Member Request

[edwardmack]

My name is Edward Mack and I am a software engineer for Gossamer, a Golang implementation of the Polkadot Host. I have been directly contributing to Gossamer and the Polkadot ecosystem since July of 2019.

During this time I've been involved with implementing aspects of the Polkadot Host Specification for the Gossamer client, including working with Babe, Grandpa, RPC implementation, Scale codec, networking and interfacing with runtimes. I enjoy working with runtime instances, learning and implementing interfaces for interacting with runtimes has been rewarding because I've grown to appreciate the power of having a portable, up-gradable runtime. I'm interested in joining the fellowship to share my understanding with the community as well as being a part of shaping how Polkadot is implemented.

I am requesting to join the Fellowship at rank 1.

All of my contributions can be seen at https://github.com/ChainSafe/gossamer/pulls?q=author:edwardmack+user:chainsafe and notable contributions are listed below.

Notable contributions:

Scale:

• feat(pkg/scale): add use of pkg/error Wrap for error handling ChainSafe/gossamer#2708
• feat(scale): add range checks to decodeUint function ChainSafe/gossamer#2683
• codec; Enable custom scale methods ChainSafe/gossamer#597
• scale: encode/decode []string in struct ChainSafe/gossamer#560

Babe:

• fix(lib/babe): Unrestricted Loop When Building Blocks (GSR-19) ChainSafe/gossamer#2632
• feat(lib/babe): add check of types.ConfigData.SecondarySlots for disabling secondary verification ChainSafe/gossamer#1910

Grandpa:

• fix(lib/grandpa): Duplicate votes is GRANDPA are counted as equivocatory votes (GSR-11) ChainSafe/gossamer#2624
• fix(lib/grandpa): Storing Justification Allows Extra Bytes (GSR-13) ChainSafe/gossamer#2618
• lib/grandpa: verify block justification when handling FinalizationMessage ChainSafe/gossamer#1084

RPC

• feat(rpc/subscription): implement state_unsubscribeStorage ChainSafe/gossamer#1574
• feat: dot/rpc: Add support for submit and watch extrinisic ChainSafe/gossamer#1415
• [dot/rpc] implement RPC system_accountNextIndex ChainSafe/gossamer#1376
• [dot/rpc] implement RPC state_getKeysPaged ChainSafe/gossamer#1310
• [dot/state] implement state_subscribeStorage ChainSafe/gossamer#1290
• dot/rpc: implement chain_subscribeFinalizedHeads RPC method ChainSafe/gossamer#1140
• dot/rpc implement state_subscribeStorage RPC WebSocket method ChainSafe/gossamer#983
• dot/rpc: implement RPC call state_control ChainSafe/gossamer#896
• dot/rpc, dot/network: Implement RPC system_nodeRoles  ChainSafe/gossamer#880
• dot/rpc: Implement RPC method author_hasKey ChainSafe/gossamer#877
• dot/rpc Implement RPC call state_getMetadata  ChainSafe/gossamer#853
• dot/rpc: Implement RPC system_name, system_version, system_chain ChainSafe/gossamer#849
• dot/rpc: implement chain_subscribeNewHeads ChainSafe/gossamer#836
• dot/rpc: implement RPC state storage calls ChainSafe/gossamer#835
• dot/rpc: implement RPC call rpc_methods ChainSafe/gossamer#816
• dot/rpc: Implement RPC author_insertKey ChainSafe/gossamer#765
• dot/rpc; implement RPC chain_getBlockHash ChainSafe/gossamer#752
• dot/rpc: implement RPC methods chain_getHeader and chain_getBlock ChainSafe/gossamer#745

Implementing runtime imports:

• feat(lib/runtime/wasmer) implement ext_crypto_ecdsa_verify_version_2 ChainSafe/gossamer#1912
• feature (lib/runtime/wasmer): implement ext_default_child_storage_storage_kill_version_3 ChainSafe/gossamer#1878
• feat(lib/runtime/wasmer): implement ext_offchain_local_storage_version_1 ChainSafe/gossamer#1821
• feat: implement ext_default_child_storage_storage_kill_version_2 ChainSafe/gossamer#1799
• feat: implement ext_offchain_index_set_version_1 for wasmer runtime ChainSafe/gossamer#1739
• lib/runtime: implement ext_submit_transaction ChainSafe/gossamer#1120
• lib/runtime: implement ext_clear_child_storage and tests ChainSafe/gossamer#1118
• lib/runtime: implement ext_local_storage_compare_and_set ChainSafe/gossamer#1117
• lib/runtime: implement ext_kill_child_storage and ext_get_allocated_child_storage ChainSafe/gossamer#1110
• lib/runtime: implement ext_network_state ChainSafe/gossamer#1108
• lib/runtime: implement ext_local_storage_set and ext_local_storage_get  ChainSafe/gossamer#1101
• lib/runtime: implement ext_is_validator ChainSafe/gossamer#1100
• p2p, add Block Announce Network Message ChainSafe/gossamer#296

Telemetry:

• feat(dot/telemetry): implement telemetry message network_state ChainSafe/gossamer#1618
• fix (dot/telemetry): refactor telemetry to reduce CPU usage ChainSafe/gossamer#1597
• feat (dot/telemetry): implement telemetry system.interval message ChainSafe/gossamer#1528

Community Engagement:

• Gossamer Update: November 2020
• Gossamer Update: September 2020