JavaScript API methods for parsing and uploading files.
Methods
Use these methods to parse CSV, JSON, and XLSX files. Note that these methods are not available within transformers.
fileUtils.parseCSV()
Parses a CSV file that resolves to the file's contents.
Syntax
fileUtils.parseCSV(value, options)
value required
A string to specify the Base64-encoded CSV file.
options optional
An object that controls settings for the file parsing.
| Parameter | Type | Description |
|---|---|---|
header | boolean (optional) | Whether the CSV file contains a header. Defaults to true. |
Return value
Returns a Promise that resolves to a list of objects with one key per column.
Example
Parse the contents of the file uploaded using uploadFileButton. The results array represents each row of the CSV, where results[0] is the first row.
const results = await fileUtils.parseCSV(uploadFileButton.value[0]);
fileUtils.parseJSON()
Parses a JSON file that resolves to the file's contents.
Syntax
fileUtils.parseJSON(value)
value required
A string to specify the Base64-encoded JSON file.
Return value
Returns a Promise that resolves to an object with the file's contents.
Example
Parse the contents of the file uploaded using uploadFileButton into the results array.
const results = await fileUtils.parseJSON(uploadFileButton.value[0]);
fileUtils.parseXLSX()
Parses an XLSX file that resolves to the file's contents.
Syntax
fileUtils.parseXLSX(value)
value required
A string to specify the Base64-encoded XLSX file.
Return value
Returns a Promise that resolves to an object with the file's contents. The result contains an object for each sheet with a nested object for each row.
Example
Parse the contents of the file uploaded using uploadFileButton into the results array.
const results = await fileUtils.parseXLSX(uploadFileButton.value[0]);