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feat: chat prompt sample for Vertex LLMs #3246
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/* | ||
* Copyright 2023 Google LLC | ||
* | ||
* Licensed under the Apache License, Version 2.0 (the "License"); | ||
* you may not use this file except in compliance with the License. | ||
* You may obtain a copy of the License at | ||
* | ||
* https://www.apache.org/licenses/LICENSE-2.0 | ||
* | ||
* Unless required by applicable law or agreed to in writing, software | ||
* distributed under the License is distributed on an "AS IS" BASIS, | ||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
* See the License for the specific language governing permissions and | ||
* limitations under the License. | ||
*/ | ||
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'use strict'; | ||
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async function main(project, location = 'us-central1') { | ||
// [START aiplatform_sdk_chat] | ||
/** | ||
* TODO(developer): Uncomment these variables before running the sample.\ | ||
* (Not necessary if passing values as arguments) | ||
*/ | ||
// const project = 'YOUR_PROJECT_ID'; | ||
// const location = 'YOUR_PROJECT_LOCATION'; | ||
const aiplatform = require('@google-cloud/aiplatform'); | ||
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// Imports the Google Cloud Prediction service client | ||
const {PredictionServiceClient} = aiplatform.v1; | ||
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// Import the helper module for converting arbitrary protobuf.Value objects. | ||
const {helpers} = aiplatform; | ||
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// Specifies the location of the api endpoint | ||
const clientOptions = { | ||
apiEndpoint: 'us-central1-aiplatform.googleapis.com', | ||
}; | ||
const publisher = 'google'; | ||
const model = 'chat-bison@001'; | ||
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// Instantiates a client | ||
const predictionServiceClient = new PredictionServiceClient(clientOptions); | ||
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async function callPredict() { | ||
// Configure the parent resource | ||
const endpoint = `projects/${project}/locations/${location}/publishers/${publisher}/models/${model}`; | ||
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const prompt = { | ||
context: | ||
'My name is Ned. You are my personal assistant. My favorite movies are Lord of the Rings and Hobbit.', | ||
examples: [ | ||
{ | ||
input: {content: 'Who do you work for?'}, | ||
output: {content: 'I work for Ned.'}, | ||
}, | ||
{ | ||
input: {content: 'What do I like?'}, | ||
output: {content: 'Ned likes watching movies.'}, | ||
}, | ||
], | ||
messages: [ | ||
{ | ||
author: 'user', | ||
content: 'Are my favorite movies based on a book series?', | ||
}, | ||
], | ||
}; | ||
const instanceValue = helpers.toValue(prompt); | ||
const instances = [instanceValue]; | ||
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const parameter = { | ||
temperature: 0.2, | ||
maxOutputTokens: 256, | ||
topP: 0.95, | ||
topK: 40, | ||
}; | ||
const parameters = helpers.toValue(parameter); | ||
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const request = { | ||
endpoint, | ||
instances, | ||
parameters, | ||
}; | ||
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// Predict request | ||
const [response] = await predictionServiceClient.predict(request); | ||
console.log('Get chat prompt response'); | ||
const predictions = response.predictions; | ||
console.log('\tPredictions :'); | ||
for (const prediction of predictions) { | ||
console.log(`\t\tPrediction : ${JSON.stringify(prediction)}`); | ||
} | ||
} | ||
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callPredict(); | ||
// [END aiplatform_sdk_chat] | ||
} | ||
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process.on('unhandledRejection', err => { | ||
There was a problem hiding this comment. Choose a reason for hiding this commentThe reason will be displayed to describe this comment to others. Learn more. issue: remove CLI per https://googlecloudplatform.github.io/samples-style-guide/#no-cli Example of how to do it: #2888 There was a problem hiding this comment. Choose a reason for hiding this commentThe reason will be displayed to describe this comment to others. Learn more. Noted. As discussed, we can handle this later with task "Remove the CLI structure from the Node.js samples for LLMs to track the changes." (b/285884334) |
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console.error(err.message); | ||
process.exitCode = 1; | ||
}); | ||
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main(...process.argv.slice(2)); |
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/* | ||
* Copyright 2023 Google LLC | ||
* | ||
* Licensed under the Apache License, Version 2.0 (the "License"); | ||
* you may not use this file except in compliance with the License. | ||
* You may obtain a copy of the License at | ||
* | ||
* https://www.apache.org/licenses/LICENSE-2.0 | ||
* | ||
* Unless required by applicable law or agreed to in writing, software | ||
* distributed under the License is distributed on an "AS IS" BASIS, | ||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
* See the License for the specific language governing permissions and | ||
* limitations under the License. | ||
*/ | ||
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'use strict'; | ||
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const path = require('path'); | ||
const {assert} = require('chai'); | ||
const {describe, it} = require('mocha'); | ||
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const cp = require('child_process'); | ||
const execSync = cmd => cp.execSync(cmd, {encoding: 'utf-8'}); | ||
const cwd = path.join(__dirname, '..'); | ||
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const project = process.env.CAIP_PROJECT_ID; | ||
const location = 'us-central1'; | ||
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describe('AI platform predict chat prompt', () => { | ||
it('should make predictions using a large language model', async () => { | ||
const stdout = execSync( | ||
`node ./predict-chat-prompt.js ${project} ${location}`, | ||
{ | ||
cwd, | ||
} | ||
); | ||
assert.match(stdout, /Get chat prompt response/); | ||
}); | ||
}); |
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issue: As much as I LOVE LotR and all things Tolkien (ecce my GitHub alias), we should avoid using copyrighted or trademarked strings in our samples.
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Agreed. Changed.