forked from boos/BoosAPI
Refactor proxy-core surfaces and transformer boundaries (#163)
* refactor: add canonical request contracts * test: harden transformer boundary contracts * refactor: adapt protocol transformers to canonical contract * refactor: add cli profile registry * refactor: extract provider profiles * refactor: add conductor and provider executors * refactor: add models surface * refactor: migrate responses surface * refactor: migrate chat surface * refactor: migrate gemini surface * refactor: migrate file surfaces * test: align runtime executor undici mock * fix: preserve compact SSE closeout payloads * feat: support all-api-hub v2 backup imports * fix: aggregate codex oauth SSE final payloads * fix: harden responses SSE failure handling
This commit is contained in:
Cita
@@ -15,6 +15,86 @@ import {
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} from './stream.js';
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describe('geminiGenerateContentTransformer.inbound', () => {
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it('parses native Gemini requests into canonical envelopes', () => {
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const result = geminiGenerateContentTransformer.parseRequest({
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model: 'gemini-2.5-pro',
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contents: [
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{
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role: 'user',
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parts: [{ text: 'hello' }],
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},
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],
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generationConfig: {
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thinkingConfig: {
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thinkingBudget: 512,
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},
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},
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});
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expect(result.error).toBeUndefined();
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expect(result.value).toMatchObject({
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operation: 'generate',
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surface: 'gemini-generate-content',
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cliProfile: 'generic',
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requestedModel: 'gemini-2.5-pro',
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stream: false,
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messages: [
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{
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role: 'user',
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parts: [{ type: 'text', text: 'hello' }],
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},
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],
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reasoning: {
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budgetTokens: 512,
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},
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});
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});
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it('builds native Gemini requests from canonical envelopes', () => {
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const body = geminiGenerateContentTransformer.buildProtocolRequest({
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operation: 'generate',
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surface: 'gemini-generate-content',
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cliProfile: 'gemini_cli',
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requestedModel: 'gemini-2.5-pro',
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stream: false,
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messages: [{ role: 'user', parts: [{ type: 'text', text: 'hello' }] }],
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reasoning: {
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budgetTokens: 512,
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},
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tools: [{ name: 'lookup', inputSchema: { type: 'object' } }],
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toolChoice: 'required',
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});
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expect(body).toMatchObject({
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contents: [
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{
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role: 'user',
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parts: [{ text: 'hello' }],
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},
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],
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tools: [
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{
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functionDeclarations: [
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{
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name: 'lookup',
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parameters: { type: 'object' },
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},
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],
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},
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],
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toolConfig: {
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functionCallingConfig: {
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mode: 'ANY',
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},
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},
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generationConfig: {
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thinkingConfig: {
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thinkingBudget: 512,
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},
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},
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});
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});
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it('preserves native Gemini request fields through normalization', () => {
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const body = geminiGenerateContentTransformer.inbound.normalizeRequest({
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contents: [
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@@ -1,3 +1,6 @@
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import { canonicalRequestFromOpenAiBody } from '../../canonical/request.js';
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import type { CanonicalContentPart, CanonicalRequestEnvelope } from '../../canonical/types.js';
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import type { ProtocolBuildContext, ProtocolParseContext } from '../../contracts.js';
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function normalizeBaseUrl(baseUrl: string): string {
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return (baseUrl || '').replace(/\/+$/, '');
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}
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@@ -10,6 +13,10 @@ function asTrimmedString(value: unknown): string {
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return typeof value === 'string' ? value.trim() : '';
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}
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function isRecord(value: unknown): value is Record<string, unknown> {
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return !!value && typeof value === 'object' && !Array.isArray(value);
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}
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export function resolveGeminiNativeBaseUrl(baseUrl: string, apiVersion: string): string {
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const normalized = normalizeBaseUrl(baseUrl);
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if (baseIncludesVersion(normalized)) return normalized;
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@@ -85,6 +92,189 @@ import { geminiGenerateContentUsage } from './usage.js';
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import { reasoningEffortToGeminiThinkingConfig, geminiThinkingConfigToReasoning } from './convert.js';
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import { buildOpenAiBodyFromGeminiRequest, serializeNormalizedFinalToGemini } from './compatibility.js';
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function parseJsonString(raw: string): unknown {
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const trimmed = raw.trim();
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if (!trimmed) return {};
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try {
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return JSON.parse(trimmed);
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} catch {
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return { raw };
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}
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}
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function parseDataUrl(value: string): { mimeType: string; data: string } | null {
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const match = /^data:([^;,]+);base64,(.+)$/i.exec(value.trim());
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if (!match) return null;
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return {
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mimeType: match[1],
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data: match[2],
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};
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}
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function canonicalPartToGeminiPart(part: CanonicalContentPart): Record<string, unknown> | null {
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if (part.type === 'text') {
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return {
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text: part.text,
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...(part.thought === true ? { thought: true } : {}),
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};
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}
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if (part.type === 'image') {
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const source = typeof part.dataUrl === 'string' && part.dataUrl.trim()
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? part.dataUrl
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: (typeof part.url === 'string' ? part.url : '');
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if (!source) return null;
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const dataUrl = parseDataUrl(source);
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if (dataUrl) {
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return {
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inlineData: {
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mimeType: dataUrl.mimeType,
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data: dataUrl.data,
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},
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};
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}
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return {
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fileData: {
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fileUri: source,
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...(part.mimeType ? { mimeType: part.mimeType } : {}),
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},
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};
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}
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if (part.type === 'file') {
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if (part.fileData) {
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return {
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inlineData: {
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mimeType: part.mimeType || 'application/octet-stream',
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data: part.fileData,
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},
