Files
OpenPipe-llm/app/src/modelProviders/anthropic/getCompletion.ts
2023-07-29 15:53:01 -07:00

87 lines
2.2 KiB
TypeScript

import { env } from "~/env.mjs";
import { type CompletionResponse } from "../types";
import Anthropic, { APIError } from "@anthropic-ai/sdk";
import { type Completion, type CompletionCreateParams } from "@anthropic-ai/sdk/resources";
import { isObject, isString } from "lodash-es";
const anthropic = new Anthropic({
apiKey: env.ANTHROPIC_API_KEY,
});
export async function getCompletion(
input: CompletionCreateParams,
onStream: ((partialOutput: Completion) => void) | null,
): Promise<CompletionResponse<Completion>> {
const start = Date.now();
let finalCompletion: Completion | null = null;
try {
if (onStream) {
const resp = await anthropic.completions.create(
{ ...input, stream: true },
{
maxRetries: 0,
},
);
for await (const part of resp) {
if (finalCompletion === null) {
finalCompletion = part;
} else {
finalCompletion = { ...part, completion: finalCompletion.completion + part.completion };
}
onStream(finalCompletion);
}
if (!finalCompletion) {
return {
type: "error",
message: "Streaming failed to return a completion",
autoRetry: false,
};
}
} else {
const resp = await anthropic.completions.create(
{ ...input, stream: false },
{
maxRetries: 0,
},
);
finalCompletion = resp;
}
const timeToComplete = Date.now() - start;
return {
type: "success",
statusCode: 200,
value: finalCompletion,
timeToComplete,
};
} catch (error: unknown) {
console.log("CAUGHT ERROR", error);
if (error instanceof APIError) {
const message =
isObject(error.error) &&
"error" in error.error &&
isObject(error.error.error) &&
"message" in error.error.error &&
isString(error.error.error.message)
? error.error.error.message
: error.message;
return {
type: "error",
message,
autoRetry: error.status === 429 || error.status === 503,
statusCode: error.status,
};
} else {
return {
type: "error",
message: (error as Error).message,
autoRetry: true,
};
}
}
}