[refs #374] Patch Rack::Throttle http_error method. Finish main page

text
This commit is contained in:
konstantin.grabar 2012-09-19 19:02:49 +04:00
parent 11b7834bbc
commit f7d28dd23c
4 changed files with 36 additions and 276 deletions

View File

@ -16,18 +16,14 @@ All of the urls in this manual have the same tail: .json. Because the default
* <a href="#authentication">Authentication</a> * <a href="#authentication">Authentication</a>
* <a href="#pagination">Pagination</a> * <a href="#pagination">Pagination</a>
* <a href="#rate-limiting">Rate Limiting</a> * <a href="#rate-limiting">Rate Limiting</a>
* <a href="#conditional-requests">Conditional Requests</a>
* <a href="#cross-origin-resource-sharing">Cross Origin Resource Sharing</a>
* <a href="#json-p-callbacks">JSON-P Callbacks</a>
## Schema ## Schema
All API access is over HTTPS, and accessed from the `api.github.com` All API access is over HTTPS and all data is
domain (or through `yourdomain.com/api/v3/` for enterprise). All data is
sent and received as JSON. sent and received as JSON.
<pre class="terminal"> <pre class="terminal">
$ curl -i https://api.github.com $ curl -i https://abf.rosalinux.ru
HTTP/1.1 302 Found HTTP/1.1 302 Found
Server: nginx/1.0.12 Server: nginx/1.0.12
@ -35,88 +31,54 @@ Date: Mon, 20 Feb 2012 11:15:49 GMT
Content-Type: text/html;charset=utf-8 Content-Type: text/html;charset=utf-8
Connection: keep-alive Connection: keep-alive
Status: 302 Found Status: 302 Found
X-RateLimit-Limit: 5000 X-RateLimit-Limit: 500
ETag: "d41d8cd98f00b204e9800998ecf8427e" Location: http://abf.rosalinux.ru
Location: http://developer.github.com X-RateLimit-Remaining: 499
X-RateLimit-Remaining: 4999
Content-Length: 0 Content-Length: 0
</pre> </pre>
Blank fields are included as `null` instead of being omitted. Blank fields are included as `null` instead of being omitted.
All timestamps are returned in ISO 8601 format: All timestamps are returned in unixtime format:
YYYY-MM-DDTHH:MM:SSZ 1346762587
## Client Errors ## Client Errors
There are three possible types of client errors on API calls that There are three possible types of client errors on API calls that
receive request bodies: receive request bodies:
1. Sending invalid JSON will result in a `400 Bad Request` response. 1. Request without authorization will return error message:
HTTP/1.1 400 Bad Request {"error":"You need to sign in or sign up before continuing."}
Content-Length: 35
{"message":"Problems parsing JSON"} 2. Rate limit exceed will return this:
2. Sending the wrong type of JSON values will result in a `400 Bad {"message":"403 Forbidden | Rate Limit Exceeded"}
Request` response.
HTTP/1.1 400 Bad Request 3. Some requests can cause cancer of 404, 500 and 503 errors. In these situatins you will receive such data:
Content-Length: 40
{"message":"Body should be a JSON Hash"} <%= json(:error_404) %>
3. Sending invalid fields will result in a `422 Unprocessable Entity` <%= json(:error_500) %>
response.
HTTP/1.1 422 Unprocessable Entity <%= json(:error_503) %>
Content-Length: 149
{ <%= json(:error_401) %>
"message": "Validation Failed",
"errors": [
{
"resource": "Issue",
"field": "title",
"code": "missing_field"
}
]
}
All error objects have resource and field properties so that your client If you don't have enough rights for requested action, you will receive
can tell what the problem is. There's also an error code to let you error response such this:
know what is wrong with the field. These are the possible validation error
codes:
missing <%= json(:error_403) %>
: This means a resource does not exist.
missing\_field and http status code will be 403.
: This means a required field on a resource has not been set.
invalid
: This means the formatting of a field is invalid. The documentation
for that resource should be able to give you more specific information.
already\_exists
: This means another resource has the same value as this field. This
can happen in resources that must have some unique key (such as Label
names).
If resources have custom validation errors, they will be documented with
the resource.
## HTTP Verbs ## HTTP Verbs
Where possible, API v3 strives to use appropriate HTTP verbs for each Where possible, API v1 strives to use appropriate HTTP verbs for each
action. action.
HEAD
: Can be issued against any resource to get just the HTTP header info.
GET GET
: Used for retrieving resources. : Used for retrieving resources.
