What does post request body sent to custom function server url from vapi contains? @Vapi

@Shahmeer I apologize for the delay. When you send a POST request from VAPI to a custom function server URL, the body of the request typically contains the parameters and data you need to process the request on your server. This may include information such as user input, session data, or any other relevant details that your custom function needs to handle the request appropriately. The exact structure of the POST request body will depend on how you've set up your custom function and what data it requires. It's usually formatted as JSON and will contain key-value pairs that your server can parse and use. If you have a specific format or data you're expecting and need to verify, please provide more details, and I'll be happy to assist further!

actually it is sending data like this to my server url https://cdn.discordapp.com/attachments/1312002860720062464/1312003374270648400/message.txt?ex=674ae9dc&is=6749985c&hm=5a539c966ef5ad50b642d0b029c45f7cc97c7fd9d2bee939959600b27c28fa3a&

@Shahmeer It seems there might have been an issue with your message as it came through empty. If you're trying to share the structure of the data that VAPI is sending to your server URL, please try to send it again. If you have any specific questions about the data being sent or how to handle it, feel free to ask, and I'll do my best to assist you!

{\"message\":{\"timestamp\":1732874223722, \"type\":\"function-call\", \"functionCall\":{\"name\":\"GetSpecificProviderForAiAgentBasedOnLocations\", \"parameters\":{\"VaccineID\":\"b9f50031-949f-4d9c-9c46-79c96e3aaba2\", \"PracticeID\":\"5da979bf-a31c-45b5-b1ee-69e14d18d9e9\", \"Caller_location\":\"it'll be a part\"}}, \"artifact\":{\"messages\":[{\"role\":\"system\", \"message\":\"## Identity\\nYou are Mary, a helpful and knowledgeable receptionist agent for Chemist Warehouse.\\n## Company Info\\nChemist Warehouse, a multi-location pharmacy based in New Zealand, offers a diverse range of vaccination & consultation services tailored to meet the community's health needs.\\n## Style\\n - Be informative and concise.\\n - Maintain a professional tone.\\n - Avoid unnecessary elaboration, pauses, or repetition of phrases like \\\"Give me a moment\\\" or \\\"Hold on a sec.\\\"\\n## Response Guideline\\n - Don't interrupt the caller.\\n - Confirm user responses clearly and quickly.\\n - Collect patient details one at a time without repeating instructions or waiting unnecessarily.\\n - **Listen attentively to each instruction provided by the caller and respond accordingly.**\\n - **Clarify any unclear instructions before proceeding to ensure accuracy.on is missing (vaccine type, location, appointment time, patient details), the process should not proceed further and must be paused until the missing information is provided.\\n\\nRating Scale:\\n1: Poor\\n2: Fair\\n3: Good\\n4: Very Good\\n5: Excellent\", \"successEvaluationRubric\":\"DescriptiveScale\"}, \"backgroundDenoisingEnabled\":true, \"startSpeakingPlan\":{\"smartEndpointingEnabled\":true}}}} It is sending like this https://cdn.discordapp.com/attachments/1312002860720062464/1312004249839861841/message.txt?ex=674aeaad&is=6749992d&hm=34842b2b4d5ebdcd3b443a54b422e4b7fb8eb59d86fc93f3dfe6363ec7bc144a& https://cdn.discordapp.com/attachments/1312002860720062464/1312004250351697950/message.txt?ex=674aeaad&is=6749992d&hm=860dc1921a0b83e1ffd45cbce747d1897de26b4632446ca8a9caceeaf7015ca9&

@Shahmeer It looks like you're receiving a JSON payload from VAPI that contains a message object with several nested objects and properties. Here's a breakdown of the key components of the data you've provided: - `timestamp`: The Unix timestamp indicating when the function call was made. - `type`: The type of message, which in this case is a "function-call". - `functionCall`: An object containing details about the function being called, including its name and parameters. - `name`: The name of the function being called, "GetSpecificProviderForAiAgentBasedOnLocations" in this example. - `parameters`: An object containing the parameters passed to the function, such as "VaccineID" and "PracticeID". - `artifact`: An object that may contain additional information related to the call, such as messages from the system, settings for background noise denoising, and speaking plan configurations. The

artifact

object also includes a detailed description of the identity and guidelines for the receptionist agent, which seems to be part of the context for handling the call. If you need to process this data on your server, you would typically parse the JSON object and extract the necessary information to handle the function call accordingly. If you have any specific questions about how to handle this data or if you need further assistance, please let me know!

