | |
} | |
if (row.length > 1) { | |
row = row.substr(0, row.length - 1); | |
} | |
csvContent = csvContent + row + '\n'; | |
} | |
return csvContent; | |
} | |
public downloadCsv(csvContent: string) { | |
let encodeUri = encodeURI(csvContent); | |
let link = document.createElement('a'); | |
link.setAttribute('href', encodeUri); | |
link.setAttribute('download', 'csvData.csv'); | |
document.body.appendChild(link); | |
link.click(); | |
} | |
} |
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