×
Copy
Open
Link
Embed
Share
Beginning
This slide
Copy link URL
Copy link URL
Copy iframe embed code
Copy iframe embed code
Copy javascript embed code
Copy javascript embed code
Share
Tweet
Share
Tweet
Slide 1
Slide 1 text
No content
Slide 2
Slide 2 text
RXJS'S SECRET WEAPON Mike Ryan | Sam Julien
Slide 3
Slide 3 text
@mikeryandev @samjulien COMPLEX UI @mikeryandev @samjulien
Slide 4
Slide 4 text
@mikeryandev @samjulien HIGHLY INTERACTIVE UI @mikeryandev @samjulien
Slide 5
Slide 5 text
@mikeryandev @samjulien @mikeryandev @samjulien
Slide 6
Slide 6 text
@mikeryandev @samjulien @mikeryandev @samjulien
Slide 7
Slide 7 text
@mikeryandev @samjulien @mikeryandev @samjulien
Slide 8
Slide 8 text
@mikeryandev @samjulien @mikeryandev @samjulien
Slide 9
Slide 9 text
@mikeryandev @samjulien @mikeryandev @samjulien
Slide 10
Slide 10 text
@mikeryandev @samjulien MIKE RYAN @mikeryandev
Slide 11
Slide 11 text
@mikeryandev @samjulien SOFTWARE ARCHITECT AT SYNAPSE MIKE RYAN @mikeryandev
Slide 12
Slide 12 text
@mikeryandev @samjulien SOFTWARE ARCHITECT AT SYNAPSE GOOGLE DEVELOPER EXPERT MIKE RYAN @mikeryandev
Slide 13
Slide 13 text
@mikeryandev @samjulien SOFTWARE ARCHITECT AT SYNAPSE GOOGLE DEVELOPER EXPERT NGRX CORE TEAM MIKE RYAN @mikeryandev
Slide 14
Slide 14 text
@mikeryandev @samjulien SAM JULIEN @samjulien
Slide 15
Slide 15 text
@mikeryandev @samjulien SAM JULIEN @samjulien DEVREL AT AUTH0
Slide 16
Slide 16 text
@mikeryandev @samjulien SAM JULIEN @samjulien DEVREL AT AUTH0 GDE & ANGULAR COLLABORATOR
Slide 17
Slide 17 text
@mikeryandev @samjulien SAM JULIEN @samjulien DEVREL AT AUTH0 GDE & ANGULAR COLLABORATOR SAMJULIEN.COM
Slide 18
Slide 18 text
@mikeryandev @samjulien WARNING THIS IS ADVANCED @mikeryandev @samjulien
Slide 19
Slide 19 text
@mikeryandev @samjulien
Slide 20
Slide 20 text
@mikeryandev @samjulien
Slide 21
Slide 21 text
@mikeryandev @samjulien
Slide 22
Slide 22 text
@mikeryandev @samjulien
Slide 23
Slide 23 text
@mikeryandev @samjulien @mikeryandev @samjulien
Slide 24
Slide 24 text
@mikeryandev @samjulien @mikeryandev @samjulien
Slide 25
Slide 25 text
@mikeryandev @samjulien @mikeryandev @samjulien
Slide 26
Slide 26 text
@mikeryandev @samjulien DISPATCHER PATTERN
Slide 27
Slide 27 text
@mikeryandev @samjulien UI COMPONENTS
Slide 28
Slide 28 text
@mikeryandev @samjulien UI COMPONENTS ACTIONS
Slide 29
Slide 29 text
@mikeryandev @samjulien UI COMPONENTS DISPATCHER ACTIONS
Slide 30
Slide 30 text
@mikeryandev @samjulien UI COMPONENTS DISPATCHER ACTIONS API
Slide 31
Slide 31 text
@mikeryandev @samjulien UI COMPONENTS DISPATCHER ACTIONS API
Slide 32
Slide 32 text
@mikeryandev @samjulien
