EE_ChannelEntry_Sevice_Snippet.html

//You can create and update the Channel Entry using below Model query.
//For Creating the Entry :-

$entry = ee('Model')->make('ChannelEntry');
$entry->Channel = $channel;
$entry->site_id =  ee()->config->item('site_id');
$entry->author_id = ee()->session->userdata('member_id');
$entry->ip_address = ee()->session->userdata['ip_address'];
$entry->versioning_enabled = $channel->enable_versioning;
$entry->sticky = FALSE;
$entry->title = $title_url_title;
$entry->url_title = preg_replace("/[\s_]/", "-", $title_url_title);
$entry->entry_date = ee()->localize->now;
$entry->edit_date = ee()->localize->now;
$entry->save();

/* Array which contains your Field Data */
$entry->set($entryFieldArray);

//For Updating the Entry :-

$entry = ee('Model')->get('ChannelEntry', $id)
        ->with('Channel')
        ->filter('site_id', ee()->config->item('site_id'))
        ->first();

/* Array which contains your Field Data which need to update */
$entry->set($entryFieldArray);


//Can also do:
//You can still do this:

$entry = ee('Model')->make('ChannelEntry', $data);
$entry -> save();

//Just make sure you have all the required info in the $data array.