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automate Tweets from curated data #7

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BryanWilhite opened this issue Dec 30, 2019 · 11 comments
Closed

automate Tweets from curated data #7

BryanWilhite opened this issue Dec 30, 2019 · 11 comments
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enhancement New feature or request

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@BryanWilhite
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already tried 3rd-party solutions (e.g. HootSuite)

there are two recognized ways to do this in the Studio:

  1. use the Twitter Connector in Azure Logic Apps to send tweets driven on a scheduler and Azure Storage
  2. use LinqToTwitter in Azure Functions
@BryanWilhite BryanWilhite added the enhancement New feature or request label Dec 30, 2019
@BryanWilhite BryanWilhite self-assigned this Dec 30, 2019
BryanWilhite added a commit that referenced this issue Dec 30, 2019
@BryanWilhite
#7 looking for URI reader
8c961b9
@BryanWilhite
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before Tweets can be published a status has to be written which means HTML pages have to be parsed; the first library for this task is HtmlAgilityPack [NuGet] followed by other picks:

BryanWilhite added a commit that referenced this issue Dec 30, 2019
@BryanWilhite
🚜 ☔ converted TwitterControllerTests to xunit, #7
1496a64
BryanWilhite added a commit that referenced this issue Dec 30, 2019
@BryanWilhite
🔬 #7
0a9ddca
@BryanWilhite
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this exploration shows the shape of the data pulled from an HTML page: https://github.com/BryanWilhite/LinqPad/blob/master/Queries/funkyKB/HtmlAgilityPack%20-%20page%20parsing.linq

{
  "metaTwitterImage": "",
  "metaTwitterHandle": "",
  "metaTwitterTitle": "",
  "metaTwitterDescription": "",
  "metaOgImage": "",
  "metaOgTitle": "",
  "metaOgDescription": "",
  "title": ""
}

BryanWilhite added a commit that referenced this issue Dec 30, 2019
@BryanWilhite
🚜 ☔ #7 converted Songhay.Social.Shell.Tests to xunit
3a5b9b0
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Test Name:	Songhay.Social.Shell.Tests.HtmlWebTests.ShouldLoad(location: "https://codeopinion.com/avoiding-nullreferenceexce"...)
Test Outcome:	Passed
Result StandardOutput:	
DocumentNode: <!doctype html>
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<html class="no-js ie7" lang="en-US"> <![endif]-->
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<link rel="profile" href="http://gmpg.org/xfn/11">

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<article id="post-5278" class="post-5278 post type-post status-publish format-standard hentry category-dotnet category-asp-net-core">
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			<h1 class="entry-title ">Avoiding the NullReferenceException</h1>

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				<span class="posted-on"><i class="fa fa-calendar-alt"></i> <a href="https://codeopinion.com/avoiding-nullreferenceexception/" rel="bookmark"><time class="entry-date published" datetime="2017-10-12T09:28:56-05:00">October 12, 2017</time><time class="updated" datetime="2017-10-26T09:48:01-05:00">October 26, 2017</time></a></span><span class="byline"> <i class="fa fa-user"></i> <span class="author vcard"><a class="url fn n" href="https://codeopinion.com/author/dcomartin/">Derek Comartin</a></span></span>
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				 <a href="https://codeopinion.com/category/dotnet/" rel="category tag">.NET</a>, <a href="https://codeopinion.com/category/asp-net-core/" rel="category tag">ASP.NET Core</a>				</span>
								
