By manish Fri, Jan 18, 2019
Subscription is another type of in GraphQL.
This is use real time events using websockets, you can send notification to client for events which happen on the server using web sockets.
It you are not aware what are websockets, you can find plenty of resources online.
Let’s see how to implement subscription in our code base. As an example, let’s add a subscription to notify user when a new todo is added
By manish Thu, Jan 17, 2019
Till now we have been using a simple graphql-express middleware as a gql server.
https://github.com/apollographql/apollo-server
Apollo-Server provides a full feature gql server which is production ready and should be used for most applications.
Let’s move our code base to apollo-server
First install via
$ npm install --save apollo-server graphql Also we don’t need graphql-tools anymore as it is inbuilt in apollo-server
So final code looks like this
const { ApolloServer } = require('apollo-server'); import { typeDefs, resolvers } from "
By manish Wed, Jan 16, 2019
Till now we have only seen how to fetch data and gone quite deep into it.
Now let’s see the how we can update data i.e POST, PUT, DELETE requests
We need to use mutations for it.
Mutation also follow exact similar pattern as Query. Let’s define a mutation to add a new profile data
//mutations/profile.js export default ` extend type Mutation { addProfile(name: String) : Profile } ` //resolvers/profile.js import data from "
By manish Tue, Jan 15, 2019
In previous blogs post, we got stuck at a problem and found a new tool to solve it i.e graphql-tools.
Let’s see from start what is graphql-tools and how we use it in our app.
First thing apollo graphql-tools recommends to use GQL type/query syntax directly and also to have schema and resolvers as separate.
So, to try this out first lets convert our user schema to GQL syntax and comment the todo schema from our app, only stick to user schema.
By manish Mon, Jan 14, 2019
This in after previous blog post, lets see more usage of GQL queries
Step1
In the previous blog post, we had structured our queries to return a hard coded response. In this post, we will assume we have two objects for “user” and “address” almost similar to a database structure like mysql and we have multiple user data as well.
P.S I am taking structure similar to a traditional db just so it’s easier to understand, but in real practice graphql works best with nosql db’s
By manish Sun, Jan 13, 2019
In this blog post we will start using graphql using expressjs.
I have been working with REST API’s for a very long time so, these blog posts would be learning graphql but in context of rest api as well.
To start of, do the following https://graphql.github.io/graphql-js/
https://graphql.github.io/graphql-js/running-an-express-graphql-server/
After the first step is done, you should have a basic gql application running
Next after this is done, do this step https://graphql.github.io/graphql-js/basic-types/
