The coupon images should not be included in a coupon post since only the buyer should access the images.

So coupon images should be stored somewhere secure. I use Firebase cloud storage.

Temporarily I created a button to upload coupon images to cloud storage.

Now check if the image has been uploaded.

Yes. it is successful.

The folder name is made by combining the seller and permlink of the coupon post.

The image can be downloaded with the download link, and it should be known only to a buyer.

Next time I will show creation of a coupon post on steem and on firebase.

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About this app and service

The service model is very simple. There are two stages.

Stage 1: Bring many new users

1. The app provides a very simple sign-in method. Quick account generation.
2. A new user gets voted by a voting pool.
3. A new user can buy a mobile coupon such as a coffee coupon with the earned steem.
4. This app is considered as an X2E service.

Stage 2: Users' Store

1. A user can sell a product or an item
2. Other users can buy the item

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We need much more apps on Steem

I summarized the services that I am developing.
https://steemit.com/hive-185836/@etainclub/we-need-much-more-apps-on-steem
We need much more apps to make Steem great again!

Please resteem this and support my witness.

I am losing my witness ranking.
Please consider voting for my witness

@hungry-griffin
@haejin
@nodehub
@kopasi (증인 보팅 부탁드립니다!)

@steemcurator01, Thank you for Your Support

cc.
@pennsif

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