# (TypeScript) Json-Object-Mapper
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This a simple package to mapping a json object.


## Getting Started
### Install
```bash
npm install typescript-json-object-mapper
```
```bash
yarn add typescript-json-object-mapper
```
### Configure
To work with decorators, you need first enable `emitDecoratorMetadata` y `experimentalDecorators` on you `tsconfig.json`.
Example:
```json
{
    "compilerOptions": {
        "emitDecoratorMetadata": true,
        "experimentalDecorators": true
    }
}
```
### Create you own Views
This example tries to show all possible cases in which you might need to use this utility.

```typescript
class UserView extends JsonView {
    @JsonProperty
    username: string;
    
    @JsonProperty({
        ignore: true
    })
    password: string;
    
    @JsonProperty({
        topic: 'custom'
    })
    birthday: string;
    @JsonProperty({
        topic: 'custom2'
    })
    phone: string;
}
```

### Define you data object
```typescript
const json = {
    username: "annon",
    password: "12345678",
    birthday: "1992-03-20",
    phone: "+0123456789"
};
```
### Serilize(without topic's)
```typescript
const serialized = JsonObjectMapper.serialize(json, UserView).toString();
```
results:
```json
{
    username: "annon",
    birthday: "1992-03-20",
    phone: "+0123456789"
}
```

### Serilize(with topic)
```typescript
const serialized = JsonObjectMapper.serialize(json, UserView, ['custom']).toString();
```
results:
```json
{
    username: "annon",
    birthday: "1992-03-20"
}
```

### Serilize(with topic)
```typescript
const serialized = JsonObjectMapper.serialize(json, UserView, ['custom', 'custom2']).toString();
```
results:
```json
{
    username: "annon",
    birthday: "1992-03-20",
    phone: "+0123456789"
}
```

## Features
* [x] No-Initiation(Using only reference to class)
* [x] Renaming properties
* [x] Change data types
    * [x] to Date
        * [x] from String using `Date.parse`
        * [x] from Integer using `Date`
    * [x] to Integer
        * [x] from String using `Number`
    * [x] to Float
        * [x] from String using `Number`
    * [x] to Boolean
    * [x] to String
    * [x] to Object
* [x] Sub-Views(Recursivity)
    * [x] Array sub-views
    * [x] Single sub-view
* [x] Date values(String, Number, Date)
* [x] Serialize from `Object Array`
* [x] Serialize from `Object`
* [x] Serialize from `String`
* [x] Property Topic's
* [x] Smart `Object`, `Constructor`, `Function`, `Date`, `ObjectId` to `String`
    * [x] Using `toString` method when it exists
        * [x] If `toString` return `[object object]`, JsonObjectMapper will try iterate object to create a plain object with defualts values.
## API:

### JsonObjectMapper.serialize
This function always return `Serialization` object.
And can using it with data as `Array` or `Object`.

##### Example
```typescript
// from Array
JsonObjectMapper.serialize([
    {
        email: "john.smith@example.com",
        password: "123456"
    },
    {
        email: "john.smith@example.com",
        password: "123456"
    },
    {
        email: "john.smith@example.com",
        password: "123456"
    }
], UserView);

// from Object
JsonObjectMapper.serialize({
   email: "john.smith@example.com",
   password: "123456"
}, UserView);
```

### Serialization
#### Serialization.toString(`spaces:number = 4`): `string`
This method return a string representation of object.

#### Serialization.toJson()
This method return a json object representation.