FileTransfer.prototype.upload = function()

in www/FileTransfer.js [88:160]
53 lines of code
11 McCabe index (conditional complexity)

FileTransfer.prototype.upload = function (filePath, server, successCallback, errorCallback, options, trustAllHosts) {
    argscheck.checkArgs('ssFFO*', 'FileTransfer.upload', arguments);
    // check for options
    let fileKey = null;
    let fileName = null;
    let mimeType = null;
    let params = null;
    let chunkedMode = true;
    let headers = null;
    let httpMethod = null;
    const basicAuthHeader = getBasicAuthHeader(server);
    if (basicAuthHeader) {
        server = server.replace(getUrlCredentials(server) + '@', '');

        options = options || {};
        options.headers = options.headers || {};
        options.headers[basicAuthHeader.name] = basicAuthHeader.value;
    }

    if (options) {
        fileKey = options.fileKey;
        fileName = options.fileName;
        mimeType = options.mimeType;
        headers = options.headers;
        httpMethod = options.httpMethod || 'POST';
        if (httpMethod.toUpperCase() === 'PUT') {
            httpMethod = 'PUT';
        } else {
            httpMethod = 'POST';
        }
        if (options.chunkedMode !== null || typeof options.chunkedMode !== 'undefined') {
            chunkedMode = options.chunkedMode;
        }
        if (options.params) {
            params = options.params;
        } else {
            params = {};
        }
    }

    const fail =
        errorCallback &&
        function (e) {
            const error = new FileTransferError(e.code, e.source, e.target, e.http_status, e.body, e.exception);
            errorCallback(error);
        };

    const self = this;
    const win = function (result) {
        if (typeof result.lengthComputable !== 'undefined') {
            if (self.onprogress) {
                self.onprogress(newProgressEvent(result));
            }
        } else {
            if (successCallback) {
                successCallback(result);
            }
        }
    };
    exec(win, fail, 'FileTransfer', 'upload', [
        filePath,
        server,
        fileKey,
        fileName,
        mimeType,
        params,
        trustAllHosts,
        chunkedMode,
        headers,
        this._id,
        httpMethod
    ]);
};