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Data Ingestion with Python Cookbook

You're reading from   Data Ingestion with Python Cookbook A practical guide to ingesting, monitoring, and identifying errors in the data ingestion process

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Product type Paperback
Published in May 2023
Publisher Packt
ISBN-13 9781837632602
Length 414 pages
Edition 1st Edition
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Author (1):
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Gláucia Esppenchutz Gláucia Esppenchutz
Author Profile Icon Gláucia Esppenchutz
Gláucia Esppenchutz
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Table of Contents (17) Chapters Close

Preface 1. Part 1: Fundamentals of Data Ingestion
2. Chapter 1: Introduction to Data Ingestion FREE CHAPTER 3. Chapter 2: Principals of Data Access – Accessing Your Data 4. Chapter 3: Data Discovery – Understanding Our Data before Ingesting It 5. Chapter 4: Reading CSV and JSON Files and Solving Problems 6. Chapter 5: Ingesting Data from Structured and Unstructured Databases 7. Chapter 6: Using PySpark with Defined and Non-Defined Schemas 8. Chapter 7: Ingesting Analytical Data 9. Part 2: Structuring the Ingestion Pipeline
10. Chapter 8: Designing Monitored Data Workflows 11. Chapter 9: Putting Everything Together with Airflow 12. Chapter 10: Logging and Monitoring Your Data Ingest in Airflow 13. Chapter 11: Automating Your Data Ingestion Pipelines 14. Chapter 12: Using Data Observability for Debugging, Error Handling, and Preventing Downtime 15. Index 16. Other Books You May Enjoy

Reading CSV and JSON Files and Solving Problems

When working with data, we come across several different types of data, such as structured, semi-structured, and non-structured, and some specifics from other systems’ outputs. Yet two widespread file types are ingested, comma-separated values (CSV) and JavaScript Object Notation (JSON). There are many applications for these two files, which are widely used for data ingestion due to their versatility.

In this chapter, you will learn more about these file formats and how to ingest them using Python and PySpark, apply the best practices, and solve ingestion and transformation-related problems.

In this chapter, we will cover the following recipes:

  • Reading a CSV file
  • Reading a JSON file
  • Creating a SparkSession for PySpark
  • Using PySpark to read CSV files
  • Using PySpark to read JSON files
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