Notice: This page requires JavaScript to function properly.
Please enable JavaScript in your browser settings or update your browser.Lære Handling Exceptions caused by HTTP Request | Asynchronous Programming and Introduction to Web Services
Introduction to .NET with C#
course content

Kursusindhold

Introduction to .NET with C#

Introduction to .NET with C#

1. Introduction
What is the .NET Platform exactly?Creating a Console ApplicationTaking input from the UserTask - Building a Simple CalculatorDealing with Exceptions caused by User InputTask - Improving the CalculatorReading FilesWriting FilesTask - File Based Calculator
2. Asynchronous Programming and Introduction to Web Services
What is Asynchronous Programming?Implementing an Asynchronous MethodTask - Asynchronously Reading FilesIntroduction to APIsMaking a GET RequestTask - Using an APIHandling Exceptions caused by HTTP RequestTask - Exception Handling for API Response
3. Introduction to Databases with .NET
What is a Database?Structure of a Relational DatabaseSetting Up A MySQL ServerConnecting to the MySQL ServerTask - Writing Connection StringsExecuting CommandsTask - Executing MySQL CommandsMySqlCommand MethodsTask - Connecting to a MySQL Database and Executing Commands
4. CRUD Operations with MySQL
Introduction to CRUD OperationsInstalling & Using MySQL WorkbenchCREATE - Part ITask - Using CREATECREATE - Part IITask - Using INSERTReadTask - Using SELECTUpdateTask - Using UPDATEDelete - Part IDelete - Part IITask - Using DELETE
5. Optimizing Database Operations
Stored ProceduresTask - Executing Stored ProceduresDataReader vs DataSetDataAdapter & DataSetTask - Reading Tables using MySqlDataAdapterWhat's Next?

book
Handling Exceptions caused by HTTP Request

Important Points:

  • Runtime errors can occur when making API requests. The most notable case is if the URL / URI provided is invalid;

  • We use try-catch blocks to enclose the GetAsync method to make it safe;

  • The HttpResponseMessage class has an IsSuccessStatusCode attribute, which has the value true in case the API successfully responds with the requested data;

  • HttpResponseMessage also has a StatusCode attribute which represents the response status code. You can learn more about status codes here;

  • HTTP status codes are three-digit numbers returned by a server in response to a client's request made to a website or web server. They provide information about the outcome of the request and help troubleshoot issues.

question mark

What methods do we use to make an API request safer?

Select the correct answer

Var alt klart?

Hvordan kan vi forbedre det?

Tak for dine kommentarer!

Sektion 2. Kapitel 7

Spørg AI

expand
ChatGPT

Spørg om hvad som helst eller prøv et af de foreslåede spørgsmål for at starte vores chat

course content

Kursusindhold

Introduction to .NET with C#

Introduction to .NET with C#

1. Introduction
What is the .NET Platform exactly?Creating a Console ApplicationTaking input from the UserTask - Building a Simple CalculatorDealing with Exceptions caused by User InputTask - Improving the CalculatorReading FilesWriting FilesTask - File Based Calculator
2. Asynchronous Programming and Introduction to Web Services
What is Asynchronous Programming?Implementing an Asynchronous MethodTask - Asynchronously Reading FilesIntroduction to APIsMaking a GET RequestTask - Using an APIHandling Exceptions caused by HTTP RequestTask - Exception Handling for API Response
3. Introduction to Databases with .NET
What is a Database?Structure of a Relational DatabaseSetting Up A MySQL ServerConnecting to the MySQL ServerTask - Writing Connection StringsExecuting CommandsTask - Executing MySQL CommandsMySqlCommand MethodsTask - Connecting to a MySQL Database and Executing Commands
4. CRUD Operations with MySQL
Introduction to CRUD OperationsInstalling & Using MySQL WorkbenchCREATE - Part ITask - Using CREATECREATE - Part IITask - Using INSERTReadTask - Using SELECTUpdateTask - Using UPDATEDelete - Part IDelete - Part IITask - Using DELETE
5. Optimizing Database Operations
Stored ProceduresTask - Executing Stored ProceduresDataReader vs DataSetDataAdapter & DataSetTask - Reading Tables using MySqlDataAdapterWhat's Next?

book
Handling Exceptions caused by HTTP Request

Important Points:

  • Runtime errors can occur when making API requests. The most notable case is if the URL / URI provided is invalid;

  • We use try-catch blocks to enclose the GetAsync method to make it safe;

  • The HttpResponseMessage class has an IsSuccessStatusCode attribute, which has the value true in case the API successfully responds with the requested data;

  • HttpResponseMessage also has a StatusCode attribute which represents the response status code. You can learn more about status codes here;

  • HTTP status codes are three-digit numbers returned by a server in response to a client's request made to a website or web server. They provide information about the outcome of the request and help troubleshoot issues.

question mark

What methods do we use to make an API request safer?

Select the correct answer

Var alt klart?

Hvordan kan vi forbedre det?

Tak for dine kommentarer!

Sektion 2. Kapitel 7
Vi beklager, at noget gik galt. Hvad skete der?
some-alt