function saveplotlyconfig(plotly_domain,plotly_streaming_domain)

% Save plotly config info.

% Plotly config info are saved as JSON strings

% in ~/.plotly/.config

% catch missing input arguments

if nargin < 1

error('plotly:saveconfig', ['Incorrect number of inputs. ' ...

'Please save your configuration as follows: >> ' ...

'saveplotlyconfig(plotly_domain,[optional]' ...

'plotly_streaming_domain)']);

end

% if the config file exists, then load it up

try

config = loadplotlyconfig();

catch

config = struct();

end

% Create the .plotly folder

userhome = getuserdir();

plotly_config_folder = fullfile(userhome, '.plotly');

plotly_config_file = fullfile(plotly_config_folder, '.config');

[status, mess, messid] = mkdir(plotly_config_folder);

if (status == 0)

if (~strcmp(messid, 'MATLAB:MKDIR:DirectoryExists'))

error('plotly:saveconfig', ['Error saving configuration ' ...

'folder at ' plotly_credentials_folder ': ' mess ...

', ' messid '. Get in touch at chris@plot.ly for ' ...

'support.']);

end

end

fileIDConfig = fopen(plotly_config_file, 'w');

if (fileIDConfig == -1)

error('plotly:saveconfiguration', ['Error opening ' ...

'configuration file at ' plotly_credentials_file '. ' ...

'Get in touch at chris@plot.ly for support.']);

end

% get user credenitals

[username, api_key] = signin;

switch nargin

case 1

config.plotly_domain = plotly_domain;

signin(username, api_key, plotly_domain);

case 2

config.plotly_domain = plotly_domain;

signin(username, api_key, plotly_domain);

config.plotly_streaming_domain= plotly_streaming_domain;

otherwise %if neither endpoints are specified, no worries!

end

config_string = m2json(config);

%write the json strings to the cred file

fprintf(fileIDConfig,'%s',config_string);

fclose(fileIDConfig);