Informatica CSV Connector

In this article you will learn how to integrate CSV data to Informatica without coding in just a few clicks (live / bi-directional connection to CSV). CSV Connector can be used to extract and output CSV data from Web URL/REST API web service calls (Web URL) or direct CSV String (variables or DB columns) or local CSV files data..

Using CSV Connector you will be able to connect, read, and write data from within Informatica. Follow the steps below to see how we would accomplish that.

Download Help File Buy

Driver mentioned in this article is part of ODBC PowerPack which is a collection of high-performance Drivers for various API data source (i.e. REST API, JSON, XML, CSV, Amazon S3 and many more). Using familiar SQL query language you can make live connections and read/write data from API sources or JSON / XML / CSV Files inside SQL Server (T-SQL) or your favorite Reporting (i.e. Power BI, Tableau, Qlik, SSRS, MicroStrategy, Excel, MS Access), ETL Tools (i.e. Informatica, Talend, Pentaho, SSIS). You can also call our drivers from programming languages such as JAVA, C#, Python, PowerShell etc.

If you are new to ODBC and ZappySys ODBC PowerPack then check the following links to get started.

Read/Write CSV data in Informatica

Introduction

JSON / REST API is becoming more and more popular each day as everyone embrace cloud-centric services. This article is primarily focused on Informatica users who want to access CSV data or may be other API Integration in Informatica. However many tips and techniques described in this article will help you to understand how to integrate XML SOAP / JSON / REST API in other ETL / Reporting apps such as Tableau, Power BI, SSRS, Talend, Excel and many more.

After going through this article you will learn how to Read CSV / JSON / REST API data in Informatica and understand the concept of JSON / REST API. We will go through many screenshots and step-by-step examples to demonstrate JSON File or REST API integration in Informatica PowerCenter.

XML / JSON can come from a local file or REST API service (internal or public) so we will include both examples in this article (i.e. Read JSON files in Informatica, Import REST API in Informatica). So let’s get started. Next article will focus on how to write data to API in Informatica (POST / PUT data)

Requirements

This article assumes that you have full filled following basic requirements.

Download Install ZappySys ODBC PowerPack (API Driver for CSV included)
Install Informatica PowerCenter Client Tools (e.g. Workflow and Mapping Designers)
Access to a Relational database such as SQL Server (or use any of your choice e.g. Oracle, MySQL, DB2 ). If nothing available then you can use flat file target.

High level Steps for Import CSV data using Informatica (Read CSV API data)

Before we dive deep to learn how to load CSV data in Informatica (i.e. CSV to SQL Table), Here the summary of high-level steps you need to perform to import JSON Files or REST API in Informatica.

Download and Install ZappySys API Driver (for connecting to CSV)
Create ODBC DSN using ZappySys API driver and choose CSV Connector during Wizard
Create Relational > ODBC Connection in Informatica Workflow designer (Point to DSN we created in the previous step)
Import JSON Source Definition in the Informatica Mapping Designer > Sources Tab
Import Target Table Definition in the Informatica Mapping Designer > Targets Tab
Create source to target mapping in Mappings tab
Save mapping (name m_API_to_SQL_Load )
Create Session using the mapping we created in the previous step
Save Workflow and execute to load CSV data into SQL Table. Verify your data and log.
Loading CSV data to SQL Table in Informatica (Import REST API or JSON Files)

Video Tutorial – Read any API / JSON data in Informatica (Load CSV to SQL Table)

Below video is not about CSV API but its showing API access in general (for any API). By watching following ~5 min video can learn steps listed in this article to load JSON API data into SQL Server Table using ZappySys JSON Driver. You can go though full article to learn many useful details not covered in this video.

Getting Started – Import CSV to SQL Server in Informatica

Now let’s get started. For example purpose, we will read data from CSV and load data into SQL Server Table using Informatica Workflow.

