Getting Started
ICON Stack
Deploying smart contracts
How to deploy a smart contract
Using
goloop CLI commandNow you can deploy the optimized jar to ICON networks that support the Java smart contract execution environment. Assuming you are running a local network that is listening on port 9082 for incoming requests, you can create a deploy transaction with the optimized jar and deploy it to the local network as follows.
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$ goloop rpc sendtx deploy ./hello-world/build/libs/hello-world-0.1.0-optimized.jar \
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--uri http://localhost:9082/api/v3 \
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--key_store <your_wallet_json> --key_password <password> \
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--nid 3 --step_limit=1000000 \
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--content_type application/java \
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--param name=Alice
[Note] The content type should be
application/java instead of application/zip to differentiate it with the Python smart contract deployment.​
Using
deployJar extensionStarting with version
0.7.2 of gradle-javaee-plugin, you can also use the deployJar extension to specify all the information required for deployment.1
deployJar {
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endpoints {
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local {
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uri = 'http://localhost:9082/api/v3'
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nid = 3
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}
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}
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keystore = rootProject.hasProperty('keystoreName') ? "$keystoreName" : ''
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password = rootProject.hasProperty('keystorePass') ? "$keystorePass" : ''
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parameters {
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arg('name', 'Alice')
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}
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}
Now you can run
deployToLocal task as follows.1
$ ./gradlew hello-world:deployToLocal -PkeystoreName=<your_wallet_json> -PkeystorePass=<password>
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​
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> Task :hello-world:deployToLocal
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>>> deploy to http://localhost:9082/api/v3
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>>> optimizedJar = ./hello-world/build/libs/hello-world-0.1.0-optimized.jar
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>>> keystore = <your_wallet_json>
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Succeeded to deploy: 0x699534c9f5277539e1b572420819141c7cf3e52a6904a34b2a2cdb05b95ab0a3
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SCORE address: cxd6d044b01db068cded47bde12ed4f15a6da9f1d8
[Note] If you want to deploy to Lisbon testnet, use the following configuration for the endpoint and run
deployToLisbon task.1
deployJar {
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endpoints {
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lisbon {
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uri = 'https://lisbon.net.solidwallet.io/api/v3'
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nid = 0x2
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}
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...
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}
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}
​
4. Verify the execution
Check the deployed smart contract address first using the
txresult command.1
$ goloop rpc txresult <tx_hash> --uri http://localhost:9082/api/v3
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{
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...
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"scoreAddress": "cxaa736426a9caed44c59520e94da2d64888d9241b",
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...
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}
Then you can invoke
getGreeting method via the following call command.1
$ goloop rpc call --to <score_address> --method getGreeting --uri http://localhost:9082/api/v3
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"Hello Alice!"
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