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# endpoint.js
> Turns GitHub REST API endpoints into generic request options
[![@latest](https://img.shields.io/npm/v/@octokit/endpoint.svg)](https://www.npmjs.com/package/@octokit/endpoint)
[![Build Status](https://travis-ci.org/octokit/endpoint.js.svg?branch=master)](https://travis-ci.org/octokit/endpoint.js)
[![Greenkeeper](https://badges.greenkeeper.io/octokit/endpoint.js.svg)](https://greenkeeper.io/)
`@octokit/endpoint` combines [GitHub REST API routes](https://developer.github.com/v3/) with your parameters and turns them into generic request options that can be used in any request library.
<!-- update table of contents by running `npx markdown-toc README.md -i` -->
<!-- toc -->
- [Usage](#usage)
- [API](#api)
- [endpoint()](#endpoint)
- [endpoint.defaults()](#endpointdefaults)
- [endpoint.DEFAULTS](#endpointdefaults)
- [endpoint.merge()](#endpointmerge)
- [endpoint.parse()](#endpointparse)
- [Special cases](#special-cases)
- [The `data` parameter – set request body directly](#the-data-parameter-%E2%80%93-set-request-body-directly)
- [Set parameters for both the URL/query and the request body](#set-parameters-for-both-the-urlquery-and-the-request-body)
- [LICENSE](#license)
<!-- tocstop -->
## Usage
<table>
<tbody valign=top align=left>
<tr><th>
Browsers
</th><td width=100%>
Load <code>@octokit/endpoint</code> directly from <a href="https://cdn.pika.dev">cdn.pika.dev</a>
```html
<script type="module">
import { endpoint } from "https://cdn.pika.dev/@octokit/endpoint";
</script>
```
</td></tr>
<tr><th>
Node
</th><td>
Install with <code>npm install @octokit/endpoint</code>
```js
const { endpoint } = require("@octokit/endpoint");
// or: import { endpoint } from "@octokit/endpoint";
```
</td></tr>
</tbody>
</table>
Example for [List organization repositories](https://developer.github.com/v3/repos/#list-organization-repositories)
```js
const requestOptions = endpoint("GET /orgs/:org/repos", {
headers: {
authorization: "token 0000000000000000000000000000000000000001"
},
org: "octokit",
type: "private"
});
```
The resulting `requestOptions` looks as follows
```json
{
"method": "GET",
"url": "https://api.github.com/orgs/octokit/repos?type=private",
"headers": {
"accept": "application/vnd.github.v3+json",
"authorization": "token 0000000000000000000000000000000000000001",
"user-agent": "octokit/endpoint.js v1.2.3"
}
}
```
You can pass `requestOptions` to commen request libraries
```js
const { url, ...options } = requestOptions;
// using with fetch (https://developer.mozilla.org/en-US/docs/Web/API/Fetch_API)
fetch(url, options);
// using with request (https://github.com/request/request)
request(requestOptions);
// using with got (https://github.com/sindresorhus/got)
got[options.method](url, options);
// using with axios
axios(requestOptions);
```
## API
### `endpoint(route, options)` or `endpoint(options)`
<table>
<thead align=left>
<tr>
<th>
name
</th>
<th>
type
</th>
<th width=100%>
description
</th>
</tr>
</thead>
<tbody align=left valign=top>
<tr>
<th>
<code>route</code>
</th>
<td>
String
</td>
<td>
If set, it has to be a string consisting of URL and the request method, e.g., <code>GET /orgs/:org</code>. If it’s set to a URL, only the method defaults to <code>GET</code>.
</td>
</tr>
<tr>
<th>
<code>options.method</code>
</th>
<td>
String
</td>
<td>
<strong>Required unless <code>route</code> is set.</strong> Any supported <a href="https://developer.github.com/v3/#http-verbs">http verb</a>. <em>Defaults to <code>GET</code></em>.
