Premiers pas

Ce guide vous aide à faire vos premiers pas avec l'API Gemini à l'aide de l'API Interactions. Vous effectuerez votre premier appel d'API en moins d'une minute et explorerez la génération de texte, la compréhension multimodale, la génération d'images, la sortie structurée, les outils, l'appel de fonction, les agents et l'exécution en arrière-plan.

L'API Interactions est disponible via les SDK Python et JavaScript, ainsi que via REST.

1. Obtenir une clé API

Pour utiliser l'API Gemini, vous avez besoin d'une clé API. Créez-en un sans frais pour commencer :

Créer une clé API Gemini

Définissez ensuite votre ID de projet en tant que variable d'environnement :

export GEMINI_API_KEY="YOUR_API_KEY"

2. Installer le SDK et effectuer votre premier appel

Installez le SDK et générez du texte en un seul appel d'API.

Python

Installez le SDK :

pip install -U google-genai

Initialisez le client et envoyez une requête :

from google import genai

client = genai.Client()

interaction = client.interactions.create(
    model="gemini-3.5-flash",
    input="Explain how AI works in a few words"
)
print(interaction.output_text)

JavaScript

Installez le SDK :

npm install @google/genai

Initialisez le client et envoyez une requête :

import { GoogleGenAI } from "@google/genai";

const ai = new GoogleGenAI({});

const interaction = await ai.interactions.create({
  model: "gemini-3.5-flash",
  input: "Explain how AI works in a few words",
});
console.log(interaction.output_text);

REST

curl -X POST "https://generativelanguage.googleapis.com/v1beta/interactions" \
  -H "x-goog-api-key: $GEMINI_API_KEY" \
  -H 'Content-Type: application/json' \
  -d '{
    "model": "gemini-3.5-flash",
    "input": "Explain how AI works in a few words"
  }'

Réponse :

{
  "id": "v1_ChdpQUFvYXI...",
  "status": "completed",
  "usage": {
    "total_tokens": 197,
    "total_input_tokens": 8,
    "total_output_tokens": 12
  },
  "created": "2026-06-09T12:01:25Z",
  "steps": [
    {
      "type": "thought",
      "signature": "EvEFCu4FAQw..."
    },
    {
      "type": "model_output",
      "content": [
        {
          "type": "text",
          "text": "AI learns patterns from data, then uses those patterns to make predictions or decisions on new data."
        }
      ]
    }
  ],
  "object": "interaction",
  "model": "gemini-3.5-flash",
}

Lorsque vous utilisez REST, l'API renvoie la ressource Interaction complète contenant les métadonnées, les statistiques d'utilisation et l'historique détaillé du tour.

Bien que les SDK exposent la réponse complète, ils fournissent également des propriétés pratiques telles que interaction.output_text et interaction.output_image pour accéder directement aux résultats finaux. Pour en savoir plus sur la structure des réponses, consultez la présentation des interactions ou le guide de génération de texte pour en savoir plus sur les instructions système et la configuration de la génération.

3. Diffuser la réponse

Pour des interactions plus fluides, diffusez la réponse au fur et à mesure de sa génération. Chaque événement step.delta fournit un bloc de texte que vous pouvez afficher immédiatement.

Python

from google import genai

client = genai.Client()

stream = client.interactions.create(
    model="gemini-3.5-flash",
    input="Explain how AI works",
    stream=True
)
for event in stream:
    print(event)

JavaScript

import { GoogleGenAI } from "@google/genai";

const ai = new GoogleGenAI({});

const stream = await ai.interactions.create({
  model: "gemini-3.5-flash",
  input: "Explain how AI works",
  stream: true,
});

for await (const event of stream) {
  console.log(event);
}

REST

curl -X POST "https://generativelanguage.googleapis.com/v1beta/interactions?alt=sse" \
  -H "x-goog-api-key: $GEMINI_API_KEY" \
  -H 'Content-Type: application/json' \
  --no-buffer \
  -d '{
    "model": "gemini-3.5-flash",
    "input": "Explain how AI works",
    "stream": true
  }'

Lors de la diffusion en flux continu, le serveur répond par un flux d'événements envoyés par le serveur (SSE). Chaque événement inclut un type et des données JSON.

Réponse :

event: interaction.created
data: {"interaction":{"id":"v1_Chd...","status":"in_progress","model":"gemini-3.5-flash"},"event_type":"interaction.created"}

event: step.start
data: {"index":0,"step":{"type":"thought"},"event_type":"step.start"}

event: step.delta
data: {"index":0,"delta":{"signature":"EvEFCu4F...","type":"thought_signature"},"event_type":"step.delta"}

event: step.stop
data: {"index":0,"event_type":"step.stop"}

event: step.start
data: {"index":1,"step":{"type":"model_output"},"event_type":"step.start"}

event: step.delta
data: {"index":1,"delta":{"text":"AI ","type":"text"},"event_type":"step.delta"}

event: step.delta
data: {"index":1,"delta":{"text":"works ","type":"text"},"event_type":"step.delta"}

event: step.stop
data: {"index":1,"event_type":"step.stop"}

event: interaction.completed
data: {"interaction":{"id":"v1_Chd...","status":"completed","usage":{"total_tokens":197}},"event_type":"interaction.completed"}

Pour en savoir plus sur la gestion des événements de streaming et des types de delta, consultez le guide des interactions de streaming.

