Dapr go client example

The example folder contains a Dapr enabled serving app and a client app that uses this SDK to invoke Dapr API for state and events, The serving app is available as HTTP or gRPC. The client app can target either one of these for service to service and binding invocations.

To run this example, start by first launching the service in ether HTTP or gRPC:

HTTP

cd example/serving/http
dapr run --app-id serving \
         --app-protocol http \
         --app-port 8080 \
         --dapr-http-port 3500 \
         --log-level debug \
         --components-path ./config \
         go run main.go

gRPC

cd example/serving/grpc
dapr run --app-id serving \
         --app-protocol grpc \
         --app-port 50001 \
         --dapr-grpc-port 3500 \
         --log-level debug \
         --components-path ./config \
         go run main.go

Client

Once one of the above services is running is running, launch the client:

cd example/client
dapr run --app-id caller \
         --components-path ./config \
         --log-level debug \
         go run main.go

API

PubSub

Publish JSON content

curl -d '{ "from": "John", "to": "Lary", "message": "hi" }' \
     -H "Content-type: application/json" \
     "http://localhost:3500/v1.0/publish/messages"

Publish XML content (read as text)

curl -d '<message><from>John</from><to>Lary</to></message>' \
     -H "Content-type: application/xml" \
     "http://localhost:3500/v1.0/publish/messages"

Publish BIN content

curl -d '0x18, 0x2d, 0x44, 0x54, 0xfb, 0x21, 0x09, 0x40' \
     -H "Content-type: application/octet-stream" \
     "http://localhost:3500/v1.0/publish/messages"

Service Invocation

Invoke service with JSON payload

curl -d '{ "from": "John", "to": "Lary", "message": "hi" }' \
     -H "Content-type: application/json" \
     "http://localhost:3500/v1.0/invoke/serving/method/echo"

Invoke service with plain text message

curl -d "ping" \
     -H "Content-type: text/plain;charset=UTF-8" \
     "http://localhost:3500/v1.0/invoke/serving/method/echo"

Invoke service with no content

curl -X DELETE \
    "http://localhost:3500/v1.0/invoke/serving/method/echo?k1=v1&k2=v2"

Input Binding

Uses the config/cron.yaml component