Parse multipart/form-data json body of lambda in Java
I am trying to implement a Lambda function that receives a POST request containing data encoded as multipart/form-data. The message is received through the API Gateway using Lambda Proxy integration and the body is encoded in Base64 when it arrives to the Lambda function. After decoding it manually, I see it contains a multipart body like the following:
-----WebKitFormBoundary3EZ0C3tbP2JpAmz4
Content-Disposition: form-data; name="param1"
value1
-----WebKitFormBoundary3EZ0C3tbP2JpAmz4
Content-Disposition: form-data; name="param2"
value2
------WebKitFormBoundary3EZ0C3tbP2JpAmz4
Content-Disposition: form-data; name="myfile"; filename="ivr.png"
Content-Type: image/png
PNG
... [binary stuff]
------WebKitFormBoundary3EZ0C3tbP2JpAmz4--
What I need is to parse this message in java 8.
so that I can access the individual parts like
1. form data
2 file content
I have tried fileupload, Apache Multipart those didn't workout
Any sols will be helpful.
amazon-web-services java-8 aws-lambda aws-api-gateway
edited Nov 23 '18 at 9:05
John Rotenstein
68k775119
asked Nov 23 '18 at 8:35
Ak S
515
add a comment |
I am trying to implement a Lambda function that receives a POST request containing data encoded as multipart/form-data. The message is received through the API Gateway using Lambda Proxy integration and the body is encoded in Base64 when it arrives to the Lambda function. After decoding it manually, I see it contains a multipart body like the following:
-----WebKitFormBoundary3EZ0C3tbP2JpAmz4
Content-Disposition: form-data; name="param1"
value1
-----WebKitFormBoundary3EZ0C3tbP2JpAmz4
Content-Disposition: form-data; name="param2"
value2
------WebKitFormBoundary3EZ0C3tbP2JpAmz4
Content-Disposition: form-data; name="myfile"; filename="ivr.png"
Content-Type: image/png
PNG
... [binary stuff]
------WebKitFormBoundary3EZ0C3tbP2JpAmz4--
What I need is to parse this message in java 8.
so that I can access the individual parts like
1. form data
2 file content
I have tried fileupload, Apache Multipart those didn't workout
Any sols will be helpful.
amazon-web-services java-8 aws-lambda aws-api-gateway
edited Nov 23 '18 at 9:05
John Rotenstein
68k775119
asked Nov 23 '18 at 8:35
Ak S
515
add a comment |
I am trying to implement a Lambda function that receives a POST request containing data encoded as multipart/form-data. The message is received through the API Gateway using Lambda Proxy integration and the body is encoded in Base64 when it arrives to the Lambda function. After decoding it manually, I see it contains a multipart body like the following:
-----WebKitFormBoundary3EZ0C3tbP2JpAmz4
Content-Disposition: form-data; name="param1"
value1
-----WebKitFormBoundary3EZ0C3tbP2JpAmz4
Content-Disposition: form-data; name="param2"
value2
------WebKitFormBoundary3EZ0C3tbP2JpAmz4
Content-Disposition: form-data; name="myfile"; filename="ivr.png"
Content-Type: image/png
PNG
... [binary stuff]
------WebKitFormBoundary3EZ0C3tbP2JpAmz4--
What I need is to parse this message in java 8.
so that I can access the individual parts like
1. form data
2 file content
I have tried fileupload, Apache Multipart those didn't workout
Any sols will be helpful.
amazon-web-services java-8 aws-lambda aws-api-gateway
edited Nov 23 '18 at 9:05
John Rotenstein
68k775119
asked Nov 23 '18 at 8:35
Ak S
515
I am trying to implement a Lambda function that receives a POST request containing data encoded as multipart/form-data. The message is received through the API Gateway using Lambda Proxy integration and the body is encoded in Base64 when it arrives to the Lambda function. After decoding it manually, I see it contains a multipart body like the following:
-----WebKitFormBoundary3EZ0C3tbP2JpAmz4
Content-Disposition: form-data; name="param1"
value1
-----WebKitFormBoundary3EZ0C3tbP2JpAmz4
Content-Disposition: form-data; name="param2"
value2
------WebKitFormBoundary3EZ0C3tbP2JpAmz4
Content-Disposition: form-data; name="myfile"; filename="ivr.png"
Content-Type: image/png
PNG
... [binary stuff]
------WebKitFormBoundary3EZ0C3tbP2JpAmz4--
What I need is to parse this message in java 8.