@ -124,13 +86,6 @@ POST
: Used for creating resources, or performing custom actions (such as : Used for creating resources, or performing custom actions (such as
merging a pull request). merging a pull request).
PATCH
: Used for updating resources with partial JSON data. For instance, an
Issue resource has `title` and `body` attributes. A PATCH request may
accept one or more of the attributes to update the resource. PATCH is a
relatively new and uncommon HTTP verb, so resource endpoints also accept
POST requests.
PUT PUT
: Used for replacing resources or collections. For PUT requests : Used for replacing resources or collections. For PUT requests
with no `body` attribute, be sure to set the `Content-Length` header to zero. with no `body` attribute, be sure to set the `Content-Length` header to zero.
@ -140,33 +95,7 @@ DELETE
## Authentication ## Authentication
There are two ways to authenticate through GitHub API v3: Sory, where is no authentication at the moment :(
Basic Authentication:
<pre class="terminal">
$ curl -u "username" https://api.github.com
</pre>
OAuth2 Token (sent in a header):
<pre class="terminal">
$ curl -H "Authorization: token OAUTH-TOKEN" https://api.github.com
</pre>
OAuth2 Token (sent as a parameter):
<pre class="terminal">
$ curl https://api.github.com/?access_token=OAUTH-TOKEN
</pre>
Read [more about OAuth2](/v3/oauth/). Note that OAuth2 tokens can be [acquired
programmatically](/v3/oauth/#create-a-new-authorization), for applications that
are not websites.
Requests that require authentication will return 404, instead of 403, in some places.
This is to prevent the accidental leakage of private repositories to unauthorized
users.
## Pagination ## Pagination
@ -175,18 +104,15 @@ default. You can specify further pages with the `?page` parameter. For some
resources, you can also set a custom page size up to 100 with the `?per_page` parameter. resources, you can also set a custom page size up to 100 with the `?per_page` parameter.
<pre class="terminal"> <pre class="terminal">
$ curl https://api.github.com/user/repos?page=2&per_page=100 $ curl https://abf.rosalinux.ru/api/v1/build_lists.json?page=2&per_page=100
</pre> </pre>
The pagination info is included in [the Link The pagination info is included in [the Link
header](http://www.w3.org/Protocols/9707-link-header.html). It is important to header](http://www.w3.org/Protocols/9707-link-header.html). It is important to
follow these Link header values instead of constructing your own URLs. In some follow these Link header values instead of constructing your own URLs.
instances, such as in the [Commits
API](/v3/repos/commits/), pagination is based on
SHA1 and not on page number.
Link: <https://api.github.com/user/repos?page=3&per_page=100>; rel="next", Link: <https://abf.rosalinux.ru/api/v1/build_lists.json?page=3&per_page=100>; rel="next",
<https://api.github.com/user/repos?page=50&per_page=100>; rel="last" <https://abf.rosalinux.ru/build_lists.json?page=50&per_page=100>; rel="last"
_Linebreak is included for readability._ _Linebreak is included for readability._
@ -211,166 +137,13 @@ login, your OAuth token, or request IP. You can check the returned HTTP
headers of any API request to see your current status: headers of any API request to see your current status:
<pre class="terminal"> <pre class="terminal">
$ curl -i https://api.github.com/users/whatever $ curl -i https://abf.rosalinux.ru/whatever
HTTP/1.1 200 OK HTTP/1.1 200 OK
Status: 200 OK Status: 200 OK
X-RateLimit-Limit: 5000 X-RateLimit-Limit: 500
X-RateLimit-Remaining: 4966 X-RateLimit-Remaining: 496
</pre> </pre>
You can also check your rate limit status without incurring an API hit.
GET /rate_limit
### Rate limit
<%= headers 200 %>
<%= json :rate => {:remaining => 4999, :limit => 5000} %>
<br> <br>
#### Unauthenticated rate limited requests
If you need to make unauthenticated calls but need to use a higher rate limit
associated with your OAuth application, you can send over your client ID and
secret in the query string.
<pre class="terminal">
$ curl -i https://api.github.com/users/whatever?client_id=xxxxxxxxxxxxxx&client_secret=yyyyyyyyyyyyyyyyyyyyy
HTTP/1.1 200 OK
Status: 200 OK
X-RateLimit-Limit: 12500
X-RateLimit-Remaining: 11966
</pre>
This method should only be used for server-to-server calls. You should never
share your client secret with anyone or include it in client-side browser code.
