29823fe495
* Expanded the solution for the 'Get Route Parameter Input from the Client' challenge * Expanded the guide for the 'Use body-parser to Parse POST Requests' challenge * Rewritten guide for the 'Serve JSON on a Specific Route' challenge and fixed source link * Expanded the guide for the 'Serve Static Assets' challenge * Expanded solution to the 'Get Query Parameter Input from the Client' challenge and fixed links to source file * Added solution to the 'Chain Middleware to Create a Time Server' challenge and fixed link to source file * Rewrite the 'Start a Working Express Server' challenge * Expanded the guide for 'Expand Your Project with External Packages from npm' * Added reference to semantic versioning in 'Add a Version to Your package.json' * fix/remove-links+fix-solutions * fix/remove-more-links
43 lines
1.5 KiB
Markdown
43 lines
1.5 KiB
Markdown
---
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title: Use body-parser to Parse POST Requests
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---
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## Use body-parser to Parse POST Requests
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<!-- The article goes here, in GitHub-flavored Markdown. Feel free to add YouTube videos, images, and CodePen/JSBin embeds -->
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The body-parser should already be added to your project if you used the provided boilerplate, but if not it should be there as:
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```json
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"dependencies": {
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"body-parser": "^1.19.0",
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...
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"express": "^4.17.1"
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}
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```
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You can run `npm install body-parser` to add it as a dependency to your project instead of manually adding it to the `package.json` file.
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This guide assumes you have imported the `body-parser` module into your file as `bodyParser`.
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In order to import the same, you just need to add the following line at the top of your file:
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```javascript
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var bodyParser = require('body-parser');
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```
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All you need to do for this challenge is pass the middleware to `app.use()`. Make sure it comes before the paths it needs to be used on. Remember that body-parser returns with `bodyParser.urlencoded({extended: false})`. Use the following as a template:
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```javascript
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app.use(bodyParser.urlencoded({ extended: false }));
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```
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In order to parse JSON data sent in the POST request, use `bodyParser.json()` as the middleware as shown below:
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```javascript
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app.use(bodyParser.json());
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```
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The data received in the request is available in the `req.body` object.
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Do not forget that all these statements need to go above any routes that might have been defined.
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