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feat(connector-besu): add getTransaction web service
Fixes hyperledger#1062 Depends on hyperledger#1061 Signed-off-by: Jeffrey Ushry <jeffrey.ushry@accenture.com>
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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 |
|---|---|---|
| @@ -0,0 +1,101 @@ | ||
| import { Express, Request, Response } from "express"; | ||
|
|
||
| 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, `${fnTag} arg options.connector`); | ||
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| const level = this.options.logLevel || "INFO"; | ||
| const label = this.className; | ||
| this.log = LoggerProvider.getOrCreate({ level, label }); | ||
| } | ||
|
|
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| public getOasPath() { | ||
| return OAS.paths[ | ||
| "/api/v1/plugins/@hyperledger/cactus-plugin-ledger-connector-besu/get-transaction" | ||
| ]; | ||
| } | ||
|
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| public getPath(): string { | ||
| const apiPath = this.getOasPath(); | ||
| return apiPath.post["x-hyperledger-cactus"].http.path; | ||
| } | ||
|
|
||
| public getVerbLowerCase(): string { | ||
| const apiPath = this.getOasPath(); | ||
| return apiPath.post["x-hyperledger-cactus"].http.verbLowerCase; | ||
| } | ||
|
|
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| public getOperationId(): string { | ||
| return this.getOasPath().post.operationId; | ||
| } | ||
|
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| getAuthorizationOptionsProvider(): IAsyncProvider<IEndpointAuthzOptions> { | ||
| // TODO: make this an injectable dependency in the constructor | ||
| return { | ||
| get: async () => ({ | ||
| isProtected: true, | ||
| requiredRoles: [], | ||
| }), | ||
| }; | ||
| } | ||
|
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| public async registerExpress( | ||
| expressApp: Express, | ||
| ): Promise<IWebServiceEndpoint> { | ||
| await registerWebServiceEndpoint(expressApp, this); | ||
| return this; | ||
| } | ||
|
|
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| public getExpressRequestHandler(): IExpressRequestHandler { | ||
| return this.handleRequest.bind(this); | ||
| } | ||
|
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| public async handleRequest(req: Request, res: Response): Promise<void> { | ||
| const reqTag = `${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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