使用 Dotprompt 管理提示

---
model: googleai/gemini-1.5-flash
config:
  temperature: 0.9
input:
  schema:
    location: string
    style?: string
    name?: string
  default:
    location: a restaurant
---

You are the world's most welcoming AI assistant and are currently working at {{location}}.

Greet a guest{{#if name}} named {{name}}{{/if}}{{#if style}} in the style of {{style}}{{/if}}.

your-project/
├── prompts/
│   └── hello.prompt
├── main.go
├── go.mod
└── go.sum

g, err := genkit.Init(ctx.Background(), ai.WithPromptDir("./llm_prompts"))

---
model: vertexai/gemini-1.5-flash
---
You are the world's most welcoming AI assistant. Greet the user and offer your
assistance.

import (
    "context"

    "github.com/firebase/genkit/go/ai"
    "github.com/firebase/genkit/go/genkit"
    "github.com/firebase/genkit/go/plugins/googlegenai"
)

func main() {
    g, err := genkit.Init(context.Background(), ai.WithPlugins(&googlegenai.GoogleAI{}))
    if err != nil {
        log.Fatal(err)
    }

    // Blocks end of program execution to use the developer UI.
    select {}
}

genkit start -- go run .

import (
    "context"

      "github.com/firebase/genkit/go/ai"
    "github.com/firebase/genkit/go/genkit"
    "github.com/firebase/genkit/go/plugins/googlegenai"
)

func main() {
    g, err := genkit.Init(context.Background(), ai.WithPlugins(&googlegenai.GoogleAI{}))
    if err != nil {
        log.Fatal(err)
    }

    // Blocks end of program execution to use the developer UI.
    select {}
}

helloPrompt := genkit.LookupPrompt(g, "hello")

resp, err := helloPrompt.Execute(context.Background(),
    ai.WithModelName("googleai/gemini-2.0-flash"),
    ai.WithInput(map[string]any{"name": "John"}),
    ai.WithConfig(&googlegenai.GeminiConfig{Temperature: 0.5})
)

genkit start -- go run .

---
model: googleai/gemini-2.0-flash
config:
  temperature: 1.4
  topK: 50
  topP: 0.4
  maxOutputTokens: 400
  stopSequences:
    -   "<end>"
    -   "<fin>"
---

resp, err := helloPrompt.Execute(context.Background(),
    ai.WithConfig(&googlegenai.GeminiConfig{
        Temperature:     1.4,
        TopK:            50,
        TopP:            0.4,
        MaxOutputTokens: 400,
        StopSequences:   []string{"<end>", "<fin>"},
    }))

---
model: googleai/gemini-2.0-flash
input:
  schema:
    theme?: string
  default:
    theme: "pirate"
output:
  schema:
    dishname: string
    description: string
    calories: integer
    allergens(array): string
---
Invent a menu item for a {{theme}} themed
restaurant.

menuPrompt = genkit.LookupPrompt(g, "menu")
if menuPrompt == nil {
    log.Fatal("no prompt named 'menu' found")
}

resp, err := menuPrompt.Execute(context.Background(),
    ai.WithInput(map[string]any{"theme": "medieval"}),
)
if err != nil {
    log.Fatal(err)
}

var output map[string]any
if err := resp.Output(&output); err != nil {
    log.Fatal(err)
}

log.Println(output["dishname"])
log.Println(output["description"])

schema:
  title: string # string, number, and boolean types are defined like this
  subtitle?: string # optional fields are marked with a `?`
  draft?: boolean, true when in draft state
  status?(enum, approval status): [PENDING, APPROVED]
  date: string, the date of publication e.g. '2024-04-09' # descriptions follow a comma
  tags(array, relevant tags for article): string # arrays are denoted via parentheses
  authors(array):
    name: string
    email?: string
  metadata?(object): # objects are also denoted via parentheses
    updatedAt?: string, ISO timestamp of last update
    approvedBy?: integer, id of approver
  extra?: any, arbitrary extra data
  (*): string, wildcard field

type Article struct {
    Title    string   `json:"title"`
    Subtitle string   `json:"subtitle,omitempty" jsonschema:"required=false"`
    Draft    bool     `json:"draft,omitempty"`  // True when in draft state
    Status   string   `json:"status,omitempty" jsonschema:"enum=PENDING,enum=APPROVED"` // Approval status
    Date     string   `json:"date"`   // The date of publication e.g. '2025-04-07'
    Tags     []string `json:"tags"`   // Relevant tags for article
    Authors  []struct {
      Name  string `json:"name"`
      Email string `json:"email,omitempty"`
    } `json:"authors"`
    Metadata struct {
      UpdatedAt  string `json:"updatedAt,omitempty"`  // ISO timestamp of last update
      ApprovedBy int    `json:"approvedBy,omitempty"` // ID of approver
    } `json:"metadata,omitempty"`
    Extra any `json:"extra"` // Arbitrary extra data
}

output:
  schema:
    type: object
    properties:
      field1:
        type: number
        minimum: 20

