Deploying the randdrop

Generate the merkle root

 merkle-airdrop-cli generateRoot --file juno-randdrop.json

Ouptut: 73d8ae84dddb8f99f08ecf141d0fb7d65fe8af7a2e4aeb7d6714f985d945851f

Make sure Nois is connected tou your chain

Check if there is a nois-proxy already on your chain to use it for the randomness. If there is no proxy you can create one yourself by following the #integrate_nois_to_your_chain_section in these docs. If you have a nois-proxy you can go ahead and move to the next step

compile, store and instantiate the randdrop contract

# This repo contains nois example contracts including the randdrop contract
 git clone https://github.com/noislabs/nois-dapp-examples
 cd nois-contracts

Compile

# This command will generate wasm files
 devtools/build_integration_wasm.sh

Make sure that you have now a wasm file in this path

ls target/wasm32-unknown-unknown/release/nois_airdrop.wasm

Store

junod tx wasm store target/wasm32-unknown-unknown/release/randdrop.wasm   \
--from deployment-key \
--chain-id=uni-6  \
--gas-prices 0.025ujunox \
--gas=auto --gas-adjustment 1.4  \
--broadcast-mode=block --node=https://rpc.uni.junonetwork.io:443

Instantiate

junod tx wasm instantiate2 1935 \
'{"manager":"juno1q6yvx8lxpheqflkcl0qf89czej4akrsfzc6xs2", "nois_proxy_address":"juno1pjpntyvkxeuxd709jlupuea3xzxlzsfq574kqefv77fr2kcg4mcqvwqedq","nois_proxy_denom":"ibc/717352A5277F3DE916E8FD6B87F4CA6A51F2FBA9CF04ABCFF2DF7202F8A8BC50","nois_proxy_amount":"50000000","randdrop_denom":"ibc/717352A5277F3DE916E8FD6B87F4CA6A51F2FBA9CF04ABCFF2DF7202F8A8BC50","merkle_root":"73d8ae84dddb8f99f08ecf141d0fb7d65fe8af7a2e4aeb7d6714f985d945851f", "test_mode":true}' 01 \
--label=randdrop --admin juno1q6yvx8lxpheqflkcl0qf89czej4akrsfzc6xs2 -\
-from deployment-key \
--chain-id uni-6 \
--gas=auto --gas-adjustment 1.2 --gas-prices=0.025ujunox \
--broadcast-mode=block --node=https://rpc.uni.junonetwork.io:443

Send the tokens to airdrop to the contract

The before the claiming can start you need to send the tokens to airdrop to the contract. Otherwise the contract won't be able to give the tokens to users that want to claim the randdrop

Claiming phase

Claim from the cli

Calculate the merkle proof from the

juno-8372000-stakers-between-8-and-80K.json json file
The address that will claim (needs to be in the file)
the amount that the address holds (needs to match what's on the file )

merkle-airdrop-cli generateProofs \
--file juno-randdrop.json \
--address juno1etltrk88jyye62lynfd8e8zhnu0lxd9udsk8fc \
--amount 74711941

Output:

