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pezkuwi-subxt/substrate/frame/examples/offchain-worker
Oliver Tale-Yazdi 77321288c3 Fix Substrate features (#14660)
* Fix std, runtime-benchmarks and try-runtime features

zepter lint propagate-feature --feature try-runtime --left-side-feature-missing=ignore --workspace --fix --feature-enables-dep="try-runtime:frame-try-runtime"
zepter lint propagate-feature --feature runtime-benchmarks --left-side-feature-missing=ignore --workspace --fix --feature-enables-dep="runtime-benchmarks:frame-benchmarking"
zepter lint propagate-feature --feature std --left-side-feature-missing=ignore --workspace --fix

Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>

* Add propagate feature CI check

Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>

* Test CI by adding an error

Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>

* Use --locked

Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>

* Add help msg

Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>

* Revert "Test CI by adding an error"

This reverts commit cf4ff6cc0632269b0a109e547686e5e3314b02de.

* Test CI by adding an error

Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>

* No newline in help msg

Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>

* Revert "Test CI by adding an error"

This reverts commit 5daa06ada8e01f5bebafb9d1c76804dd79bc1006.

* Test CI by adding an error

Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>

* Revert "Test CI by adding an error"

This reverts commit ca15de5729507a564f140a10ec2e87b19516ec4c.

* Fix msg

Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>

* Revert back to master

Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>

* Re-do with Zepter v0.7.4

Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>

* Update Zepter to 0.7.4

Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>

* Disable rococo try-runtime check

Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>

* Apply suggestions from code review

Co-authored-by: Bastian Köcher <git@kchr.de>

* More review fixes

Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>

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Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
Co-authored-by: Bastian Köcher <git@kchr.de>
2023-08-01 20:25:59 +00:00
..
2023-08-01 20:25:59 +00:00

Offchain Worker Example Pallet

The Offchain Worker Example: A simple pallet demonstrating concepts, APIs and structures common to most offchain workers.

Run cargo doc --package pallet-example-offchain-worker --open to view this module's documentation.

This pallet serves as an example showcasing Substrate off-chain worker and is not meant to be used in production.

Overview

In this example we are going to build a very simplistic, naive and definitely NOT production-ready oracle for BTC/USD price. Offchain Worker (OCW) will be triggered after every block, fetch the current price and prepare either signed or unsigned transaction to feed the result back on chain. The on-chain logic will simply aggregate the results and store last 64 values to compute the average price. Additional logic in OCW is put in place to prevent spamming the network with both signed and unsigned transactions, and custom UnsignedValidator makes sure that there is only one unsigned transaction floating in the network.

License: MIT-0