Interacts with the Ethereum blockchain network. The functions include reading transaction, address, or block information, sending transactions, or interaction with deployed contracts.

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Typical Uses

  • Reading transaction, address, or block information
  • Sending transactions
  • Interacting with deployed contracts

How does it work?

The Ethereum blockchain is an immutable and distributed ledger. Once data is stored on the blockchain it cannot be changed or deleted. Information is added to the network by sending a transaction. Ethereum also allows code execution called contracts, which together can create decentralized applications (Dapps). The EthereumConnector allows:

  • Reading stored information
  • Storing data
  • Interacting with Dapps

There are 2 methods of connecting to the Ethereum network through the connector.

  1. An rpc url to an ethereum node. is a popular node service, or you can use a local or another hosted node.
  2. An API Key from

A private key is required to send a transaction. The key is generated when you create an ethereum wallet.

Usage Notes

  • There are multiple ethereum networks. The public mainnet requires real ether for the transaction fee to send transactions. For testing purposes, we recommend using a testnet as transactions are free and ether has no monetary value. However, testnets should only be for testing purposes and should not be used for production.


Input Ports

Output Ports


The remaining parameters available depend on the value of the Request > Action parameter. Parameters for each Action are detailed below.

Editing Transformer Parameters

Using a set of menu options, transformer parameters can be assigned by referencing other elements in the workspace. More advanced functions, such as an advanced editor and an arithmetic editor, are also available in some transformers. To access a menu of these options, click beside the applicable parameter. For more information, see Transformer Parameter Menu Options.

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. There are a number of tools and shortcuts that can assist in constructing values, generally available from the drop-down context menu adjacent to the value field.

Dialog Options - Tables

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


Processing Behavior


Feature Holding


Dependencies Ethereum connection
History Released FME 2019.1

FME Community

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Search for all results about the EthereumConnector on the FME Community.


Examples may contain information licensed under the Open Government Licence – Vancouver and/or the Open Government Licence – Canada.