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Web Services
============
.. sectnum::
:Author: Manuel Rego Casasnovas
:Contact: rego@igalia.com
:Date: 28/11/2012
:Copyright:
Some rights reserved. This document is distributed under the Creative
Commons Attribution-ShareAlike 3.0 licence, available in
http://creativecommons.org/licenses/by-sa/3.0/.
:Abstract:
Basic documentation about LibrePlan web services usage.
.. contents:: Table of Contents
Introduction
------------
Inside ``scripts/rest-clients/`` folder of LibrePlan source code, you can find
several scripts to test LibrePlan web services. There are web services for
most import entities in the application. And if needed more could be easily
developed.
All *integration entities* (LibrePlan entities that can be exported and/or
imported) has a common attribute called ``code``. This field would be the one
used to share information between LibrePlan and other systems or other LibrePlan
instances.
LibrePlan web services are REST based. But, they are just using two HTTP
methods with the following meaning:
* ``GET``: Used to extract information from LibrePlan. For each case they will
return a list with all the entities. For example, resources web service will
return a list with all application resources.
You can also pass ``code`` attribute (since LibrePlan 1.2) in order to return
just one entity sending the code as a GET parameter.
* ``POST``: Used to add and update information in LibrePlan. These services will
receive a XML file with a list of entities. For each entity there could be 2
different cases:
* If it already exists: Update entity with new data.
* If it does not exist: Add the new entity.
These means that delete is not allowed for all the entities in the web services,
in that way only new info could be added or updated. This is because of entities
are related with others and remove operation could be dangerous. Anyway for some
specific entities the delete operation has been implemented.
Requirements
------------
These scripts are written in bash so you need to be running a bash terminal to
use them. And they use cURL to do the HTTP requests, you can install it with the
following command in Debian based distributions::
# apt-get install curl
Moreover, it is recommended to have Tidy available in your system. You can
install it with the following command in Debian based distributions::
# apt-get install tidy
In openSUSE with::
# zypper install tidy
Or in Fedora with::
# yum install tidy
Default credentials
-------------------
In order to test these scripts you will need an user with reader and writer
permissions for web services of LibrePlan. Default credentials are:
* Reader permission:
* User: ``wsreader``
* Password: ``wsreader``
* Writer permission:
* User: ``wswriter``
* Password: ``wswriter``
.. NOTE::
LibrePlan web services use `HTTP Basic Authentication`_
.. _`HTTP Basic Authentication`: http://www.w3.org/Protocols/HTTP/1.0/spec.html#BasicAA
Common parameters
-----------------
There are already defined several parameters to be used in the scripts to define
the server to execute the tests:
Demo environment (``without parameters``) - default
Use server where demo is launched using the following URL:
``http://demo.libreplan.dev/libreplan/``
Example::
$ ./export-resources.sh
Production environment (``--prod``)
Use server deployed with Tomcat in a production deployment in the following
URL: ``http://localhost:8080/libreplan/`` (the installation done by Debian
package).
Example::
$ ./export-resources.sh --prod
Development environment (``--dev``)
Use server deployed with Jetty during development in the following URL:
``http://localhost:8080/libreplan-webapp/``
Example::
$ ./export-resources.sh --dev
XML Schemas
-----------
To get XML schema use the following script::
$ get-xml-schema.sh <service-path>
Example::
$ get-xml-schema.sh resources
You can also get it with a browser going to the following URL using a user with
read credentials for web services: ``/ws/rest/<service-path>/?_wadl&_type=xml``
Export scripts
--------------
There are several scripts to just get information from LibrePlan system. They
alway start with ``export-`` prefix. These scripts usually don't need any
parameter (apart from the one to select the environment). They will return a XML
output with the data requested.
Example::
$ ./export-resources.sh
To export just one specific resource by code you can add a new extra parameter.
Example::
$ ./export-resources.sh WORKER00011
Import scripts
--------------
As for the previous point, in order to insert data in LibrePlan system thought
web services there are several scripts with prefix ``import-``. In this case,
these scripts need a special parameter, that would be a XML file with data to be
inserted in LibrePlan. There are usually files with ``-sample`` suffix as
example data. Again, output for these scripts is a XML message with the possible
errors trying to insert the data in the system.