---
model: googleai/gemini-2.0-flash
input:
  schema:
    theme?: string
  default:
    theme: "pirate"
output:
  schema:
    dishname: string
    description: string
    calories: integer
    allergens(array): string
---
Invent a menu item for a {{theme}} themed restaurant.

menuPrompt = genkit.LookupPrompt(g, "menu")

resp, err := menuPrompt.Execute(context.Background(),
    ai.WithInput(map[string]any{"theme": "medieval"}),
)

---
model: googleai/gemini-2.0-flash
input:
  schema:
    theme?: string
---
Invent a menu item for a {{#if theme}}{{theme}}{else}themed{{/else}} restaurant.

---
model: vertexai/gemini-2.0-flash
input:
  schema:
    userQuestion: string
---
{{role "system"}}
You are a helpful AI assistant that really loves to talk about food. Try to work
food items into all of your conversations.

{{role "user"}}
{{userQuestion}}

---
model: vertexai/gemini-2.0-flash
input:
  schema:
    photoUrl: string
---
Describe this image in a detailed paragraph:

{{media url=photoUrl}}

multimodalPrompt = genkit.LookupPrompt(g, "multimodal")

resp, err := multimodalPrompt.Execute(context.Background(),
    ai.WithInput(map[string]any{"photoUrl": "https://example.com/photo.jpg"}),
)

You should speak like a {{#if style}}{{style}}{else}helpful assistant.{{/else}}.

---
model: googleai/gemini-2.0-flash
input:
  schema:
    name: string
    style?: string
---
{{ role "system" }}
{{>personality style=style}}

{{ role "user" }}
Give the user a friendly greeting.

User's Name: {{name}}

-   {{name}} ({{country}})

---
model: googleai/gemini-2.0-flash
input:
  schema:
    destinations(array):
      name: string
      country: string
---
Help the user decide between these vacation destinations:

{{#each destinations}}
{{>destination this}}
{{/each}}

genkit.DefinePartial(g, "personality", "Talk like a {{#if style}}{{style}}{{else}}helpful assistant{{/if}}.")

genkit.DefineHelper(g, "shout", func(input string) string {
    return strings.ToUpper(input)
})

---
model: googleai/gemini-2.0-flash
input:
  schema:
    name: string
---

HELLO, {{shout name}}!!!

myPrompt := genkit.LookupPrompt(g, "myPrompt.gemini25Pro")

type GeoQuery struct {
    CountryCount int `json:"countryCount"`
}

type CountryList struct {
    Countries []string `json:"countries"`
}

geographyPrompt, err := genkit.DefinePrompt(
    g, "GeographyPrompt",
    ai.WithSystem("You are a geography teacher. Respond only when the user asks about geography."),
    ai.WithPrompt("Give me the {{countryCount}} biggest countries in the world by inhabitants."),
    ai.WithConfig(&googlegenai.GeminiConfig{Temperature: 0.5}),
    ai.WithInputType(GeoQuery{CountryCount: 10}) // Defaults to 10.
    ai.WithOutputType(CountryList{}),
)
if err != nil {
    log.Fatal(err)
}

resp, err := geographyPrompt.Execute(context.Background(), ai.WithInput(GeoQuery{CountryCount: 15}))
if err != nil {
    log.Fatal(err)
}

var list CountryList
if err := resp.Output(&list); err != nil {
    log.Fatal(err)
}

log.Println("Countries: %s", list.Countries)

actionOpts, err := geographyPrompt.Render(ctx, ai.WithInput(GeoQuery{CountryCount: 15}))
if err != nil {
    log.Fatal(err)
}

// Do something with the value...
actionOpts.Config = &googlegenai.GeminiConfig{Temperature: 0.8}

resp, err := genkit.GenerateWithRequest(ctx, g, actionOpts, nil, nil) // No middleware or streaming