4. Conversations multitours

L'API Interactions prend en charge les conversations multitours de deux manières :

  • Avec état (recommandé) : poursuivez une conversation sur le serveur à l'aide de previous_interaction_id. Idéal pour la plupart des workflows de chat et agentiques où vous souhaitez que le serveur gère l'historique et optimise la mise en cache.
  • Sans état : gérez l'historique des conversations sur le client en transmettant tous les tours précédents (y compris les étapes de réflexion et d'outil intermédiaires du modèle) dans chaque requête.

Enchaînez les interactions en transmettant previous_interaction_id. Le serveur gère l'intégralité de l'historique des conversations pour vous.

Python

from google import genai

client = genai.Client()

# Server-side state (recommended)
interaction1 = client.interactions.create(
    model="gemini-3.5-flash",
    input="I have 2 dogs in my house.",
)
print("Response 1:", interaction1.output_text)

interaction2 = client.interactions.create(
    model="gemini-3.5-flash",
    input="How many paws are in my house?",
    previous_interaction_id=interaction1.id,
)
print("Response 2:", interaction2.output_text)

JavaScript

import { GoogleGenAI } from "@google/genai";

const ai = new GoogleGenAI({});

// Server-side state (recommended)
const interaction1 = await ai.interactions.create({
  model: "gemini-3.5-flash",
  input: "I have 2 dogs in my house.",
});
console.log("Response 1:", interaction1.output_text);

const interaction2 = await ai.interactions.create({
  model: "gemini-3.5-flash",
  input: "How many paws are in my house?",
  previous_interaction_id: interaction1.id,
});
console.log("Response 2:", interaction2.output_text);

REST

RESPONSE1=$(curl -s -X POST "https://generativelanguage.googleapis.com/v1beta/interactions" \
  -H "x-goog-api-key: $GEMINI_API_KEY" \
  -H 'Content-Type: application/json' \
  -d '{
    "model": "gemini-3.5-flash",
    "input": "I have 2 dogs in my house."
  }')

INTERACTION_ID=$(echo "$RESPONSE1" | jq -r '.id')
echo "Interaction 1 ID: $INTERACTION_ID"

curl -X POST "https://generativelanguage.googleapis.com/v1beta/interactions" \
  -H "x-goog-api-key: $GEMINI_API_KEY" \
  -H 'Content-Type: application/json' \
  -d '{
    "model": "gemini-3.5-flash",
    "input": "How many paws are in my house?",
    "previous_interaction_id": "'$INTERACTION_ID'"
  }'

Sans état

Définissez store=false et gérez l'historique des conversations côté client. Vous devez conserver et renvoyer toutes les étapes générées par le modèle (y compris les étapes thought et function_call) exactement telles que vous les avez reçues.

Python

from google import genai

client = genai.Client()

history = [
    {
        "type": "user_input",
        "content": [{"type": "text", "text": "I have 2 dogs in my house."}]
    }
]

interaction1 = client.interactions.create(
    model="gemini-3.5-flash",
    store=False,
    input=history
)
print("Response 1:", interaction1.steps[-1].content[0].text)

for step in interaction1.steps:
    history.append(step.model_dump())

history.append({
    "type": "user_input",
    "content": [{"type": "text", "text": "How many paws are in my house?"}]
})

interaction2 = client.interactions.create(
    model="gemini-3.5-flash",
    store=False,
    input=history
)
print("Response 2:", interaction2.steps[-1].content[0].text)

JavaScript

import { GoogleGenAI } from "@google/genai";

const ai = new GoogleGenAI({});

const history = [
  {
    type: "user_input",
    content: [{ type: "text", text: "I have 2 dogs in my house." }]
  }
];

const interaction1 = await ai.interactions.create({
  model: "gemini-3.5-flash",
  store: false,
  input: history
});
console.log("Response 1:", interaction1.steps.at(-1).content[0].text);

history.push(...interaction1.steps);

history.push({
  type: "user_input",
  content: [{ type: "text", text: "How many paws are in my house?" }]
});

const interaction2 = await ai.interactions.create({
  model: "gemini-3.5-flash",
  store: false,
  input: history
});
console.log("Response 2:", interaction2.steps.at(-1).content[0].text);

REST

# Turn 1: Send with store: false
RESPONSE1=$(curl -s -X POST "https://generativelanguage.googleapis.com/v1beta/interactions" \
  -H "x-goog-api-key: $GEMINI_API_KEY" \
  -H 'Content-Type: application/json' \
  -d '{
    "model": "gemini-3.5-flash",
    "store": false,
    "input": [
      {
        "type": "user_input",
        "content": "I have 2 dogs in my house."
      }
    ]
  }')

MODEL_STEPS=$(echo "$RESPONSE1" | jq '.steps')

