27 lines
763 B
Nim
27 lines
763 B
Nim
import std/json
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import std/os
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import pkg/ethers
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import pkg/questionable
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type Deployment* = object
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json: JsonNode
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const defaultFile = "vendor" / "codex-contracts-eth" / "deployment-localhost.json"
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## Reads deployment information from a json file. It expects a file that has
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## been exported with Hardhat deploy.
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## See also:
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## https://github.com/wighawag/hardhat-deploy/tree/master#6-hardhat-export
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proc deployment*(file = defaultFile): Deployment =
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Deployment(json: parseFile(file))
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proc address*(deployment: Deployment, Contract: typedesc): ?Address =
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if deployment.json == nil:
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return none Address
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try:
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let address = deployment.json["contracts"][$Contract]["address"].getStr()
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Address.init(address)
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except KeyError:
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none Address
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