Add self-describing events for `stellar events` and `contract invoke`. #2380

fnando · 2026-02-09T18:34:57Z

What

Using stellar contract invoke:

$ stellar contract invoke --id events -- transfer --from default --to fnando --amount 100
ℹ️ Signing transaction: df106774838950fb3741f4e90801a114f2f001c42c5123c5d2c5bb53b319bc1b
📅 CCIHVGCOHGYGKOHBWT3GMR7WTUDFCHMWLWWR6DDP7VT2HJ6JMER4Z2T3 - Success - Event: Transfer, from: "GABE6W7BTZV3C2N5I5A4NYD5SL6VZ5NUSCLP7E4BENIJMZSPU6WE4ZEW", to: "GDKFIXWU5HFD7ZLHN6X6ZRA4NW2U54X2GXR35WAQGS4KKALOVATUSVH5", amount: "100"

Using stellar events:

$ stellar events --id events --start-ledger 918600 --count 10 --output plain
Event 0003945550231638016-0000000000 [CONTRACT]:
  Ledger:   918645 (closed at 2026-02-09T18:03:16Z)
  Contract: CCIHVGCOHGYGKOHBWT3GMR7WTUDFCHMWLWWR6DDP7VT2HJ6JMER4Z2T3
  Event:    Transfer
  Params:
    from: "GABE6W7BTZV3C2N5I5A4NYD5SL6VZ5NUSCLP7E4BENIJMZSPU6WE4ZEW"
    to: "GDKFIXWU5HFD7ZLHN6X6ZRA4NW2U54X2GXR35WAQGS4KKALOVATUSVH5"
    amount: "500"

Event 0003945597476278272-0000000000 [CONTRACT]:
  Ledger:   918656 (closed at 2026-02-09T18:03:27Z)
  Contract: CCIHVGCOHGYGKOHBWT3GMR7WTUDFCHMWLWWR6DDP7VT2HJ6JMER4Z2T3
  Event:    Approve
  Params:
    owner: "GABE6W7BTZV3C2N5I5A4NYD5SL6VZ5NUSCLP7E4BENIJMZSPU6WE4ZEW"
    spender: "GDKFIXWU5HFD7ZLHN6X6ZRA4NW2U54X2GXR35WAQGS4KKALOVATUSVH5"
    amount: "1000"
    expiration_ledger: 999999

Event 0003952757186760704-0000000000 [CONTRACT]:
  Ledger:   920323 (closed at 2026-02-09T18:31:18Z)
  Contract: CCIHVGCOHGYGKOHBWT3GMR7WTUDFCHMWLWWR6DDP7VT2HJ6JMER4Z2T3
  Event:    Transfer
  Params:
    from: "GABE6W7BTZV3C2N5I5A4NYD5SL6VZ5NUSCLP7E4BENIJMZSPU6WE4ZEW"
    to: "GDKFIXWU5HFD7ZLHN6X6ZRA4NW2U54X2GXR35WAQGS4KKALOVATUSVH5"
    amount: "100"

$ stellar events --id events --start-ledger 918600 --count 10 --output raw
Event 0003945550231638016-0000000000 [CONTRACT]:
  Ledger:   918645 (closed at 2026-02-09T18:03:16Z)
  Contract: CCIHVGCOHGYGKOHBWT3GMR7WTUDFCHMWLWWR6DDP7VT2HJ6JMER4Z2T3
  Topics:
            Symbol(ScSymbol(StringM(transfer)))
            Address(Account(AccountId(PublicKeyTypeEd25519(Uint256(024f5be19e6bb169bd4741c6e07d92fd5cf5b49096ff9381235096664fa7ac4e)))))
            Address(Account(AccountId(PublicKeyTypeEd25519(Uint256(d4545ed4e9ca3fe5676fafecc41c6db54ef2fa35e3bed81034b8a5016ea82749)))))
  Value: I128(Int128Parts { hi: 0, lo: 500 })

