Service Error Handling With Redux-Saga

We have been talking about Service Error Handling with Redux-Saga which is a cool way yet not only for error handling but the application itself with side effects.

Redux-Saga is a library that makes it very easy to control the application and easily adapts to the application architecture.

If you don’t know what **Redux-Saga yet! Keep reading… Redux-saga is a redux middleware **and allows you to take actions by listening to redux actions. We can run, stop and cancel it by an action dispatch.

Yes by only dispatching an action will make you control your application outside of your components! And you will have the chance to manipulate/transform your data in SAGAS!! Very concise.

Regarding cancellation, I desire to share that it attracts our attention more besides starting and stopping actions that can be cancelled.

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With the help of Redux-Saga and try{}catch{}block, We will read the status codes of the services “200, 300, 400, 500” instead of exceptions thrown by functions, and briefly talk about how our applications take advantage of this call management.

try {

} catch {
}

This is an approach that allows you to manage your services with only one Saga and take action accordingly, the rest is under your control! Perform anything you desire. Now! We will proceed with handling error responses returned from services.

The example may or may not meet your expectations, so bits of advice are welcome :)

Let’s Go:

For a user who logs into your application, you can listen to the login service and dispatch an action you want when this service resolves (async).

So what would you do when the service resolves?

• You can allow the user to login to your application and redirect her to another path.
• You can show users an informative modal/flag/notification about the ERROR returned from the service … “Your password is Wrong. Etc”
• You can manage the side effects accessing local storage, calling a different API. Etc

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Channels in Redux-saga

What are the channels? Are they useful to us in day to day programming? We’ll be going through this blog that channels are played really a major role in redux-saga.

Channels:
Channels are of 3 types which are used to perform 3 different things, here I will brief you about those channels here but will explain in detail a bit later.

• Action Channels: Action channel is a buffer, it stockpiles actions which sagas can consume one by one.
• Generic Channels: Generally, we use Generic channels to communicate between two sagas. This can be done through the Actions but the idea of a channel is that communication is limited interest in sagas without other sagas being privy to that information.
• Event Channels: Event Channel is completely different used to wrap outside event sources. we can consider web socket as a good example of the Event channel.

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Handle Multiple Sagas with Call & All Effect in Redux Saga

In this video, I am going to explain that how you can handle multiple sagas with the help of call and all effect in Redux Saga.

#redux #redux saga.

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Azure Data Catalog: A Quick Introduction to Data Handling Service Around

What is Azure Data Catalog?

Azure Data Catalog is a Data Catalog cloud service of Microsoft using a crowdsourced approach. It provides an inventory of data used for discovering and understanding the data sources. Microsoft Azure is a Software as a Service (SaaS) application.

“Build Confidence in Azure Data Catalog even having more than millions of accounts”

**Source: **Gartner, Inc

Azure Data Catalog enhances old investments’ performance, adding metadata and notation around the Azure environment’s data. It informs about the Data sources which we have discovered or which we already have. It expresses documentation and describes the schema of the data source. The data source location and a copy of the metadata are present in the Azure Data Catalog. The user can access it easily when needed, and the indexing of metadata helps discover data through a search.### What is Azure Data Catalog?

Azure Data Catalog is a Data Catalog cloud service of Microsoft using a crowdsourced approach. It provides an inventory of data used for discovering and understanding the data sources. Microsoft Azure is a Software as a Service (SaaS) application.

“Build Confidence in Azure Data Catalog even having more than millions of accounts”

**Source: **Gartner, Inc

Azure Data Catalog enhances old investments’ performance, adding metadata and notation around the Azure environment’s data. It informs about the Data sources which we have discovered or which we already have. It expresses documentation and describes the schema of the data source. The data source location and a copy of the metadata are present in the Azure Data Catalog. The user can access it easily when needed, and the indexing of metadata helps discover data through a search.

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