</td>
</tr>
<tr>
<th>
<code>options.url</code>
</th>
<td>
String
</td>
<td>
<strong>Required unless <code>route</code> is set.</strong> A path or full URL which may contain <code>:variable</code> or <code>{variable}</code> placeholders,
e.g., <code>/orgs/:org/repos</code>. The <code>url</code> is parsed using <a href="https://github.com/bramstein/url-template">url-template</a>.
</td>
</tr>
<tr>
<th>
<code>options.baseUrl</code>
</th>
<td>
String
</td>
<td>
<em>Defaults to <code>https://api.github.com</code></em>.
</td>
</tr>
<tr>
<th>
<code>options.headers</code>
</th>
<td>
Object
</td>
<td>
Custom headers. Passed headers are merged with defaults:<br>
<em><code>headers['user-agent']</code> defaults to <code>octokit-endpoint.js/1.2.3</code> (where <code>1.2.3</code> is the released version)</em>.<br>
<em><code>headers['accept']</code> defaults to <code>application/vnd.github.v3+json</code></em>.<br>
</td>
</tr>
<tr>
<th>
<code>options.mediaType.format</code>
</th>
<td>
String
</td>
<td>
Media type param, such as <code>raw</code>, <code>diff</code>, or <code>text+json</code>. See <a href="https://developer.github.com/v3/media/">Media Types</a>. Setting <code>options.mediaType.format</code> will amend the <code>headers.accept</code> value.
</td>
</tr>
<tr>
<th>
<code>options.mediaType.previews</code>
</th>
<td>
Array of Strings
</td>
<td>
Name of previews, such as <code>mercy</code>, <code>symmetra</code>, or <code>scarlet-witch</code>. See <a href="https://developer.github.com/v3/previews/">API Previews</a>. If <code>options.mediaType.previews</code> was set as default, the new previews will be merged into the default ones. Setting <code>options.mediaType.previews</code> will amend the <code>headers.accept</code> value. <code>options.mediaType.previews</code> will be merged with an existing array set using <code>.defaults()</code>.
</td>
</tr>
<tr>
<th>
<code>options.data</code>
</th>
<td>
Any
</td>
<td>
Set request body directly instead of setting it to JSON based on additional parameters. See <a href="#data-parameter">"The <code>data</code> parameter"</a> below.
</td>
</tr>
<tr>
<th>
<code>options.request</code>
</th>
<td>
Object
</td>
<td>
Pass custom meta information for the request. The <code>request</code> object will be returned as is.
</td>
</tr>
</tbody>
</table>
All other options will be passed depending on the `method` and `url` options.
1. If the option key has a placeholder in the `url`, it will be used as the replacement. For example, if the passed options are `{url: '/orgs/:org/repos', org: 'foo'}` the returned `options.url` is `https://api.github.com/orgs/foo/repos`.
2. If the `method` is `GET` or `HEAD`, the option is passed as a query parameter.
3. Otherwise, the parameter is passed in the request body as a JSON key.
**Result**
`endpoint()` is a synchronous method and returns an object with the following keys:
<table>
<thead align=left>
<tr>
<th>
key
</th>
<th>
type
</th>
<th width=100%>
description
</th>
</tr>
</thead>
<tbody align=left valign=top>
<tr>
<th><code>method</code></th>
<td>String</td>
<td>The http method. Always lowercase.</td>
</tr>
<tr>
<th><code>url</code></th>
<td>String</td>
<td>The url with placeholders replaced with passed parameters.</td>
</tr>
<tr>
<th><code>headers</code></th>
<td>Object</td>
<td>All header names are lowercased.</td>
</tr>
<tr>
<th><code>body</code></th>
<td>Any</td>
<td>The request body if one is present. Only for <code>PATCH</code>, <code>POST</code>, <code>PUT</code>, <code>DELETE</code> requests.</td>
</tr>
<tr>
<th><code>request</code></th>
<td>Object</td>
<td>Request meta option, it will be returned as it was passed into <code>endpoint()</code></td>
</tr>
</tbody>
</table>
### `endpoint.defaults()`
Override or set default options. Example:
```js
const request = require("request");
const myEndpoint = require("@octokit/endpoint").defaults({
baseUrl: "https://github-enterprise.acme-inc.com/api/v3",
headers: {
"user-agent": "myApp/1.2.3",
authorization: `token 0000000000000000000000000000000000000001`
},
org: "my-project",
per_page: 100
});
request(myEndpoint(`GET /orgs/:org/repos`));
```
You can call `.defaults()` again on the returned method, the defaults will cascade.
