qetch

qetch

Simple GraphQL client to execute queries and mutations

Installation

via yarn

yarn add qetch

via npm

npm install qetch

Example

without variables

import qetch, { gql } from 'qetch'
const graphQlClient = new qetch('http://localhost:8080/graphql/')

const SEARCH_QUERY = gql`
  query {
    search(q: "Apple") {
      results
    }
  }
`

graphQlClient.execute(SEARCH_QUERY).then((e) => {
  console.log(e)
})

with variables

import qetch, { gql } from 'qetch'
const graphQlClient = new qetch('http://localhost:8080/graphql/')

const SEARCH_QUERY = gql`
  query Search($searchQuery: String!) {
    search(q: $searchQuery) {
      results
    }
  }
`

graphQlClient.execute(SEARCH_QUERY, {
  searchQuery: "Apple"
}).then((e) => {
  console.log(e)
})

PRO Tip :sunglasses::+1:

You can declare custom types on variable and response object using TypeScript like this:

import qetch, { gql } from 'qetch'
const graphQlClient = new qetch('http://localhost:8080/graphql/')

const SEARCH_QUERY = gql`
  query Search($searchQuery: String!) {
    search(q: $searchQuery) {
      results
    }
  }
`

interface SearchResponse {
  search: {
    results: string[]
  }
}

interface SearchVariables {
  searchQuery: string
}

graphQlClient.execute<SearchResponse, SearchVariables>(SEARCH_QUERY, {
  searchQuery: "Apple"
}).then((e) => {
  console.log(e)
})

API Reference

qetch - The module returns a constructor from which you can instantiate a client

import qetch from 'qetch'
const graphQlClient = new qetch('http://localhost:8080/graphql/')

Params

Parameter	Required	Type	Description
endpoint	true	string	URL to your GraphQL Endpoint

Methods

• execute(queryOrMutation, variables) - This method should be used to execute a query or mutation.

graphQlClient.execute(SEARCH_QUERY, {
  searchQuery: "Apple"
})

• setOptions(options) - This method should be used to set fetch options.

// Send Auth Token in header
graphQlClient.setOptions({
  headers: {
    'Authorization': `Bearer ${JWT}`
  }
})

// This will override qetch's default fetch method (POST)
graphQlClient.setOptions({
  method: 'GET' 
})

gql - The module also exposes a gql function which you can use to write your GraphQL queries and mutations, here's a small example:

const SEARCH_QUERY = gql`
  query Search($searchQuery: String!) {
    search(q: $searchQuery) {
      results
    }
  }
`

How is this useful? This enables your editor to highlight the tags appropriately, while the function doesn't actually do anything magical, it will make your code more readable. Try vscode-graphql if you're using VSCode to enable syntax highlighting on gql tag function, you will have to search for such extensions if you're using some other editor!

Contributing

Please open an issue if you have any problems or bug reports. Want to add new features? Please submit a PR! If you think I'm doing something wrong, please let me know so I can improve myself :smiley::+1:

Planned Features

• React support via hooks
• Support GraphQL subscriptions
• Caching

License

MIT © 2020 Akash Rajendra