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IC Reactor

Metadata Reactor Capabilities

This browser-only demo showcases MetadataReactor capabilities using a local IDL service definition, so it can run without a live canister.

Features Demonstrated

Section titled “Features Demonstrated”
  • Generate runtime input metadata with getInputMeta() and getAllInputMeta()
  • Generate runtime output metadata with getOutputMeta() and getAllOutputMeta()
  • Build dynamic variable references with buildMethodVariableCandidates()
  • Hydrate form values from hex-encoded Candid args with buildForMethod()
  • Resolve rich method outputs with metadata-driven resolvers
Section titled “Links”
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Live Preview

Section titled “Live Preview”

Key Code

Section titled “Key Code”
const inputMeta = reactor.getInputMeta(methodName)
const outputMeta = reactor.getOutputMeta(methodName)
const variableCandidates = reactor.buildMethodVariableCandidates(methodName)


const candidArgsHex = toHex(IDL.encode(argTypes, args))
const hydrated = await reactor.buildForMethod(methodName, { candidArgsHex })


const resolved = outputMeta?.resolve(sampleOutputs[methodName])