so that I can access the individual parts like
1. form data
2 file content
I have tried fileupload, Apache Multipart those didn't workout
Any sols will be helpful.
amazon-web-services java-8 aws-lambda aws-api-gateway
amazon-web-services java-8 aws-lambda aws-api-gateway
edited Nov 23 '18 at 9:05
John Rotenstein
68k775119
asked Nov 23 '18 at 8:35
Ak S
515
edited Nov 23 '18 at 9:05
John Rotenstein
68k775119
asked Nov 23 '18 at 8:35
Ak S
515
edited Nov 23 '18 at 9:05
John Rotenstein
68k775119
edited Nov 23 '18 at 9:05
John Rotenstein
68k775119
edited Nov 23 '18 at 9:05
John Rotenstein
68k775119
68k775119
asked Nov 23 '18 at 8:35
Ak S
515
asked Nov 23 '18 at 8:35
Ak S
515
asked Nov 23 '18 at 8:35
Ak S
515
515
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
I ran into a similar issue with my application. I used and modified a custom form-data parser here: https://apimeister.com/2015/10/10/formdatahandler-implements-com-sun-net-httpserver-httphandler.html
I got it to parse properly however, the binary data came in malformed similar to this issue here: https://github.com/dherault/serverless-offline/issues/230
How did you get the entire AWS Lambda body to encode to base64? Can you post instructions to do so? That may fix the malformed data issue I am running into.
answered Dec 4 '18 at 22:30
Nick
462
i have specified as multipart/form-data in mapping template at Lambda Proxy integration Request in API Gateway, It directly convert your body data to base64 format.
– Ak S
Dec 5 '18 at 9:06
Ah nice, I'll look into it. Let me know if you need help implementing that form-data parser. It pretty much depends on how you setup your RequestHandler for your Lambda function, you can modify it pretty easily to get it to work. I'll let you know what I come up with base64 the entire body.
– Nick
Dec 5 '18 at 19:51
thats great. Let me know once your are done with changes.... thanks
– Ak S
Dec 6 '18 at 8:04
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
I ran into a similar issue with my application. I used and modified a custom form-data parser here: https://apimeister.com/2015/10/10/formdatahandler-implements-com-sun-net-httpserver-httphandler.html
I got it to parse properly however, the binary data came in malformed similar to this issue here: https://github.com/dherault/serverless-offline/issues/230
How did you get the entire AWS Lambda body to encode to base64? Can you post instructions to do so? That may fix the malformed data issue I am running into.
answered Dec 4 '18 at 22:30
Nick
462
i have specified as multipart/form-data in mapping template at Lambda Proxy integration Request in API Gateway, It directly convert your body data to base64 format.
– Ak S
Dec 5 '18 at 9:06
Ah nice, I'll look into it. Let me know if you need help implementing that form-data parser. It pretty much depends on how you setup your RequestHandler for your Lambda function, you can modify it pretty easily to get it to work. I'll let you know what I come up with base64 the entire body.
– Nick
Dec 5 '18 at 19:51
thats great. Let me know once your are done with changes.... thanks
– Ak S
Dec 6 '18 at 8:04
add a comment |
I ran into a similar issue with my application. I used and modified a custom form-data parser here: https://apimeister.com/2015/10/10/formdatahandler-implements-com-sun-net-httpserver-httphandler.html
I got it to parse properly however, the binary data came in malformed similar to this issue here: https://github.com/dherault/serverless-offline/issues/230
How did you get the entire AWS Lambda body to encode to base64? Can you post instructions to do so? That may fix the malformed data issue I am running into.
answered Dec 4 '18 at 22:30
Nick
462
i have specified as multipart/form-data in mapping template at Lambda Proxy integration Request in API Gateway, It directly convert your body data to base64 format.