# Turn 2: Build full history
HISTORY=$(jq -n \
  --argjson first_input '[{"type": "user_input", "content": "I have 2 dogs in my house."}]' \
  --argjson model_steps "$MODEL_STEPS" \
  --argjson second_input '[{"type": "user_input", "content": "How many paws are in my house?"}]' \
  '$first_input + $model_steps + $second_input')

curl -X POST "https://generativelanguage.googleapis.com/v1beta/interactions" \
  -H "x-goog-api-key: $GEMINI_API_KEY" \
  -H 'Content-Type: application/json' \
  -d "{
    \"model\": \"gemini-3.5-flash\",
    \"store\": false,
    \"input\": $HISTORY
  }"

Réponse :

{
  "id": "v2_Chd...",
  "status": "completed",
  "usage": {
    "total_tokens": 240,
    "total_input_tokens": 60,
    "total_output_tokens": 20
  },
  "steps": [
    {
      "type": "model_output",
      "content": [
        {
          "type": "text",
          "text": "There are 8 paws in your house. 2 dogs \u00d7 4 paws = 8 paws."
        }
      ]
    }
  ],
  "object": "interaction",
  "model": "gemini-3.5-flash"
}

La deuxième interaction renvoie un objet de réponse complet qui n'inclut que les nouvelles étapes, mais qui est ancré dans le contexte du tour précédent. Pour en savoir plus sur la gestion de l'état dans le guide sur les conversations multitours, ou découvrez le mode sans état pour la gestion de l'historique côté client.

5. Compréhension multimodale

Les modèles Gemini comprennent les images, les contenus audio, les vidéos et les documents de manière native. Transmettez des contenus multimédias en même temps que du texte dans une seule requête.

Python

import base64
from google import genai

client = genai.Client()

# Load a local image
with open("sample.jpg", "rb") as f:
    image_bytes = f.read()
image_b64 = base64.b64encode(image_bytes).decode("utf-8")

interaction = client.interactions.create(
    model="gemini-3.5-flash",
    input=[
        {"type": "text", "text": "Compare this local image and this remote audio file."},
        {
            "type": "image",
            "data": image_b64,
            "mime_type": "image/jpeg"
        },
        {
            "type": "audio",
            "uri": "https://storage.googleapis.com/generativeai-downloads/data/sample.mp3",
            "mime_type": "audio/mp3"
        }
    ]
)
print(interaction.output_text)

JavaScript

import fs from "fs";
import { GoogleGenAI } from "@google/genai";

const ai = new GoogleGenAI({});

// Load a local image
const imageBytes = fs.readFileSync("sample.jpg");
const imageB64 = imageBytes.toString("base64");

const interaction = await ai.interactions.create({
  model: "gemini-3.5-flash",
  input: [
    { type: "text", text: "Compare this local image and this remote audio file." },
    {
      type: "image",
      data: imageB64,
      mime_type: "image/jpeg"
    },
    {
      type: "audio",
      uri: "https://storage.googleapis.com/generativeai-downloads/data/sample.mp3",
      mime_type: "audio/mp3"
    }
  ],
});
console.log(interaction.output_text);

REST

# Base64-encode local image
BASE64_IMAGE=$(base64 -w 0 sample.jpg)

curl -X POST "https://generativelanguage.googleapis.com/v1beta/interactions"   -H "x-goog-api-key: $GEMINI_API_KEY"   -H 'Content-Type: application/json'   -H "Api-Revision: 2026-05-20"   -d '{
    "model": "gemini-3.5-flash",
    "input": [
      {
        "type": "text",
        "text": "Compare this local image and this remote audio file."
      },
      {
        "type": "image",
        "data": "'$BASE64_IMAGE'",
        "mime_type": "image/jpeg"
      },
      {
        "type": "audio",
        "uri": "https://storage.googleapis.com/generativeai-downloads/data/sample.mp3",
        "mime_type": "audio/mp3"
      }
    ]
  }'

Réponse :

{
  "id": "v1_Chd...",
  "status": "completed",
  "usage": {
    "total_tokens": 300
  },
  "steps": [
    {
      "type": "model_output",
      "content": [
        {
          "type": "text",
          "text": "The local image displays a pipe organ while the remote audio file is a sample MP3 clip..."
        }
      ]
    }
  ],
  "object": "interaction",
  "model": "gemini-3.5-flash",
}

Découvrez comment transmettre des images, des vidéos et des fichiers audio dans le guide de compréhension d'images.

6. Génération multimodale

Gemini peut générer des images de manière native à l'aide des modèles d'image Nano Banana.