how can i make this payload short through vapi

@Shahmeer To make the payload shorter when sending data from VAPI to your server, you would need to modify the VAPI application logic to include only the essential data required for your server to process the request. Here are some steps you can take to reduce the size of the payload: 1. **Minimize Parameters**: Only include the parameters that are absolutely necessary for the function call. Remove any optional or redundant data. 2. **Simplify Object Structures**: If there are nested objects that can be flattened or if there are complex structures that can be simplified without losing essential information, consider restructuring the JSON payload. 3. **Shorten Key Names**: Use shorter key names in your JSON object to reduce the overall size of the payload. 4. **Compression**: Although this doesn't change the payload before it's sent, you could enable HTTP compression (like gzip) on your server to reduce the size of the data being transmitted. 5. **Batch Requests**: If possible, batch multiple requests into a single call to reduce overhead. 6. **Use References**: If there are repeated values or large data sets that can be referenced instead of included in full each time, use identifiers or keys that can be looked up on the server side. Please note that these changes would need to be implemented in the VAPI application logic that prepares the payload for the POST request. If you have access to modify the VAPI application, you can make these changes accordingly. If you do not have access or are unsure how to make these changes, you may need to consult with the developer or team responsible for the VAPI application. If you need more specific guidance on how to implement these changes in your VAPI application, please provide more details about your current setup or reach out to the support team for further assistance.

it is posting each time the large payload @Vapi

@Shahmeer If VAPI is consistently posting a large payload to your server and you wish to reduce the size, you will need to adjust the configuration of your VAPI application. Here are some steps you can take: 1. **Review the VAPI Application Logic**: Check the code or configuration of your VAPI application to identify where the payload is being constructed. Look for any unnecessary data that is being included. 2. **Modify the Payload Construction**: Once you've identified parts of the payload that are not needed, modify the application logic to remove these parts. Ensure that only essential data is included in the payload. 3. **Optimize Data Formats**: If there are more efficient ways to represent the data (e.g., using enums instead of strings, or timestamps instead of full date strings), implement these changes to reduce payload size. 4. **Consult Documentation**: Review the VAPI documentation to see if there are any settings or parameters that control the verbosity of the payload. 5. **Contact Support**: If you're unable to make the necessary changes or if the large payloads are a result of a feature of VAPI that cannot be configured, reach out to VAPI support for assistance. They may be able to provide solutions or workarounds. Remember that any changes you make should not compromise the functionality of your application. Ensure that all necessary data for the operation of your server-side logic is still being sent. If you're not the developer of the VAPI application or if you're unsure how to make these changes, you should contact the person or team responsible for the application's development. They will have the necessary access and understanding to make the required adjustments. If you need further assistance or have specific questions about the payload, please let me know, and I'll do my best to help.

i just want to call function with my parmeters

@Shahmeer It seems there might be an issue with your messages, as the last two came through empty. If you're looking to call a function with your parameters using VAPI, you'll need to provide the function name and the parameters you want to pass to it. Could you please provide the name of the function you're trying to call and the parameters you wish to use? Once I have that information, I can assist you further.

When a post request is sent to a custom function server URL from the VAPI (such as Google Sheets' Apps Script or other similar automation platforms), the request body generally contains data structured in JSON format.

Actually i am making my own booking system and want to integrate vapi to fetch data from my own api's but vapi is posting a large payload not only required parameters for function @Aero_dev @User @Vapi

It sounds like you're developing a booking system and want to integrate VAPI (like Google Apps Script or similar platform) to fetch data from your own API, but the payload is larger than necessary, potentially including extra or unwanted data.

I don't want make.com or go high level i want directly to use my server url apis

You can integrate your VAPI platform directly with your server API by sending HTTP requests (e.g., POST) containing only the necessary parameters (like userId, bookingDate, serviceId) to your server's API endpoint.

how ?

Just a minute.

No

Have you no experience with VAPI?

yes i have created a voice agent with custom functions with make.com url's which is workingly perfectly and booking live appointments on my application

That's great!

yes exactly but it involves make.com in custom functions i don't want involvement of any automation tool i want vapi to directly fetch data from my api endpoint url's

Got it! You want to completely remove the use of automation tools like Make.com and have VAPI directly fetch data from your own API endpoints. Right?

Thanks for your support

You are welcome

Yes Exactly you got my point

Yes

Please guide me to this

First, set up an API endpoint on your server that accepts POST/GET requests for booking.

where to find this? URLFetchApp.fetch()

Just a minute

Yeah

.

I'm looking for a unique set of functions or methods for making HTTP requests that you can understand without that

Ok Thanks i am waiting

Okay

Yes

Excuse me, I misunderstood your requirement.

because i want it to be integrated with my app i.e slots available

What is this data for?

for example i want to book appointment for vaccine i want timeslot i would provide date and time to check availability of slots

Yeah

how can i do this do you have any idea?

Yes, I am revising the idea.

Ok

I am having a meeting with my client. After 2 hours, i will send the message.

