Lex import is not working

[dppalukuri]

Hi All,

I'm trying to import a Lex bot from another existing bot using boto3 and I have successfully exported the original bot.
However, I'm unable to import it.
The documentation says :
-> Get presigned upload url : link
-> Use the importId from the above response to call start_import

I did the same, but I'm getting the below error in step 2:
SignatureDoesNotMatch : The request signature we calculated does not match the signature you provided. Check your key and signing method.

I'm not sure what I'm doing wrong. Any help is highly appreciated.

Here is the code snippet

lex_client = boto3.client('lexv2-models',
region_name=region,
aws_access_key_id=ACCESS_KEY,
aws_secret_access_key=SECRET_KEY)

upload_url_response = lex_client.create_upload_url()

with open(file_name, 'rb') as f:
files = {'file': (file_name, f)}
http_response = requests.post(upload_url_response ['uploadUrl'], files=files)

Gives 403 error as mentioned above

===========================================================

Here is the full error:

===========================================================
{
'_content': b'\nSignatureDoesNotMatchThe request signature we calculated does not match the signature you provided. Check your key and signing method.ASIAR4QTM4IB4PZL22FNAWS4-HMAC-SHA256\n20221017T150249Z\n20221017/eu-west-1/s3/aws4_request\n26ae7836777fdfd94df563c05f2d031fdc1ecfe975de2406cadc02ef9961a604eb995ab34b21a4d0093b91b9beed5b6405e4f466fade1d9a781751510ff1ad0141 57 53 34 2d 48 4d 41 43 2d 53 48 41 32 35 36 0a 32 30 32 32 31 30 31 37 54 31 35 30 32 34 39 5a 0a 32 30 32 32 31 30 31 37 2f 65 75 2d 77 65 73 74 2d 31 2f 73 33 2f 61 77 73 34 5f 72 65 71 75 65 73 74 0a 32 36 61 65 37 38 33 36 37 37 37 66 64 66 64 39 34 64 66 35 36 33 63 30 35 66 32 64 30 33 31 66 64 63 31 65 63 66 65 39 37 35 64 65 32 34 30 36 63 61 64 63 30 32 65 66 39 39 36 31 61 36 30 34POST\n/2HIVTQI3UG.zip\nX-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=ASIAR4QTM4IB4PZL22FN%2F20221017%2Feu-west-1%2Fs3%2Faws4_request&X-Amz-Date=20221017T150249Z&X-Amz-Expires=300&X-Amz-Security-Token=IQoJb3JpZ2luX2VjED8aCWV1LXdlc3QtMSJIMEYCIQDYxhY9MRJosxZssZrHBaA99bN0S6aMpkkAf4daZMFpcgIhAPLIbdJBobT6hnA0ZjSg7r%2BfWBURbub0gsrfjJZ5j9ZmKqMDCBgQAhoMMTI5OTYzNDUwODgzIgzZGcVwtORxNgfOSMoqgAOl7Mmm1H%2FjKM%2B8xPi29SmFx6X0AVh%2FhLtz3Xtie%2BePtjUQISAQWJwAJjUFMyw1NdYPYYQqXlxhW5Gy3ACxKibhCHv49mkD2QajiOYyHDqub4Xc5xdMYSFCP3HAoVj0mJ%2FRPLhqI%2F3JKdOcfc2yzwrAIGuDU3ypCg7d86AY6DeJ7k1PQ53LlTN77JxokN84tzVwPJkRkbliJGetRem6ng9f36eao0GGSzi1WYkXekUZIOtDdccryfwyaDvPRGYbFJCr2tlr1hx7uCPUK2ZGegG6h%2BU5zUtKpcB10srk8CfFhruaEN3RY%2BpaPQ1BcPmUlu%2B%2B6bXJGq4%2BaRZipfr4E%2FkMLXH9FApbMKH14SYMubl5yzgRUsTaZM0jfZtHOa3eEqsjXsUy6uJT3QKQB1MFz%2FTAm1lx4HQXFObAmsNeufBNECjh0xaFF4lq8yzcD80B7nmp4bLyLedMqGp3x3GSNvNe6hJCg96K7oEUucRbwrQage0Jaq38EUonm%2B7uAnQW4hIwsNa1mgY6nAEvOFyWbo%2BR0HAz1Zp%2BCDKRum0MY7kJdT3nDVIKo%2Fo%2FljFsfA0HDO28JbDbiccmAOpejt3W3uRN3af0LNss1BK9MaCX8z9d2Ba0SpakmxMI%2FuBupZYp9xsiYTQAV8kxNzuDEaTcESJh8sSJ5ZyGWBo0dKjc0CGNO6kq3wu5usPSpIhrHMCWsP3T50J4Zz0wBm4p9q%2BDWaN%2Bka1Tsos%3D&X-Amz-SignedHeaders=host\nhost:lex-imports-eu-west-1-prod.s3.eu-west-1.amazonaws.com\n\nhost\nUNSIGNED-PAYLOAD50 4f 53 54 0a 2f 32 48 49 56 54 51 49 33 55 47 2e 7a 69 70 0a 58 2d 41 6d 7a 2d 41 6c 67 6f 72 69 74 68 6d 3d 41 57 53 34 2d 48 4d 41 43 2d 53 48 41 32 35 36 26 58 2d 41 6d 7a 2d 43 72 65 64 65 6e 74 69 61 6c 3d 41 53 49 41 52 34 51 54 4d 34 49 42 34 50 5a 4c 32 32 46 4e 25 32 46 32 30 32 32 31 30 31 37 25 32 46 65 75 2d 77 65 73 74 2d 31 25 32 46 73 33 25 32 46 61 77 73 34 5f 72 65 71 75 65 73 74 26 58 2d 41 6d 7a 2d 44 61 74 65 3d 32 30 32 32 31 30 31 37 54 31 35 30 32 34 39 5a 26 58 2d 41 6d 7a 2d 45 78 70 69 72 65 73 3d 33 30 30 26 58 2d 41 6d 7a 2d 53 65 63 75 72 69 74 79 2d 54 6f 6b 65 6e 3d 49 51 6f 4a 62 33 4a 70 5a 32 6c 75 58 32 56 6a 45 44 38 61 43 57 56 31 4c 58 64 6c 63 33 51 74 4d 53 4a 49 4d 45 59 43 49 51 44 59 78 68 59 39 4d 52 4a 6f 73 78 5a 73 73 5a 72 48 42 61 41 39 39 62 4e 30 53 36 61 4d 70 6b 6b 41 66 34 64 61 5a 4d 46 70 63 67 49 68 41 50 4c 49 62 64 4a 42 6f 62 54 36 68 6e 41 30 5a 6a 53 67 37 72 25 32 42 66 57 42 55 52 62 75 62 30 67 73 72 66 6a 4a 5a 35 6a 39 5a 6d 4b 71 4d 44 43 42 67 51 41 68 6f 4d 4d 54 49 35 4f 54 59 7a 4e 44 55 77 4f 44 67 7a 49 67 7a 5a 47 63 56 77 74 4f 52 78 4e 67 66 4f 53 4d 6f 71 67 41 4f 6c 37 4d 6d 6d 31 48 25 32 46 6a 4b 4d 25 32 42 38 78 50 69 32 39 53 6d 46 78 36 58 30 41 56 68 25 32 46 68 4c 74 7a 33 58 74 69 65 25 32 42 65 50 74 6a 55 51 49 53 41 51 57 4a 77 41 4a 6a 55 46 4d 79 77 31 4e 64 59 50 59 59 51 71 58 6c 78 68 57 35 47 79 33 41 43 78 4b 69 62 68 43 48 76 34 39 6d 6b 44 32 51 61 6a 69 4f 59 79 48 44 71 75 62 34 58 63 35 78 64 4d 59 53 46 43 50 33 48 41 6f 56 6a 30 6d 4a 25 32 46 52 50 4c 68 71 49 25 32 46 33 4a 4b 64 4f 63 66 63 32 79 7a 77 72 41 49 47 75 44 55 33 79 70 43 67 37 64 38 36 41 59 36 44 65 4a 37 6b 31 50 51 35 33 4c 6c 54 4e 37 37 4a 78 6f 6b 4e 38 34 74 7a 56 77 50 4a 6b 52 6b 62 6c 69 4a 47 65 74 52 65 6d 36 6e 67 39 66 33 36 65 61 6f 30 47 47 53 7a 69 31 57 59 6b 58 65 6b 55 5a 49 4f 74 44 64 63 63 72 79 66 77 79 61 44 76 50 52 47 59 62 46 4a 43 72 32 74 6c 72 31 68 78 37 75 43 50 55 4b 32 5a 47 65 67 47 36 68 25 32 42 55 35 7a 55 74 4b 70 63 42 31 30 73 72 6b 38 43 66 46 68 72 75 61 45 4e 33 52 59 25 32 42 70 61 50 51 31 42 63 50 6d 55 6c 75 25 32 42 25 32 42 36 62 58 4a 47 71 34 25 32 42 61 52 5a 69 70 66 72 34 45 25 32 46 6b 4d 4c 58 48 39 46 41 70 62 4d 4b 48 31 34 53 59 4d 75 62 6c 35 79 7a 67 