Event 0003945597476278272-0000000000 [CONTRACT]:
  Ledger:   918656 (closed at 2026-02-09T18:03:27Z)
  Contract: CCIHVGCOHGYGKOHBWT3GMR7WTUDFCHMWLWWR6DDP7VT2HJ6JMER4Z2T3
  Topics:
            Symbol(ScSymbol(StringM(approve)))
            Address(Account(AccountId(PublicKeyTypeEd25519(Uint256(024f5be19e6bb169bd4741c6e07d92fd5cf5b49096ff9381235096664fa7ac4e)))))
            Address(Account(AccountId(PublicKeyTypeEd25519(Uint256(d4545ed4e9ca3fe5676fafecc41c6db54ef2fa35e3bed81034b8a5016ea82749)))))
  Value: Vec(Some(ScVec(VecM([I128(Int128Parts { hi: 0, lo: 1000 }), U32(999999)]))))

Event 0003952757186760704-0000000000 [CONTRACT]:
  Ledger:   920323 (closed at 2026-02-09T18:31:18Z)
  Contract: CCIHVGCOHGYGKOHBWT3GMR7WTUDFCHMWLWWR6DDP7VT2HJ6JMER4Z2T3
  Topics:
            Symbol(ScSymbol(StringM(transfer)))
            Address(Account(AccountId(PublicKeyTypeEd25519(Uint256(024f5be19e6bb169bd4741c6e07d92fd5cf5b49096ff9381235096664fa7ac4e)))))
            Address(Account(AccountId(PublicKeyTypeEd25519(Uint256(d4545ed4e9ca3fe5676fafecc41c6db54ef2fa35e3bed81034b8a5016ea82749)))))
  Value: I128(Int128Parts { hi: 0, lo: 100 })

$ stellar events --id events --start-ledger 918600 --count 10 --output json
{"id":"0003945550231638016-0000000000","ledger":918645,"ledger_closed_at":"2026-02-09T18:03:16Z","type":"contract","contract_id":"CCIHVGCOHGYGKOHBWT3GMR7WTUDFCHMWLWWR6DDP7VT2HJ6JMER4Z2T3","event_name":"Transfer","params":{"from":"GABE6W7BTZV3C2N5I5A4NYD5SL6VZ5NUSCLP7E4BENIJMZSPU6WE4ZEW","to":"GDKFIXWU5HFD7ZLHN6X6ZRA4NW2U54X2GXR35WAQGS4KKALOVATUSVH5","amount":"500"}}
{"id":"0003945597476278272-0000000000","ledger":918656,"ledger_closed_at":"2026-02-09T18:03:27Z","type":"contract","contract_id":"CCIHVGCOHGYGKOHBWT3GMR7WTUDFCHMWLWWR6DDP7VT2HJ6JMER4Z2T3","event_name":"Approve","params":{"owner":"GABE6W7BTZV3C2N5I5A4NYD5SL6VZ5NUSCLP7E4BENIJMZSPU6WE4ZEW","spender":"GDKFIXWU5HFD7ZLHN6X6ZRA4NW2U54X2GXR35WAQGS4KKALOVATUSVH5","amount":"1000","expiration_ledger":999999}}
{"id":"0003952757186760704-0000000000","ledger":920323,"ledger_closed_at":"2026-02-09T18:31:18Z","type":"contract","contract_id":"CCIHVGCOHGYGKOHBWT3GMR7WTUDFCHMWLWWR6DDP7VT2HJ6JMER4Z2T3","event_name":"Transfer","params":{"from":"GABE6W7BTZV3C2N5I5A4NYD5SL6VZ5NUSCLP7E4BENIJMZSPU6WE4ZEW","to":"GDKFIXWU5HFD7ZLHN6X6ZRA4NW2U54X2GXR35WAQGS4KKALOVATUSVH5","amount":"100"}}

$ stellar events --id events --start-ledger 918600 --count 10 --output pretty
Event 0003945550231638016-0000000000 [CONTRACT]:
  Ledger:   918645 (closed at 2026-02-09T18:03:16Z)
  Contract: CCIHVGCOHGYGKOHBWT3GMR7WTUDFCHMWLWWR6DDP7VT2HJ6JMER4Z2T3
  Event:    Transfer
  Params:
    from: "GABE6W7BTZV3C2N5I5A4NYD5SL6VZ5NUSCLP7E4BENIJMZSPU6WE4ZEW"
    to: "GDKFIXWU5HFD7ZLHN6X6ZRA4NW2U54X2GXR35WAQGS4KKALOVATUSVH5"
    amount: "500"