Create ODBC Data Source (DSN) based on ZappySys CSV Driver

To get data from Csv using Informatica we first need to create a DSN (Data Source) which will access data from Csv. We will later be able to read data using Informatica. Perform these steps:

Install ZappySys ODBC PowerPack.
Open ODBC Data Sources (x64):
Create a User Data Source (User DSN) based on ZappySys CSV Driver

ZappySys CSV Driver

You should create a System DSN (instead of a User DSN) if the client application is launched under a Windows System Account, e.g. as a Windows Service. If the client application is 32-bit (x86) running with a System DSN, use ODBC Data Sources (32-bit) instead of the 64-bit version.
Select Url or File.

Read CSV API in Informatica
- Paste the following Url. In this example, We are using Zip format CSV File URL, but you need to refer your CSV File/URL.
  https://zappysys.com/downloads/files/test/cust-1.csv.zip
  Click on Test Connection button to view whether the Test Connection is SUCCESSFUL or Not.
Read CSV File in Informatica
- You can use pass single file or multiple file path using wildcard pattern in path and you can use select single file by clicking [...] path button or multiple file using wildcard pattern in path.
```
Note: If you want to operation with multiple files then use wild card pattern as below
(when you use wild card pattern in source path then system will treat target path as folder regardless you end with slash)

C:\SSIS\Test\reponse.csv (will read only single reponse.csv file)
C:\SSIS\Test\j*.csv (all files starting with file name j)
C:\SSIS\Test\*.csv (all files with .csv Extension and located under folder subfolder)
```
  Click on Test Connection button to view whether the Test Connection is SUCCESSFUL or Not.
Once you configured a data source, you can preview data. Hit Preview tab, and use similar settings to preview data:
Click OK to finish creating the data source
That's it; we are done. In a few clicks we configured the read the CSV data using ZappySys CSV Connector.

Create Connection in Informatica Workflow Designer

Once you create DSN using API Driver our next step is to define a connection for CSV source in Informatica PowerCenter Workflow designer.

Open Workflow designer [W] icon
Goto Connections > Relational

Create a new connection for CSV in Informatica
Click New and select ODBC

Select ODBC connection type in Informatica (Using ZappySys API ODBC DSN)
Now on the ODBC connection setup enter connection name, some fake userid / password (this is a required field but its ignored by JSON Driver)
In the Connection String field enter the exact same name of DSN (Open ODBC Data Sources UI to confirm)

Configure CSV connection in Informatica for REST API – Using ZappySys API Driver
Click OK to close the connection properties.

That’s it. Now we ready to move to next step (define source and target in Mapping Designer).

Import CSV Source Definition in Informatica Mapping Designer

Now let’s look at steps to import CSV table definition.

Open Informatica Mapping Designer (Click [D] icon)
Click on Source Icon to switch to Sources designer
From the top menu > Click on Sources > Import from Database …

Import CSV Source definition in Informatica Mapping Designer (JSON file or REST API)
Select ODBC data source from the dropdown (Find out DSN we created earlier to use as JSON Source)
Click Connect button to get a list of tables. Any array node is listed as a table. Also, you will see array node with parent columns (e.g. value_with_parent). You may get some warning like below but they are harmless so just ignore by clicking OK.

DLL name entry missing from C:\Informatica\PowerCenter8.6.1\client\bin\powrmart.ini Section = ODBCDLL Entry = ZappySys JSON Driver
—————————————————-
Using EXTODBC.DLL to support ZappySys JSON Driver. For native support of ZappySys JSON Driver make an entry in the .ini file.

Select CSV Source Table in Informatica Mapping Designer (JSON file or REST API)
Select Table you wish to get (You can filter rows by custom SQL query. We will see later in this article how to do)
Optionally once table structure is imported you can rename it

Rename imported table definition in Informatica Source Designer
That’s it, we are now ready to perform similar steps to import Target table structure in the next section.

Import SQL Server Target Definition in Informatica Mapping Designer

Now let’s look at steps to import Target table definition (very similar to the previous section, the only difference is this time we will select DSN which points to SQL Server or any other Target Server).

Now lets look at steps to import target table definition in Informatica mapping designer.

In the Mapping Designer, Click on Target Icon to switch to Target designer
From the top menu > Click on Targets > Import from Database …
Select DSN for your Target server (if DSN doesn’t exist then create one by opening ODBC Sources just like we created one for JSON API source (see the previous section about creating DSN).

