Python-powered chat apps with Twilio and SendGrid Transcripts
Chapter: Messaging and workflows with Twilio Studio
Lecture: Receiving and sending our first message

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0:00 To get started. Let's just do a really simple message exchange.
0:04 Somebody sends us a message. Let's just send them a really simple response.
0:08 We come down here, to the messaging, we want,
0:12 just send message. We're not going to wait for an answer from them.
0:15 The whole flow is going to be Hello.
0:16 Hi, there. So let's drag this over here and notice.
0:20 We've got this little lollipop thing here and a whole that's the same size.
0:24 So we dragged these together. Now you can see when a message comes in,
0:28 we're gonna run this. Let's go over and actually change.
0:32 The name should definitely set meaningful names here.
0:34 You're gonna have to program against this name as if it was a variable or class
0:38 name or something like that throughout this whole workflow.
0:41 But this one I'm gonna do TEMP_Echo Message or something like that.
0:45 Maybe normally I'd call it echo message,
0:47 but I'm gonna call TEMP. There's also something wrong with it. And see the body
0:50 may not be null, so let's just so Hey there.
0:53 Thanks for your cake interest. Great.
0:57 And we save that it goes back to good.
1:00 Each workflow has its own URL as you'll see.
1:04 So if we go over to the trigger and expand this out a little bit in
1:08 order to start this workflow in order to trigger the trigger,
1:12 we could either do an API call here.
1:16 Or we could use this Web hook that we can plug into other parts of twilio
1:20 or other Web apps. Basically,
1:21 this is a in point that if you do a post message to,
1:25 it's going to start this workflow.
1:26 So what we do is we're going to copy this,
1:30 and we need to tell our WhatsApp sandbox when it receives a message to start this
1:35 workflow. You already saw that we have multiple workflows.
1:38 Which one is it going to start?
1:39 Well, this one, over the programmable messaging we saw that there's the Try it out
1:46 WhatsApp. We've already been here.
1:49 That's great. But what we need to do is go to the Settings section, WhatsApp
1:53 sandbox settings, and we need to set the Web hook right here.
1:57 So when a message comes in right now,
1:59 it's who knows is running some particular Web hook that is not our workflow.
2:02 So we're going to change this,
2:05 come down here and press save.
2:08 And now when a message comes in,
2:09 it should run that workflow. We have one final thing to do.
2:12 In order to make this work,
2:14 we go back to our Cloudcity, notice at the top.
2:17 Here we have 10 changes. So as we work,
2:20 changes we make are saved, but they're not pushed to production.
2:24 Remember, there could be live people interacting with this.
2:27 And you don't want to just push this out as you just mess around with it
2:30 You want to get everything ready and say,
2:31 now we're ready to publish it.
2:33 So let's press publish. Great.
2:36 Our workflow is up to date.
2:38 Let's see if we can send it a message it should respond with.
2:41 Hey there. Thanks for your cake interest.
2:44 So back over here. Let's say I really need a cake.
2:50 Awesome! Awesome. Awesome. Look at that.
2:52 It said, Hey there. Thanks for your cake interest.
2:54 It's not nearly as involved in interesting as what you saw us do before,
2:58 but we're on our way down that path,
3:00 aren't we were getting it set up.
3:02 So we've sent a message over there to
3:04 twilio. It hit our sandbox which pushed over to that Web hook.
3:08 That Web hook triggered the workflow.
3:10 The workflow simply says, Hey,
3:12 if you start up, send the message back.
3:13 Hey there. Thanks for your cake interest.
3:15 Perfect. Everything set up and we're ready to build our workflow.