API Request - Parse Authentication Token

[greenmotion]

I am very confused and need some help. :(

I need to make a Web API Request to retrieve data from a different system. For this, I need to make an "authenticate" API Request first, which will get me the bearer authentication token.

How do I extract this authentication token from the data output of the first API Request?

Output:
{
user_id: "1234567"
principal_id: "gfgfdgfsjgfskgdfgdf"
tenant_id: "435436625625"
tenant_name: "Co Company"
token: "eyJraWQGciOiJSUzUxMiIsInR5cCI6IkpXVCJ9.ey..."
json_web_token: "eyJraWQGciOiJSUzUxMiIsInR5cCI6IkpXVCJ9.ey..."
}

Also, the fact items continuously keep getting renamed is somewhat frustrating. I understand why this is needed at times, but it is just confusing. For instance, I am running v1.1.4 now, and there is no longer a Parse JSON activity. Where did it go or what did it move to?

Thanks everyone!

[dosubot[bot]]

To extract the authentication token from the JSON response in the current version of the codebase, you can use the ParseJSONDataComponent class, which utilizes JQ queries to filter JSON data. Here's how you can do it:

1. Use the ParseJSONDataComponent and provide the JSON response as the input_value.
2. Set the query input to a JQ query that extracts the 'token' field. For example, your JQ query would be ".token".

Here's a code snippet demonstrating how to use the ParseJSONDataComponent:

from langflow.schema import Data
from langflow.components.processing.parse_json_data import ParseJSONDataComponent

# Example JSON response
json_response = '{"user_id": "1234567", "principal_id": "gfgfdgfsjgfskgdfgdf", "tenant_id": "435436625625", "tenant_name": "Co Company", "token": "eyJraWQGciOiJSUzUxMiIsInR5cCI6IkpXVCJ9.ey...", "json_web_token": "eyJraWQGciOiJSUzUxMiIsInR5cCI6IkpXVCJ9.ey..."}'

# Create an instance of the ParseJSONDataComponent
parser = ParseJSONDataComponent()

# Set the input value and query
parser.input_value = Data(data=json_response)
parser.query = ".token"

# Extract the 'token' field
filtered_data = parser.filter_data()

# Print the extracted token
for data in filtered_data:
    print(data.data)  # This should output the token value

Regarding the renaming of activities, the Parse JSON activity has been replaced by the ParseJSONDataComponent in version 1.1.4. This change is part of the ongoing updates to improve functionality and maintain consistency in the codebase ^[1].

To continue talking to Dosu, mention @dosu.

---

^{Help Dosu learn! Give it feedback: Great Response | Irrelevant Answer | Incorrect Sources | Too Verbose | Hallucination | Bug Report | Other}

[greenmotion]

How do I inject this code into my flow from the langflow GUI?

[dosubot[bot]]

To inject custom Python code into your flow using the Langflow GUI, you can follow these steps:

1. Export Your Flow's JSON File:

   • Go to your Workspace in the Langflow GUI.
   • Click on Settings and select Export to download your flow’s JSON file.

2. Prepare the Python Script:

   • Ensure the path in your script matches the location of the downloaded JSON file on your machine.
   • Use the following code template to interact with your flow:

   from langflow.load import run_flow_from_json
   
   TWEAKS = {
     # Add any necessary tweaks for your components here
   }
   
   result = run_flow_from_json(
       flow="./path-to-your-flow.json",  # Update with your JSON file path
       input_value="your input value here",  # Replace with your actual input
       fallback_to_env_vars=True,  # Optional: set to False if not needed
       tweaks=TWEAKS
   )
   
   print(result)

3. Run the Script:

   • Save the script as a .py file, for example, run_flow.py.
   • Execute the script using the command:

   python3 run_flow.py

This process allows you to integrate and execute custom Python code within your Langflow setup, leveraging the flow defined in the JSON file ^[1].

To continue talking to Dosu, mention @dosu.

---

^{Help Dosu learn! Give it feedback: Great Response | Irrelevant Answer | Incorrect Sources | Too Verbose | Hallucination | Bug Report | Other}

[greenmotion]

from langflow.components.processing.parse_json_data import ParseJSONDataComponent causes the following error:

Error building Component: No Component subclass found in the code string. Code snippet: from langflow.schema import Data
from langflow.components.processing.parse_json_data import ParseJSO
Traceback (most recent call last):
File "/local/apps/langflow/lib/python3.12/site-packages/langflow/custom/utils.py", line 397, in build_custom_component_template
has_template_config = hasattr(custom_component, "template_config")

[dosubot[bot]]

The error message "No Component subclass found in the code string" suggests that the ParseJSONDataComponent might not be recognized as a subclass of Component in your setup. Here are a few things to check:

1. Correct Import Path: Ensure that you are using the correct import path for ParseJSONDataComponent:

   from langflow.components.processing.parse_json_data import ParseJSONDataComponent

   This is the correct path according to the Langflow codebase ^[1].

2. Component Subclass: Verify that ParseJSONDataComponent is indeed a subclass of Component. If there have been recent changes to the codebase, ensure that the class definition still inherits from Component.

3. Environment Setup: Make sure your environment is correctly set up with all necessary dependencies. You might want to check if there are any updates or changes in the Langflow version you are using that could affect component recognition.

4. Code String: Double-check the code snippet you are using to ensure there are no typos or incomplete lines that might cause the error.

If these steps don't resolve the issue, consider reviewing any recent changes in the Langflow codebase or your local setup that might affect component registration.

To continue talking to Dosu, mention @dosu.

---

^{Help Dosu learn! Give it feedback: Great Response | Irrelevant Answer | Incorrect Sources | Too Verbose | Hallucination | Bug Report | Other}