Modern Node.js API Development with LoopBack 4

Craig Freeman and Jake Brauchler will introduce the core concepts and demonstrate how to quickly get started with modern API development using LoopBack 4.

[irfandy]

Timeline:

35:40 *_Live Demo_*
-- (40:25) lb4 model
-- (42:50) lb4 datasource
-- (44:01) lb4 repository
-- (44:48) lb4 controller

49:51 Add 'Planet' and 'Species' model
52:21 End of adding 'Planet' and 'Species' model

**### Editing Hero's Repository**
52:32 Relational Model
belongsTo method
55:33 Adds another thing

56:15 Linking repositories

**### Editing Hero's Controller**
1:00:11 Adding custom methods
1:02:04 Checking results..
_!Watch out, _ missing semicolons and changing hero models.

**### OpenAPI**
// Help I don't understand
// what you said in this section :(
// Are you saying we can use
// that JSON file to re-use it again?
1:07:04 Generator

**### GraphQL Server**
1:13:41 Generating GraphQL Server

[СеменБеленко-од]

Hello! I study at university in Russia. I want to thank you. This video really helps me.

[jiwankumartamang]

loopback4 is all about what I wanted in node. It is super cool.

[haralc]

I had to download the video as mp4 and play in VLC with 200% volume.

[ozzymek]

1:24:00 I see I'm not the only one with GraphQL openapi.json issues.. But keep up the good work in developing this great framework!

[irfandy]

This seems like a really powerful tool to have, do you have any course recommendation for LoopBack 4 In Depth?

[huubdegroot]

So much missing realtime feature! When clients connect to this servers, they should automatically get updates on database changes. Was missing in LB2 and 3. Using Fireloop with LB3 for realtime updates of clients... can we expect this feature in LB4?

[GooseDave]

Big fan of 3, but realise there are benefits to upgrading to 4 - this helped - thanks

[cntehran]

Hi, I tried the what you teach in this lesson, its ok when using memory db but when using mongodb-datasource I get this error :


"error": {
"statusCode": 422,
"name": "UnprocessableEntityError",
"message": "The request body is invalid. See error object details property for more info.",
"code": "VALIDATION_FAILED",
"details": [
{
"path": "",
"code": "not",
"message": "should NOT be valid",
"info": {}
}
]
}
}

[pavelsecara]

Hi!
When I click on PingController in the explorer to expand GET nothing happens, just PingController becomes default an when I try to expand the it just loading.
Can someone explain me why it happens?

[liveentertiner]

Hi, How to impletement JWT Authenticaltion in Loopback 4 endpoints. Please send me if you have any refernce examples.

[aminawahabi]

hi How to impletement angular 8 Authenticaltion in Loopback 4 connect to postgresql . Please send me if you have any refernce examples.

[intuneknight]

This seems a very good tool I'm playing with this.

[karthi]

How to implement logger in loop back 4

[ComisarioLobo]

sorry but sound is terrible, almost no audible :(

[ghostsOfWar]

such a bad demo you can't get through it even if you try