[
  'c683e9ab4d7cffc52606aa3ee171d124ae9a57f05e351e6e2603dfce436487dc',
  'ad23cc14faa5ac312e9d0ce8556adf2eec04aee3cb3c70c33bbb110e55c02da4',
  '80101b58bd9ed6b38a96030ab786dd3e57fa4c54a0c719871239c731e4f3e452',
  '8173ef4c7a10f807526d1c98d9dc3f31c1e1573d91e1a277f0d2402ae9f2a5a6',
  '1a8f1619448c2c5968c4f58cd78fe6fc3dba749de36c13f45ac8d541ae192d20',
  'a5f77a7ce77940a5f68af5ffe3992532d6178f23fdbc1238f5f84fab5cfa7243',
  'a7a1fdeea81e9a4b1a6b58703cc1da3f2dd1ae309734b69bd1caa00e321ee247',
  '477a2f2885e39be7a0c76c4a766c5ffa6a28bae066b58bbb868f9f008e6c4899',
  '50b409286902a470c10d1aac1014182606a587033a120cc71d49ea9974123bc3',
  '723f2b84752aae6f6243f54627d88169bcea8fa9d233accce2779bcab0d6cbfa',
  '3f1dca55c55b0feab7d40629d20e3f4a90dc908d129b628eff4a99219ca0782d',
  '49de319f3d929c6c7e6fd247bd84db8519d45b947afe92d0f7866a6d3fbf6d16',
  'a10acecae9b1c8dc795dee423f56fcc457a6f8ab567c0070eb33b4a6ed5913e2',
  'bda76c1358d096c74780011ebafc99b1af58ed51ee258a4013dd17b90240f63b',
  '471a3872ad818e02be2145a90d9558601311f88ecf556383c4b017627007c7b2',
  '669627ae91df85a1e236fee0b1ae2d65256d471e0307f34215574f54f6e26b8a',
  'e004b23a35d1994359a27f225cf2024f59325e24f4667c7bd6a2230c97d5e3bd'
]

Participate in the randdrop by providing the proof

junod tx wasm execute juno14tfzmpl6kw2e6lyqzsvjgcqu7a9jhsneu0u4nvdv6znulps6xufqwlw2xf \
  '{"participate":{"amount":"74711941","proof":["c683e9ab4d7cffc52606aa3ee171d124ae9a57f05e351e6e2603dfce436487dc","ad23cc14faa5ac312e9d0ce8556adf2eec04aee3cb3c70c33bbb110e55c02da4","80101b58bd9ed6b38a96030ab786dd3e57fa4c54a0c719871239c731e4f3e452","8173ef4c7a10f807526d1c98d9dc3f31c1e1573d91e1a277f0d2402ae9f2a5a6","1a8f1619448c2c5968c4f58cd78fe6fc3dba749de36c13f45ac8d541ae192d20","a5f77a7ce77940a5f68af5ffe3992532d6178f23fdbc1238f5f84fab5cfa7243","a7a1fdeea81e9a4b1a6b58703cc1da3f2dd1ae309734b69bd1caa00e321ee247","477a2f2885e39be7a0c76c4a766c5ffa6a28bae066b58bbb868f9f008e6c4899","50b409286902a470c10d1aac1014182606a587033a120cc71d49ea9974123bc3","723f2b84752aae6f6243f54627d88169bcea8fa9d233accce2779bcab0d6cbfa","3f1dca55c55b0feab7d40629d20e3f4a90dc908d129b628eff4a99219ca0782d","49de319f3d929c6c7e6fd247bd84db8519d45b947afe92d0f7866a6d3fbf6d16","a10acecae9b1c8dc795dee423f56fcc457a6f8ab567c0070eb33b4a6ed5913e2","bda76c1358d096c74780011ebafc99b1af58ed51ee258a4013dd17b90240f63b","471a3872ad818e02be2145a90d9558601311f88ecf556383c4b017627007c7b2","669627ae91df85a1e236fee0b1ae2d65256d471e0307f34215574f54f6e26b8a","e004b23a35d1994359a27f225cf2024f59325e24f4667c7bd6a2230c97d5e3bd"]}}'\
    --from main \
    --chain-id uni-6 \
    --gas=auto --gas-adjustment 1.4 --gas-prices=0.025ujunox \
    --broadcast-mode=block \
    --node=https://rpc.uni.junonetwork.io:443

As soon as the randomness is published the relayer will trigger the contract and give the winner participant their airdrop

Claim from the UI

We can't expect every user to use the cli to claim their randdrop so you can just use a UI like Nois randdrop UI to get the address from keplr, check the randdrop eligibility, computes the merkle proof and executes the contract to claim the randdrop

Nois Documentation