I am making a http call from the gupshup IDE bot as below.
function MessageHandler(context, event) {
if(event.message. == "postdata") {
var url = "https://abcserver.com/sm/postData";
var header = {"token":"ca916a68d94","Content-Type": "application/x-www-form-urlencoded"};
var param = "userName=John&phoneNumber=1123111111";
context.simplehttp.makePost(url,param,header);
}
function HttpResponseHandler(context, event) {
var result= JSON.parse(event.getresp);
if(result=="success")
context.sendResponse("We have successfully stored your data");
}
I need a way to handle the failure i.e if the url (https://abcserver.com/sm/postData) is not reachable then I don't get any callback, HttpResponseHandler is not called in this case and the bot stops abruptly. I need a way to know that the corresponding api request has failed.I tried using try catch but it doesn't work.
Any link to the correct documentation or code example is welcome.
Related
I am trying to get my webhook to return a parsed JSON response from an API. I can log it on the console, but when I try to use app.tell; it gives me: TypeError: Cannot read property 'tell' of undefined. I am basically able to successfully get the data from the API, but I'm not able to use it in a response for some reason. Thanks for the help!
[Actions.API_TRY] () {
var request = http.get(url2, function (response) {
// data is streamed in chunks from the server
// so we have to handle the "data" event
var buffer = "",
data,
route;
response.on("data", function (chunk) {
buffer += chunk;
});
response.on("end", function (err) {
// finished transferring data
// dump the raw data
console.log(buffer);
console.log("\n");
data = JSON.parse(buffer);
route = data.routes[0];
// extract the distance and time
console.log("Walking Distance: " + route.legs[0].distance.text);
console.log("Time: " + route.legs[0].duration.text);
this.app.tell(route.legs[0].distance.text);
});
});
}
This looks to me to be more of a JavaScript scoping issue than anything else. The error message is telling you that app is undefined. Often in Actions, you find code like yours embedded in a function which is defined inside the intent handler which is passed the instance of your Actions app (SDK or Dialog Flow).
I need a bot that takes users input, uses it as an id to some third party rest api call and posts back a response. I've looked through Microsoft documentation but didn't find any examples on how to program that request-response process.
Any examples or useful links would be appreciated
Adding to Jason's answer, since you wanted to make a REST api call, take a look at this code :
public class RootDialog : IDialog<object>
{
public Task StartAsync(IDialogContext context)
{
context.Wait(MessageReceivedAsync);
return Task.CompletedTask;
}
private async Task MessageReceivedAsync(IDialogContext context, IAwaitable<object> result)
{
var activity = await result as Activity;
// User message
string userMessage = activity.Text;
try
{
using (HttpClient client = new HttpClient())
{
//Assuming that the api takes the user message as a query paramater
string RequestURI = "YOUR_THIRD_PARTY_REST_API_URL?query=" + userMessage ;
HttpResponseMessage responsemMsg = await client.GetAsync(RequestURI);
if (responsemMsg.IsSuccessStatusCode)
{
var apiResponse = await responsemMsg.Content.ReadAsStringAsync();
//Post the API response to bot again
await context.PostAsync($"Response is {apiResponse}");
}
}
}
catch (Exception ex)
{
}
context.Wait(MessageReceivedAsync);
}
}
Once you get the input from user, you can make a REST call and then after you get the response back from API, post it back to the user using the context.PostAsync method.
As Ashwin said, A bot is just a web API and you are just sending/receiving requests as you would with any web API. Below is some documentation that should help get you started.
Basic Overview
Create a bot with the Bot Connector service
API Reference
When I try to access external API's for my google action from my webhook which is hosted on firebase functions, I am getting back only partial content. It stops getting the whole data provided by the api.
For example I tried getting data from wikipedia api using this code
var request = require('request');//required module
//inside the function
request({ method: 'GET',url:'https://en.wikipedia.org/w/api.php?action=query&prop=extracts&format=json&explaintext=&exsectionformat=plain&redirects=&titles=11_September'},function (error, response, body)
{
if (!error && response.statusCode == 200)
{
console.log(body);
}
});
app.ask('data obtained');
Can anyone please help me out with this.
I am having a pay as you go firebase account that allows egress of data.