Slide 33
Slide 33 text
@mikeryandev @samjulien const dispatcher = new Subject(); @mikeryandev @samjulien
Slide 34
Slide 34 text
@mikeryandev @samjulien const movie1$: Observable = fromEvent(button1, ‘click'); movie1$.subscribe(() => dispatcher.next({ movieId: 1 })); @mikeryandev @samjulien
Slide 35
Slide 35 text
@mikeryandev @samjulien const movie1$: Observable = fromEvent(button1, ‘click'); movie1$.subscribe(() => dispatcher.next({ movieId: 1 })); @mikeryandev @samjulien
Slide 36
Slide 36 text
@mikeryandev @samjulien const movie1$: Observable = fromEvent(button1, ‘click'); movie1$.subscribe(() => dispatcher.next({ movieId: 1 })); @mikeryandev @samjulien
Slide 37
Slide 37 text
@mikeryandev @samjulien HOW DO WE MAP THE BUTTON CLICKS TO THE ENDPOINT CALLS? @mikeryandev @samjulien
Slide 38
Slide 38 text
@mikeryandev @samjulien const actions$ = dispatcher.asObservable().pipe( tap(({ movieId }) => setButtonEmoji(movieId)), ???(movie => toggleStatus(movie.movieId)) ); @mikeryandev @samjulien
Slide 39
Slide 39 text
@mikeryandev @samjulien const actions$ = dispatcher.asObservable().pipe( tap(({ movieId }) => setButtonEmoji(movieId)), ???(movie => toggleStatus(movie.movieId)) ); @mikeryandev @samjulien
Slide 40
Slide 40 text
@mikeryandev @samjulien const actions$ = dispatcher.asObservable().pipe( tap(({ movieId }) => setButtonEmoji(movieId)), ???(movie => toggleStatus(movie.movieId)) ); @mikeryandev @samjulien
Slide 41
Slide 41 text
@mikeryandev @samjulien const actions$ = dispatcher.asObservable().pipe( tap(({ movieId }) => setButtonEmoji(movieId)), ???(movie => toggleStatus(movie.movieId)) ); @mikeryandev @samjulien
Slide 42
Slide 42 text
@mikeryandev @samjulien MAPPING OPERATORS @mikeryandev @samjulien
Slide 43
Slide 43 text
@mikeryandev @samjulien SORTING PACKAGES @mikeryandev @samjulien
Slide 44
Slide 44 text
@mikeryandev @samjulien @mikeryandev @samjulien
Slide 45
Slide 45 text
@mikeryandev @samjulien
Slide 46
Slide 46 text
@mikeryandev @samjulien
Slide 47
Slide 47 text
@mikeryandev @samjulien MERGEMAP @mikeryandev @samjulien
Slide 48
Slide 48 text
@mikeryandev @samjulien mergeMap
Slide 49
Slide 49 text
@mikeryandev @samjulien mergeMap
Slide 50
Slide 50 text
@mikeryandev @samjulien const actions$ = dispatcher.asObservable().pipe( tap(({ movieId }) => setButtonEmoji(movieId)), mergeMap(movie => toggleStatus(movie.movieId)) ); @mikeryandev @samjulien
Slide 51
Slide 51 text
@mikeryandev @samjulien @mikeryandev @samjulien
Slide 52
Slide 52 text
@mikeryandev @samjulien @mikeryandev @samjulien
Slide 53
Slide 53 text
@mikeryandev @samjulien WHAT HAPPENS WHEN WE CLICK TOO FAST?
