YAMLtoJSONConverter

Input

This transformer accepts any feature.

Output

Features successfully processed, with JSON results written to an attribute or file as specified in parameters.

Features that cause the operation to fail are output through this port. An fme_rejection_code attribute will be added along with a more descriptive fme_rejection_message attribute which contains more specific details as to the reason for the failure.

Rejected Feature Handling: can be set to either terminate the translation or continue running when it encounters a rejected feature. This setting is available both as a default FME option and as a workspace parameter.

Source

Input Source	Allows for selecting between one of two options for YAML Input: Attribute or File.
YAML Document	Enabled when Input Source is Attribute. The YAML Document can come from a string expression, including attribute values.
File	Enabled when Input Source is File. The source YAML can be read from a local file at a specified file path.

Output

Output	Allow for selecting between one of two options for JSON Output: Attribute or File.
Output Attribute	Enabled when Output is Attribute. Used to set the name of the Output Attribute carrying the resulting JSON.
File Destination	Enabled when Output is File. The resulting JSON will be output to the specified file path.

Pretty Print

Pretty Print: The JSON text will be formatted by adding indentations and new lines for improved readability.

Linear: All JSON contents will be put on a single line, to reduce the size of the JSON text.

Indent Size

Select a value from 0 to 9.

How to Set Parameter Values

Defining Values

There are several ways to define a value for use in a Transformer. The simplest is to simply type in a value or string, which can include functions of various types such as attribute references, math and string functions, and workspace parameters.

Using the Text Editor

The Text Editor provides a convenient way to construct text strings (including regular expressions) from various data sources, such as attributes, parameters, and constants, where the result is used directly inside a parameter.

Text Editor

Using the Arithmetic Editor

The Arithmetic Editor provides a convenient way to construct math expressions from various data sources, such as attributes, parameters, and feature functions, where the result is used directly inside a parameter.

Arithmetic Editor

Conditional Values

Set values depending on one or more test conditions that either pass or fail.

Parameter Condition Definition Dialog

Content

Expressions and strings can include a number of functions, characters, parameters, and more.

When setting values - whether entered directly in a parameter or constructed using one of the editors - strings and expressions containing String, Math, Date/Time or FME Feature Functions will have those functions evaluated. Therefore, the names of these functions (in the form @<function_name>) should not be used as literal string values.

Content Types

String Functions	These functions manipulate and format strings.
Special Characters	A set of control characters is available in the Text Editor.
Math Functions	Math functions are available in both editors.
Date/Time Functions	Date and time functions are available in the Text Editor.
Math Operators	These operators are available in the Arithmetic Editor.
FME Feature Functions	These return primarily feature-specific values.
FME Parameters	FME and workspace-specific parameters may be used.
Creating and Modifying User Parameters	Create your own editable parameters.

Dialog Options - Tables

Table Tools

Transformers with table-style parameters have additional tools for populating and manipulating values.

Row Reordering

Enabled once you have clicked on a row item. Choices include:

Add a row
Remove a row
Move current row up one
Move current row down one
Move current row to top
Move current row to bottom

Cut, Copy, and Paste

Enabled once you have clicked on a row item. Choices include:

Cut a row - delete and copy to clipboard
Copy a row to the clipboard
Paste a row from the clipboard

Cut, copy, and paste may be used within a transformer, or between transformers.

Filter

Start typing a string, and the matrix will only display rows matching those characters. Searches all columns. This only affects the display of attributes within the transformer - it does not alter which attributes are output.

Import

Import populates the table with a set of new attributes read from a dataset. Specific application varies between transformers.

Reset/Refresh

Generally resets the table to its initial state, and may provide additional options to remove invalid entries. Behavior varies between transformers.

Note: Not all tools are available in all transformers.

Processing Behavior	Feature-Based
Feature Holding	No
Dependencies	None
Aliases
History

YAMLtoJSONConverter

Typical Uses

Configuration

Input Ports

Output Ports

Parameters

Editing Transformer Parameters

Reference

FME Community