How do i append an array in GraphQL through AppSync?

For an ‘id’ in my DynamoDB table (e.g. e5eb02ae-04d5-4331-91e6-11efaaf12ea5), i have a column called Weather

['sun', 'rain', 'snow', etc...]

I need to update Weather when, say [‘hail’] arrives. Right now, my update() below, replaces the the entire array. All i want to do is append ‘hail’ to the end of that list.

    const updateinfo = {
       id: "e5eb02ae-04d5-4331-91e6-11efaaf12ea5",   
       Weather: "hail"
    }
    try {
        await API.graphql(graphqlOperation (UpdateInfo, { input: updateinfo }))  //mutation
        console.log('success')
       }
       catch (err) {
         console.log(err)
       }

How do i do this, ensuring that my list is just appended to with the info, WITHOUT having to get() and pull down [‘sun’, ‘rain’, ‘snow’, etc…], then adding ‘hail’ and creating a new array? Thats then a GetInfo() and an UpdateInfo() which is double the effort/call/expense.

[idanlo]

@ajhool an array is definitely a standard thing that many many people use, this should absolutely be a feature that should work out of the box

[ajhool]

Appending to an array field is definitely not standard logic and should be outside the scope of a framework like Amplify’s purview. The post by @nathan-quinn is incredibly helpful. Just use that