Python

import base64
from google import genai

client = genai.Client()

interaction = client.interactions.create(
    model="gemini-3.1-flash-image",
    input="Generate an image of a futuristic city skyline at sunset",
)

with open("generated_image.png", "wb") as f:
    f.write(base64.b64decode(interaction.output_image.data))

JavaScript

import { GoogleGenAI } from "@google/genai";
import * as fs from "node:fs";

const ai = new GoogleGenAI({});

const interaction = await ai.interactions.create({
  model: "gemini-3.1-flash-image",
  input: "Generate an image of a futuristic city skyline at sunset",
});

const generatedImage = interaction.output_image;
if (generatedImage) {
  const buffer = Buffer.from(generatedImage.data, "base64");
  fs.writeFileSync("generated_image.png", buffer);
}

REST

curl -s -X POST "https://generativelanguage.googleapis.com/v1beta/interactions" \
  -H "x-goog-api-key: $GEMINI_API_KEY" \
  -H 'Content-Type: application/json' \
  -d '{
    "model": "gemini-3.1-flash-image",
    "input": [
      {"type": "text", "text": "Generate an image of a futuristic city skyline at sunset"}
    ]
  }'

Réponse :

{
  "id": "v1_Chd...",
  "status": "completed",
  "steps": [
    {
      "type": "model_output",
      "content": [
        {
          "type": "image",
          "data": "BASE64_ENCODED_IMAGE",
          "mime_type": "image/png"
        }
      ]
    }
  ],
  "object": "interaction",
  "model": "gemini-3.1-flash-image",
}

Lorsque le modèle génère une image, il renvoie les données d'image encodées en base64 dans une étape du tableau steps, ainsi que via la propriété pratique output_image. Consultez le guide de génération d'images pour en savoir plus sur les formats, la retouche d'images et les références.

7. Utiliser une sortie structurée

Configurez le modèle pour qu'il renvoie un fichier JSON correspondant à un schéma que vous définissez. La sortie structurée fonctionne avec Pydantic (Python) et Zod (JavaScript).

Python

from google import genai
from pydantic import BaseModel, Field
from typing import List, Optional

class Recipe(BaseModel):
    recipe_name: str = Field(description="Name of the recipe.")
    ingredients: List[str] = Field(description="List of ingredients.")
    prep_time_minutes: Optional[int] = Field(description="Prep time in minutes.")

client = genai.Client()

interaction = client.interactions.create(
    model="gemini-3.5-flash",
    input="Give me a recipe for banana bread",
    response_format={
        "type": "text",
        "mime_type": "application/json",
        "schema": Recipe.model_json_schema()
    },
)

recipe = Recipe.model_validate_json(interaction.output_text)
print(recipe)

JavaScript

import { GoogleGenAI } from "@google/genai";
import * as z from "zod";

const ai = new GoogleGenAI({});

const recipeJsonSchema = {
  type: "object",
  properties: {
    recipe_name: { type: "string", description: "Name of the recipe." },
    ingredients: {
      type: "array",
      items: { type: "string" },
      description: "List of ingredients."
    },
    prep_time_minutes: {
      type: "integer",
      description: "Prep time in minutes."
    }
  },
  required: ["recipe_name", "ingredients"]
};

const recipeSchema = z.fromJSONSchema(recipeJsonSchema);

const interaction = await ai.interactions.create({
  model: "gemini-3.5-flash",
  input: "Give me a recipe for banana bread",
  response_format: {
    type: "text",
    mime_type: "application/json",
    schema: recipeJsonSchema
  },
});

const recipe = recipeSchema.parse(JSON.parse(interaction.output_text));
console.log(recipe);

REST

curl -X POST "https://generativelanguage.googleapis.com/v1beta/interactions" \
  -H "x-goog-api-key: $GEMINI_API_KEY" \
  -H 'Content-Type: application/json' \
  -d '{
    "model": "gemini-3.5-flash",
    "input": "Give me a recipe for banana bread",
    "response_format": {
      "type": "text",
      "mime_type": "application/json",
      "schema": {
        "type": "object",
        "properties": {
          "recipe_name": { "type": "string", "description": "Name of the recipe." },
          "ingredients": {
            "type": "array",
            "items": { "type": "string" },
            "description": "List of ingredients."
          },
          "prep_time_minutes": {
            "type": "integer",
            "description": "Prep time in minutes."
          }
        },
        "required": ["recipe_name", "ingredients"]
      }
    }
  }'

Réponse :

{
  "id": "v1_Chd...",
  "status": "completed",
  "steps": [
    {
      "type": "model_output",
      "content": [
        {
          "type": "text",
          "text": "{\n  \"recipe_name\": \"Classic Banana Bread\",\n  \"ingredients\": [\n    \"3 ripe bananas, mashed\",\n    \"1/3 cup melted butter\",\n    \"3/4 cup sugar\",\n    \"1 egg, beaten\",\n    \"1 teaspoon vanilla extract\",\n    \"1 teaspoon baking soda\",\n    \"Pinch of salt\",\n    \"1.5 cups all-purpose flour\"\n  ],\n  \"prep_time_minutes\": 15\n}"
        }
      ]
    }
  ],
  "object": "interaction",
  "model": "gemini-3.5-flash",
}

Le bloc de texte de sortie contient une chaîne JSON valide qui correspond exactement au schéma demandé. Pour savoir comment définir des structures plus complexes et des schémas récursifs, consultez le guide sur les sorties structurées.

8. Utiliser des outils

Ancrez la réponse du modèle dans des informations en temps réel avec la recherche Google. L'API recherche et traite automatiquement les résultats, puis renvoie les citations.

