graph_ql_006_mutations_update.ts

//
// graphql/types/card-patch.ts
//

export const CardPatch = `
    input CardPatch {
        title       : String
        description : String
        done        : Boolean
    }
`;


//
// graphql/types.ts
//

import { Card }         from 'graphql/types/card';
import { CardPatch }    from 'graphql/types/card-patch';


export const types = [
    Card,
    CardPatch, // <-- add new type to types list
];


//
// graphql/mutation.ts
//

export const Mutation = `
    type Mutation {

        toggleCard (
            id: String!
        ): Card
        
        # add mutation definition here
        updateCard (
            id: String!
            patch: CardPatch!
        ): Card
    }
`;

//
// graphql/mutations/update-card.ts
//
import { getRepository } from 'typeorm';
import { Card }          from 'entities/card';


export const updateCardMutation = {
    async updateCard(_, { id, patch }) {
        const repository = getRepository(Card);
        const card = await repository.findOne({ id });
        const result = await repository.updateById(id, patch);
        return {
            ...card,
            ...patch,
        };
    }
};

//
// graphql/resolvers.ts
//
export const resolvers = {
    Query: {
        ...cardsResolver,
        ...cardResolver,
    },

    Mutation: {
        ...toggleCardMutation,
        ...updateCardMutation, // <-- add new mutation to resolvers
    },
};