Swift Examples - Perplexity

Service setup

Create a Perplexity service in the AIProxy dashboard

Follow the integration guide, selecting the Perplexity icon on the 'Create a New Service' form.

How to create a chat completion with Perplexity

import AIProxy

let perplexityService = AIProxy.perplexityService(
    partialKey: "partial-key-from-your-developer-dashboard",
    serviceURL: "service-url-from-your-developer-dashboard"
)

do {
    let response = try await perplexityService.chatCompletionRequest(body: .init(
        messages: [.user(content: "How many national parks in the US?")],
        model: "llama-3.1-sonar-small-128k-online"
    ))
    print(response.choices.first?.message?.content ?? "")
    if let usage = response.usage {
        print(
            """
            Used:
                \(usage.promptTokens ?? 0) prompt tokens
                \(usage.completionTokens ?? 0) completion tokens
                \(usage.totalTokens ?? 0) total tokens
            """
        )
    }
}  catch AIProxyError.unsuccessfulRequest(let statusCode, let responseBody) {
    print("Received non-200 status code: \(statusCode) with response body: \(responseBody)")
} catch {
    print("Could not create perplexity chat completion: \(error.localizedDescription)")
}

How to create a streaming chat completion with Perplexity

import AIProxy

let perplexityService = AIProxy.perplexityService(
    partialKey: "partial-key-from-your-developer-dashboard",
    serviceURL: "service-url-from-your-developer-dashboard"
)

let perplexityService = AIProxy.perplexityService(
    partialKey: "partial-key-from-your-developer-dashboard",
    serviceURL: "service-url-from-your-developer-dashboard"
)

do {
    let stream = try await perplexityService.streamingChatCompletionRequest(body: .init(
        messages: [.user(content: "How many national parks in the US?")],
        model: "llama-3.1-sonar-small-128k-online"
    ))
    for try await chunk in stream {
        print(chunk.choices.first?.delta?.content ?? "")
    }
}  catch AIProxyError.unsuccessfulRequest(let statusCode, let responseBody) {
    print("Received non-200 status code: \(statusCode) with response body: \(responseBody)")
} catch {
    print("Could not create perplexity streaming chat completion: \(error.localizedDescription)")
}