Class NodeProvider

Returns NodeProvider

const providerOption = { blockAddress: 'http://example.com', proxy: 'http://proxy.example.com' };
const nodeProvider = new NodeProvider(providerOption);
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Returns Promise<void>

如果健康检查成功，则返回一个已解析的 Promise

nodeProvider.healthCheck()
    .then(() => console.log('Node health check passed.'))
    .catch(err => console.error('Failed to check node health:', err));
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Returns Promise<ServiceMetadataJson>

返回一个 Promise，解析为 NodeMetadata

nodeProvider.whoami()
    .then(metadata => console.log('Node Metadata:', metadata))
    .catch(err => console.error('Failed to get node metadata', err));
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