Serverless Boilerplate - OpenWhisk - Rust

(This example is largely based on the openwhisk-go-simple by James Thomas but adapted for Rust)

Make sure serverless is installed. See installation guide.

You will also need to set up your OpenWhisk account credentials using environment variables or a configuration file. Please see the this guide for more information.

1. Install Project Dependencies

npm install in this directory to download the modules from package.json.

2. Compile Rust Binary (Statically)

$ cargo build --release --target x86_64-unknown-linux-musl

3. Deploy

serverless deploy or sls deploy. sls is shorthand for the Serverless CLI command

Serverless: Packaging service...
Serverless: Excluding development dependencies...
Serverless: Compiling Functions...
Serverless: Compiling Packages...
Serverless: Compiling API Gateway definitions...
Serverless: Compiling Rules...
Serverless: Compiling Triggers & Feeds...
Serverless: Compiling Service Bindings...
Serverless: Deploying Functions...
Serverless: Deploying API Gateway definitions...
Serverless: Deployment successful!


Service Information
platform:	us-south.functions.cloud.ibm.com
namespace:	_
service:	rust-service

actions:
rust-service-dev-test_test

4. Invoke deployed function

serverless invoke --function test_test or serverless invoke -f test_test

-f is shorthand for --function

In your terminal window you should see the response from Apache OpenWhisk

$ serverless invoke -f test_test
{
    "message": "Serverless Rust Hello"
}

For more information on the Serverless OpenWhisk plugin, please see the project repository: https://serverless.com/framework/docs/providers/openwhisk/guide/credentials/.