webhook subscription php

[Luca Novali]

Goodmorning, I'm trying to develop a webhook subscription following strava official guide at https://developers.strava.com/docs/webhooks/.

My subscription creation request is like this:

curl -X POST https://www.strava.com/api/v3/push_subscriptions \

      -F client_id=xxxxx \

      -F client_secret=xxxxxxxxxxxxxxxxxxx \

      -F 'callback_url=https://myurl.com/strava/webhookListener.php' \

      -F 'verify_token=STRAVA'

but I get this result

"{\"message\":\"Bad Request\",\"errors\":[{\"resource\":\"PushSubscription\",\"field\":\"callback url\",\"code\":\"not verifiable\"}]}"

Obviously I tested my callback url and it's valid

I try this curl command both in php and in linux shell, but the result is the same

What am I doing wrong?

[Serhii Tsarikovskyi]

Hi, 

Do you return 200?

[Luca Novali]

I get this json message

"{\"message\":\"Bad Request\",\"errors\":[{\"resource\":\"PushSubscription\",\"field\":\"callback url\",\"code\":\"not verifiable\"}]}"

I suppose it's not 200...

[Serhii Tsarikovskyi]

your callback URL https://myurl.com/strava/webhookListener.php' should return 200 

[Vojtěch Hlaváček]

I put a callback url: https://virtualni-challenge-vh-3900225-strava.webovy-servis.com/ping-strava-activities it returns 200 but it is still the same.

čt 11. 11. 2021 v 12:47 odesílatel Serhii Tsarikovskyi <serhii.ts...@reface.ai> napsal:

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Vojtěch Hlaváček

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[Ben Coomes]

Hi  Vojtěch,

In addition to returning 200, your application must also respond with the expected payload within 2 seconds.

Strava will send a GET request to your subscription endpoint with a query parameter named 'hub.challenge'. Your application must return a response which includes the value of that parameter in the format indicated by the docs. Note that the content type header of your response must also be set to 'application/json'. 

I hope this helps, 
Ben

[Luca Novali]

Goodmorning, I suppose finally I've completed a webhook subscription and I have an id like this  "{\"id\":xxxxxx}"
I was able also delete this subscription (but I still problems with "view subscription" method).
Anyway, at the moment the main question is: what I need to do with this subscrition id?
I really completed the webhook subscription process?
Now should I receive some messages from Strava when my Strava user upload a new activity?
In which page strava should send my activity? I'm sorry for these question but official documentation is not exaustive.

thanks a lot

[Ben Coomes]

I haven't found a great use for the subscription ID yet. You don't need it to receive events. 

Once you've created a subscription successfully, an event will be sent to the endpoint you specified whenever a Strava user who has authorized your application uploads or modifies an activity. So, even for you, you must authorize your application so that it appears in the 'My Apps' section of your profile.

Note that if you delete your subscription, you won't get any events. In that case, you can create a new one again.

[Luca Novali]

Hello Ben!
Excuse me but I'll try to analyze your answer to ensure I've understand your words:

" Once you've created a subscription successfully, an event will be sent to the endpoint you specified whenever a Strava user who has authorized your application uploads or modifies an activity. So, even for you, you must authorize your application so that it appears in the 'My Apps' section of your profile."

"Once you've created a subscription successfully": if I have a subscription ID, I suppose I've created a subscription successfully. isn't it?

"an event will be sent to the endpoint you specified": endpoint is the url I've specified when I created the subscription? How can I receive these events? I suppose I should receive a json text. I have a php page. Following syntax is correct? $json = file_get_contents('php://input');

" whenever a Strava user who has authorized your application uploads or modifies an activity.": I authorized strava and I need to get activities. I don't want to upload or modify existing activities. I only need to receive running or cycling activities data with the entire set of informations (gps track points, hr, power, laps, segments,...)

Thank you so much.

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[Ben Coomes]

Sure thing! I think you understand correctly. 

"How can I receive these events? I suppose I should receive a json text. I have a php page. Following syntax is correct? $json = file_get_contents('php://input');"

  Strava will POST to the URL you set when creating the subscription. So, if that URL is https://myStravaApp.com/callback.php, then Strava will POST to that URL and the body will be something like
{ "aspect_type": "update", "event_time": 1516126040, "object_id": 1360128428, "object_type": "activity", "owner_id": 134815, "subscription_id": 120475, "updates": { "title": "Messy" } }. See https://developers.strava.com/docs/webhooks/.
Using the example above, you could then send a subsequent request to get the details for the activity with ID of 1360128428.

 I authorized strava and I need to get activities. I don't want to upload or modify existing activities. I only need to receive running or cycling activities data with the entire set of informations (gps track points, hr, power, laps, segments,...)

If getting details on existing activities is your goal, then a subscription might not be the best match for your app. Subscriptions are helpful for when you want your app to take some action for every new (or modified) activity, for example, to set a weather report in the description. For getting existing activities, I would look at calling the API directly. You can call /athlete/activities to get a list of activities. The athlete for which the request will return results is based on the access token you pass in the request. Then, you can call /activities/{id} to get the details for a single activity by the activity ID. You don't need a subscription for either of those calls, only an access token.