gql-query-builder-ts
v3.9.0
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Simple GraphQL Query Builder
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GraphQL Query Builder
A simple helper function to generate GraphQL queries using plain JavaScript Objects (JSON).
Install
npm install gql-query-builder --save
or yarn add gql-query-builder
Usage
import * as gql from 'gql-query-builder'
const query = gql.query(options: object)
const mutation = gql.mutation(options: object)
const subscription = gql.subscription(options: object)
You can also import query
or mutation
or subscription
individually:
import { query, mutation, subscription } from 'gql-query-builder'
query(options: object)
mutation(options: object)
subscription(options: object)
Options
options
is { operation, fields, variables }
or an array of options
Adapter
An optional second argument adapter
is a typescript/javascript class that implements src/adapters/IQueryAdapter
or src/adapters/IMutationAdapter
.
If adapter is undefined then src/adapters/DefaultQueryAdapter
or src/adapters/DefaultMutationAdapter
is used.
import * as gql from 'gql-query-builder'
const query = gql.query(options: object, adapter?: MyCustomQueryAdapter,config?: object)
const mutation = gql.mutation(options: object, adapter?: MyCustomQueryAdapter)
const subscription = gql.subscription(options: object, adapter?: MyCustomSubscriptionAdapter)
Config
Examples
- Query
- Query (with variables)
- Query (with nested fields selection)
- Query (with required variables)
- Query (with custom argument name)
- Query (with operation name)
- Query (with empty fields)
- Query (with alias)
- Query (with adapter defined)
- Mutation
- Mutation (with required variables)
- Mutation (with custom types)
- Mutation (with adapter defined)
- Mutation (with operation name)
- Subscription
- Subscription (with adapter defined)
- Example with Axios
Query:
import * as gql from 'gql-query-builder'
const query = gql.query({
operation: 'thoughts',
fields: ['id', 'name', 'thought']
})
console.log(query)
// Output
query {
thoughts {
id,
name,
thought
}
}
Query (with variables):
import * as gql from 'gql-query-builder'
const query = gql.query({
operation: 'thought',
variables: { id: 1 },
fields: ['id', 'name', 'thought']
})
console.log(query)
// Output
query ($id: Int) {
thought (id: $id) {
id, name, thought
}
}
// Variables
{ "id": 1 }
Query (with nested fields selection):
import * as gql from 'gql-query-builder'
const query = gql({
operation: 'orders',
fields: [
'id',
'amount',
{
user: [
'id',
'name',
'email',
{
address: [
'city',
'country'
]
}
]
}
]
})
console.log(query)
// Output
query {
orders {
id,
amount,
user {
id,
name,
email,
address {
city,
country
}
}
}
}
Query (with required variables):
import * as gql from 'gql-query-builder'
const query = gql.query({
operation: 'userLogin',
variables: {
email: { value: '[email protected]', required: true },
password: { value: '123456', required: true }
},
fields: ['userId', 'token']
})
console.log(query)
// Output
query ($email: String!, $password: String!) {
userLogin (email: $email, password: $password) {
userId, token
}
}
// Variables
{
email: "[email protected]",
password: "123456"
}
Query (with custom argument name):
import * as gql from 'gql-query-builder'
const query = gql.query([{
operation: "someoperation",
fields: [{
operation: "nestedoperation",
fields: ["field1"],
variables: {
id2: {
name: "id",
type: "ID",
value: 123,
},
},
}, ],
variables: {
id1: {
name: "id",
type: "ID",
value: 456,
},
},
}, ]);
console.log(query)
// Output
query($id2: ID, $id1: ID) {
someoperation(id: $id1) {
nestedoperation(id: $id2) {
field1
}
}
}
// Variables
{
"id1": 1,
"id2": 1
}
Query (with operation name):
import * as gql from 'gql-query-builder'
const query = gql.query({
operation: 'userLogin',
fields: ['userId', 'token']
}, null, {
operationName: 'someoperation'
})
console.log(query)
// Output
query someoperation {
userLogin {
userId
token
}
}
Query (with empty fields):
import * as gql from 'gql-query-builder'
const query = gql.query([{
operation: "getFilteredUsersCount",
},
{
operation: "getAllUsersCount",
fields: []
},
operation: "getFilteredUsers",
fields: [{
count: [],
}, ],
]);
console.log(query)
// Output
query {
getFilteredUsersCount
getAllUsersCount
getFilteredUsers {
count
}
}
Query (with alias):
import * as gql from 'gql-query-builder'
const query = gql.query({
operation: {
name: 'thoughts',
alias: 'myThoughts',
},
fields: ['id', 'name', 'thought']
})
console.log(query)
// Output
query {
myThoughts: thoughts {
id,
name,
thought
}
}
Query (with inline fragment):
import * as gql from 'gql-query-builder'
const query = gql.query({
operation: "thought",
fields: [
"id",
"name",
"thought",
{
operation: "FragmentType",
fields: ["emotion"],
fragment: true,
},
],
});
console.log(query)
// Output
query {
thought {
id,
name,
thought,
... on FragmentType {
emotion
}
}
}
Query (with adapter defined):
For example, to inject SomethingIDidInMyAdapter
in the operationWrapperTemplate
method.
import * as gql from 'gql-query-builder'
import MyQueryAdapter from 'where/adapters/live/MyQueryAdapter'
const query = gql.query({
operation: 'thoughts',
fields: ['id', 'name', 'thought']
}, MyQueryAdapter)
console.log(query)
// Output
query SomethingIDidInMyAdapter {
thoughts {
id,
name,
thought
}
}
Take a peek at DefaultQueryAdapter to get an understanding of how to make a new adapter.
