本文為英文版的機器翻譯版本,如內容有任何歧義或不一致之處,概以英文版為準。
Hello Amazon Bedrock
下列程式碼範例示範如何開始使用 Amazon Bedrock。
- .NET
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- AWS SDK for .NET
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注意
GitHub 上提供更多範例。尋找完整範例,並了解如何在 AWS 程式碼範例儲存庫
中設定和執行。 using Amazon; using Amazon.Bedrock; using Amazon.Bedrock.Model; namespace ListFoundationModelsExample { /// <summary> /// This example shows how to list foundation models. /// </summary> internal class HelloBedrock { /// <summary> /// Main method to call the ListFoundationModelsAsync method. /// </summary> /// <param name="args"> The command line arguments. </param> static async Task Main(string[] args) { // Specify a region endpoint where Amazon Bedrock is available. For a list of supported region see https://docs.aws.amazon.com/bedrock/latest/userguide/what-is-bedrock.html#bedrock-regions AmazonBedrockClient bedrockClient = new(RegionEndpoint.USWest2); await ListFoundationModelsAsync(bedrockClient); } /// <summary> /// List foundation models. /// </summary> /// <param name="bedrockClient"> The Amazon Bedrock client. </param> private static async Task ListFoundationModelsAsync(AmazonBedrockClient bedrockClient) { Console.WriteLine("List foundation models with no filter"); try { ListFoundationModelsResponse response = await bedrockClient.ListFoundationModelsAsync(new ListFoundationModelsRequest() { }); if (response?.HttpStatusCode == System.Net.HttpStatusCode.OK) { foreach (var fm in response.ModelSummaries) { WriteToConsole(fm); } } else { Console.WriteLine("Something wrong happened"); } } catch (AmazonBedrockException e) { Console.WriteLine(e.Message); } } /// <summary> /// Write the foundation model summary to console. /// </summary> /// <param name="foundationModel"> The foundation model summary to write to console. </param> private static void WriteToConsole(FoundationModelSummary foundationModel) { Console.WriteLine($"{foundationModel.ModelId}, Customization: {String.Join(", ", foundationModel.CustomizationsSupported)}, Stream: {foundationModel.ResponseStreamingSupported}, Input: {String.Join(", ", foundationModel.InputModalities)}, Output: {String.Join(", ", foundationModel.OutputModalities)}"); } } }
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如需 API 詳細資訊,請參閱 AWS SDK for .NET API 參考中的 ListFoundationModels。
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- Go
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- SDK for Go V2
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注意
GitHub 上提供更多範例。尋找完整範例,並了解如何在 AWS 程式碼範例儲存庫
中設定和執行。 package main import ( "context" "fmt" "github.com/aws/aws-sdk-go-v2/config" "github.com/aws/aws-sdk-go-v2/service/bedrock" ) const region = "us-east-1" // main uses the AWS SDK for Go (v2) to create an Amazon Bedrock client and // list the available foundation models in your account and the chosen region. // This example uses the default settings specified in your shared credentials // and config files. func main() { ctx := context.Background() sdkConfig, err := config.LoadDefaultConfig(ctx, config.WithRegion(region)) if err != nil { fmt.Println("Couldn't load default configuration. Have you set up your AWS account?") fmt.Println(err) return } bedrockClient := bedrock.NewFromConfig(sdkConfig) result, err := bedrockClient.ListFoundationModels(ctx, &bedrock.ListFoundationModelsInput{}) if err != nil { fmt.Printf("Couldn't list foundation models. Here's why: %v\n", err) return } if len(result.ModelSummaries) == 0 { fmt.Println("There are no foundation models.") } for _, modelSummary := range result.ModelSummaries { fmt.Println(*modelSummary.ModelId) } }
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如需 API 詳細資訊,請參閱 適用於 Go 的 AWS SDK API 參考中的 ListFoundationModels
。
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- JavaScript
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- SDK for JavaScript (v3)
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注意
GitHub 上提供更多範例。尋找完整範例,並了解如何在 AWS 程式碼範例儲存庫
中設定和執行。 import { fileURLToPath } from "node:url"; import { BedrockClient, ListFoundationModelsCommand, } from "@aws-sdk/client-bedrock"; const REGION = "us-east-1"; const client = new BedrockClient({ region: REGION }); export const main = async () => { const command = new ListFoundationModelsCommand({}); const response = await client.send(command); const models = response.modelSummaries; console.log("Listing the available Bedrock foundation models:"); for (const model of models) { console.log("=".repeat(42)); console.log(` Model: ${model.modelId}`); console.log("-".repeat(42)); console.log(` Name: ${model.modelName}`); console.log(` Provider: ${model.providerName}`); console.log(` Model ARN: ${model.modelArn}`); console.log(` Input modalities: ${model.inputModalities}`); console.log(` Output modalities: ${model.outputModalities}`); console.log(` Supported customizations: ${model.customizationsSupported}`); console.log(` Supported inference types: ${model.inferenceTypesSupported}`); console.log(` Lifecycle status: ${model.modelLifecycle.status}`); console.log(`${"=".repeat(42)}\n`); } const active = models.filter( (m) => m.modelLifecycle.status === "ACTIVE", ).length; const legacy = models.filter( (m) => m.modelLifecycle.status === "LEGACY", ).length; console.log( `There are ${active} active and ${legacy} legacy foundation models in ${REGION}.`, ); return response; }; // Invoke main function if this file was run directly. if (process.argv[1] === fileURLToPath(import.meta.url)) { await main(); }
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如需 API 詳細資訊,請參閱 AWS SDK for JavaScript API 參考中的 ListFoundationModels。
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- Python
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- SDK for Python (Boto3)
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注意
GitHub 上提供更多範例。尋找完整範例,並了解如何在 AWS 程式碼範例儲存庫
中設定和執行。 """ Lists the available Amazon Bedrock models. """ import logging import json import boto3 from botocore.exceptions import ClientError logging.basicConfig(level=logging.INFO) logger = logging.getLogger(__name__) def list_foundation_models(bedrock_client): """ Gets a list of available Amazon Bedrock foundation models. :return: The list of available bedrock foundation models. """ try: response = bedrock_client.list_foundation_models() models = response["modelSummaries"] logger.info("Got %s foundation models.", len(models)) return models except ClientError: logger.error("Couldn't list foundation models.") raise def main(): """Entry point for the example. Uses the AWS SDK for Python (Boto3) to create an Amazon Bedrock client. Then lists the available Bedrock models in the region set in the callers profile and credentials. """ bedrock_client = boto3.client(service_name="bedrock") fm_models = list_foundation_models(bedrock_client) for model in fm_models: print(f"Model: {model['modelName']}") print(json.dumps(model, indent=2)) print("---------------------------\n") logger.info("Done.") if __name__ == "__main__": main()
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如需 API 詳細資訊,請參閱 SDK AWS for Python (Boto3) API 參考中的 ListFoundationModels。
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如需 AWS SDK 開發人員指南和程式碼範例的完整清單,請參閱 搭配 AWS SDK 使用 Amazon Bedrock。此主題也包含有關入門的資訊和舊版 SDK 的詳細資訊。
基本概念
動作