Example::
$ ./import-resources.sh resources-sample.xml
Available web services
----------------------
Business entities
~~~~~~~~~~~~~~~~~
For each entity there are the following methods:
* Export all:
* HTTP method: ``GET``
* No parameters
* URL: ``/ws/rest/<service-path>/``
* Export one:
* HTTP method: ``GET``
* Parameter: ``entity-code``
* URL: ``/ws/rest/<service-path>/<entity-code>/``
* Import one or more:
* HTTP method: ``POST``
* No parameters
* URL: ``/ws/rest/<service-path>/``
* Remove entity (only available for work reports and order elements):
* HTTP method: ``DELETE``
* Parameter: ``entity-code``
* URL: ``/ws/rest/<service-path>/<entity-code>/``
* Special URL for work report lines:
``/ws/rest/workreports/line/<entity-code>/``
Supported entities:
* Exception Days:
* Service path: ``calendarexceptiontypes``
* DTO: ``org.libreplan.ws.calendarexceptiontypes.api.CalendarExceptionTypeDTO``
* Business class: ``org.libreplan.business.calendars.entities.CalendarExceptionType``
* Calendars:
* Service path: ``calendars``
* DTO: ``org.libreplan.ws.calendars.api.BaseCalendarDTO``
* Business class: ``org.libreplan.business.calendars.entities.BaseCalendar``
* Cost categories:
* Service path: ``costcategories``
* DTO: ``org.libreplan.ws.costcategories.api.CostCategoryDTO``
* Business class: ``org.libreplan.business.costcategories.entities.CostCategory``
* Criteria:
* Service path: ``criteriontypes``
* DTO: ``org.libreplan.ws.resources.criterion.api.CriterionTypeDTO``
* Business class: ``org.libreplan.business.resources.entities.CriterionType``
* Labels:
* Service path: ``labels``
* DTO: ``org.libreplan.ws.labels.api.LabelTypeDTO``
* Business class: ``org.libreplan.business.labels.entities.LabelType``
* Materials:
* Service path: ``materialcategories``
* DTO: ``org.libreplan.ws.materials.api.MaterialCategoryDTO``
* Business class: ``org.libreplan.business.materials.entities.MaterialCategory``
* Projects:
* Service path: ``orderelements``
* DTO: ``org.libreplan.ws.common.api.OrderDTO``
* Business class: ``org.libreplan.business.orders.entities.Order``
* Resources:
* Service path: ``resources``
* DTO: ``org.libreplan.ws.resources.api.ResourceDTO``
* Business class: ``org.libreplan.business.resources.entities.Resource``
* Work Hours:
* Service path: ``typeofworkhours``
* DTO: ``org.libreplan.ws.typeofworkhours.api.TypeOfWorkHoursDTO``
* Business class: ``org.libreplan.business.costcategories.entities.TypeOfWorkHours``
* Unit Measures:
* Service path: ``unittypes``
* DTO: ``org.libreplan.ws.typeofworkhours.api.TypeOfWorkHoursDTO``
* Business class: ``org.libreplan.business.materials.entities.UnitType``
* Work Reports:
* Service path: ``workreports``
* DTO: ``org.libreplan.ws.workreports.api.WorkReportDTO``
* Business class: ``org.libreplan.business.workreports.entities.WorkReport``
* Expense Sheets:
* Service path: ``expenses``
* DTO: ``org.libreplan.ws.expensesheets.api.ExpenseSheetListDTO``
* Business class: ``org.libreplan.business.expensesheet.entities.ExpenseSheet``
Other
~~~~~
* Resource hours:
* Methods:
* Export all resource hours between two dates:
* HTTP method: ``GET``
* Parameters: ``<start-date>`` and ``<end-date>``
* URL: ``/ws/rest/resourceshours/<start-date>/<end-date>/``
* Export all resource hours between two dates for a specified resource:
* HTTP method: ``GET``
* Parameters: ``<start-date>``, ``<end-date>`` and ``<resource-code>``
* URL: ``/ws/rest/resourceshours/<resource-code>/<start-date>/<end-date>/``
* DTO: ``org.libreplan.ws.resources.api.ResourceWorkedHoursListDTO``
Bound users
~~~~~~~~~~~
Special services intended to be used by bound resources. The user and password
for the service correspond to the bound user.
There are 3 services:
* My tasks:
* Export assigned tasks to the bound user:
* HTTP method: ``GET``
* No parameters
* URL: ``/ws/rest/bounduser/mytasks/``
* DTO: ``org.libreplan.ws.boundusers.api.TaskListDTO``
* Timesheets by task:
* Export the personal timesheets data of the bound user for a task:
* HTTP method: ``GET``
* Parameters: ``<task-code>``
* URL: ``/ws/rest/bounduser/timesheets/<task-code>``
* DTO: ``org.libreplan.ws.boundusers.api.PersonalTimesheetEntryListDTO``
* Import personal timesheets:
* Import personal timesheets of the bound user:
* HTTP method: ``POST``
* No parameters
* URL: ``/ws/rest/bounduser/timesheets/``
* DTO: ``org.libreplan.ws.boundusers.api.PersonalTimesheetEntryListDTO``
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