JS utilities for GraphQL

rip-hunter is a small utility to parse objects formatted for GraphQL requests as well as use fetch to send query and mutation requests, returning a promise. Some helpers include sending an authorization token as well as custom headers.

Installation

Using npm:

$ npm install @nlabs/rip-hunter

###App Usage Then with a module bundler like webpack that supports either CommonJS or ES2015 modules, use as you would anything else:

import {query} from '@nlabs/rip-hunter';

How to use

Example:

import {mutation, query, toGql} from '@nlabs/rip-hunter';

const AppActions = {
  getData: () => {
    // Variables
    const url = 'http://www.example.com/graphql';
    const gql = '{ app { ping } }';

    // Query data
    return query(url, gql)
      .then(results => {
        console.log(results);
        // Assuming the results will return the JSON object, {status: 'ok'}
        // Output: {status: 'ok'}
      })
      .catch(error => {
        // ApiError will be returned if any problems occur.
      });
  },

  updateData: () => {
    // Variables
    const url = 'http://www.example.com/graphql';
    const data = {hello: 'world'};
    const gql = `{ user { update(data: ${toGql(data)}) } }`;

    // Mutate data
    return mutation(url, gql)
      .then(results => {
        console.log(results);
        // Assuming the results will return the JSON object, {id: 'test', hello: 'world'}
        // Output: {id: 'test', hello: 'world'}
      })
      .catch(error => {
        // ApiError will be returned if any problems occur.
      });
  }
}

API

Formatting

toGql(data)

Parses an immutable object, JSON object, string, or number into a GraphQL formatted string. This string is used when sending variables in a request.

• [data] (* Any *): An immutable object, JSON object, string or number to format for use with a GQL request.

Returns

A string formatted for use with GQL.

Events

on(eventType, data)

Adds an event listener. The only event emitted is when an error occurs. The error event is rip_hunter_error.

• [eventType] (String): Event to subscribe for store updates.
• [listener] (Function): The callback to be invoked any time an action has been dispatched.

off(eventType, data)

Removes an event listener.

• [eventType] (String): Event to unsubscribe.
• [listener] (Function): The callback associated with the subscribed event.

AJAX

ajax(url, method, params, options)

AJAX request.

• [url] (String): URL to send the request. Must be an absolute url.
• [method] (String): The HTTP method for the request.
• [params] (Object): Data to be sent with the request. Params will be converted to a query string for GET methods.
• [options] (Object): Rip Hunter options.
  • [headers] (Object): Overwrite the default headers.
  • [token] (String): Add an Authorization header with the value Bearer [token].

Returns

A promise with either the response data or ApiError.

get(url, params, options)

Server request using HTTP GET.

• [url] (String): URL to send the request. Must be an absolute url.
• [params] (Object): Data to be sent with the request.
• [options] (Object): Rip Hunter options.
  • [headers] (Object): Overwrite the default headers.
  • [token] (String): Add an Authorization header with the value Bearer [token].

Returns

A promise with either the response data or ApiError.

post(url, params, options)

Server request using HTTP POST.

• [url] (String): URL to send the request. Must be an absolute url.
• [params] (Object): Data to be sent with the request.
• [options] (Object): Rip Hunter options.
  • [headers] (Object): Overwrite the default headers.
  • [token] (String): Add an Authorization header with the value Bearer [token].

Returns

A promise with either the response data or ApiError.

put(url, params, options)

Server request using HTTP PUT.

• [url] (String): URL to send the request. Must be an absolute url.
• [params] (Object): Data to be sent with the request.
• [options] (Object): Rip Hunter options.
  • [headers] (Object): Overwrite the default headers.
  • [token] (String): Add an Authorization header with the value Bearer [token].

Returns

A promise with either the response data or ApiError.

del(url, params, options)

Server request using HTTP DEL.

• [url] (String): GraphQL server endpoint. Must be an absolute url.
• [params] (Object): Data to be sent with the request.
• [options] (Object): Rip Hunter options.
  • [headers] (Object): Overwrite the default headers.
  • [token] (String): Add an Authorization header with the value Bearer [token].

Returns

A promise with either the response data or ApiError.

GraphQL

query(url, body, options)

Queries a GraphQL server.

• [url] (String): GraphQL server endpoint. Must be an absolute url.
• [body] (String): GraphQL query.
• [options] (Object): Rip Hunter options.
  • [headers] (Object): Overwrite the default headers.
  • [stripWhitespace] (Boolean): Removes whitespace in body. Default: false.
  • [token] (String): Add an Authorization header with the value Bearer [token].
  • [variables] (Object): Variables used in query. Default: {}.

Returns

A promise with either the response data or ApiError.

mutation(url, body, token, headers)

Modifies data on a GraphQL server.

• [url] (String): GraphQL server endpoint. Must be an absolute url.
• [body] (String): GraphQL query.
• [options] (Object): Rip Hunter options.
  • [headers] (Object): Overwrite the default headers.
  • [stripWhitespace] (Boolean): Removes whitespace in body. Default: false.
  • [token] (String): Add an Authorization header with the value Bearer [token].
  • [variables] (Object): Variables used in query. Default: {}.

Returns

A promise with either the response data or ApiError.