express-query-int/README.md

Convert query strings to numbers for express/connect applications.

express-query-int
=================

> Convert query strings to numbers for express/connect applications.

[![npm](https://img.shields.io/npm/v/express-query-int.svg)](https://www.npmjs.com/package/express-query-int)
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## Installation

    npm install --save express-query-int


## Getting Started
The module will recursively attempt to parse every property in `req.query`.

Load it right after the `bodyParser`:

```js
var queryParser = require('express-query-int');

// [...]

app.use(bodyParser.json());
app.use(queryParser());
```

#### Without
```js
// ?a=1&b[c]=2
console.log(req.query);
// => { a: '4', b: { c: '2' } }
```

#### With
```js
// ?a=1&b[c]=2
console.log(req.query);
// => { a: 4, b: { c: 2 } }
```

### Default Parser
By default the parser will use `Number` to convert numbers. You can use `parseInt`, `parseFloat`, or your own function.

```js
app.use(queryParser({
  parser: parseFloat
}));
```

### Custom Parser
Provide a function that takes two arguments:

- `value`: a string potentially representing a number
- `radix`: 10
- `name` : a name of query argument

```js
app.use(queryParser({
  parser: function(value, radix, name) {
    if (true) {
      return modifiedValue;
    }
    else {
      return NaN;
    }
  }
}));
```

## License
Copyright (c) 2015 Marius Craciunoiu. Licensed under the MIT license.