Bump y18n from 3.2.1 to 3.2.2 in /intro/server

Bumps [y18n](https://github.com/yargs/y18n) from 3.2.1 to 3.2.2.
- [Release notes](https://github.com/yargs/y18n/releases)
- [Changelog](https://github.com/yargs/y18n/blob/master/CHANGELOG.md)
- [Commits](https://github.com/yargs/y18n/commits)

Signed-off-by: dependabot[bot] <support@github.com>

README.md

@@ -1,4 +1,4 @@
-<i>This workshop is licensed under a <a rel="license" href="http://creativecommons.org/licenses/by/4.0/">Creative Commons Attribution 4.0 International License</a>. The `server/` directories use [`moleculer-node-realworld-example`](https://github.com/gothinkster/moleculer-node-realworld-example-app), which has its own license. The JavaScript interop example uses [`localForage`](https://github.com/localForage/localForage), which is (c) 2013-2017 Mozilla, under the Apache License 2.0. The rest of the code is a variation on [`elm-spa-example`](https://github.com/rtfeldman/elm-spa-example/), an [MIT-licensed](https://github.com/rtfeldman/elm-spa-example/blob/master/LICENSE) implementation of the [`realworld`](https://github.com/gothinkster/realworld) front-end. Many thanks to the authors of these projects!</i>
+<i>This workshop, as well as the slides that go with it (linked below), are all licensed under a <a rel="license" href="http://creativecommons.org/licenses/by/4.0/">Creative Commons Attribution 4.0 International License</a>. The `server/` directories use [`moleculer-node-realworld-example`](https://github.com/gothinkster/moleculer-node-realworld-example-app), which has its own license. The JavaScript interop example uses [`localForage`](https://github.com/localForage/localForage), which is (c) 2013-2017 Mozilla, under the Apache License 2.0. The rest of the code is a variation on [`elm-spa-example`](https://github.com/rtfeldman/elm-spa-example/), an [MIT-licensed](https://github.com/rtfeldman/elm-spa-example/blob/master/LICENSE) implementation of the [`realworld`](https://github.com/gothinkster/realworld) front-end. Many thanks to the authors of these projects!</i>
 
 Getting Started
 ===============
@@ -14,7 +14,7 @@ Getting Started
 > **Note:** Make sure not to run this command with `sudo`! If it gives you an `EACCESS` error, apply [**this fix**](https://docs.npmjs.com/getting-started/fixing-npm-permissions#option-two-change-npms-default-directory) and then re-run the command (still without `sudo`).
 
 ```shell
-npm install -g elm-test@beta elm-format@rc
+npm install -g elm elm-test elm-format
 ```
 