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			<p><a href="https://codeopinion.com/wp-content/uploads/2017/10/brace-yourself-nullreferenceexception-incoming.jpg"><img class="alignright size-medium wp-image-5279" src="https://codeopinion.com/wp-content/uploads/2017/10/brace-yourself-nullreferenceexception-incoming-300x225.jpg" alt="" width="300" height="225" srcset="https://codeopinion.com/wp-content/uploads/2017/10/brace-yourself-nullreferenceexception-incoming-300x225.jpg 300w, https://codeopinion.com/wp-content/uploads/2017/10/brace-yourself-nullreferenceexception-incoming.jpg 400w" sizes="(max-width: 300px) 100vw, 300px" data-pagespeed-url-hash="547997332" onload="pagespeed.CriticalImages.checkImageForCriticality(this);"></a>Easily, by a landslide, the most common exception I&#8217;ve run into in C# is the <code class="EnlighterJSRAW" data-enlighter-language="csharp">NullReferenceException</code>.  Second would be an <code class="EnlighterJSRAW" data-enlighter-language="csharp">InvalidOperationException</code>.  But <code class="EnlighterJSRAW" data-enlighter-language="csharp">NullReferenceException</code> wins as most occurred exception hands down.  This quick post shows how we can start avoiding the NullReferenceException.</p>
<p><strong>I despise null.  I despise null checks. </strong></p>
<p>What if there was a way to get rid of null checks?  Luckily there is.</p>
<p>Last year I was at a talk by Reid Evans, <a href="https://codeopinion.com/getting-started-with-functional-programming-in-f/">Getting Started with Functional Programming in F#.</a>   He touched on it and I&#8217;ve been using an implementation in C# ever since.</p>
<h3>Option</h3>
<blockquote><p>an <b>option type</b> or <b>maybe type</b> is a <a title="Parametric polymorphism" href="https://en.wikipedia.org/wiki/Parametric_polymorphism">polymorphic type</a> that represents encapsulation of an optional value; e.g., it is used as the return type of functions which may or may not return a meaningful value when they are applied.</p></blockquote>
<p><strong>Optional Library</strong></p>
<p>For this example, I&#8217;m going to use the <a href="https://github.com/nlkl/Optional">Optional</a> package.  There are many similar type libraries available on NuGet, but this one is fairly feature rich and serves the purpose for my example.</p>
<h3>NullReferenceException</h3>
<p>So I&#8217;m going to walk through a trivial example of a ASP.NET Core application that is going to return some customer data.  The sample code below will throw a <code class="EnlighterJSRAW" data-enlighter-language="csharp">NullReferenceException</code> when the incoming <code class="EnlighterJSRAW" data-enlighter-language="csharp">customerId</code> is not found in our database.</p>
<div class="oembed-gist"><script src="https://gist.github.com/dcomartin/f33bd9b0e04572ba99c884bbd83d5539.js"></script><noscript>View the code on <a href="https://gist.github.com/dcomartin/f33bd9b0e04572ba99c884bbd83d5539">Gist</a>.</noscript></div>
<h3>Null Check</h3>
<p>Obvious answer is to wrap the return statement in an if statement to verify the customer returned from the <code class="EnlighterJSRAW" data-enlighter-language="csharp">_customerRepository</code> is not <code class="EnlighterJSRAW" data-enlighter-language="csharp">null</code>.  If it is, then return a <code class="EnlighterJSRAW" data-enlighter-language="csharp">404</code>.</p>
<div class="oembed-gist"><script src="https://gist.github.com/dcomartin/82d8456ad671697aa51abad381ba15e2.js"></script><noscript>View the code on <a href="https://gist.github.com/dcomartin/82d8456ad671697aa51abad381ba15e2">Gist</a>.</noscript></div>
<h3>Option</h3>
<p>Our <code class="EnlighterJSRAW" data-enlighter-language="csharp">CustomerRepository</code>, could&#8217;ve thrown a <code class="EnlighterJSRAW" data-enlighter-language="csharp">InvalidOperationException</code> or another type of exception if the customer didn&#8217;t exist.  But what if instead it returned an <code class="EnlighterJSRAW" data-enlighter-language="csharp">Option&lt;Customer&gt;</code> and never returned <code class="EnlighterJSRAW" data-enlighter-language="csharp">null</code>.</p>
<p>In the example below, our <code class="EnlighterJSRAW" data-enlighter-language="csharp">_customerRepository.GetOptionById(int)</code> now returns an <code class="EnlighterJSRAW" data-enlighter-language="csharp">Option&lt;Customer&gt;.</code> This now <strong>forces</strong> us to specify how to handle if there is a value, and if it is null.</p>
<div class="oembed-gist"><script src="https://gist.github.com/dcomartin/782ad05e27d613484eb4e1d2fe189c39.js"></script><noscript>View the code on <a href="https://gist.github.com/dcomartin/782ad05e27d613484eb4e1d2fe189c39">Gist</a>.</noscript></div>
<h3>Gateway</h3>
<p>Hopefully this a a simple example of the Option type and how it can be a gateway to removing null and <code class="EnlighterJSRAW" data-enlighter-language="csharp">NullReferenceException</code> from your code.  Take a deeper look at the <a href="https://github.com/nlkl/Optional">docs</a> for the Optional library as there are many other great examples.</p>
<p>Are you using an implementation of Option/Maybe?  Let me know in the comments or on Twitter.</p>
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BryanWilhite added a commit that referenced this issue Dec 31, 2019
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🔬 Songhay.Social.Shell.Tests.HtmlWebTests.ShouldLoad passes, #7
9eeb1b3
BryanWilhite added a commit that referenced this issue Dec 31, 2019
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📦 ⬆️ #7
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BryanWilhite added a commit that referenced this issue Dec 31, 2019
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🚜 ✨ #7 added HtmlWebExtensions
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BryanWilhite added a commit that referenced this issue Dec 31, 2019
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☔ added HtmlWebExtensionsTests, #7
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BryanWilhite added a commit that referenced this issue Dec 31, 2019
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☔ HtmlWebExtensionsTests pass, #7
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BryanWilhite added a commit that referenced this issue Dec 31, 2019
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🚜 ☔ mass rename, #7
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BryanWilhite commented Dec 31, 2019 •
edited

next moves:

