Interface FetchAsync


public interface FetchAsync
A domain for letting clients substitute browser's network layer with client code.
  • Method Details

    • continueRequest

      CompletableFuture<Void> continueRequest(String requestId)
      Continues the request, optionally modifying some of its parameters.
      Parameters:
      requestId - An id the client received in requestPaused event.
    • continueRequest

      CompletableFuture<Void> continueRequest(String requestId, String url, String method, String postData, List<HeaderEntry> headers, Boolean interceptResponse)
      Continues the request, optionally modifying some of its parameters.
      Parameters:
      requestId - An id the client received in requestPaused event.
      url - If set, the request url will be modified in a way that's not observable by page.
      method - If set, the request method is overridden.
      postData - If set, overrides the post data in the request. (Encoded as a base64 string when passed over JSON)
      headers - If set, overrides the request headers.
      interceptResponse - If set, overrides response interception behavior for this request.
    • continueResponse

      CompletableFuture<Void> continueResponse(String requestId)
      Continues loading of the paused response, optionally modifying the response headers. If either responseCode or headers are modified, all of them must be present.
      Parameters:
      requestId - An id the client received in requestPaused event.
    • continueResponse

      CompletableFuture<Void> continueResponse(String requestId, Integer responseCode, String responsePhrase, List<HeaderEntry> responseHeaders, String binaryResponseHeaders)
      Continues loading of the paused response, optionally modifying the response headers. If either responseCode or headers are modified, all of them must be present.
      Parameters:
      requestId - An id the client received in requestPaused event.
      responseCode - An HTTP response code. If absent, original response code will be used.
      responsePhrase - A textual representation of responseCode. If absent, a standard phrase matching responseCode is used.
      responseHeaders - Response headers. If absent, original response headers will be used.
      binaryResponseHeaders - Alternative way of specifying response headers as a \0-separated series of name: value pairs. Prefer the above method unless you need to represent some non-UTF8 values that can't be transmitted over the protocol as text. (Encoded as a base64 string when passed over JSON)
    • continueWithAuth

      CompletableFuture<Void> continueWithAuth(String requestId, AuthChallengeResponse authChallengeResponse)
      Continues a request supplying authChallengeResponse following authRequired event.
      Parameters:
      requestId - An id the client received in authRequired event.
      authChallengeResponse - Response to with an authChallenge.
    • disable

      Disables the fetch domain.
    • enable

      Enables issuing of requestPaused events. A request will be paused until client calls one of failRequest, fulfillRequest or continueRequest/continueWithAuth.
    • enable

      CompletableFuture<Void> enable(List<RequestPattern> patterns, Boolean handleAuthRequests)
      Enables issuing of requestPaused events. A request will be paused until client calls one of failRequest, fulfillRequest or continueRequest/continueWithAuth.
      Parameters:
      patterns - If specified, only requests matching any of these patterns will produce fetchRequested event and will be paused until clients response. If not set, all requests will be affected.
      handleAuthRequests - If true, authRequired events will be issued and requests will be paused expecting a call to continueWithAuth.
    • failRequest

      CompletableFuture<Void> failRequest(String requestId, ErrorReason errorReason)
      Causes the request to fail with specified reason.
      Parameters:
      requestId - An id the client received in requestPaused event.
      errorReason - Causes the request to fail with the given reason.
    • fulfillRequest

      CompletableFuture<Void> fulfillRequest(String requestId, Integer responseCode)
      Provides response to the request.
      Parameters:
      requestId - An id the client received in requestPaused event.
      responseCode - An HTTP response code.
    • fulfillRequest

      CompletableFuture<Void> fulfillRequest(String requestId, Integer responseCode, List<HeaderEntry> responseHeaders, String binaryResponseHeaders, String body, String responsePhrase)
      Provides response to the request.
      Parameters:
      requestId - An id the client received in requestPaused event.
      responseCode - An HTTP response code.
      responseHeaders - Response headers.
      binaryResponseHeaders - Alternative way of specifying response headers as a \0-separated series of name: value pairs. Prefer the above method unless you need to represent some non-UTF8 values that can't be transmitted over the protocol as text. (Encoded as a base64 string when passed over JSON)
      body - A response body. If absent, original response body will be used if the request is intercepted at the response stage and empty body will be used if the request is intercepted at the request stage. (Encoded as a base64 string when passed over JSON)
      responsePhrase - A textual representation of responseCode. If absent, a standard phrase matching responseCode is used.
    • getResponseBody

      CompletableFuture<GetResponseBodyResult> getResponseBody(String requestId)
      Causes the body of the response to be received from the server and returned as a single string. May only be issued for a request that is paused in the Response stage and is mutually exclusive with takeResponseBodyForInterceptionAsStream. Calling other methods that affect the request or disabling fetch domain before body is received results in an undefined behavior.
      Parameters:
      requestId - Identifier for the intercepted request to get body for.
      Returns:
      GetResponseBodyResult
    • takeResponseBodyAsStream

      CompletableFuture<String> takeResponseBodyAsStream(String requestId)
      Returns a handle to the stream representing the response body. The request must be paused in the HeadersReceived stage. Note that after this command the request can't be continued as is -- client either needs to cancel it or to provide the response body. The stream only supports sequential read, IO.read will fail if the position is specified. This method is mutually exclusive with getResponseBody. Calling other methods that affect the request or disabling fetch domain before body is received results in an undefined behavior.