 5. Clone this repository
@@ -27,3 +27,11 @@ cd elm-0.19-workshop
 ```
 
 6. Continue with either the [`intro`](https://github.com/rtfeldman/elm-0.19-workshop/blob/master/intro/README.md) or [`advanced`](https://github.com/rtfeldman/elm-0.19-workshop/blob/master/advanced/README.md) instructions, depending on which workshop you're doing!
+
+Video Course of this Workshop
+=============================
+
+I recorded full-length videos for [Frontend Masters](https://frontendmasters.com/), in which I teach both of these workshops start to finish:
+
+* [Introduction to Elm](https://frontendmasters.com/courses/intro-elm/) video course ([slides](https://docs.google.com/presentation/d/1LM_W2BRs_ItT-SPDe70C10cbwhGNHGQlJ1fVnAdnRIY/edit?usp=sharing)
+* [Advanced Elm](https://frontendmasters.com/courses/advanced-elm/) video course ([slides](https://docs.google.com/presentation/d/1aFZBXs9kzlZww2JN6iDmrYiQaxKlCAz6a5zpt882GHk/edit?usp=sharing))

TEACHING.md

@@ -15,7 +15,7 @@ some info about it that may be helpful in teaching this workshop.
 
 ## Slides
 
-The [slides](https://docs.google.com/presentation/d/1sNx5k3_fHwJcgm9QEY1LsMH_TyF5SnnOSDKb8HvFsEU/edit?usp=sharing)
+The [slides](https://docs.google.com/presentation/d/1LM_W2BRs_ItT-SPDe70C10cbwhGNHGQlJ1fVnAdnRIY/edit?usp=sharing)
 I use with the workshop include speaker notes. If you’ve seen me give this
 workshop before, you may notice that I’m not following these notes very closely.
 

advanced/README.md

@@ -43,7 +43,12 @@ If things aren’t working, the instructor will be happy to help!
 
 ## Links
 
-* [Elm in Action](https://www.manning.com/books/elm-in-action?a_aid=elm_in_action&a_bid=b15edc5c), a book by [Richard Feldman](https://twitter.com/rtfeldman), creator of this workshop
-* [Official Elm Guide](https://guide.elm-lang.org/) by [Evan Czaplicki](https://twitter.com/czaplic), creator of Elm
-* [Elm Slack](http://elmlang.herokuapp.com/) - amazingly helpful chat community. People in [the `#beginners` channel](https://elmlang.slack.com/messages/C192T0Q1E/) are happy to answer questions!
-* [Elm Discourse](https://discourse.elm-lang.org/) - for longer-form discussions.
+* [The solutions to these exercises](https://github.com/rtfeldman/elm-0.19-workshop/tree/solutions/advanced)
+* [Slides for the Frontend Masters workshop that goes with this repo](https://docs.google.com/presentation/d/1aFZBXs9kzlZww2JN6iDmrYiQaxKlCAz6a5zpt882GHk/edit?usp=sharing)
+* [Advanced Elm Video Course](https://frontendmasters.com/courses/advanced-elm/) that goes with this repo
+* [The Life of a File](https://www.youtube.com/watch?v=XpDsk374LDE) - Evan Czaplicki
+* [The Importance of Ports](https://www.youtube.com/watch?v=P3pL85n9_5s) - Murphy Randle
+* [Working with Maybe](https://www.youtube.com/watch?v=43eM4kNbb6c) - Joël Quenneville
+* [Making Impossible States Impossible](https://www.youtube.com/watch?v=IcgmSRJHu_8) - Richard Feldman
+* [Scaling Elm Apps](https://www.youtube.com/watch?v=DoA4Txr4GUs) - Richard Feldman
+* [Make Data Structures](https://www.youtube.com/watch?v=x1FU3e0sT1I) - Richard Feldman

advanced/part1/elm.json

@@ -3,10 +3,10 @@
     "source-directories": [
         "src"
     ],
-    "elm-version": "0.19.0",
+    "elm-version": "0.19.1",
     "dependencies": {
         "direct": {
-            "NoRedInk/json-decode-pipeline": "1.0.0",
+            "NoRedInk/elm-json-decode-pipeline": "1.0.0",
             "elm/browser": "1.0.0",
             "elm/core": "1.0.0",
             "elm/html": "1.0.0",
@@ -16,7 +16,7 @@
             "elm/url": "1.0.0",
             "elm-explorations/markdown": "1.0.0",
             "lukewestby/elm-http-builder": "6.0.0",
-            "rtfeldman/elm-iso8601": "1.0.1"
+            "rtfeldman/elm-iso8601-date-strings": "1.0.0"
         },
         "indirect": {
             "elm/parser": "1.0.0",

advanced/part1/src/Viewer/Cred.elm

@@ -12,13 +12,14 @@ import Username exposing (Username)
 
 
 type alias Cred =
-    -- 👉 TODO make Cred an opaque type, then fix the resulting compiler errors.
-    -- Afterwards, it should no longer be possible for any other module to access
-    -- this `token` vale directly!
-    --
-    -- 💡 HINT: Other modules still depend on being able to access the