Event 0003945597476278272-0000000000 [CONTRACT]:
  Ledger:   918656 (closed at 2026-02-09T18:03:27Z)
  Contract: CCIHVGCOHGYGKOHBWT3GMR7WTUDFCHMWLWWR6DDP7VT2HJ6JMER4Z2T3
  Event:    Approve
  Params:
    owner: "GABE6W7BTZV3C2N5I5A4NYD5SL6VZ5NUSCLP7E4BENIJMZSPU6WE4ZEW"
    spender: "GDKFIXWU5HFD7ZLHN6X6ZRA4NW2U54X2GXR35WAQGS4KKALOVATUSVH5"
    amount: "1000"
    expiration_ledger: 999999

Event 0003952757186760704-0000000000 [CONTRACT]:
  Ledger:   920323 (closed at 2026-02-09T18:31:18Z)
  Contract: CCIHVGCOHGYGKOHBWT3GMR7WTUDFCHMWLWWR6DDP7VT2HJ6JMER4Z2T3
  Event:    Transfer
  Params:
    from: "GABE6W7BTZV3C2N5I5A4NYD5SL6VZ5NUSCLP7E4BENIJMZSPU6WE4ZEW"
    to: "GDKFIXWU5HFD7ZLHN6X6ZRA4NW2U54X2GXR35WAQGS4KKALOVATUSVH5"
    amount: "100"

$ stellar events --id events --start-ledger 918600 --count 10
Event 0003945550231638016-0000000000 [CONTRACT]:
  Ledger:   918645 (closed at 2026-02-09T18:03:16Z)
  Contract: CCIHVGCOHGYGKOHBWT3GMR7WTUDFCHMWLWWR6DDP7VT2HJ6JMER4Z2T3
  Event:    Transfer
  Params:
    from: "GABE6W7BTZV3C2N5I5A4NYD5SL6VZ5NUSCLP7E4BENIJMZSPU6WE4ZEW"
    to: "GDKFIXWU5HFD7ZLHN6X6ZRA4NW2U54X2GXR35WAQGS4KKALOVATUSVH5"
    amount: "500"

Event 0003945597476278272-0000000000 [CONTRACT]:
  Ledger:   918656 (closed at 2026-02-09T18:03:27Z)
  Contract: CCIHVGCOHGYGKOHBWT3GMR7WTUDFCHMWLWWR6DDP7VT2HJ6JMER4Z2T3
  Event:    Approve
  Params:
    owner: "GABE6W7BTZV3C2N5I5A4NYD5SL6VZ5NUSCLP7E4BENIJMZSPU6WE4ZEW"
    spender: "GDKFIXWU5HFD7ZLHN6X6ZRA4NW2U54X2GXR35WAQGS4KKALOVATUSVH5"
    amount: "1000"
    expiration_ledger: 999999

Event 0003952757186760704-0000000000 [CONTRACT]:
  Ledger:   920323 (closed at 2026-02-09T18:31:18Z)
  Contract: CCIHVGCOHGYGKOHBWT3GMR7WTUDFCHMWLWWR6DDP7VT2HJ6JMER4Z2T3
  Event:    Transfer
  Params:
    from: "GABE6W7BTZV3C2N5I5A4NYD5SL6VZ5NUSCLP7E4BENIJMZSPU6WE4ZEW"
    to: "GDKFIXWU5HFD7ZLHN6X6ZRA4NW2U54X2GXR35WAQGS4KKALOVATUSVH5"
    amount: "100"

Why

Implement #2086.