Import target Table Definition in informatica
Enter your userid , password and Schema name and click Connect to see tables
Select Table name to and click OK import definition.

Import Target SQL Table Definition in Informatica – Select table from the list

Create Source to Target Mapping in Informatica (Import JSON to SQL Server)

Once you have imported source and target table definition, we can create mapping and transformation to load data from JSON to SQL Table.

First open Mapping Designer (Click [D] icon)
Drag JSON Source from sources folder
Drag SQL Table from Targets folder
Map desired columns from Source to target

Define Source to Target mapping for CSV to SQL Table load in Informatica
For certain columns you may have to do datatype conversion. For example to convert OrderDate form nstring to DataTime you have to use Expression Transform like below and map it to target. In below example, our JSON has date format (e.g. 2018-01-31 12:00:00 AM ). To import this to DateTime field in SQL server we need to convert it using TO_DATE function. Use double quotes around T to make this format working.
```
TO_DATE(OrderDate,'YYYY-MM-DD H12:MI:SS AM')

 --For ISO use below way
                TO_DATE(OrderDate,'YYYY-MM-DD"T"HH24:MI:SS')
```
Informatica CSV to SQL Table Mapping – Datatype conversion (nstring to datetime)
Once you done with mapping save your mapping and name it (i.e. m_Api_To_SQL)
Now lets move to next section to create workflow.

Create Workflow and Session in Informatica

Now the final step is to create a new workflow. Perform following steps to create workflow which with a session task to import JSON data into SQL table.

Open workflow designer by click [W] icon.
Launch new workflow creation wizard by click Workflow top menu > Wizard
name your workflow (e.g. wf_Api_Tp_Sql_Table_Import)

Creating Informatica Workflow – Wizard UI (Import CSV data to SQL Table)
Finish the wizard and double-click the Session to edit some default properties.
First change Error settings so we fail session on error (By default its always green)

Fail Informatica Session on error (CSV data to SQL Load)
Select JSON connection for Source

Select CSV Source Connection in Informatica – Load CSV data to SQL Table
Change default Source query if needed. You can pass parameters to this query to make it dynamic.

Modify CSV Source SQL query – Pass parameters, change URL, set filter etc
Select Target connection of SQL Target Table

Select SQL Target Connection in Informatica – Load CSV data to SQL Table
Save workflow
That’s it. We ready to run our first workflow to load JSON data to SQL.

Execute Workflow and Validate Log in Informatica

Now once you are done with your workflow, execute it to see the log.

Loading JSON data to SQL Table in Informatica (Import REST API or JSON Files)

Loading CSV data to SQL Table in Informatica (Import REST API or JSON Files)

POST data to CSV in Informatica

There will be a time when you like to send Source data to REST API or SOAP Web Service. You can use below Query for example. For detailed explanation on how to POST data in Informatica check this article.

Video Tutorial – How to POST data to REST API in Informatica

Here is detailed step by step video on REST API POST in informatica PowerCenter

Keywords

Configuring pagination in the CSV Driver

ZappySys CSV Driver equips users with powerful tools for seamless data extraction and management from REST APIs, leveraging advanced pagination methods for enhanced efficiency. These options are designed to handle various types of pagination structures commonly used in APIs. Below are the detailed descriptions of these options:

Page-based Pagination: This method works by retrieving data in fixed-size pages from the Rest API. It allows you to specify the page size and navigate through the results by requesting different page numbers, ensuring that you can access all the data in a structured manner.
Offset-based Pagination: With this approach, you can extract data by specifying the starting point or offset from which to begin retrieving data. It allows you to define the number of records to skip and fetch subsequent data accordingly, providing precise control over the data extraction process.
Cursor-based Pagination: This technique involves using a cursor or a marker that points to a specific position in the dataset. It enables you to retrieve data starting from the position indicated by the cursor and proceed to subsequent segments, ensuring that you capture all the relevant information without missing any records.
Token-based Pagination: In this method, a token serves as a unique identifier for a specific data segment. It allows you to access the next set of data by using the token provided in the response from the previous request. This ensures that you can systematically retrieve all the data segments without duplication or omission.

