socalcas.blogg.se - Converting json file to csv

Then add the Implode formula on top of that to convert the list of keys to a comma-separated string. This will output a list of all header names used in the first item of the list.

Use the output from the Get Straight Table Data block as input for the Get Keys formula.

This will function as the headers for the CSV file.

Get the keys of the objects in the list and store them as a comma-separated list as the first string item in the CSV variable from the previous step.

Create an empty variable "CSV" of type List.

This example will convert a non-nested JSON list to a CSV string. You’ll find an exported example of this automation at the end of this article as convert_json_list_to_csv_file.json.Ĭonverting a basic JSON list to a CSV string You can now execute this automation to create the CSV file on Amazon S3.

Add a Save And Close File block to save the CSV file to Amazon S3.

Tip: If your list contains nested lists (see the Nested lists part at the end of this article), then add a Flatten formula first before applying the CSV formula. Then add the Implode formula on top of that to transform the list of keys into a comma-separated list.

Set to the current item in the loop from the Get Straight Table Data block and apply the Get Keys formula.

Use this approach if not all objects contain the same keys or if you don’t want to include all keys in the CSV file.

Hard code to a comma-separated list of column names (these must be the same as the object's keys in the source list).

Delimiter ->, (feel free to change this).

Data -> current item in the loop from the Get Straight Table Data block.

File -> the file from the Create File block.

Add a Write Line To File block from the Cloud Storage connector inside the loop created by the Get Straight Table Data block, and configure it as follows:.

In this example, we'll use the Get Straight Table Data block.

Add a block that has a list of objects as output.

Add a Create File block from the Cloud Storage connector and configure it to use Amazon S3.

Every object in the list must contain all possible keys, even if the value for that key is null.

This example will convert a JSON list to a CSV file on Amazon S3.

In the 3rd part of this article, we'll cover lists that contain objects with varying keys. This means that every object in the list must contain all possible keys, even if the value for that key is null. The first two examples will use a "basic" JSON list. This article explains how to convert a JSON list to a CSV file or string using Qlik Application Automation.