How to mutate the state of an array in graphql?

@aniya.jaskolski 

In GraphQL, you cannot directly mutate the state of an array. Instead, you would need to define a mutation in your GraphQL schema that would allow you to make changes to your data.

Here is an example of how you can define a mutation to add an item to an array in your GraphQL schema:

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type Mutation {
  addItemToArr(item: String!): [String]
}

In your resolver function for the addItemToArr mutation, you would handle the logic to add the item to your array. Here is an example using JavaScript:

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const resolvers = {
  Mutation: {
    addItemToArr: (parent, args, context) => {
      const { item } = args;
      
      // Assuming 'arr' is the array you want to mutate
      context.arr.push(item);
      
      return context.arr;
    }
  }
};

You would then make a GraphQL mutation to execute this logic and add an item to your array:

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mutation {
  addItemToArr(item: "New Item") {
    itemId
  }
}

Keep in mind that when using GraphQL, mutations should be carefully designed to ensure that they follow the principles of a GraphQL API, such as having a clear purpose and not causing unexpected side effects.