Service Invocation

Dapr provides users with the ability to call other applications that have unique ids. This functionality allows apps to interact with one another via named identifiers and puts the burden of service discovery on the Dapr runtime.

Invoke a method on a remote Dapr app

This endpoint lets you invoke a method in another Dapr enabled app.

HTTP Request

POST/GET/PUT/DELETE http://localhost:3500/v1.0/invoke/<id>/method/<method-name>

HTTP Response codes

Code	Description
200	Request successful
500	Request failed

URL Parameters

Parameter	Description
id	the App ID associated with the remote app
method-name	the name of the method or url to invoke on the remote app

curl http://localhost:3500/v1.0/invoke/countService/method/sum \
	-H "Content-Type: application/json"

Sending data

You can send data by posting it as part of the request body.

curl http://localhost:3500/v1.0/invoke/countService/method/calculate \
	-H "Content-Type: application/json"
	-d '{ "arg1": 10, "arg2": 23, "operator": "+" }'

The response from the remote endpoint will be returned in the request body.