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GH-750 Add support for pluggable protobufs

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This initial support adds plugin extension to support CloudEvent proto as well as the example
Additional plugins could be provided in the same ay as CloudEvent plugin extension

Resolves #750
This commit is contained in:
Oleg Zhurakousky
2021-10-11 14:03:24 +02:00
parent 346ff53539
commit 7fc755e157
41 changed files with 2659 additions and 312 deletions
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spring-cloud-function-adapters/spring-cloud-function-grpc-cloudevent-ext/README.md Normal file
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# Spring Cloud Function gRPC extension to support CloudEvent proto.
This extension project designed as an extension to general Spring Cloud Function gRPC support to specifically suport
[CloudEvent proto](https://github.com/cloudevents/spec/blob/v1.0.1/spec.proto)
To use it simply import it as a dependency to your project together with
```xml
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-function-grpc</artifactId>
</dependency>
```
Your project should also explicitly import [CloudEvent proto](https://github.com/cloudevents/spec/blob/v1.0.1/spec.proto) and
service proto
```
syntax = "proto3";
package io.cloudevents.v1;
import "google/protobuf/any.proto";
import "google/protobuf/timestamp.proto";
import "CloudEvent.proto";
service CloudEventService {
rpc biStream(stream io.cloudevents.v1.CloudEvent) returns (stream io.cloudevents.v1.CloudEvent);
rpc clientStream(stream io.cloudevents.v1.CloudEvent) returns (io.cloudevents.v1.CloudEvent);
rpc serverStream(io.cloudevents.v1.CloudEvent) returns (stream io.cloudevents.v1.CloudEvent);
rpc requestReply(io.cloudevents.v1.CloudEvent) returns (io.cloudevents.v1.CloudEvent);
}
```
Once done, you can send/receive CloudEvent messages
You can also reference [this sample](https://github.com/spring-cloud/spring-cloud-function/tree/main/spring-cloud-function-samples/function-sample-grpc-cloudevent)