Jeff,
That’s a good idea re implementation. You can use the wix-data update function to make that happen.
import wixData from 'wix-data';
export function likeClicked($w,event){
//Do like animation here. You know, the one with the heart being filled in.
let newPost= {
"_id": "00001", // Note the only required value is the ID
"post_title": "Google Duplex will not take over!",
"author": "John Doe",
"likes": getLikeCount()+1 };
//In reality you would implement getLikeCount() so it doesn't have to query DB
//each time it wants to get likes.
//The update function is called with the following parameters:
//update(name_of_collection: String, new_item_to_update_with: Object, [options:WixDataOptions]).
//It returns a Promise with the newly added item.
wixData.update("myCollection", newPost)
.then( (results) => { let item = results;
//Do whatever you need to do after the like has been sent to the DB.
})
.catch( (err) => {
//Catch any errors silently without affecting user experience.
let errorMsg = err;
} );
}