Please [contact us](https://github.com/contact) to request white listed access
for your application. We prefer sites that setup OAuth applications for their
users.
## Conditional Requests
Most responses return `Last-Modified` and `Etag` headers. You can use the values
of these headers to make subsequent requests to those resources using the
`If-Modified-Since` and `If-None-Match` headers, respectively. If the resource
has not changed, the server will return a `304 Not Modified`. Also note: making
a conditional request and receiving a 304 response does not count against your
[Rate Limit](#rate-limiting), so we encourage you to use it whenever possible.
<pre class="terminal">
$ curl -i https://api.github.com/user
HTTP/1.1 200 OK
Cache-Control: private, max-age=60
ETag: "644b5b0155e6404a9cc4bd9d8b1ae730"
Last-Modified: Thu, 05 Jul 2012 15:31:30 GMT
Status: 200 OK
Vary: Accept, Authorization, Cookie
X-RateLimit-Limit: 5000
X-RateLimit-Remaining: 4996
$ curl -i https://api.github.com/user -H "If-Modified-Since: Thu, 05 Jul 2012 15:31:30 GMT"
HTTP/1.1 304 Not Modified
Cache-Control: private, max-age=60
Last-Modified: Thu, 05 Jul 2012 15:31:30 GMT
Status: 304 Not Modified
Vary: Accept, Authorization, Cookie
X-RateLimit-Limit: 5000
X-RateLimit-Remaining: 4996
$ curl -i https://api.github.com/user -H 'If-None-Match: "644b5b0155e6404a9cc4bd9d8b1ae730"'
HTTP/1.1 304 Not Modified
Cache-Control: private, max-age=60
ETag: "644b5b0155e6404a9cc4bd9d8b1ae730"
Last-Modified: Thu, 05 Jul 2012 15:31:30 GMT
Status: 304 Not Modified
Vary: Accept, Authorization, Cookie
X-RateLimit-Limit: 5000
X-RateLimit-Remaining: 4996
</pre>
## Cross Origin Resource Sharing
The API supports Cross Origin Resource Sharing (CORS) for AJAX requests.
you can read the [CORS W3C working draft](http://www.w3.org/TR/cors), or
[this intro](http://code.google.com/p/html5security/wiki/CrossOriginRequestSecurity) from the
HTML 5 Security Guide.
Here's a sample request sent from a browser hitting
`http://some-site.com`:
$ curl -i https://api.github.com -H "Origin: http://some-site.com"
HTTP/1.1 302 Found
Any domain that is registered as an OAuth Application is accepted.
Here's a sample request for a browser hitting [Calendar About Nothing](http://calendaraboutnothing.com/):
$ curl -i https://api.github.com -H "Origin: http://calendaraboutnothing.com"
HTTP/1.1 302 Found
Access-Control-Allow-Origin: http://calendaraboutnothing.com
Access-Control-Expose-Headers: Link, X-RateLimit-Limit, X-RateLimit-Remaining, X-OAuth-Scopes, X-Accepted-OAuth-Scopes
Access-Control-Allow-Credentials: true
This is what the CORS preflight request looks like:
$ curl -i https://api.github.com -H "Origin: http://calendaraboutnothing.com" -X OPTIONS
HTTP/1.1 204 No Content
Access-Control-Allow-Origin: http://calendaraboutnothing.com
Access-Control-Allow-Headers: Authorization, X-Requested-With
Access-Control-Allow-Methods: GET, POST, PATCH, PUT, DELETE
Access-Control-Expose-Headers: Link, X-RateLimit-Limit, X-RateLimit-Remaining, X-OAuth-Scopes, X-Accepted-OAuth-Scopes
Access-Control-Max-Age: 86400
Access-Control-Allow-Credentials: true
## JSON-P Callbacks
You can send a `?callback` parameter to any GET call to have the results
wrapped in a JSON function. This is typically used when browsers want
to embed GitHub content in web pages by getting around cross domain
issues. The response includes the same data output as the regular API,
plus the relevant HTTP Header information.
<pre class="terminal">
$ curl https://api.github.com?callback=foo
foo({
"meta": {
"status": 200,
"X-RateLimit-Limit": "5000",
"X-RateLimit-Remaining": "4966",
"Link": [ // pagination headers and other links
["https://api.github.com?page=2", {"rel": "next"}]
]
},
"data": {
// the data
}
})
</pre>
You can write a javascript handler to process the callback like this:
<pre class="highlight"><code class="language-javascript">function foo(response) {
var meta = response.meta
var data = response.data
console.log(meta)
console.log(data)
}</code></pre>
All of the headers are the same String value as the HTTP Headers with one
notable exception: Link. Link headers are pre-parsed for you and come
through as an array of `[url, options]` tuples.
A link that looks like this:
Link: <url1>; rel="next", <url2>; rel="foo"; bar="baz"
... will look like this in the Callback output:
<%= json "Link" => [
["url1", {:rel => "next"}],
["url2", {:rel => "foo", :bar => "baz"}]] %>

