gemini-invoke

Use the Gemini invoke policy to invoke Gemini operations.

Gateway support

Table 1. Table showing which gateways support this policy, and the corresponding policy version
Gateway	Policy version
DataPower® API Gateway	2.0.0

This topic describes how to configure the policy in your OpenAPI source; for details on how to configure the policy in the assembly user interface, see Gemini invoke.

About

The Gemini invoke policy provides access to six Gemini operations:

POST models/[model]:generateContent
POST models/[model]:countTokens
POST models/[model]:embedContent
POST models/[model]:batchEmbedContents
GET models/[model]
GET models

Properties

The following table lists the policy properties, indicates whether a property is required, specifies the valid and default values for input, and specifies the data type of the values.

Table 2. Gemini invoke policy properties
Property name	Required	Description	Data type
version	Yes	The policy version number. You must specify a version for the policy that is compatible with the gateway that you are using. When the API is published, if the version is incompatible with the gateway, a validation error is thrown that specifies the available versions.	string
title	No	The title of the policy; the default value is Gemini invoke count tokens.	string
description	No	A description of the policy.	string
operation	Yes	The Gemini operation to invoke; must be one of the following operations: `POST models/[model]:generateContent` An HTTP POST operation for `generateContent`. See Generating Content in the Gemini API documentation for sample request and response examples. `POST models/[model]:countTokens` An HTTP POST operation for `/countTokens`. See Counting tokens in the Gemini API documentation for sample request and response examples. `POST models/[model]:embedContent` An HTTP POST operation for `embedContent`. See Embed Content in the Gemini API documentation for sample request and response examples. `POST models/[model]:batchEmbedContents` An HTTP POST operation for `batchEmbedContents`. See Batch Embed Content in the Gemini API documentation for sample request and response examples. `GET models` An HTTP GET operation for `/models`. See List Models in the Gemini API documentation for sample response examples. `GET models/[model]` An HTTP GET operation for `/models/[model]`. See Retrieve model in the Gemini API documentation for sample response examples.	string
api_key	Yes	The API key, or a variable reference to the variable that contains an API key. The API key is used to authenticate Gemini requests.	string
enable_cache	No	Response caching is enabled by default to optimize API performance; however, you can disable it if needed for your API. When response caching is enabled, then when a request is sent to the Gemini service, the response cache is inspected to determine if the request payload has an associated cached response. If so, that cached response and its associated HTTP response headers are placed into theDataPower API Gateway context message specified by the output property. If there is no cached response, the request is passed to the Gemini service, and the response is cached for subsequent operations using the time-to-live specified in the cache_ttl property.	boolean
cache_ttl	No	The duration of the cache (the time-to-live). The minimum duration is 60 seconds and the maximum duration is 86400 seconds (1 day) -- any value outside of that range will fail validation when the API is published, even if the value is accepted in this field.	integer
cache_scope	No	A string that adds uniqueness to the key used to store a cached response. Adding a cache scope enables the same request to be saved in multiple cache entries.	string
path_params	No	For operations that have a path parameter designated with a path parameter name in square brackets in the operation, specify the name of the parameter and the value separated by a colon. If the operation has more that one path parameter, each path parameter designation should be separated with a comma. For example, for operation `GET models/[model]`, the path parameter property would be specified as `model:somename`. Note: If a path parameter is required for the operation selected but was not provided, the invoke operation will fail. However, for operations that don't require a path parameter, any provided path parameter will be ignored.	string
query_params	No	For operations that support query parameters, specify a query parameter string that specifies the name of the parameter and value separated with an equal sign character. If more than one query parameter is supported, each query parameter would be separated with an ampersand character. The supported operations at this time do not support query parameters, although operations that could be supported in the future would support query parameters.	string
output	No	The name of the DataPower API Gateway context message that receives the Gemini response. By default, this property uses `message` as the value, which enables the response to be accessible by subsequent API policies in `message.body` and `message.headers`.	string

Example


gemini-invoke:
                    title: Gemini invoke count tokens
                    enable_cache: true
                    version: 2.0.0
                    api_key: $(gemini-apikey)
                    cache_ttl: 60
                    operation: POST models/[model]:countTokens
                    output: message
                    description: description goes here               
                    cache_scope: cachescopevalue