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# Harmony's go-sdk
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This is a go layer on top of the Harmony RPC, included is a CLI tool that you can build with a
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simple invocation of `make`
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# Build
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Invoke `make` to build the `hmy_cli` binary.
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# Usage & Examples
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hmy_cli implements a fluent API
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```bash
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./hmy_cli blockchain protocol-version
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{"jsonrpc":"2.0","id":"0","result":"0x1"}
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./hmy_cli blockchain transaction-by-hash 0x9175e8a3a16afccf6c2d197ed97531de15fcea5b595a4c9ddf4d4d4a22beaab8 --node="http://localhost:9501" --pretty
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{
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"id": "0",
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"jsonrpc": "2.0",
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"result": {
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"blockHash": "0x787e5d6570eb7091110239e623a75901fb5d426f2a7ac42b60f83b7b455e200e",
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"blockNumber": "0x100",
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"from": "0xebcd16e8c1d8f493ba04e99a56474122d81a9c58",
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"gas": "0x5208",
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"gasPrice": "0x0",
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"hash": "0x9175e8a3a16afccf6c2d197ed97531de15fcea5b595a4c9ddf4d4d4a22beaab8",
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"input": "0x",
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"nonce": "0x2",
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"r": "0x5bf54b3ae151240d13cfd52acabd78f4161a7f71e5fee203c6ef98719f9ca327",
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"s": "0x129e31ea901f9471597c0c722183ccb0cd7ac628b2831e28068990b087032760",
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"to": "0x514650ca30b3c79f693e14220115434236d44aeb",
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"transactionIndex": "0x0",
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"v": "0x28",
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"value": "0xad78ebc5ac620000"
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}
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}
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./hmy_cli blockchain transaction-by-receipt 0x8a67a436eadf827faf17bfff18570c1c6c5c63f993d90511364f3adc9dd96c14 --node="http://localhost:9501" --pretty
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{
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"id": "0",
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"jsonrpc": "2.0",
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"result": {
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"blockHash": "0xed3b0bb70ab26e5c7db64ad0ccec6c13eef30e2739c5e48b6d676ff33f91e1ac",
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"blockNumber": "0x4c0",
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"contractAddress": null,
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"cumulativeGasUsed": "0x5208",
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"from": "0x514650ca30b3c79f693e14220115434236d44aeb",
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"gasUsed": "0x5208",
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"logs": [],
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"logsBloom": "0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
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"shardID": 1,
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"status": "0x1",
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"to": "0x6a87346f3ba9958d08d09484a2b7fdbbe42b0df6",
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"transactionHash": "0x8a67a436eadf827faf17bfff18570c1c6c5c63f993d90511364f3adc9dd96c14",
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"transactionIndex": "0x0"
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}
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}
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```
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# Debugging
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```bash
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HMY_RPC_DEBUG=true ./hmy_cli blockchain protocol-version
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```
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