Différences

Ci-dessous, les différences entre deux révisions de la page.

--- cours:mit_2018_2019:soa4iotlab [2019/01/29 06:00] – [SOA for IoT and WS-SOAP] tigli
+++ cours:mit_2018_2019:soa4iotlab [2019/02/05 06:57] (Version actuelle) – tigli
@@ Ligne 20: / Ligne 20: @@
 [[https://curl.haxx.se/|curl]] is used in command lines or scripts to transfer data.
 Curl is mainly used to send/receive some HTTP messages with command lines. That's the reason why curl is well adapted for first [[https://www.baeldung.com/curl-rest|tests of Rest services]].
@@ Ligne 26: / Ligne 25: @@
 Lot of WS-REST API are available on the web. Big compagnies provide some Cloud of Services using this kind of access. For example the IBM Cloud provides [[https://cloud.ibm.com/catalog?search=REST|its own list of services]].
-**Exercice**: After Signin, test services like TexttoSpeech with curl.
+Look at a "text to speech" demonstration [[https://text-to-speech-demo.ng.bluemix.net/|here]]
+**Exercice**: After Sign up, test services like TexttoSpeech with curl. Find more details in a step by step tutorial [[https://console.bluemix.net/docs/services/text-to-speech/getting-started.html#gettingStarted|here]].
 **Question**: Look at IBM Watson IoT Plateform. What does it provide ?
@@ Ligne 53: / Ligne 54: @@
 {{:cours:mit_2018_2019:node-red_solution_assembly_export.rtf|}}
 ** Rest server : **
@@ Ligne 62: / Ligne 61: @@
 **Exercice**:
 To create a WS-Rest in Node-Red :
-  - Use the http node from the input block to handle request from outside.
+  - Use the http node from the input block to handle request from outside on the following URL: /date
   - Drag the http response node from the output block. This will output the payload of the msg as response of API.
-  - Now go to your browser and hit http://localhost:1880/users to use your WS-REST API.
+  - Add the current date as a response to the REST GET request on /date
+  - Now go to your browser and hit http://localhost:1880/date to use your WS-REST API.
+**Advanced Exercice**: write your own REST server that gets an MQTT topic and provides it through a web service API. // You can extend a past lab MQTT example to do that//.
-**Advanced Exercice**: write your own REST server that getw an MQTT topic and provide it through a web service API. // you can extend a past lab MQTT example to do that//.
@@ Ligne 74: / Ligne 75: @@
 == Get started with WS-SOAP ==
-== WS-SOAP in Node-Red ==
+http://www.dataaccess.com/ provide a list of WS-SOAP.
+The main initial difference between WS-REST and WS-SOAP was the explicit description of the WS-SOAP API in a WSDL format (Web Service Descrition Language).
+** Question**: Thanks to <code> http://www.dataaccess.com/webservicesserver/NumberConversion.wso?WSDL </code> URI, display this description  for  NumberConversion WS-SOAP.
+Look at the different part of this XML file to understand the corresponding SOAP API.
+Test this WS-SOAP with <code>http://www.dataaccess.com/webservicesserver/NumberConversion.wso?op=NumberToWords</code>
-  * Exercice: write your own client programm of a SOAP web service and node-red-contrib-soap package [[https://flows.nodered.org/node/node-red-contrib-soap|SOAP web service]].
+== WS-SOAP in Node-Red ==
-    * Use GetGeoIP [[http://www.webservicex.net/geoipservice.asmx|SOAP Web Services]] to easily look up countries by IP addresses.
-  * Exercice: test your own soap server with // npm install node-red-contrib-soapserver// (see [[https://www.npmjs.com/package/node-red-contrib-soapserver| ]]).
+**Soap client**
-** Soap server Usage **
+**Exercice:** Create a WS-Soap Client to test your own WS-Soap server : <code>http://www.dataaccess.com/webservicesserver/NumberConversion.wso?op=NumberToWords</code>
-This package provides a node that can be used to start a Node-RED flow. The node is called soap server and listens on a configurable TCP port on the host on which Node-RED run. It is important that the port number be supplied as there is no default assumed. The listener is listening for an incoming SOAP/HTTP request. The WSDL that describes the SOAP server can be retrieved through an HTTP GET request using the /soap?wsdl URL and query parameters. For example:  ** http://<node-RED-Host>:<port>/soap?wsdl **.
+To do that in node-red you must install two packages :
-The endpoint for the SOAP request is found at the same address
+  * node-red-contrib-soap
+  * node-red-contrib-soapserver
-<note>
+use the manage palette to install them
-http://<node-RED-Host>:<port>/soap
-</note>
-The interface supplies one operation called startFlow which takes a single parameter as input of type string. When a client invokes that operation, a new Node-RED flow is initiated. The passed in data appears in the msg.payload property of the Node-RED message.
+[[cours:mit_2018_2019:node_red_soap_client_correction|correction]]
-A Node-RED flow that starts with a soap server node should also conclude with a corresponding soap server output node. This is used to pass back a value to the original SOAP client. The string found in msg.payload is returned as the response value.
-  * Exercice: write your own soap server that get an MQTT topic and provide it on web service client  request
-== IoT Use Cases with WS-SOAP  ==
 ==== SOA for IoT and CoAP ====
 {{ :cours:mit_2018_2019:osi-coap.png?300|}}
@@ Ligne 123: / Ligne 121: @@
 [[https://flows.nodered.org/node/node-red-contrib-coap]]
-== IoT Use Cases with CoAP ==
-==== Advanced SOA - Service Registry ====
-== Get started with UDDI ==
-== UDDI in Node-Red ==
-== IoT Use Cases with UDDI ==
-==== Advanced SOA for IoT - Service Discovery Protocol ====
-== Get started with SSDP ==
-== SSDP in Node-Red ==
-== IoT Use Cases with SSDP ==
-==== SOA for IoT  : Web Service for Device (UPnP and DPWS) ====
-== Get started with UPnP ==
-== UPnP in Node-Red ==
-== IoT Use Cases with UPnP ==
-== Get started with DPWS==
-== DPWS in Node-Red ==
-== IoT Use Cases with DPWs ==
-====== Synthesis =======
-Middleware for IoT are deployed on heterogeneous IoT Plateform to provide a more homogeneous way to develop some distributed software applications. Most of the time, we distinguish four levels : IoT Devices, Edge, Fog, and Cloud.
-**Exercice :** Find in the technical and scientific litterature some definitions and recent surveys on these concepts for IoT. Write a paper (Max 2 pages long) on this 4-levels point of view of distributed system that can then emerged like CyberPhysical Systems.
-For example you can argue :
-  * why differents patterns of communication are used in this 4-levels System,
-  * what are the famoust technologies for each levels
-<note>
-This paper will be sent **To tigli@unice.fr** with ** Subject : <Your Name> IoT Paper 2019 ** as to attached files : one .zip with sources (tex/docx) and one pdf,  no later than 10th of February
-</note>