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feat(connector-besu): add getTransaction web service
Fixes hyperledger-cacti#1062 Depends on hyperledger-cacti#1061 Signed-off-by: Jeffrey Ushry <[email protected]>
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101 changes: 101 additions & 0 deletions
101
...plugin-ledger-connector-besu/src/main/typescript/web-services/get-transaction-endpoint.ts
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Original file line number | Diff line number | Diff line change |
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import { Express, Request, Response } from "express"; | ||
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import { | ||
Logger, | ||
Checks, | ||
LogLevelDesc, | ||
LoggerProvider, | ||
IAsyncProvider, | ||
} from "@hyperledger/cactus-common"; | ||
import { | ||
IEndpointAuthzOptions, | ||
IExpressRequestHandler, | ||
IWebServiceEndpoint, | ||
} from "@hyperledger/cactus-core-api"; | ||
import { registerWebServiceEndpoint } from "@hyperledger/cactus-core"; | ||
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import { PluginLedgerConnectorBesu } from "../plugin-ledger-connector-besu"; | ||
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import OAS from "../../json/openapi.json"; | ||
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export interface IGetTransactionEndpointOptions { | ||
logLevel?: LogLevelDesc; | ||
connector: PluginLedgerConnectorBesu; | ||
} | ||
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export class GetTransactionEndpoint implements IWebServiceEndpoint { | ||
public static readonly CLASS_NAME = "GetTransactionEndpoint"; | ||
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private readonly log: Logger; | ||
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public get className(): string { | ||
return GetTransactionEndpoint.CLASS_NAME; | ||
} | ||
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constructor(public readonly options: IGetTransactionEndpointOptions) { | ||
const fnTag = `${this.className}#constructor()`; | ||
Checks.truthy(options, `${fnTag} arg options`); | ||
Checks.truthy(options.connector, `${fnTag} arg options.connector`); | ||
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const level = this.options.logLevel || "INFO"; | ||
const label = this.className; | ||
this.log = LoggerProvider.getOrCreate({ level, label }); | ||
} | ||
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public getOasPath() { | ||
return OAS.paths[ | ||
"/api/v1/plugins/@hyperledger/cactus-plugin-ledger-connector-besu/get-transaction" | ||
]; | ||
} | ||
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public getPath(): string { | ||
const apiPath = this.getOasPath(); | ||
return apiPath.post["x-hyperledger-cactus"].http.path; | ||
} | ||
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public getVerbLowerCase(): string { | ||
const apiPath = this.getOasPath(); | ||
return apiPath.post["x-hyperledger-cactus"].http.verbLowerCase; | ||
} | ||
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public getOperationId(): string { | ||
return this.getOasPath().post.operationId; | ||
} | ||
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getAuthorizationOptionsProvider(): IAsyncProvider<IEndpointAuthzOptions> { | ||
// TODO: make this an injectable dependency in the constructor | ||
return { | ||
get: async () => ({ | ||
isProtected: true, | ||
requiredRoles: [], | ||
}), | ||
}; | ||
} | ||
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public async registerExpress( | ||
expressApp: Express, | ||
): Promise<IWebServiceEndpoint> { | ||
await registerWebServiceEndpoint(expressApp, this); | ||
return this; | ||
} | ||
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public getExpressRequestHandler(): IExpressRequestHandler { | ||
return this.handleRequest.bind(this); | ||
} | ||
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public async handleRequest(req: Request, res: Response): Promise<void> { | ||
const reqTag = `${this.getVerbLowerCase()} - ${this.getPath()}`; | ||
this.log.debug(reqTag); | ||
const reqBody = req.body; | ||
try { | ||
const resBody = await this.options.connector.getTransaction(reqBody); | ||
res.json(resBody); | ||
} catch (ex) { | ||
this.log.error(`Crash while serving ${reqTag}`, ex); | ||
res.status(500).json({ | ||
message: "Internal Server Error", | ||
error: ex?.stack || ex?.message, | ||
}); | ||
} | ||
} | ||
} |
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