Python

from google import genai

client = genai.Client()

interaction = client.interactions.create(
    model="gemini-3.5-flash",
    input="Who won the euro 2024?",
    tools=[{"type": "google_search"}]
)

print(interaction.output_text)

# Print citations
for step in interaction.steps:
    if step.type == "model_output":
        for content_block in step.content:
            if content_block.type == "text" and content_block.annotations:
                print("\nCitations:")
                for annotation in content_block.annotations:
                    if annotation.type == "url_citation":
                        print(f"  [{annotation.title}]({annotation.url})")

JavaScript

import { GoogleGenAI } from "@google/genai";

const ai = new GoogleGenAI({});

const interaction = await ai.interactions.create({
  model: "gemini-3.5-flash",
  input: "Who won the euro 2024?",
  tools: [{ type: "google_search" }]
});

console.log(interaction.output_text);

// Print citations
for (const step of interaction.steps) {
  if (step.type === "model_output") {
    for (const contentBlock of step.content) {
      if (contentBlock.type === "text" && contentBlock.annotations) {
        console.log("\nCitations:");
        for (const annotation of contentBlock.annotations) {
          if (annotation.type === "url_citation") {
            console.log(`  [${annotation.title}](${annotation.url})`);
          }
        }
      }
    }
  }
}

REST

curl -X POST "https://generativelanguage.googleapis.com/v1beta/interactions" \
  -H "x-goog-api-key: $GEMINI_API_KEY" \
  -H 'Content-Type: application/json' \
  -d '{
    "model": "gemini-3.5-flash",
    "input": "Who won the euro 2024?",
    "tools": [{"type": "google_search"}]
  }'

Réponse :

{
  "id": "v1_Chd...",
  "status": "completed",
  "steps": [
    {
      "type": "thought",
      "signature": "EvEFCu4F..."
    },
    {
      "type": "google_search_call",
      "arguments": {
        "queries": ["UEFA Euro 2024 winner"]
      }
    },
    {
      "type": "google_search_result",
      "call_id": "search_001",
      "result": [
        {
          "search_suggestions": "<!-- HTML and CSS search widget -->"
        }
      ]
    },
    {
      "type": "model_output",
      "content": [
        {
          "type": "text",
          "text": "Spain won Euro 2024, defeating England 2-1 in the final.",
          "annotations": [
            {
              "type": "url_citation",
              "url": "https://www.uefa.com/euro2024",
              "title": "uefa.com",
              "start_index": 0,
              "end_index": 56
            }
          ]
        }
      ]
    }
  ],
  "object": "interaction",
  "model": "gemini-3.5-flash",
}

Les étapes de recherche sont détaillées dans l'historique des interactions, et le résultat final inclut des citations intégrées pointant vers des sources Web.

Pour savoir comment extraire des citations de recherche, consultez le guide sur l'ancrage avec la recherche Google. Pour découvrir comment combiner plusieurs outils, consultez le guide sur la combinaison d'outils.

9. Appeler vos propres fonctions

L'appel de fonction vous permet de connecter le modèle à votre code. Vous déclarez le nom et les paramètres d'une fonction, le modèle décide quand l'appeler et renvoie des arguments structurés, et vous l'exécutez localement et renvoyez le résultat.

Python

import json
from google import genai

client = genai.Client()

weather_tool = {
    "type": "function",
    "name": "get_current_temperature",
    "description": "Gets the current temperature for a given location.",
    "parameters": {
        "type": "object",
        "properties": {
            "location": {
                "type": "string",
                "description": "The city name, e.g. San Francisco",
            },
        },
        "required": ["location"],
    },
}

available_functions = {
    "get_current_temperature": lambda location: {
        "location": location, "temperature": "22", "unit": "celsius"
    },
}

user_input = "What is the temperature in London?"
previous_id = None

while True:
    interaction = client.interactions.create(
        model="gemini-3.5-flash",
        input=user_input,
        tools=[weather_tool],
        previous_interaction_id=previous_id,
    )

    function_results = []
    for step in interaction.steps:
        if step.type == "function_call":
            result = available_functions[step.name](**step.arguments)
            print(f"Called {step.name}({step.arguments}) → {result}")
            function_results.append({
                "type": "function_result",
                "name": step.name,
                "call_id": step.id,
                "result": [{"type": "text", "text": json.dumps(result)}],
            })

    if not function_results:
        break

    user_input = function_results
    previous_id = interaction.id

print(interaction.output_text)

JavaScript

import { GoogleGenAI } from "@google/genai";

const ai = new GoogleGenAI({});

const weatherTool = {
  type: "function",
  name: "get_current_temperature",
  description: "Gets the current temperature for a given location.",
  parameters: {
    type: "object",
    properties: {
      location: {
        type: "string",
        description: "The city name, e.g. San Francisco",
      },
    },
    required: ["location"],
  },
};

const availableFunctions = {
  get_current_temperature: ({ location }) => ({
    location, temperature: "22", unit: "celsius"
  }),
};

let input = "What is the temperature in London?";
let previousId = null;
let interaction;

while (true) {
  interaction = await ai.interactions.create({
    model: "gemini-3.5-flash",
    input,
    tools: [weatherTool],
    previous_interaction_id: previousId,
  });

  const functionResults = [];
  for (const step of interaction.steps) {
    if (step.type === "function_call") {
      const result = availableFunctions[step.name](step.arguments);
      console.log(`Called ${step.name}(${JSON.stringify(step.arguments)}) →`, result);
      functionResults.push({
        type: "function_result",
        name: step.name,
        call_id: step.id,
        result: [{ type: "text", text: JSON.stringify(result) }],
      });
    }
  }

  if (functionResults.length === 0) break;

  input = functionResults;
  previousId = interaction.id;
}

console.log(interaction.output_text);

