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