How to select single item from a GraphQL query and pass it in to Apollo?

Asked
Active3 hr before
Viewed126 times

6 Answers

graphqlsingleselect
90%

I'm trying to figure out how to select a single item from a query, but I'm getting stuck. I have a list of items (pokemons), but when I click on one I will like to select this particular item (pokemon), rerun a query with the selected item so I can get all its details. , Short story about someone who is exiled on a prison planet where some people bury themselves in the ground or grow extra limbs , If someone helps stop a murder, what would be the possible consequences?

Pretag
 Pretag team - issue, fix, solve, resolve
88%

Looks like you've followed a broken link or entered a URL that doesn't exist on this site.,If this is your site, and you weren't expecting a 404 for this path, please visit Netlify's "page not found" support guide for troubleshooting tips.

Pretag
 Pretag team - issue, fix, solve, resolve
72%

If the only thing we could do was traverse objects and their fields, GraphQL would already be a very useful language for data fetching. But when you add the ability to pass arguments to fields, things get much more interesting.,Note that in this example, the friends field returns an array of items. GraphQL queries look the same for both single items or lists of items, however we know which one to expect based on what is indicated in the schema.,Try editing the variables above to instead pass true for withFriends, and see how the result changes.

Pretag
 Pretag team - issue, fix, solve, resolve
65%

The first piece of functionality we’ll implement in the app is loading and displaying a list of Link elements. We’ll walk up our way in the React component hierarchy and start with the component that will render a single link.,This is a simple React component that expects a link in its props and renders the link’s description and url. Easy as pie! 🍰,Next, let’s implement the component that renders a list of links.

{
   feed {
      id
      links {
         id
         createdAt
         description
         url
      }
   }
}
load more v
75%

In this article, we will look at a selection of these features.,In GraphQL, on the other hand, you’d simply send a single query to the GraphQL server that includes the required data. The server would then respond with a JSON object of the exact data you’ve requested — hence, no overfetching. Sebastian Eschweiler explains the differences between RESTful APIs and GraphQL.,But GraphQL is just a query language. In order to use it easily, we need a platform that does the heavy lifting for us. One such platform is Apollo.

import React, {useState} from 'react'
import gql from 'graphql-tag'
import { useQuery, useMutation } from '@apollo/react-hooks'
import PetsList from '../components/PetsList'
import NewPetModal from '../components/NewPetModal'
import Loader from '../components/Loader'

const GET_PETS = gql`
  query getPets {
    pets {
      id
      name
      type
      img
    }
  }
`;

export default function Pets () {
  const [modal, setModal] = useState(false)
  const { loading, error, data } = useQuery(GET_PETS);

  if (loading) return <Loader />;

  if (error) return <p>An error occured!</p>;


  const onSubmit = input => {
    setModal(false)
  }
  

  if (modal) {
    return <NewPetModal onSubmit={onSubmit} onCancel={() => setModal(false)} />
  }
  return (
    <div className="page pets-page">
      <section>
        <div className="row betwee-xs middle-xs">
          <div className="col-xs-10">
            <h1>Pets</h1>
          </div>
          <div className="col-xs-2">
            <button onClick={() => setModal(true)}>new pet</button>
          </div>
        </div>
      </section>
      <section>
        <PetsList pets={data.pets}/>
      </section>
    </div>
  )
}
load more v
40%

We can execute the mutation with using inline arguments or if you prefer with using variables,This creates a special type. When using only a list modifier we are allowed to return a null value from the resolver. We can even combine the items in the array to contain null values as in this array:,We should retrieve this data and obtain users as a list.

git clone git @github.com: atherosai / graphql - gateway - apollo - express.git
load more v