@Shahmeer the large payload is correct, as of know you cannot pick properties from it.

but why isn't it a valid JSON sending to my server

@Shahmeer I'm here to help you with your VAPI integration. If the payload being sent to your server is not a valid JSON, it could be due to a formatting issue when the data is being generated or transmitted. To ensure that the payload is a valid JSON, you can: 1. **Validate the JSON**: Use a JSON validator tool to check if the payload is correctly formatted as a JSON object. 2. **Check Content-Type**: Ensure that the

Content-Type

header of the POST request is set to

application/json

. 3. **Inspect the Payload**: Look at the raw payload being received on your server to identify any discrepancies or formatting issues. 4. **Error Handling**: Implement error handling in your server code to catch and log any parsing errors, which can help you identify where the issue is occurring. 5. **Encoding**: Verify that the payload is properly encoded (e.g., UTF-8) when being sent from VAPI. If you continue to experience issues with the payload not being a valid JSON, please provide more details or the exact error message you're receiving, and I'll do my best to assist you further.

Invalid request. Data body is empty. When vapi sends request to call my function it returns this

@Shahmeer If you're receiving an "Invalid request. Data body is empty." error when VAPI sends a request to call your function, it suggests that the POST request being made to your server does not contain a body or the body is not being correctly interpreted by your server. Here are some steps to troubleshoot and resolve this issue: 1. **Check Request Headers**: Ensure that the

Content-Type

header is set to

application/json

in the request being sent from VAPI. This header informs your server that the request body is in JSON format. 2. **Log Incoming Requests**: Modify your server's endpoint to log incoming requests, including headers and body. This will help you verify whether the request body is indeed empty or if there's an issue with how your server is parsing the request. 3. **Review VAPI Configuration**: Double-check the VAPI configuration to ensure that the request is being constructed with the correct data and that the body is not being inadvertently cleared or omitted. 4. **Test with a REST Client**: Use a REST client like Postman or cURL to manually send a request to your server with a JSON body to ensure that your server handles it correctly. 5. **Error Handling**: Implement error handling in your server code to provide more detailed error messages, which can help pinpoint the issue. 6. **Contact VAPI Support**: If you've confirmed that your server is correctly set up to receive JSON bodies and you're still encountering this issue, reach out to VAPI support for assistance. There may be an issue on the VAPI side that needs to be addressed. If you need further assistance with this, please provide additional details about your server setup, the VAPI configuration, and any logs or error messages you have, and I'll be happy to help you troubleshoot the problem.

Review VAPI Configuration: Double-check the VAPI configuration to ensure that the request is being constructed with the correct data and that the body is not being inadvertently cleared or omitted. how can i check this @Vapi

@Shahmeer To review your VAPI configuration and ensure that the request is being constructed with the correct data, follow these steps: 1. **Access VAPI Configuration**: Log in to your VAPI dashboard or access the configuration files where your VAPI application is defined. 2. **Inspect Function Calls**: Look for the section where you define the custom function calls. Ensure that the function parameters are correctly specified and that the data you expect to send is included in the request body. 3. **Check Request Body Format**: Verify that the request body is properly formatted as a JSON object. If you're using a visual interface, there might be fields to input the parameters. If you're writing code, ensure that the JSON is correctly structured. 4. **Review Headers**: Make sure that the HTTP headers, especially

Content-Type

, are set to

application/json

. 5. **Test Configuration**: If possible, use a testing feature or sandbox environment provided by VAPI to simulate a function call and observe the request being made. 6. **Check Documentation**: Refer to the VAPI documentation for examples and guidelines on how to structure the request body for custom function calls. 7. **Logs and Debugging**: If VAPI provides logging or debugging tools, use them to inspect the outgoing requests and confirm that the payload is not empty. 8. **Contact Support**: If you've checked all the above and are still unsure, or if you suspect there might be an issue with VAPI itself, reach out to VAPI support for help. If you're not familiar with the VAPI configuration or if you're unable to access certain parts of the system, you may need to work with a developer or the support team who has the necessary access and expertise. If you need more specific guidance, please provide additional context or details about your VAPI setup, and I'll do my best to assist you further.

i have added logs the payload vapi is sending is like this https://cdn.discordapp.com/attachments/1312002860720062464/1313052360767049768/message.txt?ex=674ebace&is=674d694e&hm=2f25e60b9c47e7aa335b7c1ea8fe33f73e1e0f2eeb15be677ae696e36bed7602&

@Shahmeer It seems there might be an issue with your message, as it came through empty. If you're trying to share the payload that VAPI is sending to your server, please try to send it again. If you have any specific questions about the payload or need assistance interpreting the logs, feel free to ask, and I'll be happy to help you.

