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Drupal Web Services

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Authored by: Chaitanya Anil KulkarniPresented by: Chaitanya Anil Kulkarni

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Agenda

What is Rest API Drupal web services modules Drupal default web services Browser tools Extending existing web services Custom web services Push Notifications

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What is Rest API

Representational state transfer (REST) o Is a way to communicate with server for performing CURD operationso It is considered as alternative to more complex mechanisms like SOAP

Basic terminologieso Resource Collection of URLs [http://example.com/resources]o RESTful API HTTP methods GET, PUT, POST and DELETE.

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Return Types

Web Services return format

JSON

{ "glossary": { "title": "example glossary“ } }

XML

<glossary><title>example glossary</title></glossary>.

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Drupal Web Services

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Services Modules

Serviceso Provide an API for creating web services.o It provides ability for creating methods/actions.

REST Servero Provides an REST server.o Returns output based on configured element of each service.

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Browser Tools

Below are tools that allows you to interact with web services and inspect the results

Firefox Add-on - PosterChrome Extension - REST Console

We need to specify specified set of parameter consumed by web services with particular action[GET, POST, PUT, DELETE].

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Folder Structure

Drupal follows specific set of folder structure to create custom web services.

o CustomModule1_resource

Resource file consists of operations[CURD] and actions[custom functionality]

Services file consists of predefined set of functions for performing CURD operation and access permissions for web services.

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Push Notification

We can implement push notification by using Google cloud messaging.

GCM Connection server takes messages from 3rd party application server and send them to GCM enabled Android application.

Ports required to be opened from server must be 5228, 5229, and 5230.

Reference link

http://developer.android.com/google/gcm/http.html

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