  • verify that ExcelReaderFactory can distinguish Workbook pages
  • use the findings of ShouldReadTweetBook to read curated tweets into partitions and save as JSON
  • upload JSON to Azure Storage
  • determine whether Azure Logic Apps can connect to Azure Storage and read JSON (probably not)

BryanWilhite added a commit that referenced this issue Dec 31, 2019
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🔬 IExcelDataReader.Name identifies the current worksheet, #7
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BryanWilhite commented Jan 1, 2020 •
edited

~1000 URIs processed in 18mins:
image

⚠️ ran into this issue: BryanWilhite/SonghayCore#87

BryanWilhite added a commit that referenced this issue Jan 1, 2020
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🔬 PartitionSocialData_Test passes, #7
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https://docs.microsoft.com/en-us/azure/logic-apps/workflow-definition-language-functions-reference#all-functions---alphabetical-list

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BryanWilhite commented Jan 1, 2020 •
edited

the curation of YouTube links leads to almost nothing:

  {
    "errorType": "",
    "errorMessage": "",
    "hasLoadError": false,
    "isPublished": false,
    "location": "https://www.youtube.com/watch?v=Xb_0awoShR8",
    "metaTwitterImage": null,
    "metaTwitterHandle": null,
    "metaTwitterTitle": null,
    "metaTwitterDescription": null,
    "metaOgImage": null,
    "metaOgTitle": null,
    "metaOgDescription": null,
    "status": "YouTube\r\n\r\n\r\n\r\nhttps://www.youtube.com/watch?v=Xb_0awoShR8\r\n\r\n#rxa 👁⚙🌩",
    "title": "YouTube"
  }

i assume YouTube is using some form of Angular that is obscuring data scraping

this, by the way, is the new, more Azure-Logic-Apps-friendly shape of the JSON

https://www.jsonschema.net/

BryanWilhite added a commit that referenced this issue Jan 1, 2020
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🔬 #7
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BryanWilhite commented Jan 2, 2020 •
edited

Microsoft still has not recognized changes in the Twitter API?
image

this constraint alone nudges me toward an Azure Durable Functions approach 🙄

oops! 🤦‍♂
image
https://www.onmsft.com/news/twitters-new-280-character-tweets-already-showing-on-windows-10-mobile-pc

BryanWilhite added a commit that referenced this issue Jan 2, 2020
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❄️ #7
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🔬 #7
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BryanWilhite commented Jan 2, 2020 •
edited

this post exceeds 280 chars:

Node.js Forked Again Over Complaints of Unresponsive Leadership - The New Stack

The codebase for popular Node.js JavaScript runtime has been forked again  — the second time in less than three years — with a growing number of contributors charging that the Technical Steering Comm…

https://thenewstack.io/node-js-forked-complaints-repeated-harassment/

#rxa 👁⚙🌩

this tells me that link-shortening must be run before posting

update: the title and description lines are 283 characters

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BryanWilhite commented Jan 2, 2020 •
edited

the responsibilities of Azure Logic Apps:

selecting the first file from an Azure Files listing

image

with this: first(body('Filter_only_files')).Path

parsing JSON with @string()

by default JSON is stores in Azure Files as application/octet-stream; this will cause the Parse JSON Action to fail

through trial and error i see that i need to explicitly set this:

string(body('Get_file_content'))

image

which the current Logic Apps UX reduces to:
image

The UX visualization makes no distinction between string(body('Get_file_content')) and body('Get_file_content'); the only way to tell that string() is there is to Peek Code and look for @string:
image

@string(body('Get_file_content'))

moving the processed JSON file with Azure File actions

image

BryanWilhite added a commit that referenced this issue Jan 2, 2020
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🔬 #7
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BryanWilhite added a commit that referenced this issue Jan 2, 2020
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🔬 #7 added ShouldTruncateStatus
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BryanWilhite added a commit that referenced this issue Jan 3, 2020
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🔬 #7
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BryanWilhite added a commit that referenced this issue Jan 3, 2020
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📝 #7
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the “run after” settings for Copy file* actions should include failure:
image

this is based on the assumption (going forward) that failures in posting tweets will not be due to data format errors (expected errors include quota excess)

This was referenced Apr 4, 2021
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