The Transformer library provides a comprehensive set of tools for transforming data between various formats, including base64 strings, Uint8Arrays, Blobs, and File objects. It also includes a FormDataTransformer class for converting between FormData objects and JavaScript objects.
It includes the following features:
- Convert a Uint8Array to a Blob
- Convert a File to a Blob
- Convert a base64 string to a Blob
- Transform data into a FormData object
- Revert a FormData object into a JavaScript object
- Convert a base64 string to a File
- Convert a File to a base64 string
- Convert a base64 string to a Uint8Array
- Convert a Uint8Array to a base64 string
- Convert a Blob to a base64 string or ArrayBuffer
- Convert a File to a base64 string
- Convert a base64 string to a File
- Convert a Uint8Array to a File
To install the library, run the following command:
npm install @easylibs/transformer
The BlobTransformer
interface provides methods for converting Uint8Arrays, Files, and base64 strings to Blobs.
To convert a Uint8Array to a Blob, use the fromUint8Array()
method:
const blobTransformer = new Transformer.BlobTransformer();
const blob = blobTransformer.fromUint8Array(uint8Array);
To convert a File to a Blob, use the fromFile()
method:
const blobTransformer = new Transformer.BlobTransformer();
const blob = blobTransformer.fromFile(file);
To convert a base64 string to a Blob, use the fromBase64String()
method:
const blobTransformer = new Transformer.BlobTransformer();
const blob = blobTransformer.fromBase64String(base64String);
The FormDataTransformer
interface provides methods for transforming data into a FormData object and reverting a FormData object into a JavaScript object.
To transform data into a FormData object, use the transform()
method:
const formDataTransformer = new Transformer.FormDataTransformer();
const formData = formDataTransformer.transform();
To revert a FormData object into a JavaScript object, use the reverse()
method:
const formDataTransformer = new Transformer.FormDataTransformer();
const object = formDataTransformer.reverse();
The FormDataTransformer
interface also provides an option()
method that allows you to specify a transformation option. The
The Base64Transformer class provides methods for converting between base64 strings and other file formats.
The toFile()
method converts a base64 string into a File object.
const base64String = "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAUAAAAFCAYAAACNbyblAAAAHElEQVQI12P4//8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU5ErkJggg==";
const file = new Transformer.Base64Transformer().toFile(base64String);
The fromFile()
method converts a File object into a base64 string.
const file = new File(["Hello, world!"], "hello.txt", { type: "text/plain" });
const base64String = await new Transformer.Base64Transformer().fromFile(file);
The toUint8Array()
method converts a base64 string into a Uint8Array.
const base64String = "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAUAAAAFCAYAAACNbyblAAAAHElEQVQI12P4//8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU5ErkJggg==";
const uint8Array = new Transformer.Base64Transformer().toUint8Array(base64String);
The fromUint8Array()
method converts a Uint8Array into a base64 string.
const uint8Array = new Uint8Array