Known limitations

N/A

willemneal · 2026-02-09T19:10:46Z

Looks awesome! My one nit is that the invoke line is too long. If the invoke had multiple events could they share the same output as the other event examples?

fnando · 2026-02-09T19:16:03Z

@willemneal I decided to keep the same previous output mostly because in a real terminal you get the autowrap.

willemneal · 2026-02-09T19:18:19Z

That's true, just find it more readable than an auto wrap, since it would be predictable line breaks and chunked logically.

leighmcculloch

👏🏻 So good. Few questions and comments inline.

cmd/crates/soroban-spec-tools/src/event.rs

cmd/soroban-cli/src/commands/contract/invoke.rs

cmd/soroban-cli/src/commands/events.rs

Copilot

Pull request overview

Implements self-describing (spec-decoded) contract event rendering for stellar events and stellar contract invoke, leveraging Protocol 23 event definitions in contract specs to display named parameters and improved human-readable/JSON output.

Changes:

Add event-spec decoding support to soroban-spec-tools (new event module + Spec::find_events + decoding helpers/tests).
Update stellar events to optionally fetch contract specs and render decoded Pretty/Plain/Json outputs, plus add a --output raw mode.
Update stellar contract invoke to render decoded contract events when the invoked contract’s spec is available.

Reviewed changes

Copilot reviewed 8 out of 9 changed files in this pull request and generated 5 comments.

Show a summary per file

File	Description
cmd/soroban-cli/src/log/event.rs	Adds `contract_with_spec` to render decoded contract events when a spec is provided, with raw fallback.
cmd/soroban-cli/src/commands/events.rs	Adds decoded event rendering (Pretty/Plain/Json), spec fetching/cache, and a new `raw` output mode.
cmd/soroban-cli/src/commands/contract/invoke.rs	Switches invoke event printing to the new spec-aware event renderer.
cmd/soroban-cli/Cargo.toml	Adds `indexmap` dependency for stable param ordering in decoded output.
cmd/crates/soroban-spec-tools/src/lib.rs	Exposes new `event` module and adds `Spec::find_events` with tests.
cmd/crates/soroban-spec-tools/src/event.rs	Introduces event spec matching/decoding to named parameters + unit tests.
cmd/crates/soroban-spec-tools/Cargo.toml	Adds `serde` and `indexmap` dependencies needed for decoded event types.
FULL_HELP_DOCS.md	Documents new/updated `stellar events --output` behaviors (decoded formats + `raw`).
Cargo.lock	Locks new transitive dependencies (`indexmap`, `serde`).

cmd/soroban-cli/src/commands/events.rs

cmd/crates/soroban-spec-tools/src/event.rs

cmd/soroban-cli/src/commands/contract/invoke.rs

cmd/soroban-cli/src/commands/events.rs

Add self-describing events for stellar events and contract invoke.

3fdad89

Copilot AI review requested due to automatic review settings February 9, 2026 18:34

github-project-automation bot added this to DevX Feb 9, 2026

github-project-automation bot moved this to Backlog (Not Ready) in DevX Feb 9, 2026

fnando requested review from leighmcculloch and mootz12 and removed request for Copilot February 9, 2026 18:35

Copilot started reviewing on behalf of fnando February 9, 2026 18:35 View session

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Address feedback.

fd15a7a

Copilot AI review requested due to automatic review settings February 9, 2026 21:49

Copilot started reviewing on behalf of fnando February 9, 2026 21:50 View session

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mootz12 approved these changes Feb 10, 2026

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cmd/soroban-cli/src/commands/events.rs Show resolved Hide resolved

Merge branch 'main' into self-describing-events

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fnando merged commit 6ce33a1 into main Feb 10, 2026
32 checks passed

fnando deleted the self-describing-events branch February 10, 2026 17:55

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Add self-describing events for `stellar events` and `contract invoke`. #2380

Add self-describing events for `stellar events` and `contract invoke`. #2380

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fnando commented Feb 9, 2026

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Add self-describing events for stellar events and contract invoke. #2380

Add self-describing events for stellar events and contract invoke. #2380

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fnando commented Feb 9, 2026

What

Why

Known limitations

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Add self-describing events for `stellar events` and `contract invoke`. #2380

Add self-describing events for `stellar events` and `contract invoke`. #2380

willemneal commented Feb 9, 2026 •

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