Utilizing these comprehensive pagination features in the ZappySys CSV Driver facilitates efficient data management and extraction from REST APIs, optimizing the integration and analysis of extensive datasets.

For more detailed steps, please refer to this link: How to do REST API Pagination in SSIS / ODBC Drivers

ZappySys Authentication

ZappySys offers various authentication methods to securely access data from various sources. These authentication methods include OAuth, Basic Authentication, Token-based Authentication, and more, allowing users to connect to a wide range of data sources securely.

ZappySys Authentication is a robust system that facilitates secure access to data from a diverse range of sources. It includes a variety of authentication methods tailored to meet the specific requirements of different data platforms and services. These authentication methods may involve:

OAuth: ZappySys supports OAuth for authentication, which allows users to grant limited access to their data without revealing their credentials. It's commonly used for applications that require access to user account information.
Basic Authentication: This method involves sending a username and password with every request. ZappySys allows users to securely access data using this traditional authentication approach.
Token-based Authentication: ZappySys enables users to utilize tokens for authentication. This method involves exchanging a unique token with each request to authenticate the user's identity without revealing sensitive information.

By implementing these authentication methods, ZappySys ensures the secure and reliable retrieval of data from various sources, providing users with the necessary tools to access and integrate data securely and efficiently. For more comprehensive details on the authentication process, please refer to the official ZappySys documentation or reach out to their support team for further assistance.

For more details, please refer to this link: ZappySys Connections

Create Custom Store Procedure in ZappySys Driver

You can create procedures to encapsulate custom logic and then only pass handful parameters rather than long SQL to execute your API call.

Steps to create Custom Store Procedure in ZappySys Driver. You can insert Placeholders anywhere inside Procedure Body. Read more about placeholders here

Go to Custom Objects Tab and Click on Add button and Select Add Procedure:
Enter the desired Procedure name and click on OK:
Select the created Store Procedure and write the your desired store procedure and Save it and it will create the custom store procedure in the ZappySys Driver:
Here is an example stored procedure for ZappySys Driver. You can insert Placeholders anywhere inside Procedure Body. Read more about placeholders here
```
CREATE PROCEDURE [usp_get_orders]
    @fromdate = '<<yyyy-MM-dd,FUN_TODAY>>'
 AS
    SELECT * FROM Orders where OrderDate >= '<@fromdate>';
```
That's it now go to Preview Tab and Execute your Store Procedure using Exec Command. In this example it will extract the orders from the date 1996-01-01:
```
Exec usp_get_orders '1996-01-01';
```
Let's generate the SQL Server Query Code to make the API call using store procedure. Go to Code Generator Tab, select language as SQL Server and click on Generate button the generate the code.
As we already created the linked server for this Data Source, in that you just need to copy the Select Query and need to use the linked server name which we have apply on the place of [MY_API_SERVICE] placeholder.
```
SELECT * FROM OPENQUERY([MY_API_SERVICE], 'EXEC usp_get_orders @fromdate=''1996-07-30''')
```
Now go to SQL served and execute that query and it will make the API call using store procedure and provide you the response.

Create Custom Virtual Table in ZappySys Driver

ZappySys API Drivers support flexible Query language so you can override Default Properties you configured on Data Source such as URL, Body. This way you don't have to create multiple Data Sources if you like to read data from multiple EndPoints. However not every application support supplying custom SQL to driver so you can only select Table from list returned from driver.

If you're dealing with Microsoft Access and need to import data from an SQL query, it's important to note that Access doesn't allow direct import of SQL queries. Instead, you can create custom objects (Virtual Tables) to handle the import process.

Many applications like MS Access, Informatica Designer wont give you option to specify custom SQL when you import Objects. In such case Virtual Table is very useful. You can create many Virtual Tables on the same Data Source (e.g. If you have 50 URLs with slight variations you can create virtual tables with just URL as Parameter setting.