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};
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}
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const fileUri = part.fileUrl || part.fileId;
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if (!fileUri) return null;
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return {
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fileData: {
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fileUri,
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...(part.mimeType ? { mimeType: part.mimeType } : {}),
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},
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};
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}
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if (part.type === 'tool_call') {
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return {
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functionCall: {
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id: part.id,
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name: part.name,
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args: parseJsonString(part.argumentsJson),
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},
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};
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}
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if (part.type === 'tool_result') {
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return {
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functionResponse: {
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name: part.toolCallId,
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response: part.resultJson ?? parseJsonString(part.resultText ?? ''),
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},
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};
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}
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return null;
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}
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function buildGeminiRequestFromCanonical(request: CanonicalRequestEnvelope): Record<string, unknown> {
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const contents: Array<Record<string, unknown>> = [];
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const systemParts: Array<Record<string, unknown>> = [];
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for (const message of request.messages) {
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if (message.role === 'system' || message.role === 'developer') {
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systemParts.push(
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...message.parts
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.map((part) => canonicalPartToGeminiPart(part))
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.filter((part): part is Record<string, unknown> => !!part),
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);
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continue;
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}
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const parts = message.parts
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.map((part) => canonicalPartToGeminiPart(part))
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.filter((part): part is Record<string, unknown> => !!part);
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if (parts.length <= 0) continue;
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if (message.role === 'tool') {
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contents.push({
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role: 'user',
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parts,
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});
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continue;
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}
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contents.push({
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role: message.role === 'assistant' ? 'model' : 'user',
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parts,
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});
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}
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const payload: Record<string, unknown> = {
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contents,
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};
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if (systemParts.length > 0) {
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payload.systemInstruction = {
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role: 'user',
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parts: systemParts,
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};
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}
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const generationConfig: Record<string, unknown> = {};
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if (request.reasoning?.budgetTokens !== undefined) {
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generationConfig.thinkingConfig = {
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thinkingBudget: request.reasoning.budgetTokens,
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};
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} else if (request.reasoning?.effort) {
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generationConfig.thinkingConfig = reasoningEffortToGeminiThinkingConfig(
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request.requestedModel,
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request.reasoning.effort,
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);
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}
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if (Object.keys(generationConfig).length > 0) {
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payload.generationConfig = generationConfig;
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}
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if (Array.isArray(request.tools) && request.tools.length > 0) {
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payload.tools = [{
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functionDeclarations: request.tools.map((tool) => ({
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name: tool.name,
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...(tool.description ? { description: tool.description } : {}),
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...(tool.inputSchema ? { parameters: tool.inputSchema } : {}),
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})),
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}];
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}
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if (request.toolChoice) {
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if (request.toolChoice === 'none') {
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payload.toolConfig = { functionCallingConfig: { mode: 'NONE' } };
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} else if (request.toolChoice === 'auto') {
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payload.toolConfig = { functionCallingConfig: { mode: 'AUTO' } };
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} else if (request.toolChoice === 'required') {
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payload.toolConfig = { functionCallingConfig: { mode: 'ANY' } };
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} else {
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payload.toolConfig = {
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functionCallingConfig: {
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mode: 'ANY',
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allowedFunctionNames: [request.toolChoice.name],
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},
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};
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}
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}
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return payload;
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}
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export const geminiGenerateContentTransformer = {
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protocol: 'gemini/generate-content' as const,
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inbound: geminiGenerateContentInbound,
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@@ -108,6 +298,52 @@ export const geminiGenerateContentTransformer = {
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resolveBaseUrl: resolveGeminiNativeBaseUrl,
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resolveModelsUrl: resolveGeminiModelsUrl,
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resolveActionUrl: resolveGeminiGenerateContentUrl,
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parseRequest(
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body: unknown,
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ctx?: ProtocolParseContext,
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): { value?: CanonicalRequestEnvelope; error?: { statusCode: number; payload: unknown } } {
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const rawBody = isRecord(body) ? body : {};
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const requestedModel = asTrimmedString(rawBody.model ?? ctx?.metadata?.requestedModel);
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if (!requestedModel) {
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return {
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error: {
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statusCode: 400,
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payload: {
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error: {
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message: 'model is required',
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type: 'invalid_request_error',
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},
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},
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},
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};
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}
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const stream = rawBody.stream === true || ctx?.metadata?.stream === true;
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const normalizedBody = geminiGenerateContentInbound.normalizeRequest(rawBody, requestedModel);
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const openAiBody = buildOpenAiBodyFromGeminiRequest({
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body: normalizedBody,
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modelName: requestedModel,
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stream,
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});
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return {
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value: canonicalRequestFromOpenAiBody({
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body: openAiBody,
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surface: 'gemini-generate-content',
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cliProfile: ctx?.cliProfile,
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operation: ctx?.operation,
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metadata: ctx?.metadata,
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passthrough: ctx?.passthrough,
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continuation: ctx?.continuation,
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}),
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};
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},
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buildProtocolRequest(
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request: CanonicalRequestEnvelope,
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_ctx?: ProtocolBuildContext,
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): Record<string, unknown> {
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return buildGeminiRequestFromCanonical(request);
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},
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};
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export {
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