fixed-width-statement

fixed-width-statement

Decode a fixed-width bank-statement line with a plugin: acme.fixedwidth, a compiled codec that runs inside Orion's WebAssembly sandbox. The workflow hands the plugin the line and a column spec, gets typed fields back, and summarises them with an ordinary map. The plugin's source is in examples/plugins/fixed-width/; the built component fixed-width.wasm sits beside plugin.toml here, so the package deploys without a wasm toolchain.

The one example that is not zero-configuration: the server must run with plugins.enabled = true (or ORION_PLUGINS__ENABLED=true). From the repository root, with such a server on http://localhost:8080:

./examples/deploy.sh fixed-width-statement

That uploads and activates the plugin, creates and activates the workflow and channel, POSTs request.json to POST /api/v1/data/statements, and prints the response — data.statement.amount is 12500.99, decoded from the eleven minor-unit digits in columns 11–21.

The same package is a promotion artifact: orion-server compile examples/packages/fixed-width-statement --name statements --version 1.0.0 -o pkg.json inlines the component, and orion-server package apply installs the plugin on the target before the workflow that calls it. Offline, orion-server test examples/workflow-tests --plugin-dir examples/packages/fixed-width-statement runs the codec for real. See examples/README.md for the file layout and the full example list, Run the Examples for the step-by-step walkthrough, and Build a plugin for how the codec was written.