Mutation:
import * as gql from 'gql-query-builder'
const query = gql.mutation({
operation: 'thoughtCreate',
variables: {
name: 'Tyrion Lannister',
thought: 'I drink and I know things.'
},
fields: ['id']
})
console.log(query)
// Output
mutation ($name: String, $thought: String) {
thoughtCreate (name: $name, thought: $thought) {
id
}
}
// Variables
{
"name": "Tyrion Lannister",
"thought": "I drink and I know things."
}
Mutation (with required variables):
import * as gql from 'gql-query-builder'
const query = gql.mutation({
operation: 'userSignup',
variables: {
name: { value: 'Jon Doe' },
email: { value: '[email protected]', required: true },
password: { value: '123456', required: true }
},
fields: ['userId']
})
console.log(query)
// Output
mutation ($name: String, $email: String!, $password: String!) {
userSignup (name: $name, email: $email, password: $password) {
userId
}
}
// Variables
{
name: "Jon Doe",
email: "[email protected]",
password: "123456"
}
Mutation (with custom types):
import * as gql from 'gql-query-builder'
const query = gql.mutation({
operation: "userPhoneNumber",
variables: {
phone: {
value: { prefix: "+91", number: "9876543210" },
type: "PhoneNumber",
required: true
}
},
fields: ["id"]
})
console.log(query)
// Output
mutation ($phone: PhoneNumber!) {
userPhoneNumber (phone: $phone) {
id
}
}
// Variables
{
phone: {
prefix: "+91", number: "9876543210"
}
}
Mutation (with adapter defined):
For example, to inject SomethingIDidInMyAdapter
in the operationWrapperTemplate
method.
import * as gql from 'gql-query-builder'
import MyMutationAdapter from 'where/adapters/live/MyQueryAdapter'
const query = gql.mutation({
operation: 'thoughts',
fields: ['id', 'name', 'thought']
}, MyMutationAdapter)
console.log(query)
// Output
mutation SomethingIDidInMyAdapter {
thoughts {
id,
name,
thought
}
}
Take a peek at DefaultMutationAdapter to get an understanding of how to make a new adapter.
Mutation (with operation name):
import * as gql from 'gql-query-builder'
const query = gql.mutation({
operation: 'thoughts',
fields: ['id', 'name', 'thought']
}, undefined, {
operationName: 'someoperation'
})
console.log(query)
// Output
mutation someoperation {
thoughts {
id
name
thought
}
}
Subscription:
import axios from "axios";
import { subscription } from "gql-query-builder";
async function saveThought() {
try {
const response = await axios.post(
"http://api.example.com/graphql",
subscription({
operation: "thoughtCreate",
variables: {
name: "Tyrion Lannister",
thought: "I drink and I know things.",
},
fields: ["id"],
})
);
console.log(response);
} catch (error) {
console.log(error);
}
}
Subscription (with adapter defined):
For example, to inject SomethingIDidInMyAdapter
in the operationWrapperTemplate
method.
import * as gql from 'gql-query-builder'
import MySubscriptionAdapter from 'where/adapters/live/MyQueryAdapter'
const query = gql.subscription({
operation: 'thoughts',
fields: ['id', 'name', 'thought']
}, MySubscriptionAdapter)
console.log(query)
// Output
subscription SomethingIDidInMyAdapter {
thoughts {
id,
name,
thought
}
}
Take a peek at DefaultSubscriptionAdapter to get an understanding of how to make a new adapter.
Example with Axios
Query:
import axios from "axios";
import { query } from "gql-query-builder";
async function getThoughts() {
try {
const response = await axios.post(
"http://api.example.com/graphql",
query({
operation: "thoughts",
fields: ["id", "name", "thought"],
})
);
console.log(response);
} catch (error) {
console.log(error);
}
}
Mutation:
import axios from "axios";
import { mutation } from "gql-query-builder";
async function saveThought() {
try {
const response = await axios.post(
"http://api.example.com/graphql",
mutation({
operation: "thoughtCreate",
variables: {
name: "Tyrion Lannister",
thought: "I drink and I know things.",
},
fields: ["id"],
})
);
console.log(response);
} catch (error) {
console.log(error);
}
}
Showcase
Following projects are using gql-query-builder
- Crate - Get monthly subscription of trendy clothes and accessories - GitHub
- Fullstack GraphQL Application - GitHub
- Would really appreciate if you add your project to this list by sending a PR
Author
Contributors
If you are interested in actively maintaining / enhancing this project, get in touch.
- Juho Vepsäläinen - GitHub · Twitter
- Daniel Hreben - GitHub · Twitter
- Todd Baur - GitHub · Twitter
- Alireza Hariri - GitHub
- Cédric - GitHub
- Clayton Collie - GitHub
- Devon Reid - GitHub
- Harry Brundage - GitHub · Twitter
- Clément Berard - GitHub · Twitter
- Lee Rose - GitHub
- Christian Westgaard - GitHub
- [YOUR NAME HERE] - Feel free to contribute to the codebase by resolving any open issues, refactoring, adding new features, writing test cases or any other way to make the project better and helpful to the community. Feel free to fork and send pull requests.
Donate
If you liked this project, you can donate to support it ❤️
License
Copyright (c) 2018 Atul Yadav http://github.com/atulmy
The MIT License (http://www.opensource.org/licenses/mit-license.php)