-
Notifications
You must be signed in to change notification settings - Fork 2.2k
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Merge pull request #2141 from chezsmithy/feat-bedrock-embeddings
feat-bedrock-embeddings
- Loading branch information
Showing
6 changed files
with
204 additions
and
6 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,93 @@ | ||
| import { | ||
| BedrockRuntimeClient, | ||
| InvokeModelCommand, | ||
| } from "@aws-sdk/client-bedrock-runtime"; | ||
| import { fromIni } from "@aws-sdk/credential-providers"; | ||
| import { EmbeddingsProviderName, EmbedOptions, FetchFunction } from "../../index.js"; | ||
| import BaseEmbeddingsProvider from "./BaseEmbeddingsProvider.js"; | ||
|
|
||
| class BedrockEmbeddingsProvider extends BaseEmbeddingsProvider { | ||
|
|
||
| static providerName: EmbeddingsProviderName = "bedrock"; | ||
|
|
||
| static defaultOptions: Partial<EmbedOptions> | undefined = { | ||
| model: "amazon.titan-embed-text-v2:0", | ||
| region: "us-east-1" | ||
| }; | ||
| profile?: string | undefined; | ||
|
|
||
| constructor(options: EmbedOptions, fetch: FetchFunction) { | ||
| super(options, fetch); | ||
| if (!options.apiBase) { | ||
| options.apiBase = `https://bedrock-runtime.${options.region}.amazonaws.com`; | ||
| } | ||
|
|
||
| if (options.profile) { | ||
| this.profile = options.profile; | ||
| } else { | ||
| this.profile = "bedrock"; | ||
| } | ||
| } | ||
|
|
||
| async embed(chunks: string[]) { | ||
| const credentials = await this._getCredentials(); | ||
| const client = new BedrockRuntimeClient({ | ||
| region: this.options.region, | ||
| credentials: { | ||
| accessKeyId: credentials.accessKeyId, | ||
| secretAccessKey: credentials.secretAccessKey, | ||
| sessionToken: credentials.sessionToken || "", | ||
| }, | ||
| }); | ||
|
|
||
| return ( | ||
| await Promise.all( | ||
| chunks.map(async (chunk) => { | ||
| const input = this._generateInvokeModelCommandInput(chunk, this.options); | ||
| const command = new InvokeModelCommand(input); | ||
| const response = await client.send(command); | ||
|
|
||
| if (response.body) { | ||
| const responseBody = JSON.parse(new TextDecoder().decode(response.body)); | ||
| return responseBody.embedding; | ||
| } | ||
| }), | ||
| ) | ||
| ).flat(); | ||
| } | ||
|
|
||
| private _generateInvokeModelCommandInput( | ||
| prompt: string, | ||
| options: EmbedOptions, | ||
| ): any { | ||
| const payload = { | ||
| "inputText": prompt, | ||
| "dimensions": 1024, | ||
| "normalize": true | ||
| }; | ||
|
|
||
| return { | ||
| body: JSON.stringify(payload), | ||
| modelId: this.options.model, | ||
| accept: "application/json", | ||
| contentType: "application/json" | ||
| }; | ||
| } | ||
|
|
||
| private async _getCredentials() { | ||
| try { | ||
| return await | ||
| fromIni({ | ||
| profile: this.profile | ||
| })(); | ||
| } catch (e) { | ||
| console.warn( | ||
| `AWS profile with name ${this.profile} not found in ~/.aws/credentials, using default profile`, | ||
| ); | ||
| return await fromIni()(); | ||
| } | ||
| } | ||
|
|
||
| } | ||
|
|
||
| export default BedrockEmbeddingsProvider; |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters