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Enable custom LLM gateway configurations via configurable model constants #97

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Enable custom LLM gateway configurations via configurable model constants #97

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41365cb
Refactor model constants in server.ts for improved configurability in…
maximilianmueller-tech Mar 31, 2026
2928bc8
Update server.ts
maximilianmueller-tchibo Mar 31, 2026
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15 changes: 10 additions & 5 deletions src/server.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -13,6 +13,11 @@ import { ChatCompletionResponseSchema, SearchResponseSchema } from "./validation

const PERPLEXITY_API_KEY = process.env.PERPLEXITY_API_KEY;
const PERPLEXITY_BASE_URL = process.env.PERPLEXITY_BASE_URL || "https://api.perplexity.ai";

const SONAR_PRO_MODEL = process.env.SONAR_PRO_MODEL || "sonar-pro";
const SONAR_REASONING_MODEL = process.env.SONAR_REASONING_MODEL || "sonar-reasoning-pro";
const SONAR_DEEP_RESEARCH_MODEL = process.env.SONAR_DEEP_RESEARCH_MODEL || "sonar-deep-research";

const VERSION = "0.9.0";

export function getProxyUrl(): string | undefined {
Expand Down Expand Up @@ -191,12 +196,12 @@ export async function consumeSSEStream(response: Response): Promise<ChatCompleti

export async function performChatCompletion(
messages: Message[],
model: string = "sonar-pro",
model: string = SONAR_PRO_MODEL,
stripThinking: boolean = false,
serviceOrigin?: string,
options?: ChatCompletionOptions
): Promise<string> {
const useStreaming = model === "sonar-deep-research";
const useStreaming = model === SONAR_DEEP_RESEARCH_MODEL;

const body: Record<string, unknown> = {
model: model,
Expand Down Expand Up @@ -393,7 +398,7 @@ export function createPerplexityServer(serviceOrigin?: string) {
...(search_domain_filter && { search_domain_filter }),
...(search_context_size && { search_context_size }),
};
const result = await performChatCompletion(messages, "sonar-pro", false, serviceOrigin, Object.keys(options).length > 0 ? options : undefined);
const result = await performChatCompletion(messages, SONAR_PRO_MODEL, false, serviceOrigin, Object.keys(options).length > 0 ? options : undefined);
return {
content: [{ type: "text" as const, text: result }],
structuredContent: { response: result },
Expand Down Expand Up @@ -431,7 +436,7 @@ export function createPerplexityServer(serviceOrigin?: string) {
const options = {
...(reasoning_effort && { reasoning_effort }),
};
const result = await performChatCompletion(messages, "sonar-deep-research", stripThinking, serviceOrigin, Object.keys(options).length > 0 ? options : undefined);
const result = await performChatCompletion(messages, SONAR_DEEP_RESEARCH_MODEL, stripThinking, serviceOrigin, Object.keys(options).length > 0 ? options : undefined);
return {
content: [{ type: "text" as const, text: result }],
structuredContent: { response: result },
Expand Down Expand Up @@ -473,7 +478,7 @@ export function createPerplexityServer(serviceOrigin?: string) {
...(search_domain_filter && { search_domain_filter }),
...(search_context_size && { search_context_size }),
};
const result = await performChatCompletion(messages, "sonar-reasoning-pro", stripThinking, serviceOrigin, Object.keys(options).length > 0 ? options : undefined);
const result = await performChatCompletion(messages, SONAR_REASONING_MODEL, stripThinking, serviceOrigin, Object.keys(options).length > 0 ? options : undefined);
return {
content: [{ type: "text" as const, text: result }],
structuredContent: { response: result },
Expand Down