more tutorial

examples/tutorial/hello/go/.gitignore

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+vendor/
+/hello
+/go
+/app
+/__uberscript__
+
+func.yaml

examples/tutorial/hello/go/README.md

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+# Tutorial 1: Go Function w/ Input (3 minutes)
+
+This example will show you how to test and deploy Go (Golang) code to Oracle Functions. It will also demonstrate passing data in through stdin.
+
+First, run the following commands to create, run, and deploy your function:
+
+```sh
+# Initialize your function creating a func.yaml file
+fn init <DOCKERHUB_USERNAME>/hello
+
+# Test your function. This will run inside a container exactly how it will on the server
+fn run
+
+# Now try with an input
+cat hello.payload.json | fn run
+
+# Deploy your functions to the Oracle Functions server (default localhost:8080)
+# This will create a route to your function as well
+fn deploy myapp
+```
+Now call your function:
+
+```sh
+curl http://localhost:8080/r/myapp/hello
+```
+Or call from a browser: [http://localhost:8080/r/myapp/hello](http://localhost:8080/r/myapp/hello)
+
+And now with the JSON input:
+
+```sh
+curl -H "Content-Type: application/json" -X POST -d @hello.payload.json http://localhost:8080/r/myapp/hello
+```
+
+That's it!
+
+# In Review
+
+1. We piped JSON data into the function at the command line
+```sh
+cat hello.payload.json | fn run
+```
+2. We received our input through stdin
+```go
+json.NewDecoder(os.Stdin).Decode(p)
+```
+3. We wrote our output to stdout
+```go
+fmt.Printf("Hello")
+```
+4. We sent stderr to the server logs
+```go
+log.Println("here")
+```
+
+# Next Up
+## [Tutorial 2: Input Parameters](examples/tutorial/params)

examples/tutorial/hello/go/func.go

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+package main
+
+import (
+	"encoding/json"
+	"fmt"
+	"log"
+	"os"
+)
+
+type Person struct {
+	Name string
+}
+
+func main() {
+	p := &Person{Name: "World"}
+	json.NewDecoder(os.Stdin).Decode(p)
+	fmt.Printf("Hello %v!\n", p.Name)
+
+	log.Println("---> stderr goes to the server logs.")
+}

examples/tutorial/hello/go/hello.payload.json

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+{
+    "name": "Johnny"
+}