-    -- `username` value. Expand this module's API to expose a new way for them
-    -- to access the `username` without also giving them access to `token`.
+    {- 👉 TODO: Make Cred an opaque type, then fix the resulting compiler errors.
+       Afterwards, it should no longer be possible for any other module to access
+       this `token` value directly!
+
+       💡 HINT: Other modules still depend on being able to access the
+       `username` value. Expand this module's API to expose a new way for them
+       to access the `username` without also giving them access to `token`.
+    -}
     { username : Username
     , token : String
     }

advanced/part2/elm.json

@@ -3,10 +3,10 @@
     "source-directories": [
         "src"
     ],
-    "elm-version": "0.19.0",
+    "elm-version": "0.19.1",
     "dependencies": {
         "direct": {
-            "NoRedInk/json-decode-pipeline": "1.0.0",
+            "NoRedInk/elm-json-decode-pipeline": "1.0.0",
             "elm/browser": "1.0.0",
             "elm/core": "1.0.0",
             "elm/html": "1.0.0",
@@ -16,7 +16,7 @@
             "elm/url": "1.0.0",
             "elm-explorations/markdown": "1.0.0",
             "lukewestby/elm-http-builder": "6.0.0",
-            "rtfeldman/elm-iso8601": "1.0.1"
+            "rtfeldman/elm-iso8601-date-strings": "1.0.0"
         },
         "indirect": {
             "elm/parser": "1.0.0",

advanced/part3/elm.json

@@ -3,10 +3,10 @@
     "source-directories": [
         "src"
     ],
-    "elm-version": "0.19.0",
+    "elm-version": "0.19.1",
     "dependencies": {
         "direct": {
-            "NoRedInk/json-decode-pipeline": "1.0.0",
+            "NoRedInk/elm-json-decode-pipeline": "1.0.0",
             "elm/browser": "1.0.0",
             "elm/core": "1.0.0",
             "elm/html": "1.0.0",
@@ -16,7 +16,7 @@
             "elm/url": "1.0.0",
             "elm-explorations/markdown": "1.0.0",
             "lukewestby/elm-http-builder": "6.0.0",
-            "rtfeldman/elm-iso8601": "1.0.1"
+            "rtfeldman/elm-iso8601-date-strings": "1.0.0"
         },
         "indirect": {
             "elm/parser": "1.0.0",

advanced/part3/src/Page/Article.elm

@@ -77,8 +77,8 @@ init session slug =
 
            Relevant docs:
 
-           https://alpha.elm-lang.org/packages/elm/core/latest/Task#attempt
-           https://alpha.elm-lang.org/packages/elm/core/latest/Task#perform
+           https://package.elm-lang.org/packages/elm/core/latest/Task#attempt
+           https://package.elm-lang.org/packages/elm/core/latest/Task#perform
         -}
         [ Article.fetch maybeCred slug
             |> Http.toTask

advanced/part4/elm.json

@@ -3,10 +3,10 @@
     "source-directories": [
         "src"
     ],
-    "elm-version": "0.19.0",
+    "elm-version": "0.19.1",
     "dependencies": {
         "direct": {
-            "NoRedInk/json-decode-pipeline": "1.0.0",
+            "NoRedInk/elm-json-decode-pipeline": "1.0.0",
             "elm/browser": "1.0.0",
             "elm/core": "1.0.0",
             "elm/html": "1.0.0",
@@ -16,7 +16,7 @@
             "elm/url": "1.0.0",
             "elm-explorations/markdown": "1.0.0",
             "lukewestby/elm-http-builder": "6.0.0",
-            "rtfeldman/elm-iso8601": "1.0.1"
+            "rtfeldman/elm-iso8601-date-strings": "1.0.0"
         },
         "indirect": {
             "elm/parser": "1.0.0",

advanced/part5/elm-package.json

@@ -1,15 +0,0 @@
-{
-    "version": "1.0.0",
-    "summary": "helpful summary of your project, less than 80 characters",
-    "repository": "https://github.com/user/project.git",
-    "license": "BSD3",
-    "source-directories": [
-        "."
-    ],
-    "exposed-modules": [],
-    "dependencies": {
-        "elm-lang/core": "5.1.1 <= v < 6.0.0",
-        "elm-lang/html": "2.0.0 <= v < 3.0.0"
-    },
-    "elm-version": "0.18.0 <= v < 0.19.0"
-}

advanced/part5/elm.json

@@ -3,10 +3,10 @@
     "source-directories": [
         "src"
     ],
-    "elm-version": "0.19.0",
+    "elm-version": "0.19.1",
     "dependencies": {
         "direct": {
-            "NoRedInk/json-decode-pipeline": "1.0.0",
+            "NoRedInk/elm-json-decode-pipeline": "1.0.0",
             "elm/browser": "1.0.0",
             "elm/core": "1.0.0",
             "elm/html": "1.0.0",