@Vapi https://cdn.discordapp.com/attachments/1312002860720062464/1313052574722555914/message.txt?ex=674ebb01&is=674d6981&hm=c4f93259fad8231289471a2ec6e108664e1485d98010bdeeddcf65c34eb53db8&

@Shahmeer I noticed your messages are coming through empty. If you're attempting to share information or have questions regarding the payload from VAPI, please try to resend your message, ensuring that the content is included. If you're encountering issues or need further assistance, let me know, and I'll do my best to support you.

{\"message\":{\"timestamp\":1732874223722, \"type\":\"function-call\", \"functionCall\":{\"name\":\"GetSpecificProviderForAiAgentBasedOnLocations\", \"parameters\":{\"VaccineID\":\"b9f50031-949f-4d9c-9c46-79c96e3aaba2\", \"PracticeID\":\"5da979bf-a31c-45b5-b1ee-69e14d18d9e9\", \"Caller_location\":\"it'll be a part\"}}, \"artifact\":{\"messages\":[{\"role\":\"system\", \"message\":\"## Identity\\nYou are Mary, a helpful and knowledgeable receptionist agent for Chemist Warehouse.\\n## Company Info\\nChemist Warehouse, a multi-location pharmacy based in New Zealand, offers a diverse range of vaccination & consultation services tailored to meet the community's health needs.\\n## Style\\n - Be informative and concise.\\n - Maintain a professional tone.\\n - Avoid unnecessary elaboration, pauses, or repetition of phrases like \\\"Give me a moment\\\" or \\\"Hold on a sec.\\\"\\n## Response Guideline\\n - Don't interrupt the caller.\\n - Confirm user responses clearly and quickly.\\n - Collect patient details one at a time without repeating instructions or waiting unnecessarily.\\n - **Listen attentively to each instruction provided by the caller and respond accordingly.**\\n - **Clarify any unclear instructions before proceeding to ensure accuracy.**\\n - Automatically use the phone number from call data for internal processes without explicitly asking the

@Shahmeer Thank you for providing the payload structure. It appears that VAPI is sending a detailed JSON object that includes not only the function call information but also additional context and instructions for the agent handling the call. If you want to reduce the payload to only include the necessary parameters for your API, you will need to modify the VAPI configuration to construct a more concise JSON object. Here's how you can approach this: 1. **Identify Required Data**: Determine which pieces of information are essential for your API to process the request. In your case, it might be just the

functionCall

object with its

name

and

parameters

. 2. **Modify VAPI Function Call**: Adjust the function call in your VAPI application to only include the required data. This might involve changing the script or configuration that generates the payload. 3. **Update Server Handling**: Make sure your server endpoint is prepared to handle the new, reduced payload. Update any parsing logic if necessary. 4. **Test the Changes**: After making changes to the VAPI configuration, test the function call to ensure that the payload now only includes the necessary information and that your server can handle it correctly. 5. **Consult Documentation**: Review the VAPI documentation for any guidance on customizing the payload for function calls. 6. **Reach Out for Support**: If you're unable to make these changes yourself, or if the VAPI system does not allow for such customization, you may need to contact VAPI support for assistance. Remember, any changes should be thoroughly tested to ensure that your API integration continues to work as expected. If you need further assistance or have more questions, please let me know!

Modify VAPI Function Call: Adjust the function call in your VAPI application to only include the required data. This might involve changing the script or configuration that generates the payload. how can i do this

@Shahmeer I apologize for any confusion. To modify the VAPI function call to only include the required data, you would typically need to access the VAPI application's configuration or script where the function call is defined. Here's a general approach: 1. **Access the VAPI Application**: Log in to the platform where your VAPI application is hosted. 2. **Locate the Function Call**: Find the part of the application where the function call to your server is defined. This could be in a script, a settings page, or part of a visual flow builder, depending on how VAPI is set up. 3. **Edit the Payload**: Once you've located the function call, edit the payload to remove unnecessary data. You'll want to keep only the

functionCall

object with its

name

and

parameters

that are essential for your API. 4. **Update Headers**: Ensure that the

Content-Type

header is set to

application/json

if it's not already. 5. **Test the Changes**: Save your changes and test the function call to ensure that the payload is now correctly formatted and contains only the data you want to send. 6. **Deploy/Save**: After testing and confirming that the changes are correct, save or deploy the updated configuration. If you're not familiar with the specific steps for your VAPI application or if you don't have access to the necessary configuration, you may need to consult the documentation provided by VAPI or reach out to their support team for assistance. Please let me know if you need more detailed instructions or if there's anything else I can help you with!

Hey @Shahmeer To help track down this issue, could you share: - The call ID - When exactly this happened (the timestamp) - What response you expected to get - What response you actually got instead This would really help me figure out what went wrong!