Angular - Tour of heroes pt6 on HTTP

Very often, the statements get long as multiple function calls are chained after eachother. I’m wondering if you work on a bigger project like DSpace, where other people write the code that you need to continue on, what this does for readability. For example:

/** POST: add a new hero to the server */
addHero (hero: Hero): Observable<Hero> {
  return this.http.post<Hero>(this.heroesUrl, hero, httpOptions).pipe(
    tap((hero: Hero) => this.log(`added hero w/ id=${hero.id}`)),
    catchError(this.handleError<Hero>('addHero'))
  );
}

Following seems important to remember in RxJs & working with observables: If you neglect to subscribe(), the service will not send the delete request to the server! As a rule, an Observable does nothing until something subscribes!

Another convention: The $ is a convention that indicates heroes$ is an Observable, not an array.

The last piece of the Angular Tour of Heroes puzzle is now in place: the search feature that uses the RxJs Async pipeline. Again amazed at the simplicity of the resulting code, but clear that there’s a lot going on under the hood that I want to get more familiar with.

Early start - late end

Did 20 minutes in the morning and finished with 40 minutes right before going to bed.

Day 40 Plan

I’ll start with ng-book 2. Not sure if I’ll go into every single tutorial in there, but hope that this will give me a little bit more depth.

Future days - DSpace 7 Angular

• Finish angular.io tutorials
• Translate of the standard messages keys in Dutch, to learn how i18n in Angular works
• Build a feature where users can customize their own language tags, straight from the UI, by switching on some kind of “translator” mode, to do these changes at runtime
• UI for exporting their customized messages
• UI for enabling/disabling particular languages

Future days - Analyzer.atmire.com work

• Change String based implementation of error message handling with types and objects, according to Antoine Snyers recent Atmire DevTalk.
• Change string based implementation of the different browse styles to an object, according to Antoine Snyers recent Atmire DevTalk
• Optimize my hideous methods for getItemcount and getRepoCount.
• Re-test the check if we return the right repository to a user who tries to add a new one
• Updating a repository: touch/change the base URL or not?
• Batch ingest: switch to newer add repository methods.
• WCAG testing against the start page to ensure it’s accessible for people who rely on assistive tools.
• Transition from plain CSS to SASS to make it prettier and learn about SASS at the same time
• Instead of the 5 minute cron job, look into a gitlab webhook that executes the update script on prod whever something is committed to master.

Future Days - Productivity

• Get my IntelliJ IDEA Shortcuts for comments in order

Future days - Jekyll http://bram-atmire.github.io/ site

• Make it prettier

Future Days - Atmire.com work

Investigate and work on search engine optimization (SEO) for the main atmire.com website.

Future Days - Learning just for learning

• CSS: Go through the fabulous CSS Diner

Sustainability - Raising the stakes - Looking for sponsors (unchanged)

I have raised the stakes by

• giving €100 to Charity:Water for every day I miss.
• asking people to sponsor me and to give an amount to a charity for each day I successfully complete

This way, every day would be a win. These are the rules that I’ll apply:

1. I can anticipate or fix a lost day by doing an hour extra the day before, or an hour extra the day after. In theory this means I can maximally compensate a streak of 2 missed days.
2. Goal is to have a steady frequency, so I can’t just do 8h on a sunday to get myself off the hook for the next 7 days.
3. Sponsor commitments are fully voluntarily: any sponsor can back out at any time.
4. My commitment is fully voluntarily: if I want to change the rules or back out, I can at any time.

This month, these are already days that will be very tough:

• Sep 27,28 - Supernova conference Antwerp

So that’s already a lot of exposure to potentially missed days.

I will raise the stakes this way and gather money for Charity:Water. Let me know if you want to sponsor me and for how much per completed day in September. September 1st is the first successfully completed day.

September tracking

Will only log the failed days here. No failed days so far.

Thanks to the following sponsors!

1. Jan & Hilde: €2 per successful day (Yes, these are my parents)