Slide 54
Slide 54 text
@mikeryandev @samjulien @mikeryandev @samjulien
Slide 55
Slide 55 text
@mikeryandev @samjulien @mikeryandev @samjulien
Slide 56
Slide 56 text
@mikeryandev @samjulien RACE CONDITIONS @mikeryandev @samjulien
Slide 57
Slide 57 text
@mikeryandev @samjulien CONCATMAP @mikeryandev @samjulien
Slide 58
Slide 58 text
@mikeryandev @samjulien concatMap
Slide 59
Slide 59 text
@mikeryandev @samjulien concatMap
Slide 60
Slide 60 text
@mikeryandev @samjulien @mikeryandev @samjulien const actions$ = dispatcher.asObservable().pipe( tap(({ movieId }) => setButtonEmoji(movieId)), concatMap(movie => toggleStatus(movie.movieId)) );
Slide 61
Slide 61 text
@mikeryandev @samjulien @mikeryandev @samjulien
Slide 62
Slide 62 text
@mikeryandev @samjulien @mikeryandev @samjulien
Slide 63
Slide 63 text
@mikeryandev @samjulien BACK PRESSURE @mikeryandev @samjulien
Slide 64
Slide 64 text
@mikeryandev @samjulien REQUESTS > BUFFER SIZE @mikeryandev @samjulien
Slide 65
Slide 65 text
@mikeryandev @samjulien @mikeryandev @samjulien
Slide 66
Slide 66 text
@mikeryandev @samjulien @mikeryandev @samjulien
Slide 67
Slide 67 text
@mikeryandev @samjulien SWITCHMAP @mikeryandev @samjulien
Slide 68
Slide 68 text
@mikeryandev @samjulien switchMap
Slide 69
Slide 69 text
@mikeryandev @samjulien switchMap
Slide 70
Slide 70 text
@mikeryandev @samjulien @mikeryandev @samjulien const actions$ = dispatcher.asObservable().pipe( tap(({ movieId }) => setButtonEmoji(movieId)), switchMap(movie => toggleStatus(movie.movieId)) );
Slide 71
Slide 71 text
@mikeryandev @samjulien @mikeryandev @samjulien
Slide 72
Slide 72 text
@mikeryandev @samjulien @mikeryandev @samjulien
Slide 73
Slide 73 text
@mikeryandev @samjulien WAIT A SECOND… @mikeryandev @samjulien
Slide 74
Slide 74 text
@mikeryandev @samjulien @mikeryandev @samjulien
Slide 75
Slide 75 text
@mikeryandev @samjulien @mikeryandev @samjulien
Slide 76
Slide 76 text
@mikeryandev @samjulien @mikeryandev @samjulien
Slide 77
Slide 77 text
@mikeryandev @samjulien @mikeryandev @samjulien
Slide 78
Slide 78 text
@mikeryandev @samjulien STRANGELY, THIS MAKES SENSE… @mikeryandev @samjulien
Slide 79
Slide 79 text
@mikeryandev @samjulien @mikeryandev @samjulien const actions$ = dispatcher.asObservable().pipe( tap(({ movieId }) => setButtonEmoji(movieId)), switchMap(movie => toggleStatus(movie.movieId)) );
Slide 80
Slide 80 text
@mikeryandev @samjulien @mikeryandev @samjulien const actions$ = dispatcher.asObservable().pipe( tap(({ movieId }) => setButtonEmoji(movieId)), switchMap(movie => toggleStatus(movie.movieId)) );
Slide 81
Slide 81 text
@mikeryandev @samjulien GROUPBY @mikeryandev @samjulien
Slide 82
Slide 82 text
@mikeryandev @samjulien concatMap groupBy
Slide 83
Slide 83 text
@mikeryandev @samjulien concatMap groupBy
Slide 84
Slide 84 text
@mikeryandev @samjulien concatMap groupBy
Slide 85
Slide 85 text
@mikeryandev @samjulien concatMap groupBy
Slide 86
Slide 86 text
@mikeryandev @samjulien switchMap groupBy
Slide 87
Slide 87 text
@mikeryandev @samjulien switchMap groupBy
Slide 88
Slide 88 text
@mikeryandev @samjulien switchMap groupBy
Slide 89
Slide 89 text
