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Nächste Überarbeitung 		Vorhergehende Überarbeitung
wiki:software:beuthbot:gateway [13.12.2019 10:30]
Timo Bruns [Further Development] 		wiki:software:beuthbot:gateway [24.01.2020 15:18] (aktuell)
Tolga Karaoglu [Overview]
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 [//Appendum:// We decided to establish the server using [[https://nodejs.org/en/|node.js]]. That's why an installation of node and npm is necessary.] [//Appendum:// We decided to establish the server using [[https://nodejs.org/en/|node.js]]. That's why an installation of node and npm is necessary.]
 +
 +
  
 === Telegram Bot === === Telegram Bot ===
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 During the implementation of the **gateway** we used [[https://www.sohamkamani.com/blog/2016/09/21/making-a-telegram-bot/|this manual]] as a kind of orientation. During the implementation of the **gateway** we used [[https://www.sohamkamani.com/blog/2016/09/21/making-a-telegram-bot/|this manual]] as a kind of orientation.
  
 +
 +<WRAP pagebreak></WRAP>
 ==== Overview ==== ==== Overview ====
  
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 </uml> </uml>
  
 +This class diagram shows the structure around the gateway. Here it is important that there is a StandardizationLayer beforehand, which standsardize the incoming messages. The gateway then directs the message to an NLU service where we get the evaluated object back and compare the scores. The best evaluated message is then forwarded to the registry.
 ==== Functionalities ==== ==== Functionalities ====
  
 === Variables === === Variables ===
  
-<code>+The defined variables are based on ''express'', ''body-parser'' and ''axios'': 
 + 
 +<code javascript>
 var express = require('express') var express = require('express')
 var app = express() var app = express()
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 === API-Call === === API-Call ===
  
-<code>+Each time our bot is mesaged in the chat, the message will be passed on to the gateway. This is mapped via ''cURL''. All incoming messages use the route ''\message-in''. If the message has no content, the response is empty. The code for the described behaviour looks as follows: 
 + 
 +<code javascript>
 app.post('/message-in', function(req, res) { // This is the route the API will call app.post('/message-in', function(req, res) { // This is the route the API will call
     const { message } = req.body     const { message } = req.body
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 === Microsoft Azure - Cognitive Services - Headers === === Microsoft Azure - Cognitive Services - Headers ===
  
-<code>+Microsot Azure predetermines its specific header that should be used for ''HTTP-POST''. The header looks like this: 
 + 
 +<code javascript>
     const options = {     const options = {
         headers: {         headers: {
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 === HTTP-POST === === HTTP-POST ===
  
-<code>+This section of code shows a request to the Azure service and generates a response which is sent directly to the bot. The code is shaded like this because Axios processes the messages asyncronous and we have to ensure a response has already been received. The following code snippet shows this more in detail: 
 + 
 +<code javascript>
     axios.post('https://northeurope.api.cognitive.microsoft.com/text/analytics/v2.1/sentiment', {     axios.post('https://northeurope.api.cognitive.microsoft.com/text/analytics/v2.1/sentiment', {
         "documents": [{         "documents": [{
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 === Server === === Server ===
  
-<code>+The server is listening on port ''3000'': 
 + 
 +<code javascript>
 // Finally, start our server // Finally, start our server
 app.listen(3000, function() { app.listen(3000, function() {
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 ==== Versioning ==== ==== Versioning ====
  
-We use [[https://git.ziemers.de/|GitLab]] for versioning.+We use [[https://github.com/|GitHub]] for versioning.
  
 ==== Authors ==== ==== Authors ====
  
-- **Christopher Lehmann** - //Development// & //Documentation//\\+- **Christopher Lehmann** - //Development// & //Documentation// [[https://github.com/Chr1ssy|GitHub]]\\
 \\ \\
-- **Timo Bruns** - //Development//\\ +- **Timo Bruns** - //Development// [[https://github.com/Tarry93|GitHub]] \\\\ 
 +  
 +See also the list of [[https://github.com/beuthbot/gateway/graphs/contributors|contributors]] who participated in this project. 
 +<WRAP pagebreak></WRAP>
wiki/software/beuthbot/gateway.1576229439.txt.gz · Zuletzt geändert: 13.12.2019 10:30 von Timo Bruns

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