@@ -16,7 +16,7 @@
             "elm/url": "1.0.0",
             "elm-explorations/markdown": "1.0.0",
             "lukewestby/elm-http-builder": "6.0.0",
-            "rtfeldman/elm-iso8601": "1.0.1"
+            "rtfeldman/elm-iso8601-date-strings": "1.0.0"
         },
         "indirect": {
             "elm/parser": "1.0.0",

advanced/part6/elm.json

@@ -3,10 +3,10 @@
     "source-directories": [
         "src"
     ],
-    "elm-version": "0.19.0",
+    "elm-version": "0.19.1",
     "dependencies": {
         "direct": {
-            "NoRedInk/json-decode-pipeline": "1.0.0",
+            "NoRedInk/elm-json-decode-pipeline": "1.0.0",
             "elm/browser": "1.0.0",
             "elm/core": "1.0.0",
             "elm/html": "1.0.0",
@@ -16,7 +16,7 @@
             "elm/url": "1.0.0",
             "elm-explorations/markdown": "1.0.0",
             "lukewestby/elm-http-builder": "6.0.0",
-            "rtfeldman/elm-iso8601": "1.0.1"
+            "rtfeldman/elm-iso8601-date-strings": "1.0.0"
         },
         "indirect": {
             "elm/parser": "1.0.0",

advanced/part7/elm.json

@@ -3,10 +3,10 @@
     "source-directories": [
         "src"
     ],
-    "elm-version": "0.19.0",
+    "elm-version": "0.19.1",
     "dependencies": {
         "direct": {
-            "NoRedInk/json-decode-pipeline": "1.0.0",
+            "NoRedInk/elm-json-decode-pipeline": "1.0.0",
             "elm/browser": "1.0.0",
             "elm/core": "1.0.0",
             "elm/html": "1.0.0",
@@ -16,7 +16,7 @@
             "elm/url": "1.0.0",
             "elm-explorations/markdown": "1.0.0",
             "lukewestby/elm-http-builder": "6.0.0",
-            "rtfeldman/elm-iso8601": "1.0.1"
+            "rtfeldman/elm-iso8601-date-strings": "1.0.0"
         },
         "indirect": {
             "elm/parser": "1.0.0",

advanced/part8/elm-package.json

@@ -1,15 +0,0 @@
-{
-    "version": "1.0.0",
-    "summary": "helpful summary of your project, less than 80 characters",
-    "repository": "https://github.com/user/project.git",
-    "license": "BSD3",
-    "source-directories": [
-        "."
-    ],
-    "exposed-modules": [],
-    "dependencies": {
-        "elm-lang/core": "5.1.1 <= v < 6.0.0",
-        "elm-lang/html": "2.0.0 <= v < 3.0.0"
-    },
-    "elm-version": "0.18.0 <= v < 0.19.0"
-}

advanced/part8/elm.json

@@ -3,10 +3,10 @@
     "source-directories": [
         "src"
     ],
-    "elm-version": "0.19.0",
+    "elm-version": "0.19.1",
     "dependencies": {
         "direct": {
-            "NoRedInk/json-decode-pipeline": "1.0.0",
+            "NoRedInk/elm-json-decode-pipeline": "1.0.0",
             "elm/browser": "1.0.0",
             "elm/core": "1.0.0",
             "elm/html": "1.0.0",
@@ -16,7 +16,7 @@
             "elm/url": "1.0.0",
             "elm-explorations/markdown": "1.0.0",
             "lukewestby/elm-http-builder": "6.0.0",
-            "rtfeldman/elm-iso8601": "1.0.1"
+            "rtfeldman/elm-iso8601-date-strings": "1.0.0"
         },
         "indirect": {
             "elm/parser": "1.0.0",

advanced/server/elm.json

@@ -3,10 +3,10 @@
     "source-directories": [
         "src"
     ],
-    "elm-version": "0.19.0",
+    "elm-version": "0.19.1",
     "dependencies": {
         "direct": {
-            "NoRedInk/json-decode-pipeline": "1.0.0",
+            "NoRedInk/elm-json-decode-pipeline": "1.0.0",
             "elm/browser": "1.0.0",
             "elm/core": "1.0.0",
             "elm/html": "1.0.0",
@@ -16,7 +16,7 @@
             "elm/url": "1.0.0",
             "elm-explorations/markdown": "1.0.0",
             "lukewestby/elm-http-builder": "6.0.0",
-            "rtfeldman/elm-iso8601": "1.0.1",
+            "rtfeldman/elm-iso8601-date-strings": "1.0.0",
             "rtfeldman/elm-validate": "4.0.0"
         },
         "indirect": {

intro/README.md

@@ -1,7 +1,7 @@
 Introduction to Elm Workshop
 ============================
 
-If you haven't already, follow the [Getting Started instructions](https://github.com/rtfeldman/elm-0.19-workshop/blob/master/intro/README.md
+If you haven't already, follow the [Getting Started instructions](https://github.com/rtfeldman/elm-0.19-workshop#getting-started
 ) at the root of this repository, then continue here!
 
