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LlamaCloudIndex.ts
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LlamaCloudIndex.ts
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import { PlatformApi } from "@llamaindex/cloud";
import type { Document } from "../Node.js";
import type { BaseRetriever } from "../Retriever.js";
import { RetrieverQueryEngine } from "../engines/query/RetrieverQueryEngine.js";
import type { TransformComponent } from "../ingestion/types.js";
import type { BaseNodePostprocessor } from "../postprocessors/types.js";
import type { BaseSynthesizer } from "../synthesizers/types.js";
import type { QueryEngine } from "../types.js";
import type { CloudRetrieveParams } from "./LlamaCloudRetriever.js";
import { LlamaCloudRetriever } from "./LlamaCloudRetriever.js";
import { getPipelineCreate } from "./config.js";
import type { CloudConstructorParams } from "./types.js";
import { getAppBaseUrl, getClient } from "./utils.js";
import { getEnv } from "@llamaindex/env";
import { OpenAIEmbedding } from "../embeddings/OpenAIEmbedding.js";
import { SimpleNodeParser } from "../nodeParsers/SimpleNodeParser.js";
export class LlamaCloudIndex {
params: CloudConstructorParams;
constructor(params: CloudConstructorParams) {
this.params = params;
}
static async fromDocuments(
params: {
documents: Document[];
transformations?: TransformComponent[];
verbose?: boolean;
} & CloudConstructorParams,
): Promise<LlamaCloudIndex> {
const defaultTransformations: TransformComponent[] = [
new OpenAIEmbedding({
apiKey: getEnv("OPENAI_API_KEY"),
}),
new SimpleNodeParser(),
];
const appUrl = getAppBaseUrl(params.baseUrl);
const client = await getClient({ ...params, baseUrl: appUrl });
const pipelineCreateParams = await getPipelineCreate({
pipelineName: params.name,
pipelineType: "MANAGED",
inputNodes: params.documents,
transformations: params.transformations ?? defaultTransformations,
});
const project = await client.project.upsertProject({
name: params.projectName ?? "default",
});
if (!project.id) {
throw new Error("Project ID should be defined");
}
const pipeline = await client.project.upsertPipelineForProject(
project.id,
pipelineCreateParams,
);
if (!pipeline.id) {
throw new Error("Pipeline ID must be defined");
}
if (params.verbose) {
console.log(`Created pipeline ${pipeline.id} with name ${params.name}`);
}
const executionsIds: {
exectionId: string;
dataSourceId: string;
}[] = [];
for (const dataSource of pipeline.dataSources) {
const dataSourceExection =
await client.dataSource.createDataSourceExecution(dataSource.id);
if (!dataSourceExection.id) {
throw new Error("Data Source Execution ID must be defined");
}
executionsIds.push({
exectionId: dataSourceExection.id,
dataSourceId: dataSource.id,
});
}
let isDone = false;
while (!isDone) {
const statuses = [];
for await (const execution of executionsIds) {
const dataSourceExecution =
await client.dataSource.getDataSourceExecution(
execution.dataSourceId,
execution.exectionId,
);
statuses.push(dataSourceExecution.status);
if (
statuses.every((status) => status === PlatformApi.StatusEnum.Success)
) {
isDone = true;
if (params.verbose) {
console.info("Data Source Execution completed");
}
break;
} else if (
statuses.some((status) => status === PlatformApi.StatusEnum.Error)
) {
throw new Error("Data Source Execution failed");
} else {
await new Promise((resolve) => setTimeout(resolve, 1000));
if (params.verbose) {
process.stdout.write(".");
}
}
}
}
isDone = false;
const execution = await client.pipeline.runManagedPipelineIngestion(
pipeline.id,
);
const ingestionId = execution.id;
if (!ingestionId) {
throw new Error("Ingestion ID must be defined");
}
while (!isDone) {
const pipelineStatus = await client.pipeline.getManagedIngestionExecution(
pipeline.id,
ingestionId,
);
if (pipelineStatus.status === PlatformApi.StatusEnum.Success) {
isDone = true;
if (params.verbose) {
console.info("Ingestion completed");
}
break;
} else if (pipelineStatus.status === PlatformApi.StatusEnum.Error) {
throw new Error("Ingestion failed");
} else {
await new Promise((resolve) => setTimeout(resolve, 1000));
if (params.verbose) {
process.stdout.write(".");
}
}
}
if (params.verbose) {
console.info(
`Ingestion completed, find your index at ${appUrl}/project/${project.id}/deploy/${pipeline.id}`,
);
}
return new LlamaCloudIndex({ ...params });
}
asRetriever(params: CloudRetrieveParams = {}): BaseRetriever {
return new LlamaCloudRetriever({ ...this.params, ...params });
}
asQueryEngine(
params?: {
responseSynthesizer?: BaseSynthesizer;
preFilters?: unknown;
nodePostprocessors?: BaseNodePostprocessor[];
} & CloudRetrieveParams,
): QueryEngine {
const retriever = new LlamaCloudRetriever({
...this.params,
...params,
});
return new RetrieverQueryEngine(
retriever,
params?.responseSynthesizer,
params?.preFilters,
params?.nodePostprocessors,
);
}
}