REST

# Turn 1: Send prompt with function declaration
RESPONSE1=$(curl -s -X POST "https://generativelanguage.googleapis.com/v1beta/interactions" \
  -H "x-goog-api-key: $GEMINI_API_KEY" \
  -H 'Content-Type: application/json' \
  -d '{
    "model": "gemini-3.5-flash",
    "input": "What is the temperature in London?",
    "tools": [{
      "type": "function",
      "name": "get_current_temperature",
      "description": "Gets the current temperature for a given location.",
      "parameters": {
        "type": "object",
        "properties": {
          "location": {"type": "string", "description": "The city name"}
        },
        "required": ["location"]
      }
    }]
  }')

INTERACTION_ID=$(echo "$RESPONSE1" | jq -r '.id')
FC_NAME=$(echo "$RESPONSE1" | jq -r '.steps[] | select(.type=="function_call") | .name')
FC_ID=$(echo "$RESPONSE1" | jq -r '.steps[] | select(.type=="function_call") | .id')
echo "Function: $FC_NAME, Call ID: $FC_ID"

# Turn 2: Send function result back
curl -X POST "https://generativelanguage.googleapis.com/v1beta/interactions" \
  -H "x-goog-api-key: $GEMINI_API_KEY" \
  -H 'Content-Type: application/json' \
  -d '{
    "model": "gemini-3.5-flash",
    "previous_interaction_id": "'$INTERACTION_ID'",
    "input": [{
      "type": "function_result",
      "name": "'$FC_NAME'",
      "call_id": "'$FC_ID'",
      "result": [{"type": "text", "text": "{\"location\": \"London\", \"temperature\": \"22\", \"unit\": \"celsius\"}"}]
    }],
    "tools": [{
      "type": "function",
      "name": "get_current_temperature",
      "description": "Gets the current temperature for a given location.",
      "parameters": {
        "type": "object",
        "properties": {
          "location": {"type": "string", "description": "The city name"}
        },
        "required": ["location"]
      }
    }]
  }'

Sans état

Vous pouvez également utiliser les appels de fonction en mode sans état en gérant l'historique des conversations côté client et en définissant store=false. En mode sans état, vous devez transmettre l'intégralité de l'historique de la conversation dans le champ input de chaque requête suivante. Cet historique doit inclure :

  1. Étape user_input initiale.
  2. Toutes les étapes générées par le modèle renvoyées au tour 1 (y compris les étapes thought et function_call) exactement telles qu'elles ont été reçues.
  3. Étape function_result contenant le résultat de votre fonction exécutée.

Python

import json
from google import genai

client = genai.Client()

weather_tool = {
    "type": "function",
    "name": "get_current_temperature",
    "description": "Gets the current temperature for a given location.",
    "parameters": {
        "type": "object",
        "properties": {
            "location": {
                "type": "string",
                "description": "The city name, e.g. San Francisco",
            },
        },
        "required": ["location"],
    },
}

available_functions = {
    "get_current_temperature": lambda location: {
        "location": location, "temperature": "22", "unit": "celsius"
    },
}

history = [
    {
        "type": "user_input",
        "content": [{"type": "text", "text": "What is the temperature in London?"}]
    }
]

while True:
    interaction = client.interactions.create(
        model="gemini-3.5-flash",
        store=False,
        input=history,
        tools=[weather_tool],
    )

    function_results = []
    for step in interaction.steps:
        history.append(step.model_dump())
        if step.type == "function_call":
            result = available_functions[step.name](**step.arguments)
            print(f"Called {step.name}({step.arguments}) → {result}")
            fn_result = {
                "type": "function_result",
                "name": step.name,
                "call_id": step.id,
                "result": [{"type": "text", "text": json.dumps(result)}],
            }
            function_results.append(fn_result)
            history.append(fn_result)

    if not function_results:
        break

print(interaction.output_text)

JavaScript

import { GoogleGenAI } from "@google/genai";

const ai = new GoogleGenAI({});

const weatherTool = {
  type: "function",
  name: "get_current_temperature",
  description: "Gets the current temperature for a given location.",
  parameters: {
    type: "object",
    properties: {
      location: {
        type: "string",
        description: "The city name, e.g. San Francisco",
      },
    },
    required: ["location"],
  },
};

const availableFunctions = {
  get_current_temperature: ({ location }) => ({
    location, temperature: "22", unit: "celsius"
  }),
};

const history = [
  {
    type: "user_input",
    content: [{ type: "text", text: "What is the temperature in London?" }]
  }
];

let interaction;

while (true) {
  interaction = await ai.interactions.create({
    model: "gemini-3.5-flash",
    store: false,
    input: history,
    tools: [weatherTool],
  });

  const functionResults = [];
  for (const step of interaction.steps) {
    history.push(step);
    if (step.type === "function_call") {
      const result = availableFunctions[step.name](step.arguments);
      console.log(`Called ${step.name}(${JSON.stringify(step.arguments)}) →`, result);
      const fnResult = {
        type: "function_result",
        name: step.name,
        call_id: step.id,
        result: [{ type: "text", text: JSON.stringify(result) }],
      };
      functionResults.push(fnResult);
      history.push(fnResult);
    }
  }

  if (functionResults.length === 0) break;
}

console.log(interaction.output_text);

