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Line 121: − − == Notifications == − − It is possible to subscribe to server events. Notification will happen using HTML5 [[wikipedia:Server-sent_events|Server-sent events]]. − − To start subscription, send the following request: − − '''GET''' /?cmd=subscribe[&only_commits=1] − − Where: − * {{Code|only_commits}},<br>subscribers can be notified only with ''commit'' events; that is useful to minimize interactions between server and clients. − − Response will be served with ''text/event-stream'' MIME type for default SSE message type. SSE message will be a JSONified object with the following, at least, attributes: − − * {{Code|event}}<br>event type.
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To better understand this API, see technical explanation of the [[Platform_Team/Sugar_Network/Architecture#Conceptual_level|conceptual level]] and [[Platform_Team/Sugar_Network/Objects_model|objects model]] in particular.
To better understand this API, see technical explanation of the [[Platform_Team/Sugar_Network/Architecture#Conceptual_level|conceptual level]] and [[Platform_Team/Sugar_Network/Objects_model|objects model]] in particular.
The API operates with [[#Resources|resources]] that are collections of objects. All objects are identified by global unique identifiers, GUIDs. Resources might support [[#Actions|common actions]]. While processing requests, server might generate [[#events|events]]. There are [[#Events|common events]] that all resources might generate.
The API operates with [[Sugar Network]] [[#Sugar_Network_resources|resources]] that are collections of objects. All objects are identified by global unique identifiers, GUIDs. Resources might support [[#Common_actions|common actions]]. While processing requests, server might generate [[#Notifications|events]]. Besides, API provides [[#Additional_resources|extra resources]] that are not [[Sugar Network]] objects.
The API is [[Wikipedia:Restful|RESTful]] and being served via HTTP(S) using [[Wikipedia:Json|JSON]] notation. The common RESTful request url format is:
The API is [[Wikipedia:Restful|RESTful]] and being served via HTTP(S) using [[Wikipedia:Json|JSON]] notation. The common RESTful request url format is:
If request needs to send data, it should send Python dictionary converted to [[Wikipedia:Json|JSON]] notation.
If request needs to send data, it should send Python dictionary converted to [[Wikipedia:Json|JSON]] notation.
In most cases (see [[#Actions|actions]] for exceptions), server replies with dictionary in JSON notation. If request was failed, the replied dictionary will contain {{Code|request}}, with original request, and {{Code|error}}, with error message, keys. Otherwise, dictionary keys in response will be set accordingly to the particular request.
In [[#Common_actions|most cases]], server replies with dictionary in JSON notation. If request was failed, the replied dictionary will contain {{Code|request}}, with original request, and {{Code|error}}, with error message, keys. In the rest of cases, response might be variable.
== Resources ==
== Sugar Network resources ==
{{:Platform_Team/Sugar_Network/Objects_model}}
{{:Platform_Team/Sugar_Network/Objects_model}}
== Actions ==
=== Common actions ===
List of actions common of all resources.
List of actions common of all resources.
:* property value in JSON notation.
:* property value in JSON notation.
== packagekit-backend-presolve ==
=== Notifications ===
It is possible to subscribe to server events. Notification will happen using HTML5 [[wikipedia:Server-sent_events|Server-sent events]].
To start subscription, send the following request:
'''GET''' /?cmd=subscribe[&only_commits=1]
Where:
* {{Code|only_commits}},<br>subscribers can be notified only with ''commit'' events; that is useful to minimize interactions between server and clients.
Response will be served with ''text/event-stream'' MIME type for default SSE message type. SSE message will be a JSONified object with the following, at least, attributes:
* {{Code|event}}<br>event type.
== Additional resources ==
In addition to direct Sugar Network [[#Resources|resources]], API provides related content.
=== packagekit-backend-presolve ===
In order to provide GNU/Linux-distribution-agnostic launches of activities, Sugar Network API supports [[Platform_Team/packagekit-backend-presolve|packagekit-backend-presolve]] users.
In order to provide GNU/Linux-distribution-agnostic launches of activities, Sugar Network API supports [[Platform_Team/packagekit-backend-presolve|packagekit-backend-presolve]] users.
[[Sugar Network]] supports a metadata ''database'' for all packages that are being used as dependencies for activities it provides (see ''Packages'' project using one of the existing [[Sugar_Network#Try_it|Sugar Network clients]]). Every entry in the ''database'' contains a map of native package names for a particular GNU/Linux distribution. So, activities mention only the ''database'' entry name as a dependency. [[Sugar Network]] will automatically generate dependency graphs for packagekit-backend-presolve using the ''metadata'' database. Afterwards, on the launch side, the ''database'' entry name will be resolved to a package name according to the local distribution and it will be passed to the PackageKit (on XO laptops, packagekit-backend-presolve will be used; on regular platforms, the default PackageKit back-end is used).
[[Sugar Network]] supports a metadata ''database'' for all packages that are being used as dependencies for activities it provides (see ''Packages'' project using one of the existing [[Sugar_Network#Try_it|Sugar Network clients]]). Every entry in the ''database'' contains a map of native package names for a particular GNU/Linux distribution. So, activities mention only the ''database'' entry name as a dependency. [[Sugar Network]] will automatically generate dependency graphs for packagekit-backend-presolve using the ''metadata'' database. Afterwards, on the launch side, the ''database'' entry name will be resolved to a package name according to the local distribution and it will be passed to the PackageKit (on XO laptops, packagekit-backend-presolve will be used; on regular platforms, the default PackageKit back-end is used).
== Getting involved ==
== Getting involved ==
{{:Sugar_Network/Feedback}}
{{:Sugar_Network/Feedback}}