![Building Block API
POST /v1.0/state/vehicles HTTP/1.1
Host: localhost:3500
Content-Type: application/json
[
{
"key": "YH-52-VD",
"value": "{"licenseNumber":"YH-52-VD",
"entryTimestamp":"2021-09-15T11:19:18.1781609"
}"
}
]
HTTP/1.1 204 No Content
Maarten Mulders (@mthmulders)
#dapr](https://image.slidesharecdn.com/dapr-talk-211105112759/85/Dapr-Dinosaur-or-Developer-Dream-J-Fall-12-320.jpg)
Dapr: Dinosaur or Developer Dream? (J-Fall)
- 1. Dapr Dinosaur or Developer's Dream? Maarten Mulders (@mthmulders) #dapr
- 5. ...if only there were a standardised API for that! Maarten Mulders (@mthmulders) #dapr
- 6. Here Be Dinosaurs?! (Source: , December 2003, retrieved September 2021) “J2EE has emerged, since it was first released in 1999, as an integrated standard for implementing and deploying portable, multi-tiered enterprise applications The All New J2EE 1.4 Platform Maarten Mulders (@mthmulders) #dapr
- 8. Can't this be a little simpler...? Maarten Mulders (@mthmulders) #dapr
- 9. Dapr: Distributed Application Runtime “An event-driven, portable runtime for building microservices on cloud and edge. Maarten Mulders (@mthmulders) #dapr
- 10. Ingredients (or: Buzzword Bingo) Open Source Polyglot Modular Pluggable Cloud-Native warning: may contain traces of nuts, gluten and other allergens. Maarten Mulders (@mthmulders) #dapr
- 11. Building Block Describe cross-cutting concerns for building distributed systems, e.g. “my application needs to store data as key/value pairs Maarten Mulders (@mthmulders) #dapr
- 12. Building Block API POST /v1.0/state/vehicles HTTP/1.1 Host: localhost:3500 Content-Type: application/json [ { "key": "YH-52-VD", "value": "{"licenseNumber":"YH-52-VD", "entryTimestamp":"2021-09-15T11:19:18.1781609" }" } ] HTTP/1.1 204 No Content Maarten Mulders (@mthmulders) #dapr
- 13. Building Block API GET /v1.0/state/vehicles/YH-52-VD HTTP/1.1 Host: localhost:3500 Accept: application/json HTTP/1.1 200 OK Content-Type: application/json "{ "licenseNumber":"YH-52-VD", "entryTimestamp":"2021-09-15T11:19:18.1781609" }" Maarten Mulders (@mthmulders) #dapr
- 17. Service Mesh on Steroids Service Mesh on Steroids Service Mesh on Steroids Service Mesh on Steroids Service Mesh on Steroids Maarten Mulders (@mthmulders) #dapr
- 18. Demo: key/value store Maarten Mulders (@mthmulders) #dapr
- 21. 🤞🏻 🤞🏻 🤞🏻 🤞🏻 🤞🏻 1. Start the Dapr sidecar 2. Start the demo app 3. Store / retrieve data Maarten Mulders (@mthmulders) #dapr
- 23. 1. State Store — key/value storage 2. Service Invocation — invoke remote methods 3. Pub/Sub — async message processing 4. Bindings — interfaces to/from external integrations 5. Secrets — various secret stores 6. Name resolution — name resolution for service invocation 7. Middleware — various filters on incoming Web requests Over 27 implementations available! Maarten Mulders (@mthmulders) #dapr
- 24. Service Invocation Service Invocation Service Invocation Service Invocation Service Invocation Maarten Mulders (@mthmulders) #dapr
- 28. Demo: service invocation & output bindings Maarten Mulders (@mthmulders) #dapr
- 30. 🤞🏻 🤞🏻 🤞🏻 🤞🏻 🤞🏻 1. Start the Dapr sidecar 2. Start the demo apps 3. Simulate traffic 🚗 4. Receive speeding ticket 😱 Maarten Mulders (@mthmulders) #dapr
- 32. Tracing Inject custom headers (e.g. X-B3-TraceId and X-B3-SpanId) to measure execution throughout a chain. Zipkin collects those traces and provides visualisations. Maarten Mulders (@mthmulders) #dapr
- 34. Metrics Application records metrics (numeric measurements) Prometheus collects (scrapes) measurements → time series Grafana hosts dashboards to visualise the time series Maarten Mulders (@mthmulders) #dapr
- 35. Metrics Dapr exposes metrics about its own processes, such as: resource usage mTLS (certificate issuing) sidecar operations Maarten Mulders (@mthmulders) #dapr
- 37. Tracing with Dapr sidecar POST /v1.0/invoke/vehicleregistrationservice/method/vehicleinfo/YH-52-VD Host: localhost:3500 Content-Type: application/json X-DaprRequestId: b237d1da-beaa-42ef-b8c6-fcf38a900a21 ... (omitted for brevity) Maarten Mulders (@mthmulders) #dapr
- 38. The Dapr SDK for Java Using io.dapr:dapr-sdk and optionally io.dapr:dapr-sdk- springboot daprClient.invokeMethod( "vehicleregistrationservice", "vehicleinfo/" + licenseNumber, null, // no request body HttpExtension.GET, VehicleInfo.class ); Maarten Mulders (@mthmulders) #dapr
- 39. Dinosaur or Developer's Dream? Maarten Mulders (@mthmulders) #dapr
- 40. Dinosaur? BUSTED Developer's Dream? BUSTED Maarten Mulders (@mthmulders) #dapr
- 41. Dapr — Take Aways 1. Building blocks for distributed application integration patterns 2. The sidecar brings you to places you've never been before 3. Not a one-stop shop or Swiss army knife DIY Workshop: https://bit.ly/dapr-workshop- java Maarten Mulders (@mthmulders) #dapr
- 42. Image attributions electronic circuit board - infrastructure - SPECS-speed camera in Utrecht, The Netherlands - lego - airplane cockpit - https://pxhere.com/en/photo/941067 https://pxhere.com/en/photo/1534169 https://commons.wikimedia.org/wiki/File:Trajectcontrole.jpg https://pxhere.com/en/photo/1121211 https://pxhere.com/en/photo/609377 Maarten Mulders (@mthmulders) #dapr