– Ak S
Dec 5 '18 at 9:06
Ah nice, I'll look into it. Let me know if you need help implementing that form-data parser. It pretty much depends on how you setup your RequestHandler for your Lambda function, you can modify it pretty easily to get it to work. I'll let you know what I come up with base64 the entire body.
– Nick
Dec 5 '18 at 19:51
thats great. Let me know once your are done with changes.... thanks
– Ak S
Dec 6 '18 at 8:04
add a comment |
I ran into a similar issue with my application. I used and modified a custom form-data parser here: https://apimeister.com/2015/10/10/formdatahandler-implements-com-sun-net-httpserver-httphandler.html
I got it to parse properly however, the binary data came in malformed similar to this issue here: https://github.com/dherault/serverless-offline/issues/230
How did you get the entire AWS Lambda body to encode to base64? Can you post instructions to do so? That may fix the malformed data issue I am running into.
answered Dec 4 '18 at 22:30
Nick
462
I ran into a similar issue with my application. I used and modified a custom form-data parser here: https://apimeister.com/2015/10/10/formdatahandler-implements-com-sun-net-httpserver-httphandler.html
I got it to parse properly however, the binary data came in malformed similar to this issue here: https://github.com/dherault/serverless-offline/issues/230
How did you get the entire AWS Lambda body to encode to base64? Can you post instructions to do so? That may fix the malformed data issue I am running into.
answered Dec 4 '18 at 22:30
Nick
462
answered Dec 4 '18 at 22:30
Nick
462
answered Dec 4 '18 at 22:30
Nick
462
answered Dec 4 '18 at 22:30
Nick
462
462
i have specified as multipart/form-data in mapping template at Lambda Proxy integration Request in API Gateway, It directly convert your body data to base64 format.
– Ak S
Dec 5 '18 at 9:06
Ah nice, I'll look into it. Let me know if you need help implementing that form-data parser. It pretty much depends on how you setup your RequestHandler for your Lambda function, you can modify it pretty easily to get it to work. I'll let you know what I come up with base64 the entire body.
– Nick
Dec 5 '18 at 19:51
thats great. Let me know once your are done with changes.... thanks
– Ak S
Dec 6 '18 at 8:04
add a comment |
i have specified as multipart/form-data in mapping template at Lambda Proxy integration Request in API Gateway, It directly convert your body data to base64 format.
– Ak S
Dec 5 '18 at 9:06
Ah nice, I'll look into it. Let me know if you need help implementing that form-data parser. It pretty much depends on how you setup your RequestHandler for your Lambda function, you can modify it pretty easily to get it to work. I'll let you know what I come up with base64 the entire body.
– Nick
Dec 5 '18 at 19:51
thats great. Let me know once your are done with changes.... thanks
– Ak S
Dec 6 '18 at 8:04
i have specified as multipart/form-data in mapping template at Lambda Proxy integration Request in API Gateway, It directly convert your body data to base64 format.
– Ak S
Dec 5 '18 at 9:06
i have specified as multipart/form-data in mapping template at Lambda Proxy integration Request in API Gateway, It directly convert your body data to base64 format.
– Ak S
Dec 5 '18 at 9:06
Ah nice, I'll look into it. Let me know if you need help implementing that form-data parser. It pretty much depends on how you setup your RequestHandler for your Lambda function, you can modify it pretty easily to get it to work. I'll let you know what I come up with base64 the entire body.
– Nick
Dec 5 '18 at 19:51
Ah nice, I'll look into it. Let me know if you need help implementing that form-data parser. It pretty much depends on how you setup your RequestHandler for your Lambda function, you can modify it pretty easily to get it to work. I'll let you know what I come up with base64 the entire body.
– Nick
Dec 5 '18 at 19:51
thats great. Let me know once your are done with changes.... thanks
– Ak S
Dec 6 '18 at 8:04
thats great. Let me know once your are done with changes.... thanks
– Ak S
Dec 6 '18 at 8:04
add a comment |
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