@mikeryandev @samjulien switchMap groupBy
Slide 90
Slide 90 text
@mikeryandev @samjulien @mikeryandev @samjulien
Slide 91
Slide 91 text
@mikeryandev @samjulien @mikeryandev @samjulien
Slide 92
Slide 92 text
@mikeryandev @samjulien WHAT ABOUT BOTH AT ONCE? @mikeryandev @samjulien
Slide 93
Slide 93 text
@mikeryandev @samjulien @mikeryandev @samjulien
Slide 94
Slide 94 text
@mikeryandev @samjulien @mikeryandev @samjulien
Slide 95
Slide 95 text
@mikeryandev @samjulien HOW DO WE DO IT? @mikeryandev @samjulien
Slide 96
Slide 96 text
@mikeryandev @samjulien HIGHER ORDER OBSERVABLES @mikeryandev @samjulien
Slide 97
Slide 97 text
[, , ] @mikeryandev @samjulien
Slide 98
Slide 98 text
[[, , ], [, , ], [, , ]] @mikeryandev @samjulien
Slide 99
Slide 99 text
[[, , ], [, , ], [, , ]] array.flat() [, , , , , , , , ] @mikeryandev @samjulien
Slide 100
Slide 100 text
of(, , ) @mikeryandev @samjulien
Slide 101
Slide 101 text
of(of(, , ), of(, , ), of(, , )) @mikeryandev @samjulien
Slide 102
Slide 102 text
of(of(, , ), of(, , ), of(, , )) observable$.pipe(mergeAll()) of(, , , , , , , , ) @mikeryandev @samjulien
Slide 103
Slide 103 text
observable$.pipe( map(movie => toggleStatus(movie)), mergeAll() ); observable$.pipe( mergeMap(movie => toggleStatus(movie)) ); @mikeryandev @samjulien
Slide 104
Slide 104 text
GROUPBY THE SECRET WEAPON @mikeryandev @samjulien
Slide 105
Slide 105 text
packages$.pipe(groupBy(package => package.color)); COMPLETE COMPLETE COMPLETE COMPLETE @mikeryandev @samjulien
Slide 106
Slide 106 text
packages$.pipe( groupBy(package => package.color), mergeAll() ); COMPLETE COMPLETE @mikeryandev @samjulien
Slide 107
Slide 107 text
packages$.pipe( groupBy(package => package.color), mergeAll() ); @mikeryandev @samjulien
Slide 108
Slide 108 text
actions$.pipe( groupBy(action => action.movieId), mergeAll() ); @mikeryandev @samjulien
Slide 109
Slide 109 text
actions$.pipe( groupBy(action => action.movieId), map(actionsByMovieId$ => { return actionsByMovieId$.pipe( switchMap(action => { return toggleStatus(action.movieId); }) ); }), mergeAll() ); @mikeryandev @samjulien
Slide 110
Slide 110 text
actions$.pipe( groupBy(action => action.movieId), map(actionsByMovieId$ => { return actionsByMovieId$.pipe( switchMap(action => { return toggleStatus(action.movieId); }) ); }), mergeAll() ); @mikeryandev @samjulien
Slide 111
Slide 111 text
actions$.pipe( groupBy(action => action.movieId), map(actionsByMovieId$ => { return actionsByMovieId$.pipe( switchMap(action => { return toggleStatus(action.movieId); }) ); }), mergeAll() ); @mikeryandev @samjulien
Slide 112
Slide 112 text
actions$.pipe( groupBy(action => action.movieId), map(actionsByMovieId$ => { return actionsByMovieId$.pipe( switchMap(action => { return toggleStatus(action.movieId); }) ); }), mergeAll() ); @mikeryandev @samjulien
Slide 113
Slide 113 text
actions$.pipe( groupBy(action => action.movieId), map(actionsByMovieId$ => { return actionsByMovieId$.pipe( switchMap(action => { return toggleStatus(action.movieId); }) ); }), mergeAll() ); @mikeryandev @samjulien
Slide 114
Slide 114 text
@mikeryandev @samjulien DEMO @mikeryandev @samjulien