From just the code fragment, the problem is that you're replying to the user outside the callback from request(). This means that it is handled immediately and the function may end before the entire body has been received. Try something like this (I've also changed ask() to tell() since you're not prompting for another response here, and you shouldn't leave the microphone open.)
var request = require('request');//required module
//inside the function
request({ method: 'GET',url:'https://en.wikipedia.org/w/api.php?action=query&prop=extracts&format=json&explaintext=&exsectionformat=plain&redirects=&titles=11_September'},function (error, response, body)
{
if (!error && response.statusCode == 200)
{
console.log(body);
app.tell('data obtained');
}
});
The Servoy Framework does not support standard methods of calling a URL (eg: AJAX, JQuery, etc.). How does one go about posting a JSON object to a URL?
The Servoy JavaScript framework relies on the http plugin (included as aprt of Servoy) to make HTTP Posts.
Here is some sample code of how to post JSON to an API using Servoy. I have also included some basic error handling. Refer to the code comments for explanations of what the code is doing:
var sURL = 'http://www.example.com/myapipath/';
var oJSON = {"employees":[
{"firstName":"John", "lastName":"Doe"},
{"firstName":"Anna", "lastName":"Smith"},
{"firstName":"Peter", "lastName":"Jones"}
]};
var sClient = plugins.http.createNewHttpClient(); // HTTP plugin object
var sPoster = sClient.createPostRequest(sURL); // Post request object
sPoster.addHeader('content-type','application/json'); // required for JSON to be parsed as JSON
sPoster.setBodyContent(JSON.stringify(oJSON));
application.output('Executing HTTP POST request and waiting for response from '+sURL, LOGGINGLEVEL.INFO);
var sResponse = null;
var sResponseData = "";
var nHttpStatusCode = 0;
var sCaughtException = '';
try {
nHttpStatusCode = (sResponse = sPoster.executeRequest()).getStatusCode(); // POST JSON request to API
}
catch (e) {
// This handles the case when the domain called does not exist or the server is down, etc.
// in this case there will be no HTTP status code returned so we must handle this differently
// to prevent the Servoy application from crashing
sCaughtException = e['rhinoException'].getMessage();
if (-1 != sCaughtException.indexOf('TypeError: Cannot call method "getStatusCode"')) {
application.output('WARNING: Could not determine HTTP status code. The server might be down or its URL might be invalid.', LOGGINGLEVEL.WARNING);
}
else {
application.output('WARNING: caught unknown HTTP POST exception: '+sCaughtException, LOGGINGLEVEL.WARNING);
}
}
// SUCCESS!:
if (200 == nHttpStatusCode) { // HTTP Ready Status
sResponseData = sResponse.getResponseBody(); // Get the server's response text
application.output('Successful, response received from server:',LOGGINGLEVEL.INFO);
application.output(sResponseData, LOGGINGLEVEL.INFO);
// put your code to handle a successful response from the server here
}
else {
// insert your code to handle various standard HTTP error codes (404 page not found, 403 Forbidden, etc.)
}
Apigee's push notification is documented here.
http://apigee.com/docs/api-baas/content/introducing-push-notifications
I tried this with the js sdk that Apigee provides here http://apigee.com/docs/app-services/content/installing-apigee-sdk-javascript. It looks like only the client can generate a notification to itself?
But I have a scenario where I would like to push notifications to multiple clients from a nodejs job that runs once every hour. Something like this, but from the nodejs sdk not from the js sdk.
var devicePath = "devices;ql=*/notifications";
How do I do this?
As remus points out above, you can do this with the usergrid module (https://www.npmjs.com/package/usergrid).
You are basically trying to construct an API call that looks like this (sending a message by referencing a device):
https://api.usergrid.com/myorg/myapp/devices/deviceUUID/notifications?access_token= access_token_goes_here '{"payloads":{"androidDev":"Hello World!!"}}'
Or like this (sending a message by referencing a user who is connected to a device)
https://api.usergrid.com/myorg/myapp/users/fred/notifications?access_token=access_token_goes_here '{"payloads":{"androidDev":"Hello World!!"}}'
You can do this with code that looks something like this:
var options = {
method:'POST',
endpoint:'devices/deviceUUID/notifications',
body:{ 'payloads':{'androidDev':'Hello World!!'} }
};
client.request(options, function (err, data) {
if (err) {
//error - POST failed
} else {
//data will contain raw results from API call
//success - POST worked
}
});
or
var options = {
method:'POST',
endpoint:'users/fred/notifications',
body:{ 'payloads':{'androidDev':'Hello World!!'} }
};
client.request(options, function (err, data) {
if (err) {
//error - POST failed
} else {
//data will contain raw results from API call
//success - POST worked
}
});
Note: the second call, that posts to the users/username/notifications endpoint assumes that you have already made a connection between the user and their device (e.g. POST /users/fred/devices/deviceUUID).