 ## Start the server
@@ -24,7 +24,7 @@ of the workshop, so **don't close it** until the workshop is over!
 
 Leave the existing terminal running, and open a **second** terminal.
 
-In the new termnal, `cd` into the `elm-0.19-workshop/intro/server/` directory again.
+In the new terminal, `cd` into the `elm-0.19-workshop/intro/server/` directory again.
 
 Then run this to build the Elm code for the first time:
 
@@ -43,6 +43,9 @@ If things aren’t working, the instructor will be happy to help!
 
 ## Links
 
+* [The solutions to these exercises](https://github.com/rtfeldman/elm-0.19-workshop/tree/solutions/intro)
+* [Slides for the Frontend Masters video course that goes with this repo](https://docs.google.com/presentation/d/1LM_W2BRs_ItT-SPDe70C10cbwhGNHGQlJ1fVnAdnRIY/edit?usp=sharing)
+* [Introduction to Elm Video Course](https://frontendmasters.com/courses/intro-elm/) that goes along with this repo.
 * [Elm in Action](https://www.manning.com/books/elm-in-action?a_aid=elm_in_action&a_bid=b15edc5c), a book by [Richard Feldman](https://twitter.com/rtfeldman), creator of this workshop
 * [Official Elm Guide](https://guide.elm-lang.org/) by [Evan Czaplicki](https://twitter.com/czaplic), creator of Elm
 * [Elm Slack](http://elmlang.herokuapp.com/) - amazingly helpful chat community. People in [the `#beginners` channel](https://elmlang.slack.com/messages/C192T0Q1E/) are happy to answer questions!

intro/part1/Main.elm

@@ -17,7 +17,7 @@ banner =
                </div>
           </div>
 
-       💡 HINT 1: the <div class="row"> above is an element with 2 child nodes.
+       💡 HINT 1: the <div class="container"> above is an element with 2 child nodes.
 
        💡 HINT 2: the <div class="feed-toggle"> below is an element with text.
     -}

intro/part1/elm.json

@@ -3,7 +3,7 @@
     "source-directories": [
         "."
     ],
-    "elm-version": "0.19.0",
+    "elm-version": "0.19.1",
     "dependencies": {
         "direct": {
             "elm/core": "1.0.0",

intro/part2/elm.json

@@ -3,7 +3,7 @@
     "source-directories": [
         "src"
     ],
-    "elm-version": "0.19.0",
+    "elm-version": "0.19.1",
     "dependencies": {
         "direct": {
             "elm/core": "1.0.0",

intro/part3/elm.json

@@ -3,7 +3,7 @@
     "source-directories": [
         "src"
     ],
-    "elm-version": "0.19.0",
+    "elm-version": "0.19.1",
     "dependencies": {
         "direct": {
             "elm/core": "1.0.0",
@@ -19,4 +19,4 @@
         "direct": {},
         "indirect": {}
     }
-}
+}

intro/part3/src/Main.elm

@@ -1,5 +1,8 @@
 module Main exposing (main)
 
+-- NOTE: Make sure to follow the instructions in the README for part3
+-- to install the elm/browser package before running elm make!
+--
 -- FYI: 👇 You can see our new `Article` module in `src/Article.elm`
 
 import Article

intro/part4/elm-package.json

@@ -1,15 +0,0 @@
-{
-    "version": "1.0.0",
-    "summary": "helpful summary of your project, less than 80 characters",
-    "repository": "https://github.com/user/project.git",
-    "license": "BSD3",
-    "source-directories": [
-        "."
-    ],
-    "exposed-modules": [],
-    "dependencies": {
-        "elm-lang/core": "5.1.1 <= v < 6.0.0",
-        "elm-lang/html": "2.0.0 <= v < 3.0.0"
-    },
-    "elm-version": "0.18.0 <= v < 0.19.0"
-}

intro/part4/elm.json

@@ -3,7 +3,7 @@
     "source-directories": [
         "src"
     ],
-    "elm-version": "0.19.0",
+    "elm-version": "0.19.1",
     "dependencies": {
         "direct": {
             "elm/browser": "1.0.0",
@@ -21,4 +21,4 @@
         "direct": {},
         "indirect": {}
     }
-}
+}

intro/part4/src/Main.elm

@@ -93,7 +93,7 @@ view model =
         ]
 
 
-{-| 👉 TODO: Replace this comment with a type annotation for `view`
+{-| 👉 TODO: Replace this comment with a type annotation for `viewArticle`
 -}
 viewArticle article =
     div [ class "article-preview" ]

intro/part5/elm.json

@@ -3,10 +3,10 @@
     "source-directories": [
         "src"
     ],
-    "elm-version": "0.19.0",
+    "elm-version": "0.19.1",
     "dependencies": {
         "direct": {
-            "NoRedInk/json-decode-pipeline": "1.0.0",
+            "NoRedInk/elm-json-decode-pipeline": "1.0.0",
             "elm/browser": "1.0.0",
             "elm/core": "1.0.0",