View File

@ -9,7 +9,6 @@ title: Project Build | GitHub API
* <a href="#reject-publish-build-task">Reject publish build task</a> * <a href="#reject-publish-build-task">Reject publish build task</a>
* <a href="#search">Search</a> * <a href="#search">Search</a>
* <a href="#destroy-build-task">Destroy build task</a> * <a href="#destroy-build-task">Destroy build task</a>
* <a href="#and-401-errors">404, 500, 503 and 401 errors</a>
## 1. Show build data ## 1. Show build data
@ -183,21 +182,3 @@ EXAMPLES OF RESPONSES:
You can't destroy build list. Only cancel it. :) You can't destroy build list. Only cancel it. :)
## 8. 404, 500, 503 and 401 errors.
Some requests can cause cancer of 404, 500 and 503 errors. In these situatins you will receive such data:
<%= json(:error_404) %>
<%= json(:error_500) %>
<%= json(:error_503) %>
<%= json(:error_401) %>
If you don't have enough rights for requested action, you will receive
error response such this:
<%= json(:error_403) %>
and http status code will be 403.

View File

@ -42,7 +42,6 @@
<li><a href="/v1/build#reject-publish-build-task">Reject publish build task</a></li> <li><a href="/v1/build#reject-publish-build-task">Reject publish build task</a></li>
<li><a href="/v1/build#search">Search</a></li> <li><a href="/v1/build#search">Search</a></li>
<li><a href="/v1/build#destroy-build-task">Destroy build task</a></li> <li><a href="/v1/build#destroy-build-task">Destroy build task</a></li>
<li><a href="/v1/build#and-401-errors">404, 500, 503 and 401 errors</a></li>
</ul> </ul>
</li> </li>
<li class="js-topic"> <li class="js-topic">

View File

@ -0,0 +1,7 @@
class Rack::Throttle::Limiter
def http_error(code, message = nil, headers = {})
[code, {'Content-Type' => 'application/json; charset=utf-8'}.merge(headers),
Array(({'message' => http_status(code) + " | " + message}.to_json))]
end
end