Twilio calls it a SID

go.mod

@@ -0,0 +1,10 @@
+module git.bunk.computer/bunk/smsbb
+
+go 1.21.4
+
+require github.com/twilio/twilio-go v1.16.0
+
+require (
+	github.com/golang/mock v1.6.0 // indirect
+	github.com/pkg/errors v0.9.1 // indirect
+)

go.sum

@@ -0,0 +1,50 @@
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readme.md

@@ -3,8 +3,46 @@
 ✨ DIY sms announce lists for you and yours ✨
 
 ## norms for working on this repo
+
 - work in a branch
 - branch names should use the format `username/thing-you-are-doing`
   - for example `git checkout -b maren/update-readme-3`
 - don't worry about tidy commits! just keep your work in a branch
 - open a PR and review with someone synchronously before merging to main
+
+## getting started real fast
+
+Here's what to do if you haven't already set up your `GOPATH`:
+
+1. Run `go env` and figure out how your Go installation is configured
+   with respect to your `GOPATH`:
+
+   ```shell
+   $ go env | grep GOPATH
+   GOPATH='/home/you/go'
+   ```
+
+2. Set up this repository within your `GOPATH`:
+
+   ```shell
+   # If GOPATH is /home/you/go, then...
+   $ cd ~/go && mkdir -p pkg/git.bunk.computer/bunk/smsbb && cd pkg/git.bunk.computer/bunk
+   $ git clone https://git.bunk.computer/bunk/smsbb
+   $ cd smsbb
+   ```
+
+3. Get your Twilio Account SID and Auth Token and store them in the following environment
+   variables:
+
+   ```shell
+   $ export SMSBB_ACCT_SID="..." # Your Twilio Account SID goes here
+   $ export SMSBB_AUTH_TOKEN="..." # Your Twilio Auth Token goes here
+   ```
+
+4. Run `smsbb`:
+
+   ```shell
+   # In this example, +1 (828) 555-0123 is the "from" address, and
+   # +1 (828) 555-4567 is the "to" address
+   $ go run smsbb.go "+18285550123" "+18285554567" "This is your first message\!"
+   ```

smsbb.go

@@ -0,0 +1,49 @@
+package main
+
+import (
+	"encoding/json"
+	"fmt"
+	"os"
+
+	"github.com/twilio/twilio-go"
+
+	twilioApi "github.com/twilio/twilio-go/rest/api/v2010"
+)
+
+func main () {
+	accountSid := os.Getenv("SMSBB_ACCT_SID")
+	authToken := os.Getenv("SMSBB_AUTH_TOKEN")
+
+	if (len(accountSid) == 0) {
+		fmt.Fprintf(os.Stderr, "Please set the SMSBB_ACCT_SID environment variable to your Twilio account SID\n")
+		os.Exit(1)
+	}
+
+	if (len(authToken) == 0) {
+		fmt.Fprintf(os.Stderr, "Please set the SMSBB_AUTH_TOKEN environment variable to your Twilio authentication token\n")
+		os.Exit(1)
+	}
+
+	if (len(os.Args) < 4) {
+		fmt.Fprintf(os.Stderr, "%s FROM-NUMBER TO-NUMBER MESSAGE-BODY\n", os.Args[0])
+		os.Exit(1)
+	}
+
+	client := twilio.NewRestClientWithParams(twilio.ClientParams{
+		Username: accountSid,
+		Password: authToken,
+	})
+
+	params := &twilioApi.CreateMessageParams{}
+	params.SetFrom(os.Args[1])
+	params.SetTo(os.Args[2])
+	params.SetBody(os.Args[3])
+
+	resp, err := client.Api.CreateMessage(params)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "Error sending SMS message: %s", err.Error())
+	} else {
+		response, _ := json.Marshal(*resp)
+		fmt.Printf("Response from Twilio: %s", string(response))
+	}
+}