Running a TomoX Mongodb Fullnode

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This guide shows how to run a TomoX MongoDb Fullnode. To run the fullnode, you need to have MongoDb instance that enable replica set.

Start MongoDB
In this tutorial, we will run a mongo instance with Docker. Run this command:
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docker run -d -p 27017:27017 --name mongodb \
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    --hostname mongodb mongo:4.2 --replSet rs0
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Enable Mongodb replica set:
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docker exec -it mongodb mongo --eval "rs.initiate()"
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Run a fullnode
Download tomo version 2.0+ from TomoChain Github Release page​
E.g:
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wget https://github.com/tomochain/tomochain/releases/download/v2.1.0-beta/tomo-linux-amd64 -O tomo
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chmod +x tomo
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sudo mv tomo /usr/bin/
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Create a coinbase address:
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tomo account new
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Init genesis block: Testnet
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curl -L https://raw.githubusercontent.com/tomochain/tomochain/testnet/genesis/testnet.json -o genesis.json
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tomo init genesis.json
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Then run the node:
Testnet
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NODENAME=[your_node_name]
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tomo \
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    --bootnodes "enode://ba966140e161ad416a7bd7c75dc695e0a41232723e2b19cbbf651883ef5e8f252[email protected]195.154.150.210:30301" \
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    --networkid 89 \
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    --rpc --rpccorsdomain "*" --rpcaddr 0.0.0.0 --rpcport 8545 --rpcvhosts "*" \
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    --ws --wsaddr 0.0.0.0 --wsport 8546 --wsorigins "*" \
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    --rpcapi "personal,db,eth,net,web3,txpool,miner,tomox" \
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    --announce-txs \
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    --tomo-testnet \
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    --tomox.dbengine "mongodb" \
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    --ethstats "${NODENAME}:[email protected]"
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You node will sync the data from TomoChain network, you need to wait until your node catch up the latest block. You can check the status in the logs or the stats page.
To save your time, you should download chaindata snapshot and override your chaindata.
Troubleshoot
Fatal: Failed to write genesis block
You already inited genesis block for the default datadir. So you need to use another datadir by --datadir
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tomo account new --datadir [YOUR_DATADIR]
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tomo init genesis.json --datadir [YOUR_DATADIR]
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Example
Testnet
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wget https://github.com/tomochain/tomochain/releases/download/v2.0.0-beta/tomo-linux-amd64 -O tomo
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chmod +x tomo
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sudo mv tomo /usr/bin/
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tomo --version
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tomo version
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curl -L https://raw.githubusercontent.com/tomochain/tomochain/master/genesis/testnet.json -o genesis.json
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tomo init genesis.json 
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tomo account new --datadir /tmp/chaindata
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tomo init genesis.json --datadir /tmp/chaindata/
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NODENAME=testnode02
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tomo \
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    --bootnodes "enode://ba966140e161ad416a7bd7c75dc695e0a41232723e2b19cbbf651883ef5e8f252[email protected]195.154.150.210:30301" \
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    --networkid 89 \
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    --rpc \
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    --rpccorsdomain "*" --rpcaddr 0.0.0.0 --rpcport 8545 --rpcvhosts "*" \
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    --ws --wsaddr 0.0.0.0 --wsport 8546 --wsorigins "*" \
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    --rpcapi "personal,db,eth,net,web3,txpool,miner,tomox" \
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    --announce-txs --tomo-testnet --tomox.dbengine "mongodb" \
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    --ethstats "${NODENAME}:[email protected]" \
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    --datadir /tmp/chaindata/
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Testnet chaindata snapshot
To speed up syncing chaindata, you can download chaindata snapshot and override your local chaindata.
Download: Testnet chaindata​
E.g:
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# Download
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wget -c https://chaindata-testnet.s3-ap-southeast-1.amazonaws.com/chaindata-testnet.tar
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​
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# Uncompress
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tar xvf chaindata-testnet.tar
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Running a TomoX DEX

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Testnet chaindata snapshot