Slide 115
Slide 115 text
@mikeryandev @samjulien @mikeryandev @samjulien
Slide 116
Slide 116 text
@mikeryandev @samjulien @mikeryandev @samjulien
Slide 117
Slide 117 text
@mikeryandev @samjulien @mikeryandev @samjulien
Slide 118
Slide 118 text
@mikeryandev @samjulien @mikeryandev @samjulien
Slide 119
Slide 119 text
@mikeryandev @samjulien WE HAVE A PROBLEM… @mikeryandev @samjulien
Slide 120
Slide 120 text
@mikeryandev @samjulien
Slide 121
Slide 121 text
No content
Slide 122
Slide 122 text
No content
Slide 123
Slide 123 text
No content
Slide 124
Slide 124 text
No content
Slide 125
Slide 125 text
No content
Slide 126
Slide 126 text
No content
Slide 127
Slide 127 text
No content
Slide 128
Slide 128 text
No content
Slide 129
Slide 129 text
@mikeryandev @samjulien WE HAVE BUILT A VERY EFFICIENT MEMORY LEAK @mikeryandev @samjulien
Slide 130
Slide 130 text
groupBy( /* Key Selector */, /* Element Selector */, /* Duration Selector */, ) @mikeryandev @samjulien
Slide 131
Slide 131 text
@mikeryandev @samjulien Returns an observable that will clean up the group when it noti f i es or completes. DURATION SELECTOR @mikeryandev @samjulien
Slide 132
Slide 132 text
groupBy( /* Key Selector */, /* Element Selector */, /* Duration Selector */, ) @mikeryandev @samjulien
Slide 133
Slide 133 text
groupBy( action => action.movieId, action => action, group$ => /* discard group after 15s of silence */, ) @mikeryandev @samjulien
Slide 134
Slide 134 text
@mikeryandev @samjulien HOW DO WE GET TO 15 SECONDS OF SILENCE? @mikeryandev @samjulien
Slide 135
Slide 135 text
@mikeryandev @samjulien timeoutWith( /** Time in MS */, /** Observable to Switch To */ ); @mikeryandev @samjulien
Slide 136
Slide 136 text
observable$.pipe(timeoutWith(15000, EMPTY)); COMPLETE COMPLETE @mikeryandev @samjulien
Slide 137
Slide 137 text
@mikeryandev @samjulien Returns an observable that will clean up the group when it noti f i es or completes. DURATION SELECTOR @mikeryandev @samjulien
Slide 138
Slide 138 text
@mikeryandev @samjulien Returns an observable that will clean up the group when it noti f i es or completes. DURATION SELECTOR @mikeryandev @samjulien
Slide 139
Slide 139 text
observable$.pipe(timeoutWith(15000, EMPTY)); COMPLETE COMPLETE @mikeryandev @samjulien
Slide 140
Slide 140 text
observable$.pipe(timeoutWith(15000, EMPTY)); COMPLETE COMPLETE Noti f i cation Completion @mikeryandev @samjulien
Slide 141
Slide 141 text
@mikeryandev @samjulien DEMO @mikeryandev @samjulien
Slide 142
Slide 142 text
@mikeryandev @samjulien
Slide 143
Slide 143 text
@mikeryandev @samjulien
Slide 144
Slide 144 text
@mikeryandev @samjulien WE HAVE REBUILT MERGEMAP @mikeryandev @samjulien
Slide 145
Slide 145 text
observable$.pipe(???); @mikeryandev @samjulien COMPLETE COMPLETE
Slide 146
Slide 146 text
@mikeryandev @samjulien HOW DO WE GET RID OF THE NOTIFICATIONS? @mikeryandev @samjulien
Slide 147
Slide 147 text
observable$.pipe(ignoreElements()); COMPLETE COMPLETE @mikeryandev @samjulien
Slide 148
Slide 148 text
observable$.pipe( timeoutWith(15000, EMPTY), ignoreElements() ); @mikeryandev @samjulien
Slide 149
Slide 149 text
