# graphqljs

**Repository Path**: youngboyvip/graphqljs

## Basic Information

- **Project Name**: graphqljs
- **Description**: mybatis 一对多代码生成
- **Primary Language**: Unknown
- **License**: Not specified
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 4
- **Forks**: 0
- **Created**: 2020-11-19
- **Last Updated**: 2022-07-15

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

# GraphQL JS

[中文文档](README_zh.md)

test script
```
node graphql.js class.gql
```

A simple [GraphQL](https://gist.github.com/wincent/598fa75e22bdfa44cf470) parser written in JavaScript.


## 在线demo
[http://youngboyvip.gitee.io/youngboy/mybatis.html](http://youngboyvip.gitee.io/youngboy/mybatis.html)

## Usage

### Parser API

The parser is generated by PEGjs, I'd recommend reading their [docs](http://pegjs.org/documentation#using-the-parser) on parser usage. But it's pretty simple:

```js
var parser = require('graphql');

var query = `
        select 
          findByRootIdOrClassId(type:"vip.youngboy.model.TplClass") {
            b.id Long,
            b.class_name:className String,
            b.p_name:pName String,
            c.rootId Long,
            components.config(type:"vip.youngboy.model.TplModuleInfo",fetch:"list"){
              a.id Long,
              a.component:component String,
              a.name String,
              subList.config(type:"vip.youngboy.model.TplModuleItem",fetch:"list"){
                d.id Long,
                d.name String
              }
            }
          } 
          from
        tpl_class_info b
        join tpl_class_rel c ON b.id = c.classId
        join tpl_module_info a ON a.id = c.modId join tpl_module_item d.mid=c.id
`;

var ast = parser.parse(query);
// ast is a plain JS object
```

#### Example output

Going off the above query, the return AST would look like this:

```json
  {
  "call": "findByRootIdOrClassId",
  "parameters": [
    {
      "name": "type",
      "value": "com.fawkes.yhsw.common.model.TplClass"
    }
  ],
  "root": true,
  "properties": [
    {
      "name": "id",
      "alias": "b",
      "type": "Long",
      "jname": null
    },
    {
      "name": "class_name",
      "alias": "b",
      "type": "String",
      "jname": "className"
    },
    {
      "name": "p_name",
      "alias": "b",
      "type": "String",
      "jname": "pName"
    },
    {
      "name": "rootId",
      "alias": "c",
      "type": "Long",
      "jname": null
    },
    {
      "name": "components",
      "calls": [
        {
          "call": "config",
          "parameters": [
            {
              "name": "type",
              "value": "com.fawkes.yhsw.common.model.TemplateModuleInfo"
            },
            {
              "name": "fetch",
              "value": "list"
            }
          ]
        }
      ],
      "properties": {
        "properties": [
          {
            "name": "id",
            "alias": "a",
            "type": "Long",
            "jname": null
          },
          {
            "name": "component",
            "alias": "a",
            "type": "String",
            "jname": "component"
          },
          {
            "name": "name",
            "alias": "a",
            "type": "String",
            "jname": null
          },
          {
            "name": "page_type",
            "alias": "a",
            "type": "String",
            "jname": "pageType"
          },
          {
            "name": "thumbnail",
            "alias": "a",
            "type": "String",
            "jname": null
          },
          {
            "name": "range_index",
            "alias": "a",
            "type": "Integer",
            "jname": "rangeIndex"
          }
        ]
      }
    }
  ],
  "querybody": "tpl_class_info b\r\n    JOIN tpl_class_rel c ON b.id = c.classId\r\n    JOIN template_module_info a ON a.id = c.modId\r\n"
}
```

### Demo

After cloning, install deps with `npm install`.

You can re-build the parser by running `npm run build`

Or see a demo of its output by running `npm run demo`, this runs the parser over `./examples/friends.gql` and dumps the parsed object to the console.