@churchapps/apphelper/dist/helpers/FileHelper.js

Library of helper functions for React and NextJS ChurchApps

import axios from "axios";
export class FileHelper {
    static dataURLtoBlob(dataurl) {
        const arr = dataurl.split(","), mime = arr[0].match(/:(.*?);/)[1], bstr = atob(arr[1]);
        let n = bstr.length;
        const u8arr = new Uint8Array(n);
        while (n--) {
            u8arr[n] = bstr.charCodeAt(n);
        }
        return new Blob([u8arr], { type: mime });
    }
}
FileHelper.postPresignedFile = (presigned, uploadedFile, progressCallback) => {
    const formData = new FormData();
    //formData.append("key", presigned.key); //no longer needed with new aws sdk
    formData.append("acl", "public-read");
    formData.append("Content-Type", uploadedFile.type);
    for (const property in presigned.fields)
        formData.append(property, presigned.fields[property]);
    formData.append("file", uploadedFile);
    const axiosConfig = {
        headers: { "Content-Type": "multipart/form-data" },
        onUploadProgress: (data) => {
            progressCallback(Math.round((100 * data.loaded) / data.total));
        }
    };
    return axios.post(presigned.url, formData, axiosConfig);
};
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