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feat: attach to playwright #923

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e8802b9
feat: attach to playwright
4t145 Jul 28, 2025
9e3c8b0
Update types/stagehand.ts
4t145 Jul 28, 2025
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21 changes: 16 additions & 5 deletions lib/index.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -76,6 +76,7 @@ async function getBrowser(
browserbaseSessionCreateParams?: Browserbase.Sessions.SessionCreateParams,
browserbaseSessionID?: string,
localBrowserLaunchOptions?: LocalBrowserLaunchOptions,
attachToLocalBrowser?: BrowserContext,
): Promise<BrowserResult> {
if (env === "BROWSERBASE") {
if (!apiKey) {
Expand All @@ -95,7 +96,6 @@ async function getBrowser(
let sessionUrl: string | undefined = undefined;
let sessionId: string;
let connectUrl: string;

const browserbase = new Browserbase({
apiKey,
});
Expand Down Expand Up @@ -226,6 +226,16 @@ async function getBrowser(

return { browser, context, debugUrl, sessionUrl, sessionId, env };
} else {
if (attachToLocalBrowser) {
logger({
category: "init",
message: "attaching to existing local browser context",
level: 1,
});
const context = attachToLocalBrowser;
const browser = context.browser();
return { browser, context, env };
}
if (localBrowserLaunchOptions?.cdpUrl) {
if (!localBrowserLaunchOptions.cdpUrl.includes("connect.connect")) {
logger({
Expand All @@ -240,7 +250,6 @@ async function getBrowser(
},
});
}

const browser = await chromium.connectOverCDP(
localBrowserLaunchOptions.cdpUrl,
);
Expand Down Expand Up @@ -387,6 +396,7 @@ export class Stagehand {
public apiClient: StagehandAPI | undefined;
public readonly waitForCaptchaSolves: boolean;
private localBrowserLaunchOptions?: LocalBrowserLaunchOptions;
private attachToLocalBrowser?: BrowserContext;
public readonly selfHeal: boolean;
private cleanupCalled = false;
public readonly actTimeoutMs: number;
Expand Down Expand Up @@ -528,6 +538,7 @@ export class Stagehand {
systemPrompt,
useAPI = true,
localBrowserLaunchOptions,
attachToLocalBrowser,
waitForCaptchaSolves = false,
logInferenceToFile = false,
selfHeal = false,
Expand Down Expand Up @@ -616,8 +627,7 @@ export class Stagehand {
this.llmClient = llmClient;
this.logger({
category: "init",
message:
"Custom LLM clients are currently not supported in API mode",
message: "Custom LLM clients are currently not supported in API mode",
level: 1,
});
this.usingAPI = false;
Expand Down Expand Up @@ -660,7 +670,7 @@ export class Stagehand {
}
this.waitForCaptchaSolves = waitForCaptchaSolves;
this.localBrowserLaunchOptions = localBrowserLaunchOptions;

this.attachToLocalBrowser = attachToLocalBrowser;
if (this.usingAPI) {
this.registerSignalHandlers();
}
Expand Down Expand Up @@ -786,6 +796,7 @@ export class Stagehand {
this.browserbaseSessionCreateParams,
this.browserbaseSessionID,
this.localBrowserLaunchOptions,
this.attachToLocalBrowser,
).catch((e) => {
this.stagehandLogger.error("Error in init:", { error: String(e) });
const br: BrowserResult = {
Expand Down
35 changes: 35 additions & 0 deletions pnpm-lock.yaml
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3 changes: 2 additions & 1 deletion types/stagehand.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -4,7 +4,7 @@ import { LLMProvider } from "../lib/llm/LLMProvider";
import { LogLine } from "./log";
import { AvailableModel, ClientOptions } from "./model";
import { LLMClient } from "../lib/llm/LLMClient";
import { Cookie } from "playwright";
import { Cookie, BrowserContext } from "playwright";
import { AgentProviderType } from "./agent";

export interface ConstructorParams {
Expand Down Expand Up @@ -87,6 +87,7 @@ export interface ConstructorParams {
* The parameters to use for launching a local browser
*/
localBrowserLaunchOptions?: LocalBrowserLaunchOptions;
attachToLocalBrowser?: BrowserContext;
/**
* Log the inference to a file
*/
Expand Down