How to perform batch update in graphql?

@deron 

In GraphQL, batch update operations can be performed by using mutations. Mutations allow you to update multiple objects at once by sending an array of input objects in the request body. Here is a step-by-step guide on how to perform a batch update in GraphQL:

1. Define a GraphQL mutation that accepts an input object as an argument. The input object should contain the fields that you want to update for each object in the batch.

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mutation BatchUpdate($input: [UpdateInput!]!) {
  batchUpdate(input: $input) {
    success
    message
  }
}

1. Create an input type in your GraphQL schema to represent the fields that can be updated for each object in the batch.

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input UpdateInput {
  id: ID!
  field1: String
  field2: Int
  field3: Boolean
  # Add more fields as needed
}

1. Implement a resolver function for the batchUpdate mutation in your GraphQL server. This resolver function should accept the input array and loop through each object to perform the update operation.

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const resolvers = {
  Mutation: {
    batchUpdate: (_, { input }) => {
      input.forEach(async (obj) => {
        // Perform update operation for the object using the input fields
        // Update logic goes here
      });
      return { success: true, message: 'Batch update successful' };
    },
  },
};

1. Send a GraphQL request to the server with the batch update mutation and an array of input objects specifying the fields to update for each object in the batch.

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mutation {
  batchUpdate(input: [
    { id: "1", field1: "New Value 1" },
    { id: "2", field2: 100 },
    { id: "3", field3: true }
    # Add more objects as needed
  ]) {
    success
    message
  }
}

1. The server will process the batch update request and update the specified fields for each object in the batch. The response will indicate whether the batch update was successful or if there were any errors.

By following these steps, you can perform batch update operations in GraphQL using mutations and input objects.