AxiosError: maxContentLength size of -1 exceeded
Problem
Doing an axiosRequest with const a = await axios.get(URL) and without any further configuration, it gives error: ' AxiosError: maxContentLength size of -1 exceeded' The contentLength of the website is significant, >185KB, but as I did not configure any maxContentLength then this behaviour is nonsense. What's the fix? Tried configuring a huge maxContentLength but still shows the error
Error Output
error: ' AxiosError: maxContentLength size of -1 exceeded'
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2 Fixes
Configure Axios maxContentLength Properly
The error 'AxiosError: maxContentLength size of -1 exceeded' occurs because Axios has a default maxContentLength of -1, which means it will not accept any response body. This is likely due to a misconfiguration or an issue with the server response headers. When the response exceeds the default limit, Axios throws this error.
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- 1
Set maxContentLength in Axios Request
Explicitly set the maxContentLength option in your Axios request to a value greater than the expected content length of the response.
typescriptconst a = await axios.get(URL, { maxContentLength: 200000 }); - 2
Check Server Response Headers
Ensure that the server is sending the correct Content-Length header in the response. If the header is missing or incorrect, it can lead to this error.
typescriptconsole.log(response.headers['content-length']); - 3
Handle Large Responses Appropriately
If the response is expected to be large, consider using streaming or chunked responses to handle data efficiently without hitting the maxContentLength limit.
typescriptconst response = await axios.get(URL, { responseType: 'stream' }); - 4
Test with Different Content Lengths
Test the Axios request with different URLs that return varying content lengths to ensure that the configuration works as expected.
typescriptconst testUrl = 'https://example.com/largefile'; const response = await axios.get(testUrl, { maxContentLength: 200000 });
Validation
Confirm that the Axios request completes successfully without throwing the maxContentLength error. Additionally, verify that the response data is received correctly and matches the expected content.
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1 low-confidence fix
Configure Axios maxContentLength Properly
The error 'AxiosError: maxContentLength size of -1 exceeded' occurs because Axios has a default setting for maxContentLength that is set to -1, which means no limit is enforced. However, certain environments or proxies may impose their own limits, leading to this error when the response exceeds those limits. This can happen if the server response is larger than what is allowed by the environment or if the Axios instance is misconfigured.
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- 1
Create an Axios Instance with Custom Configuration
Instead of using the default Axios instance, create a custom instance with a defined maxContentLength that exceeds the expected response size.
javascriptconst axiosInstance = axios.create({ maxContentLength: 2000000 }); - 2
Use the Custom Axios Instance for Requests
Replace the default axios.get call with the custom instance to ensure the new configuration is applied.
javascriptconst a = await axiosInstance.get(URL); - 3
Check for Environment-Specific Limits
Verify if there are any environment-specific limits (e.g., proxy settings, server configurations) that might be affecting the response size. Adjust those settings if necessary.
- 4
Test the Configuration
Run the application to ensure that the Axios request completes successfully without exceeding the content length limit.
Validation
Confirm that the Axios request completes without throwing the maxContentLength error. Additionally, log the response size to ensure it is within the expected range.
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Environment
Submitted by
Alex Chen
2450 rep