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graphql-query-builder

v1.0.7

Published

a simple but powerful graphQL query builder

Downloads

2,041

Readme

graphql-query-builder

a simple but powerful graphQL query builder

info:

npm version License pull requests welcome

tests:

build Coverage Status

quality:

Code Climate bitHound Overall Score Issue Count

If this was helpful, ★ it on github

tested on NodeJS and Webpack

Demo / Sandbox :thumbsup:

Install

npm install graphql-query-builder

Api

const Query = require('graphql-query-builder');

constructor

query/mutator you wish to use, and an alias or filter arguments.

| Argument (one to two) | Description |--- |--- | String | the name of the query function | * String / Object | (optional) This can be an alias or filter values

let profilePicture = new Query("profilePicture",{size : 50});

setAlias

set an alias for this result.

| Argument | Description |--- |--- | String | The alias for this result

profilePicture.setAlias("MyPic");

filter

the parameters to run the query against.

| Argument | Description |--- |--- | Object | An object mapping attribute to values

profilePicture.filter({ height : 200, width : 200});

find

outlines the properties you wish to be returned from the query.

| Argument (one to many) | Description |--- |--- | String or Object | representing each attribute you want Returned | ... | same as above

    profilePicture.find( { link : "uri"}, "width", "height");

toString

return to the formatted query string

  // A (ES6)
  `${profilePicture}`;
  // B
  profilePicture+'';
  // C
  profilePicture.toString();

run samples

node example/simple.js

Example

var Query = require('graphql-query-builder');

// example of nesting Querys
let profilePicture = new Query("profilePicture",{size : 50});
    profilePicture.find( "uri", "width", "height");
    
let user = new Query("user",{id : 123});
    user.find(["id", {"nickname":"name"}, "isViewerFriend",  {"image":profilePicture}])
    
    console.log(user)
    /*
     user( id:123 ) {
    id,
    nickname : name,
    isViewerFriend,
    
    image : profilePicture( size:50 ) {
        uri,
        width,
        height
    }
  }
    */
    
// And another example

let MessageRequest = { type:"chat", message:"yoyo",
                   user:{
                            name:"bob",
                            screen:{
                                    height:1080,
                                    width:1920
                                    }
                    },
                    friends:[
                             {id:1,name:"ann"},
                             {id:2,name:"tom"}
                             ]
                    };
                    
let MessageQuery = new Query("Message","myPost");
    MessageQuery.filter(MessageRequest);
    MessageQuery.find({ messageId : "id"}, {postedTime : "createTime" });
    
    console.log(MessageQuery);
    
    /*
    myPost:Message( type:"chat",
                    message:"yoyo",
                    user:{name:"bob",screen:{height:1080,width:1920}},
                    friends:[{id:1,name:"ann"},{id:2,name:"tom"}])
        {
            messageId : id,
            postedTime : createTime
        }
    */

    // Simple nesting
    
    let user = new Query("user");
        user.find([{"profilePicture":["uri", "width", "height"]}])
    
    /* 
    user {
      profilePicture {
        uri,
        width,
        height
       }
     }
    */ 
    
    // Simple nesting with rename
    
    let user = new Query("user");
        user.find([{"image":{"profilePicture":["uri", "width", "height"]}}])
    
    /* 
    user {
      image : profilePicture {
        uri,
        width,
        height
       }
     }
    */