observable$.pipe( timeoutWith(15000, EMPTY), ignoreElements() ); @mikeryandev @samjulien
Slide 150
Slide 150 text
observable$.pipe( timeoutWith(15000, EMPTY), ignoreElements() ); @mikeryandev @samjulien
Slide 151
Slide 151 text
observable$.pipe( timeoutWith(15000, EMPTY), ignoreElements() ); COMPLETE COMPLETE @mikeryandev @samjulien
Slide 152
Slide 152 text
actions$.pipe( groupBy( action => action.movieId, action => action, actionsByMovieId$ => actionsByMovieId$.pipe( timeoutWith(15000, EMPTY), ignoreElements() ) ) ); @mikeryandev @samjulien
Slide 153
Slide 153 text
actions$.pipe( groupBy( action => action.movieId, action => action, actionsByMovieId$ => actionsByMovieId$.pipe( timeoutWith(15000, EMPTY), ignoreElements() ) ) ); @mikeryandev @samjulien
Slide 154
Slide 154 text
actions$.pipe( groupBy( action => action.movieId, action => action, actionsByMovieId$ => actionsByMovieId$.pipe( timeoutWith(15000, EMPTY), ignoreElements() ) ) ); @mikeryandev @samjulien
Slide 155
Slide 155 text
actions$.pipe( groupBy( action => action.movieId, action => action, actionsByMovieId$ => actionsByMovieId$.pipe( timeoutWith(15000, EMPTY), ignoreElements() ) ) ); @mikeryandev @samjulien
Slide 156
Slide 156 text
actions$.pipe( groupBy( action => action.movieId, action => action, actionsByMovieId$ => actionsByMovieId$.pipe( timeoutWith(15000, EMPTY), ignoreElements() ) ) ); @mikeryandev @samjulien
Slide 157
Slide 157 text
@mikeryandev @samjulien NO MORE HIGHLY EFFICIENT MEMORY LEAKS @mikeryandev @samjulien
Slide 158
Slide 158 text
actions$.pipe( switchMap(action => toggleStatus(action.movieId)) ); @mikeryandev @samjulien
Slide 159
Slide 159 text
actions$.pipe( groupBy( action => action.movieId, action => action, actionsByMovieId$ => actionsByMovieId$.pipe( timeoutWith(15000, EMPTY), ignoreElements() ) ), map(actionsByMovieId$ => actionsByMovieId$.pipe( switchMap(action => toggleStatus(action.movieId)) ) ), mergeAll() );
Slide 160
Slide 160 text
actions$.pipe( groupBy( action => action.movieId, action => action, actionsByMovieId$ => actionsByMovieId$.pipe( timeoutWith(15000, EMPTY), ignoreElements() ) ), map(actionsByMovieId$ => actionsByMovieId$.pipe(
Slide 161
Slide 161 text
actions$.pipe( groupBy( action => action.movieId, action => action, actionsByMovieId$ => actionsByMovieId$.pipe( timeoutWith(15000, EMPTY), ignoreElements() ) ), map(actionsByMovieId$ => actionsByMovieId$.pipe(
Slide 162
Slide 162 text
actionsByMovieId$.pipe( timeoutWith(15000, EMPTY), ignoreElements() ) ), map(actionsByMovieId$ => actionsByMovieId$.pipe( switchMap(action => toggleStatus(action.movieId)) ) ), mergeAll() );
Slide 163
Slide 163 text
actionsByMovieId$.pipe( timeoutWith(15000, EMPTY), ignoreElements() ) ), map(actionsByMovieId$ => actionsByMovieId$.pipe( switchMap(action => toggleStatus(action.movieId)) ) ), mergeAll() );
Slide 164
Slide 164 text
) ), map(actionsByMovieId$ => actionsByMovieId$.pipe( switchMap(action => toggleStatus(action.movieId)) ) ), mergeAll() );
Slide 165
Slide 165 text
) ), map(actionsByMovieId$ => actionsByMovieId$.pipe( switchMap(action => toggleStatus(action.movieId)) ) ), mergeAll() );