```js
const myProjectEndpoint = endpoint.defaults({
baseUrl: "https://github-enterprise.acme-inc.com/api/v3",
headers: {
"user-agent": "myApp/1.2.3"
},
org: "my-project"
});
const myProjectEndpointWithAuth = myProjectEndpoint.defaults({
headers: {
authorization: `token 0000000000000000000000000000000000000001`
}
});
```
`myProjectEndpointWithAuth` now defaults the `baseUrl`, `headers['user-agent']`,
`org` and `headers['authorization']` on top of `headers['accept']` that is set
by the global default.
### `endpoint.DEFAULTS`
The current default options.
```js
endpoint.DEFAULTS.baseUrl; // https://api.github.com
const myEndpoint = endpoint.defaults({
baseUrl: "https://github-enterprise.acme-inc.com/api/v3"
});
myEndpoint.DEFAULTS.baseUrl; // https://github-enterprise.acme-inc.com/api/v3
```
### `endpoint.merge(route, options)` or `endpoint.merge(options)`
Get the defaulted endpoint options, but without parsing them into request options:
```js
const myProjectEndpoint = endpoint.defaults({
baseUrl: "https://github-enterprise.acme-inc.com/api/v3",
headers: {
"user-agent": "myApp/1.2.3"
},
org: "my-project"
});
myProjectEndpoint.merge("GET /orgs/:org/repos", {
headers: {
authorization: `token 0000000000000000000000000000000000000001`
},
org: "my-secret-project",
type: "private"
});
// {
// baseUrl: 'https://github-enterprise.acme-inc.com/api/v3',
// method: 'GET',
// url: '/orgs/:org/repos',
// headers: {
// accept: 'application/vnd.github.v3+json',
// authorization: `token 0000000000000000000000000000000000000001`,
// 'user-agent': 'myApp/1.2.3'
// },
// org: 'my-secret-project',
// type: 'private'
// }
```
### `endpoint.parse()`
Stateless method to turn endpoint options into request options. Calling
`endpoint(options)` is the same as calling `endpoint.parse(endpoint.merge(options))`.
## Special cases
<a name="data-parameter"></a>
### The `data` parameter – set request body directly
Some endpoints such as [Render a Markdown document in raw mode](https://developer.github.com/v3/markdown/#render-a-markdown-document-in-raw-mode) don’t have parameters that are sent as request body keys, instead, the request body needs to be set directly. In these cases, set the `data` parameter.
```js
const options = endpoint("POST /markdown/raw", {
data: "Hello world github/linguist#1 **cool**, and #1!",
headers: {
accept: "text/html;charset=utf-8",
"content-type": "text/plain"
}
});
// options is
// {
// method: 'post',
// url: 'https://api.github.com/markdown/raw',
// headers: {
// accept: 'text/html;charset=utf-8',
// 'content-type': 'text/plain',
// 'user-agent': userAgent
// },
// body: 'Hello world github/linguist#1 **cool**, and #1!'
// }
```
### Set parameters for both the URL/query and the request body
There are API endpoints that accept both query parameters as well as a body. In that case, you need to add the query parameters as templates to `options.url`, as defined in the [RFC 6570 URI Template specification](https://tools.ietf.org/html/rfc6570).
Example
```js
endpoint(
"POST https://uploads.github.com/repos/octocat/Hello-World/releases/1/assets{?name,label}",
{
name: "example.zip",
label: "short description",
headers: {
"content-type": "text/plain",
"content-length": 14,
authorization: `token 0000000000000000000000000000000000000001`
},
data: "Hello, world!"
}
);
```
## LICENSE
[MIT](LICENSE)