Possible to add a manual delay between each API requests?

[MotherSoraka]

Possible to add a manual delay between each API requests?
or between 2 components?
or define a global requests per seconds limit?

[MotherSoraka]

@dosu

[dosubot]

To add a manual delay between API requests in Langflow, you can modify the make_request method in the APIRequest class within the langflow.components.data module. This is where API requests are handled, and you can introduce delays if needed ^[1][2].

Langflow uses the httpx library for handling API requests, which supports features like request delays and rate limiting through its configuration options and middleware capabilities ^[3]. You can explore these features to implement a global requests per second limit or introduce delays between components.

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[MotherSoraka]

is this not a future by defailt in LangFlow?
i have to edit the code?
@dosu

[dosubot]

Langflow does not have built-in support for request delays or rate limiting as a default feature. To implement these functionalities, you would need to modify the code, specifically in the APIRequestComponent class within the api_request.py module, which handles API request configurations ^[1][2].

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[MotherSoraka]

@dosu:

then modify this component for me and add a new field for delay in seconds, so it would hold the message for that amount before passing it on through its output:

from langflow.base.io.text import TextComponent
from langflow.io import MultilineInput, Output
from langflow.schema.message import Message


class TextOutputComponent(TextComponent):
    display_name = "Text Output"
    description = "Display a text output in the Playground."
    icon = "type"
    name = "TextOutput"

    inputs = [
        MultilineInput(
            name="input_value",
            display_name="Text",
            info="Text to be passed as output.",
        ),
    ]
    outputs = [
        Output(display_name="Message", name="text", method="text_response"),
    ]

    def text_response(self) -> Message:
        message = Message(
            text=self.input_value,
        )
        self.status = self.input_value
        return message

[dosubot]

To modify the TextOutputComponent class to include a delay feature, you can add a new field for the delay in seconds and incorporate this delay in the text_response method. Here's how you can do it:

import time
from langflow.base.io.text import TextComponent
from langflow.io import MultilineInput, Output
from langflow.schema.message import Message

class TextOutputComponent(TextComponent):
    display_name = "Text Output"
    description = "Display a text output in the Playground."
    icon = "type"
    name = "TextOutput"

    inputs = [
        MultilineInput(
            name="input_value",
            display_name="Text",
            info="Text to be passed as output.",
        ),
    ]
    outputs = [
        Output(display_name="Message", name="text", method="text_response"),
    ]

    # New attribute for delay
    delay_seconds: float = 0.0

    def text_response(self) -> Message:
        # Introduce a delay before processing the message
        if self.delay_seconds > 0:
            time.sleep(self.delay_seconds)
        
        message = Message(
            text=self.input_value,
        )
        self.status = self.input_value
        return message

In this modification, a delay_seconds attribute is added to the class. The text_response method uses time.sleep(self.delay_seconds) to introduce a delay before creating and returning the Message object. Adjust the delay_seconds value as needed to set the desired delay duration.

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[MotherSoraka]

@dosu
it didnt add a new field for me to put in the number of seconds for the delay

[dosubot]

To add a new field for inputting the number of seconds for the delay, you need to include a NumberInput in the inputs list of the TextOutputComponent class. Here's how you can modify the class to achieve this:

import time
from langflow.base.io.text import TextComponent
from langflow.io import MultilineInput, Output, NumberInput
from langflow.schema.message import Message

class TextOutputComponent(TextComponent):
    display_name = "Text Output"
    description = "Display a text output in the Playground."
    icon = "type"
    name = "TextOutput"

    inputs = [
        MultilineInput(
            name="input_value",
            display_name="Text",
            info="Text to be passed as output.",
        ),
        NumberInput(
            name="delay_seconds",
            display_name="Delay (seconds)",
            info="Number of seconds to delay the output.",
            default=0
        ),
    ]
    outputs = [
        Output(display_name="Message", name="text", method="text_response"),
    ]

    def text_response(self) -> Message:
        # Retrieve the delay value from the input
        delay_seconds = self.delay_seconds
        if delay_seconds > 0:
            time.sleep(delay_seconds)  # Introduce delay
        
        message = Message(
            text=self.input_value,
        )
        self.status = self.input_value
        return message

In this updated version:

• A NumberInput field named delay_seconds is added to the inputs list. This allows you to specify the delay in seconds.
• The text_response method retrieves the delay value from this input and uses it to introduce a delay before returning the message ^[1].

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