What is the main purpose of 'Accelerate Polling' in Heroku Connect when mapping Salesforce objects to heroku.
Thanks in advance.
Accelerate Polling: Use this option refer if you need to sync changes instantly on change. This option should be enabled only if required in some scenarios.
Related
Can someone explain me why we need the Atlas?
If I have Heroku which gives an easier access to cloud (PaaS), then why we need MongoDB Atlas?
Some sources say that we can connect Heroku with Atlas, but why we need that? And can please someone explain me the difference, because it seems I do not understand it completely.
Will be very thankful to everyone. Articles will also be good.
Heroku is a PAAS where you can deploy your applications. Multiple languages are supported and the development experience is great (deploy from Git or using Docker, plenty of examples and documentation).
Typically your application needs a data store to persist the data, Heroku offers few options (ie Postgres) but no more MongoDB. An alternative is to use Atlas where you can define your MongoDB cluster and databases.
Both Heroku and Atlas have a free-tier so you can run both the application and the database without cost. As your database grows you might need to buy a different subscription, this applies to Heroku too if you require more resources or for example no downtime (Heroku Free tier sends the Dyno to sleep after 30 min inactivity).
A good article to use Heroku with Atlas is Detaching from mLab
I'm following the instructions in the Heroku Postgres docs for creating an external application that connects to Heroku Postgres for its data layer. The instructions mention that the credentials are automatically rotated and I must handle this myself.
I read more docs to learn about webhooks existing to help notify the rest of your system that changes have happened in your Heroku services. This made sense to me to be an area where the Heroku devs would have implemented this. There must be a webhook that exists that I could use to be notified when the credential rotation happens. I found that there was the api:addon webhook which had the update event. I tested this webhook, expecting this to be what I was looking for, but I found that it was not fired upon credential rotation. It was only fired when I provisioned or deleted more Heroku Postgres add-ons.
Since the webhook I need doesn't exist, I coded a workaround where I expect a PostgreSQL library auth error to be thrown while my AWS Lambda executes. If an error is thrown, I assume it's from the rotation and I have the still running Lambda function fetch new credentials using the Heroku API and try the PostgreSQL query again, at which point it works unless there are other errors. I tested this while manually rotating my credentials and it worked okay, but it's kind of ugly code. See here for a detailed example.
So at this point, I'm wondering if the webhook I'm looking for does exist and I just wasn't able to find it. Or, if it doesn't exist, I would like to request it as a new feature. I understand that the Heroku team may not want people picking their add-ons a la carte, and they want people to use the entire Heroku platform, but I think it would add a lot of value to the Heroku platform. Personally, I've enjoyed getting into more and more cloud services as I learn since I'm usually able to choose them a la carte. For example, AWS doesn't forbid me from only using S3 and nothing else from them. They do as much as they can to make it easy for me to link my applications to it, no matter what other cloud services I use.
I contacted Heroku directly to ask if this type of webhook existed and I received a useful response from them:
There isn't a webhook specifically for credential rotations, although
with a bit of logic you can sort of recreate the same thing. Whenever
you Postgres credentials rotate, it will trigger a new release, which
does trigger a webhook. You can use that to inspect the release via
the API to determine if the values changed.
I'm a hobby developer that use Parse.com as my database and website host, as Facebook is going to shutdown Parse.com, I'm now looking for alternative Parse server.
I use Parse's Cloud Code Hosting to build Dynamic Web App, and Parse itself to store data collected from the website I've build, with custom Cloud Code to help getting and managing data. I've build a Windows Phone app for myself to manage the data I've collected too.
Is there any alternative server that has my requirement?
Dynamic Website
Database host
Custom Cloud Code (with BeforeSave and AfterSave trigger)
with Windows Phone SDK (or REST API if doesn't have)
Very thank you for helping me!
Try out Hasura.
Hasura (http://www.hasura.io): Hasura is a neat PaaS + BaaS solution. It is now competing with Firebase, Kinvey, Heroku et al. There is a full comparison page here: Compare | Hasura (https://compare.beta.hasura.io) . The difference majorly lies in infra ownership as well as no tech lock-in due to open-source components(like docker, kubernetes,postgres) building the major chunk of the platform. Check it out. There is also an option to explore (https://explore.beta.hasura.io/) Hasura by building your own blog web app and a todo app in under 15 mins.
Hasura should fit in perfectly for your needs.
DISCLAIMER : Hasura Engineer here.
I'm using Simbla website application development. It doesn't support all of your requirments but it has great UI builder with a backend parse database.
You can try using the parse open source server it has cloud code and you can use a custom database with it.
I have Meteor application which is run on Heroku platform using 1 dyno. When I increase number of dynos it stops working, reporting some problems with XHR (ERROR 404) on client side.
Does anybody successfully run Meteor app on two or more Heroku dynos? If so, what should I do in order to get it working?
No, unfortunately Meteor does not work on Heroku with more than one dyno. Meteor needs session affinity, which Heroku does not currently offer.
Meteor needs session affinity: Running meteor in a cluster and real-time changes
Heroku does not support session affinity: https://devcenter.heroku.com/articles/intro-for-java-developers
If you want a SaaS hosting provider that supports Meteor and can scale to multiple dynos using session affinity, there is now a CloudBees buildpack which looks promising:
https://github.com/CloudBees-community/meteor-clickstart
Heroku now supports session affinity, which allows it to work with Meteor. It's in labs at the time of writing this, so you'll have to enable it.
https://devcenter.heroku.com/articles/session-affinity
Well, Session affinity (or something similar) appears to be in the roadmap, at the very least. So, the developers anticipating addressing the issue by the time they release version 1.0.
https://trello.com/board/meteor-roadmap/508721606e02bb9d570016ae
Has anyone been able to restore a Redis DB on Heroku? They have instructions for regular accounts, but the "Edit" option is not available through the Heroku dashboard.
http://support.redistogo.com/kb/info/restore-from-a-backup
I beleive we worked on this through the Redis To Go support site I will still answer for others. This feature is only for Direct accounts, Redis To Go is working on releasing the same options for heroku add-on accounts, but for now switching to a direct account is fastest. If you are hooked on heroku, making a support request support.redistogo.com to have your back-up uploaded by the support staff is also an option for you!
-Morgan