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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 | 40x 40x 40x 40x 40x 40x 40x 40x 40x 40x 40x 40x | import { Cardano } from '@cardano-sdk/core';
import { CommonProgramOptions, OgmiosProgramOptions, PosgresProgramOptions } from '../options';
import { DnsResolver, createDnsResolver } from '../utils';
import {
HandlePolicyIdsOptionDescriptions,
HandlePolicyIdsProgramOptions,
handlePolicyIdsFromFile
} from '../options/policyIds';
import { HttpServer, HttpServerConfig } from '../../Http';
import { Logger } from 'ts-log';
import { MissingProgramOption, UnknownServiceName } from '../errors';
import { ProjectionHttpService, ProjectionName, createTypeormProjection, storeOperators } from '../../Projection';
import { SrvRecord } from 'dns';
import { createLogger } from 'bunyan';
import { createStorePoolMetricsUpdateJob, createStoreStakePoolMetadataJob } from '@cardano-sdk/projection-typeorm';
import { getConnectionConfig, getOgmiosObservableCardanoNode } from '../services';
export const BLOCKS_BUFFER_LENGTH_DEFAULT = 10;
export const PROJECTOR_API_URL_DEFAULT = new URL('http://localhost:3002');
export type ProjectorArgs = CommonProgramOptions &
PosgresProgramOptions<''> &
HandlePolicyIdsProgramOptions &
OgmiosProgramOptions & {
blocksBufferLength: number;
dropSchema: boolean;
dryRun: boolean;
exitAtBlockNo: Cardano.BlockNo;
metadataJobRetryDelay: number;
poolsMetricsInterval: number;
projectionNames: ProjectionName[];
synchronize: boolean;
};
export interface LoadProjectorDependencies {
dnsResolver?: (serviceName: string) => Promise<SrvRecord>;
logger?: Logger;
}
interface ProjectionMapFactoryOptions {
args: ProjectorArgs;
dnsResolver: DnsResolver;
logger: Logger;
}
const createProjectionHttpService = async (options: ProjectionMapFactoryOptions) => {
const { args, dnsResolver, logger } = options;
storeOperators.storePoolMetricsUpdateJob = createStorePoolMetricsUpdateJob(args.poolsMetricsInterval)();
storeOperators.storeStakePoolMetadataJob = createStoreStakePoolMetadataJob(args.metadataJobRetryDelay)();
const cardanoNode = getOgmiosObservableCardanoNode(dnsResolver, logger, {
ogmiosSrvServiceName: args.ogmiosSrvServiceName,
ogmiosUrl: args.ogmiosUrl
});
const connectionConfig$ = getConnectionConfig(dnsResolver, 'projector', '', args);
const { blocksBufferLength, dropSchema, dryRun, exitAtBlockNo, handlePolicyIds, projectionNames, synchronize } = args;
const projection$ = createTypeormProjection({
blocksBufferLength,
cardanoNode,
connectionConfig$,
devOptions: { dropSchema, synchronize },
exitAtBlockNo,
logger,
projectionOptions: {
handlePolicyIds
},
projections: projectionNames
});
return new ProjectionHttpService({ dryRun, projection$, projectionNames }, { logger });
};
export const loadProjector = async (args: ProjectorArgs, deps: LoadProjectorDependencies = {}): Promise<HttpServer> => {
const supportedProjections = Object.values(ProjectionName);
await handlePolicyIdsFromFile(args);
const {
apiUrl,
buildInfo,
enableMetrics,
handlePolicyIds,
loggerMinSeverity,
projectionNames,
serviceDiscoveryBackoffFactor,
serviceDiscoveryTimeout
} = args;
for (const projectionName of projectionNames) {
Iif (!supportedProjections.includes(projectionName)) {
throw new UnknownServiceName(projectionName, Object.values(ProjectionName));
}
Iif (projectionName === ProjectionName.Handle && !handlePolicyIds) {
throw new MissingProgramOption(ProjectionName.Handle, [
HandlePolicyIdsOptionDescriptions.HandlePolicyIds,
HandlePolicyIdsOptionDescriptions.HandlePolicyIdsFile
]);
}
}
const logger =
deps?.logger ||
createLogger({
level: loggerMinSeverity,
name: 'projector'
});
const dnsResolver =
deps?.dnsResolver ||
createDnsResolver(
{
factor: serviceDiscoveryBackoffFactor,
maxRetryTime: serviceDiscoveryTimeout
},
logger
);
const service = await createProjectionHttpService({ args, dnsResolver, logger });
const config: HttpServerConfig = {
listen: {
host: apiUrl.hostname,
port: apiUrl ? Number.parseInt(apiUrl.port) : undefined
},
meta: { ...buildInfo, startupTime: Date.now() }
};
Iif (enableMetrics) {
config.metrics = { enabled: enableMetrics };
}
return new HttpServer(config, { logger, services: [service] });
};
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