Slide 166
Slide 166 text
actions$.pipe( groupBy( action => action.movieId, action => action, actionsByMovieId$ => actionsByMovieId$.pipe( timeoutWith(15000, EMPTY), ignoreElements() ) ), map(actionsByMovieId$ => actionsByMovieId$.pipe( switchMap(action => toggleStatus(action.movieId)) ) ), mergeAll() );
Slide 167
Slide 167 text
actions$.pipe( groupBy( action => action.movieId, action => action, actionsByMovieId$ => actionsByMovieId$.pipe( timeoutWith(15000, EMPTY), ignoreElements() ) ), map(actionsByMovieId$ => actionsByMovieId$.pipe( switchMap(action => toggleStatus(action.movieId)) ) ), mergeAll() ); Group By Movie ID
Slide 168
Slide 168 text
actions$.pipe( groupBy( action => action.movieId, action => action, actionsByMovieId$ => actionsByMovieId$.pipe( timeoutWith(15000, EMPTY), ignoreElements() ) ), map(actionsByMovieId$ => actionsByMovieId$.pipe( switchMap(action => toggleStatus(action.movieId)) ) ), mergeAll() ); Save Status
Slide 169
Slide 169 text
actions$.pipe( groupBy( action => action.movieId, action => action, actionsByMovieId$ => actionsByMovieId$.pipe( timeoutWith(15000, EMPTY), ignoreElements() ) ), map(actionsByMovieId$ => actionsByMovieId$.pipe( switchMap(action => toggleStatus(action.movieId)) ) ), mergeAll() ); Flatten Everything
Slide 170
Slide 170 text
actions$.pipe( groupBy( action => action.movieId, action => action, actionsByMovieId$ => actionsByMovieId$.pipe( timeoutWith(15000, EMPTY), ignoreElements() ) ), map(actionsByMovieId$ => actionsByMovieId$.pipe( switchMap(action => toggleStatus(action.movieId)) ) ), mergeAll() );
Slide 171
Slide 171 text
actions$.pipe( groupBy( action => action.movieId, action => action, actionsByMovieId$ => actionsByMovieId$.pipe( timeoutWith(15000, EMPTY), ignoreElements() ) ), mergeMap(actionsByMovieId$ => actionsByMovieId$.pipe( switchMap(action => toggleStatus(action.movieId)) ) ) );
Slide 172
Slide 172 text
actions$.pipe( groupBy( action => action.movieId, action => action, actionsByMovieId$ => actionsByMovieId$.pipe( timeoutWith(15000, EMPTY), ignoreElements() ) ), mergeMap(actionsByMovieId$ => actionsByMovieId$.pipe( switchMap(action => toggleStatus(action.movieId)) ) ) );
Slide 173
Slide 173 text
@mikeryandev @samjulien DEMO @mikeryandev @samjulien
Slide 174
Slide 174 text
@mikeryandev @samjulien @mikeryandev @samjulien
Slide 175
Slide 175 text
@mikeryandev @samjulien @mikeryandev @samjulien
Slide 176
Slide 176 text
@mikeryandev @samjulien @mikeryandev @samjulien
Slide 177
Slide 177 text
@mikeryandev @samjulien @mikeryandev @samjulien
Slide 178
Slide 178 text
@mikeryandev @samjulien UI COMPONENTS DISPATCHER ACTIONS API
Slide 179
Slide 179 text
@mikeryandev @samjulien UI COMPONENTS DISPATCHER ACTIONS API POTENTIAL PERFORMANCE BOTTLENECKS
Slide 180
Slide 180 text
@mikeryandev @samjulien UI COMPONENTS DISPATCHER ACTIONS API API API
Slide 181
Slide 181 text
@mikeryandev @samjulien CUSTOM OPERATOR…? @mikeryandev @samjulien
Slide 182
Slide 182 text
@mikeryandev @samjulien samj.im/groupby-talk @mikeryandev @samjulien
Slide 183
Slide 183 text
@mikeryandev @samjulien samj.im/groupby-talk @mikeryandev @samjulien THANK YOU!