             "elm/html": "1.0.0",
@@ -16,7 +16,7 @@
             "elm/url": "1.0.0",
             "elm-explorations/markdown": "1.0.0",
             "lukewestby/elm-http-builder": "6.0.0",
-            "rtfeldman/elm-iso8601": "1.0.1"
+            "rtfeldman/elm-iso8601-date-strings": "1.0.0"
         },
         "indirect": {
             "elm/parser": "1.0.0",

intro/part6/elm.json

@@ -3,10 +3,10 @@
     "source-directories": [
         "src"
     ],
-    "elm-version": "0.19.0",
+    "elm-version": "0.19.1",
     "dependencies": {
         "direct": {
-            "NoRedInk/json-decode-pipeline": "1.0.0",
+            "NoRedInk/elm-json-decode-pipeline": "1.0.0",
             "elm/browser": "1.0.0",
             "elm/core": "1.0.0",
             "elm/html": "1.0.0",
@@ -16,7 +16,7 @@
             "elm/url": "1.0.0",
             "elm-explorations/markdown": "1.0.0",
             "lukewestby/elm-http-builder": "6.0.0",
-            "rtfeldman/elm-iso8601": "1.0.1"
+            "rtfeldman/elm-iso8601-date-strings": "1.0.0"
         },
         "indirect": {
             "elm/parser": "1.0.0",

intro/part6/src/Page/Article/Editor.elm

@@ -566,7 +566,7 @@ toTagList tagString =
        will result in an error! If it has been fixed, saving will work and the
        tags will be accepted.
 
-       💡 HINT: Here's how to remove all the "foo" strings from a list of strings:
+       💡 HINT: Here's how to keep only the "foo" strings in a list of strings:
 
        List.filter (\str -> str == "foo") listOfStrings
     -}

intro/part7/elm.json

@@ -3,10 +3,10 @@
     "source-directories": [
         "src"
     ],
-    "elm-version": "0.19.0",
+    "elm-version": "0.19.1",
     "dependencies": {
         "direct": {
-            "NoRedInk/json-decode-pipeline": "1.0.0",
+            "NoRedInk/elm-json-decode-pipeline": "1.0.0",
             "elm/browser": "1.0.0",
             "elm/core": "1.0.0",
             "elm/html": "1.0.0",
@@ -16,7 +16,7 @@
             "elm/url": "1.0.0",
             "elm-explorations/markdown": "1.0.0",
             "lukewestby/elm-http-builder": "6.0.0",
-            "rtfeldman/elm-iso8601": "1.0.1"
+            "rtfeldman/elm-iso8601-date-strings": "1.0.0"
         },
         "indirect": {
             "elm/parser": "1.0.0",

intro/part8/README.md

@@ -12,6 +12,6 @@ Then open `http://localhost:3000` in your browser.
 
 ## Exercise
 
-We need to make login work. Currently it doesn't actually send a HTTP request to the server.
+We need to make signup work again. Currently it doesn't actually send a HTTP request to the server.
 
-We'll fix this by editing `src/Page/Login.elm` and resolving the TODOs there.
+We'll fix this by editing `src/Page/Register.elm` and resolving the TODOs there.

intro/part8/elm.json

@@ -3,10 +3,10 @@
     "source-directories": [
         "src"
     ],
-    "elm-version": "0.19.0",
+    "elm-version": "0.19.1",
     "dependencies": {
         "direct": {
-            "NoRedInk/json-decode-pipeline": "1.0.0",
+            "NoRedInk/elm-json-decode-pipeline": "1.0.0",
             "elm/browser": "1.0.0",
             "elm/core": "1.0.0",
             "elm/html": "1.0.0",
@@ -16,7 +16,7 @@
             "elm/url": "1.0.0",
             "elm-explorations/markdown": "1.0.0",
             "lukewestby/elm-http-builder": "6.0.0",
-            "rtfeldman/elm-iso8601": "1.0.1"
+            "rtfeldman/elm-iso8601-date-strings": "1.0.0"
         },
         "indirect": {
             "elm/parser": "1.0.0",

intro/part8/src/Page/Register.elm

@@ -168,7 +168,7 @@ update msg model =
                 -}
                 request : Http.Request Viewer
                 request =
-                    Debug.todo "Call Http.post to represent a POST to /api/users/login"
+                    Debug.todo "Call Http.post to represent a POST to /api/users"
 
                 {- 👉 TODO: Use Http.send to turn the request we just defined
                    into a Cmd for `update` to execute.

intro/part9/README.md

@@ -1,8 +1,8 @@
-# Part 8
+# Part 9
 
 Once again, we'll be building `src/Main.elm`, but editing a different file.
 
-To build everything, `cd` into the `part8/` directory and run8
+To build everything, `cd` into the `part9/` directory and run:
 
 ```shell
 elm make src/Main.elm --output ../server/public/elm.js

intro/part9/elm.json

@@ -3,10 +3,10 @@
     "source-directories": [
         "src"
     ],
-    "elm-version": "0.19.0",
+    "elm-version": "0.19.1",
     "dependencies": {
         "direct": {
-            "NoRedInk/json-decode-pipeline": "1.0.0",
+            "NoRedInk/elm-json-decode-pipeline": "1.0.0",
             "elm/browser": "1.0.0",
             "elm/core": "1.0.0",
             "elm/html": "1.0.0",
@@ -16,7 +16,7 @@
             "elm/url": "1.0.0",
             "elm-explorations/markdown": "1.0.0",
             "lukewestby/elm-http-builder": "6.0.0",
-            "rtfeldman/elm-iso8601": "1.0.1"
+            "rtfeldman/elm-iso8601-date-strings": "1.0.0"
         },
         "indirect": {
             "elm/parser": "1.0.0",

intro/part9/src/Article.elm

@@ -40,7 +40,7 @@ import Html.Attributes exposing (class)
 import Html.Events exposing (stopPropagationOn)
 import Http
 import HttpBuilder exposing (RequestBuilder, withBody, withExpect, withQueryParams)
-import Json.Decode as Decode exposing (Decoder, bool, int, list, string)
+import Json.Decode as Decode exposing (Decoder)
 import Json.Decode.Pipeline exposing (custom, hardcoded, required)
 import Json.Encode as Encode
 import Markdown
@@ -83,6 +83,47 @@ type Article a
     = Article Internals a
 