REST

# Turn 1: Send request with tools and store: false
RESPONSE1=$(curl -s -X POST "https://generativelanguage.googleapis.com/v1beta/interactions" \
  -H "x-goog-api-key: $GEMINI_API_KEY" \
  -H 'Content-Type: application/json' \
  -d '{
    "model": "gemini-3.5-flash",
    "store": false,
    "input": [
      {
        "type": "user_input",
        "content": "What is the temperature in London?"
      }
    ],
    "tools": [{
      "type": "function",
      "name": "get_current_temperature",
      "description": "Gets the current temperature for a given location.",
      "parameters": {
        "type": "object",
        "properties": {
          "location": {"type": "string", "description": "The city name"}
        },
        "required": ["location"]
      }
    }]
  }')

# Extract model steps (thought, function_call)
MODEL_STEPS=$(echo "$RESPONSE1" | jq '.steps')
FC_NAME=$(echo "$RESPONSE1" | jq -r '.steps[] | select(.type=="function_call") | .name')
FC_ID=$(echo "$RESPONSE1" | jq -r '.steps[] | select(.type=="function_call") | .id')
echo "Function: $FC_NAME, Call ID: $FC_ID"

# Assume local execution returns:
RESULT="{\"location\": \"London\", \"temperature\": \"22\", \"unit\": \"celsius\"}"

# Reconstruct history for Turn 2
HISTORY=$(jq -n \
  --argjson first_input '[{"type": "user_input", "content": "What is the temperature in London?"}]' \
  --argjson model_steps "$MODEL_STEPS" \
  --arg fc_name "$FC_NAME" \
  --arg fc_id "$FC_ID" \
  --arg result "$RESULT" \
  '$first_input + $model_steps + [{"type": "function_result", "name": $fc_name, "call_id": $fc_id, "result": [{"type": "text", "text": $result}]}]')

# Turn 2: Send the full history
curl -X POST "https://generativelanguage.googleapis.com/v1beta/interactions" \
  -H "x-goog-api-key: $GEMINI_API_KEY" \
  -H 'Content-Type: application/json' \
  -d "{
    \"model\": \"gemini-3.5-flash\",
    \"store\": false,
    \"input\": $HISTORY,
    \"tools\": [{
      \"type\": \"function\",
      \"name\": \"get_current_temperature\",
      \"description\": \"Gets the current temperature for a given location.\",
      \"parameters\": {
        \"type\": \"object\",
        \"properties\": {
          \"location\": {\"type\": \"string\", \"description\": \"The city name\"}
        },
        \"required\": [\"location\"]
      }
    }]
  }"

Réponse :

Au cours du tour 1, le modèle renvoie une réponse avec l'état requires_action et l'étape function_call :

{
  "id": "v1_Chd...",
  "status": "requires_action",
  "steps": [
    {
      "type": "function_call",
      "id": "call_abc123",
      "name": "get_current_temperature",
      "arguments": {
        "location": "London"
      }
    }
  ],
  "object": "interaction",
  "model": "gemini-3.5-flash"
}

Une fois que vous avez exécuté la fonction en local et envoyé le résultat (tour 2), l'interaction finale terminée est renvoyée :

{
  "id": "v1_Chd...",
  "status": "completed",
  "steps": [
    {
      "type": "function_call",
      "id": "call_abc123",
      "name": "get_current_temperature",
      "arguments": {
        "location": "London"
      }
    },
    {
      "type": "model_output",
      "content": [
        {
          "type": "text",
          "text": "The temperature in London is currently 22°C."
        }
      ]
    }
  ],
  "object": "interaction",
  "model": "gemini-3.5-flash",
}

Pour en savoir plus sur les fonctionnalités avancées telles que l'appel de fonction parallèle ou les modes de sélection de fonction, consultez le guide sur l'appel de fonction.

10. Exécuter un agent géré

Les agents gérés s'exécutent dans un bac à sable distant et ont accès à des outils tels que l'exécution de code et la gestion de fichiers. Transmettez un agent au lieu d'un model et définissez environment="remote".