Go to Custom Objects Tab and Click on Add button and Select Add Table:
Enter the desired Table name and click on OK:
And it will open the New Query Window Click on Cancel to close that window and go to Custom Objects Tab.
Select the created table, Select Text Type AS SQL and write the your desired SQL Query and Save it and it will create the custom table in the ZappySys Driver:
Here is an example SQL query for ZappySys Driver. You can insert Placeholders also. Read more about placeholders here
```
SELECT
  "ShipCountry",
  "OrderID",
  "CustomerID",
  "EmployeeID",
  "OrderDate",
  "RequiredDate",
  "ShippedDate",
  "ShipVia",
  "Freight",
  "ShipName",
  "ShipAddress",
  "ShipCity",
  "ShipRegion",
  "ShipPostalCode"
FROM "Orders"
Where "ShipCountry"='USA'
```
That's it now go to Preview Tab and Execute your custom virtual table query. In this example it will extract the orders for the USA Shipping Country only:
```
SELECT * FROM "vt__usa_orders_only"
```
Let's generate the SQL Server Query Code to make the API call using store procedure. Go to Code Generator Tab, select language as SQL Server and click on Generate button the generate the code.
As we already created the linked server for this Data Source, in that you just need to copy the Select Query and need to use the linked server name which we have apply on the place of [MY_API_SERVICE] placeholder.
```
SELECT * FROM OPENQUERY([MY_API_SERVICE], 'EXEC [usp_get_orders] ''1996-01-01''')
```
Now go to SQL served and execute that query and it will make the API call using store procedure and provide you the response.

Conclusion

In this article we discussed how to connect to CSV in Informatica and integrate data without any coding. Click here to Download CSV Connector for Informatica and try yourself see how easy it is. If you still have any question(s) then ask here or simply click on live chat icon below and ask our expert (see bottom-right corner of this page).

Download CSV Connector for Informatica Documentation

Other App Integration scenarios for CSV

SSIS

SQL Server

Power BI

SSRS

MS Access

MS Excel

SSAS

Python

JAVA

Tableau

SAP Crystal Reports

Azure Data Factory (ADF)

ODBC

Other Connectors for Informatica

Zendesk

Azure DevOps

ManagedEngine ServiceDesk Plus (Zoho)

FastSpring

Zoho CRM

Hubspot

Google Sheets

Stripe

YouTube

Google BigQuery

OneDrive

OData

Amazon Ads

Mailchimp

Jira

Zoho SalesIQ

Outlook Mail (Office 365)

Zoom

Cosmos DB

Shopify

Nativo

Power BI

Google Drive

SharePoint Online

Amazon MWS

ServiceNow

ElasticSearch

Google Calendar

DropBox

REST API

JSON

JSON File

XML

SOAP

XML File

JDBC-ODBC Bridge

Salesforce

CSV

Amazon S3 JSON File

Amazon S3 XML File

Amazon S3 CSV File

Azure Blob JSON File

Azure Blob XML File

Azure Blob CSV File

FTP/SFTP JSON File

FTP/SFTP XML File

FTP/SFTP CSV File

Download CSV Connector for Informatica Documentation

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Informatica CSV Connector

How to Read/Write CSV data in Informatica

Informatica CSV Connector

Introduction

Requirements

High level Steps for Import CSV data using Informatica (Read CSV API data)

Video Tutorial – Read any API / JSON data in Informatica (Load CSV to SQL Table)

Getting Started – Import CSV to SQL Server in Informatica

Create ODBC Data Source (DSN) based on ZappySys CSV Driver

Read CSV API in Informatica

Read CSV File in Informatica

Create Connection in Informatica Workflow Designer

Import CSV Source Definition in Informatica Mapping Designer

Import SQL Server Target Definition in Informatica Mapping Designer

Create Source to Target Mapping in Informatica (Import JSON to SQL Server)

Create Workflow and Session in Informatica

Execute Workflow and Validate Log in Informatica

POST data to CSV in Informatica

Video Tutorial – How to POST data to REST API in Informatica

Keywords

Configuring pagination in the CSV Driver

ZappySys Authentication

Create Custom Store Procedure in ZappySys Driver

Create Custom Virtual Table in ZappySys Driver

Conclusion

Other App Integration scenarios for CSV

Other Connectors for Informatica

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