I have created a sample HTML(contains js, css and images) guide. I want to upload this html file to CMS(content management System) to edit content later. After that I will retrieve html content from CMS System and load it in my iOS app. So my guide will not be static and I don't have to rebuild for my iOS app every time. I reviewed content-ful api service, but can't find a way to upload html file. is this possible ?
Please help me on this? or any other ideas?
I think it's not unfortunately possible. In your case it's easier to add content manually to your Contentul space and then retrieve the content within web application using JavaScript SDK. If you're going to create iOS app as well, then Objective-C SDK and Swift SDK might be useful for utilizing the content in future.