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wtf is cadence-idl?

yycptt/cadence-idl — explained in plain English

Analysis updated 2026-07-18 · repo last pushed 2021-11-30

Audience · developerComplexity · 3/5DormantSetup · hard

TL;DR

The shared interface definitions (IDL) that let the Cadence workflow orchestration server and its Go and Java client libraries speak the same protocol.

Mindmap

mindmap
  root((cadence-idl))
    What it does
      Defines shared protocol
      Keeps server and clients in sync
      Single source of truth
    Tech stack
      IDL
      Go client
      Java client
    Use cases
      Generate client code
      Add new server features
      Keep clients compatible
    Audience
      Cadence maintainers
      Go and Java developers
    Components
      Cadence server
      Go client library
      Java client library

Code map

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filefunction / class

Why would anyone build with this?

REASON 1

Regenerate client code for the Go or Java Cadence client from a single shared definition.

REASON 2

Add a new feature to the Cadence protocol and propagate it to all clients consistently.

REASON 3

Ensure a workflow-based application's client code stays compatible with the Cadence server.

REASON 4

Understand how the Cadence server and client libraries communicate under the hood.

What's in the stack?

IDLGoJava

How it stacks up

yycptt/cadence-idl0verflowme/alarm-clock0verflowme/seclists
Language—CSS—
Last pushed2021-11-302022-10-032020-05-03
MaintenanceDormantDormantDormant
Setup difficultyhardeasyeasy
Complexity3/52/51/5
Audiencedevelopervibe coderops devops

Figures from each repo's GitHub metadata at analysis time.

How do you spin it up?

Difficulty · hard Time to first run · 1h+

Used indirectly via the Cadence server and Go/Java clients rather than standalone.

Yoink these prompts

Prompt 1
Explain how this IDL keeps the Cadence server and its Go and Java clients in sync.
Prompt 2
Show me how client libraries regenerate their code from this shared interface definition.
Prompt 3
Walk me through what changes when a new feature is added to the Cadence IDL.
Prompt 4
Help me understand how my Go or Java workflow code depends on these interface definitions.

Frequently asked questions

wtf is cadence-idl?

The shared interface definitions (IDL) that let the Cadence workflow orchestration server and its Go and Java client libraries speak the same protocol.

Is cadence-idl actively maintained?

Dormant — no commits in 2+ years (last push 2021-11-30).

How hard is cadence-idl to set up?

Setup difficulty is rated hard, with roughly 1h+ to a first successful run.

Who is cadence-idl for?

Mainly developer.

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