Python

from google import genai

client = genai.Client()

interaction = client.interactions.create(
    agent="antigravity-preview-05-2026",
    input="Write a Python script that generates the first 20 Fibonacci numbers and saves them to fibonacci.txt. Then read the file and print its contents.",
    environment="remote",
)
print(f"Environment: {interaction.environment_id}")
print(interaction.output_text)

JavaScript

import { GoogleGenAI } from "@google/genai";

const ai = new GoogleGenAI({});

const interaction = await ai.interactions.create({
  agent: "antigravity-preview-05-2026",
  input: "Write a Python script that generates the first 20 Fibonacci numbers and saves them to fibonacci.txt. Then read the file and print its contents.",
  environment: "remote",
});
console.log(`Environment: ${interaction.environment_id}`);
console.log(interaction.output_text);

REST

curl -X POST "https://generativelanguage.googleapis.com/v1beta/interactions" \
  -H "x-goog-api-key: $GEMINI_API_KEY" \
  -H 'Content-Type: application/json' \
  -d '{
    "agent": "antigravity-preview-05-2026",
    "input": "Write a Python script that generates the first 20 Fibonacci numbers and saves them to fibonacci.txt. Then read the file and print its contents.",
    "environment": "remote"
  }'

Vous pouvez également définir et enregistrer des agents personnalisés avec vos propres instructions, compétences et sources de données.

11. Exécuter des tâches en arrière-plan

Définissez background=True pour exécuter les tâches longues de manière asynchrone. Interrogez les résultats avec interactions.get().

Python

import time
from google import genai

client = genai.Client()

interaction = client.interactions.create(
    model="gemini-3.5-flash",
    input="Write a detailed analysis of the impact of artificial intelligence on modern healthcare.",
    background=True,
)
print(f"Started background task: {interaction.id}")
print(f"Status: {interaction.status}")

# Poll for completion
while True:
    result = client.interactions.get(interaction.id)
    print(f"Status: {result.status}")
    if result.status == "completed":
        print(f"\nResult:\n{result.output_text}")
        break
    elif result.status == "failed":
        print(f"Failed: {result.error}")
        break
    time.sleep(5)

JavaScript

import { GoogleGenAI } from "@google/genai";

const ai = new GoogleGenAI({});

const interaction = await ai.interactions.create({
  model: "gemini-3.5-flash",
  input: "Write a detailed analysis of the impact of artificial intelligence on modern healthcare.",
  background: true,
});
console.log(`Started background task: ${interaction.id}`);
console.log(`Status: ${interaction.status}`);

// Poll for completion
while (true) {
  const result = await ai.interactions.get(interaction.id);
  console.log(`Status: ${result.status}`);
  if (result.status === "completed") {
    console.log(`\nResult:\n${result.output_text}`);
    break;
  } else if (result.status === "failed") {
    console.log(`Failed: ${result.error}`);
    break;
  }
  await new Promise(r => setTimeout(r, 5000));
}

REST

# Start a background task
RESPONSE=$(curl -s -X POST "https://generativelanguage.googleapis.com/v1beta/interactions" \
  -H "x-goog-api-key: $GEMINI_API_KEY" \
  -H 'Content-Type: application/json' \
  -d '{
    "model": "gemini-3.5-flash",
    "input": "Write a detailed analysis of the impact of artificial intelligence on modern healthcare.",
    "background": true
  }')

INTERACTION_ID=$(echo "$RESPONSE" | jq -r '.id')
echo "Started background task: $INTERACTION_ID"

# Poll for completion
while true; do
  RESULT=$(curl -s "https://generativelanguage.googleapis.com/v1beta/interactions/$INTERACTION_ID" \
    -H "x-goog-api-key: $GEMINI_API_KEY" \
    -H "Api-Revision: 2026-05-20")
  STATUS=$(echo "$RESULT" | jq -r '.status')
  echo "Status: $STATUS"
  if [ "$STATUS" = "completed" ]; then
    echo "$RESULT" | jq -r '.steps[] | select(.type=="model_output") | .content[] | select(.type=="text") | .text'
    break
  elif [ "$STATUS" = "failed" ]; then
    echo "Failed"
    break
  fi
  sleep 5
done

Réponse :

La réponse initiale est renvoyée immédiatement avec l'état in_progress :

{
  "id": "v1_abc123",
  "status": "in_progress",
  "object": "interaction",
  "model": "gemini-3.5-flash"
}

Une fois la tâche en arrière-plan entièrement exécutée, la vérification de l'état de l'interaction renvoie :

{
  "id": "v1_abc123",
  "status": "completed",
  "steps": [
    {
      "type": "model_output",
      "content": [
        {
          "type": "text",
          "text": "Artificial intelligence has transformed modern healthcare in several..."
        }
      ]
    }
  ],
  "object": "interaction",
  "model": "gemini-3.5-flash",
}

Pour en savoir plus sur l'exécution asynchrone de modèles et d'agents, consultez le guide d'exécution en arrière-plan.

Étape suivante

  • Génération de texte : instructions système, configuration de la génération et modèles de texte avancés.
  • Génération d'images : formats, retouche d'images et références de style.
  • Compréhension des images : classification, détection d'objets et questions/réponses visuelles.
  • Raisonnement : utilise le raisonnement en chaîne de pensée pour les tâches complexes.
  • Appel de fonction : modes de fonction parallèle, compositionnelle et contrainte.
  • Recherche Google : ancrage, citations et suggestions de recherche.
  • Agents gérés : agents prédéfinis avec exécution de code et gestion de fichiers.
  • Deep Research : recherche autonome en plusieurs étapes avec planification et synthèse.
  • Sortie structurée : schémas JSON, énumérations et définitions de types récursifs.