 
+{-| Metadata about the article - its title, description, and so on.
+
+Importantly, this module's public API exposes a way to read this metadata, but
+not to alter it. This is read-only information!
+
+If we find ourselves using any particular piece of metadata often,
+for example `title`, we could expose a convenience function like this:
+
+Article.title : Article a -> String
+
+If you like, it's totally reasonable to expose a function like that for every one
+of these fields!
+
+(Okay, to be completely honest, exposing one function per field is how I prefer
+to do it, and that's how I originally wrote this module. However, I'm aware that
+this code base has become a common reference point for beginners, and I think it
+is _extremely important_ that slapping some "getters and setters" on a record
+does not become a habit for anyone who is getting started with Elm. The whole
+point of making the Article type opaque is to create guarantees through
+_selectively choosing boundaries_ around it. If you aren't selective about
+where those boundaries are, and instead expose a "getter and setter" for every
+field in the record, the result is an API with no more guarantees than if you'd
+exposed the entire record directly! It is so important to me that beginners not
+fall into the terrible "getters and setters" trap that I've exposed this
+Metadata record instead of exposing a single function for each of its fields,
+as I did originally. This record is not a bad way to do it, by any means,
+but if this seems at odds with <https://youtu.be/x1FU3e0sT1I> - now you know why!
+See commit c2640ae3abd60262cdaafe6adee3f41d84cd85c3 for how it looked before.
+)
+
+-}
+type alias Metadata =
+    { description : String
+    , title : String
+    , tags : List String
+    , createdAt : Time.Posix
+    , favorited : Bool
+    , favoritesCount : Int
+    }
+
+
 type alias Internals =
     { slug : Slug
     , author : Author
@@ -170,39 +211,15 @@ internalsDecoder maybeCred =
         |> custom metadataDecoder
 
 
-type alias Metadata =
-    { description : String
-    , title : String
-    , tags : List String
-    , favorited : Bool
-    , favoritesCount : Int
-    , createdAt : Time.Posix
-    }
-
-
 metadataDecoder : Decoder Metadata
 metadataDecoder =
-    {- 👉 TODO: replace the calls to `hardcoded` with calls to `required`
-          in order to decode these fields:
-
-       --- "description" -------> description : String
-       --- "title" -------------> title : String
-       --- "tagList" -----------> tags : List String
-       --- "favorited" ---------> favorited : Bool
-       --- "favoritesCount" ----> favoritesCount : Int
-
-       Once this is done, the articles in the feed should look normal again.
-
-       💡 HINT: Order matters! These must be decoded in the same order
-       as the order of the fields in `type alias Metadata` above. ☝️
-    -}
     Decode.succeed Metadata
-        |> hardcoded "(needs decoding!)"
-        |> hardcoded "(needs decoding!)"
-        |> hardcoded []
-        |> hardcoded False
-        |> hardcoded 0
+        |> required "description" (Decode.map (Maybe.withDefault "") (Decode.nullable Decode.string))
+        |> required "title" Decode.string
+        |> required "tagList" (Decode.list Decode.string)
         |> required "createdAt" Timestamp.iso8601Decoder
+        |> required "favorited" Decode.bool
+        |> required "favoritesCount" Decode.int
 
 
 

intro/server/elm.json

@@ -3,10 +3,10 @@
     "source-directories": [
         "src"
     ],
-    "elm-version": "0.19.0",
+    "elm-version": "0.19.1",
     "dependencies": {
         "direct": {
-            "NoRedInk/json-decode-pipeline": "1.0.0",
+            "NoRedInk/elm-json-decode-pipeline": "1.0.0",
             "elm/browser": "1.0.0",
             "elm/core": "1.0.0",
             "elm/html": "1.0.0",
@@ -16,7 +16,7 @@
             "elm/url": "1.0.0",
             "elm-explorations/markdown": "1.0.0",
             "lukewestby/elm-http-builder": "6.0.0",
-            "rtfeldman/elm-iso8601": "1.0.1",
+            "rtfeldman/elm-iso8601-date-strings": "1.0.0",
             "rtfeldman/elm-validate": "4.0.0"
         },
         "indirect": {