52 55 73 54 61 5a 4d 30 6a 66 5a 74 48 4f 61 33 65 45 71 73 6a 58 73 55 79 36 75 4a 54 33 51 4b 51 42 31 4d 46 7a 25 32 46 54 41 6d 31 6c 78 34 48 51 58 46 4f 62 41 6d 73 4e 65 75 66 42 4e 45 43 6a 68 30 78 61 46 46 34 6c 71 38 79 7a 63 44 38 30 42 37 6e 6d 70 34 62 4c 79 4c 65 64 4d 71 47 70 33 78 33 47 53 4e 76 4e 65 36 68 4a 43 67 39 36 4b 37 6f 45 55 75 63 52 62 77 72 51 61 67 65 30 4a 61 71 33 38 45 55 6f 6e 6d 25 32 42 37 75 41 6e 51 57 34 68 49 77 73 4e 61 31 6d 67 59 36 6e 41 45 76 4f 46 79 57 62 6f 25 32 42 52 30 48 41 7a 31 5a 70 25 32 42 43 44 4b 52 75 6d 30 4d 59 37 6b 4a 64 54 33 6e 44 56 49 4b 6f 25 32 46 6f 25 32 46 6c 6a 46 73 66 41 30 48 44 4f 32 38 4a 62 44 62 69 63 63 6d 41 4f 70 65 6a 74 33 57 33 75 52 4e 33 61 66 30 4c 4e 73 73 31 42 4b 39 4d 61 43 58 38 7a 39 64 32 42 61 30 53 70 61 6b 6d 78 4d 49 25 32 46 75 42 75 70 5a 59 70 39 78 73 69 59 54 51 41 56 38 6b 78 4e 7a 75 44 45 61 54 63 45 53 4a 68 38 73 53 4a 35 5a 79 47 57 42 6f 30 64 4b 6a 63 30 43 47 4e 4f 36 6b 71 33 77 75 35 75 73 50 53 70 49 68 72 48 4d 43 57 73 50 33 54 35 30 4a 34 5a 7a 30 77 42 6d 34 70 39 71 25 32 42 44 57 61 4e 25 32 42 6b 61 31 54 73 6f 73 25 33 44 26 58 2d 41 6d 7a 2d 53 69 67 6e 65 64 48 65 61 64 65 72 73 3d 68 6f 73 74 0a 68 6f 73 74 3a 6c 65 78 2d 69 6d 70 6f 72 74 73 2d 65 75 2d 77 65 73 74 2d 31 2d 70 72 6f 64 2e 73 33 2e 65 75 2d 77 65 73 74 2d 31 2e 61 6d 61 7a 6f 6e 61 77 73 2e 63 6f 6d 0a 0a 68 6f 73 74 0a 55 4e 53 49 47 4e 45 44 2d 50 41 59 4c 4f 41 440JDAPJJAAR5VWGAY6JikiRBfLc/uue+3z8PT2KL5lsh9mE5rUAvuzvjlWvE0Nx9dxAvMhaNgGI66aVn/Xk1o1JUzB6I=',
'_content_consumed': True,
'_next': None,
'status_code': 403,
'headers': {
'x-amz-request-id': '0JDAPJJAAR5VWGAY',
'x-amz-id-2': '6JikiRBfLc/uue+3z8PT2KL5lsh9mE5rUAvuzvjlWvE0Nx9dxAvMhaNgGI66aVn/Xk1o1JUzB6I=',
'Content-Type': 'application/xml',
'Transfer-Encoding': 'chunked',
'Date': 'Mon, 17 Oct 2022 15:02:53 GMT',
'Server': 'AmazonS3',
'Connection': 'close'
},
'raw': <urllib3.response.HTTPResponseobjectat0x000001B624F08F10>,
'url': 'https://lex-imports-eu-west-1-prod.s3.eu-west-1.amazonaws.com/2HIVTQI3UG.zip?X-Amz-Security-Token=IQoJb3JpZ2luX2VjED8aCWV1LXdlc3QtMSJIMEYCIQDYxhY9MRJosxZssZrHBaA99bN0S6aMpkkAf4daZMFpcgIhAPLIbdJBobT6hnA0ZjSg7r%2BfWBURbub0gsrfjJZ5j9ZmKqMDCBgQAhoMMTI5OTYzNDUwODgzIgzZGcVwtORxNgfOSMoqgAOl7Mmm1H%2FjKM%2B8xPi29SmFx6X0AVh%2FhLtz3Xtie%2BePtjUQISAQWJwAJjUFMyw1NdYPYYQqXlxhW5Gy3ACxKibhCHv49mkD2QajiOYyHDqub4Xc5xdMYSFCP3HAoVj0mJ%2FRPLhqI%2F3JKdOcfc2yzwrAIGuDU3ypCg7d86AY6DeJ7k1PQ53LlTN77JxokN84tzVwPJkRkbliJGetRem6ng9f36eao0GGSzi1WYkXekUZIOtDdccryfwyaDvPRGYbFJCr2tlr1hx7uCPUK2ZGegG6h%2BU5zUtKpcB10srk8CfFhruaEN3RY%2BpaPQ1BcPmUlu%2B%2B6bXJGq4%2BaRZipfr4E%2FkMLXH9FApbMKH14SYMubl5yzgRUsTaZM0jfZtHOa3eEqsjXsUy6uJT3QKQB1MFz%2FTAm1lx4HQXFObAmsNeufBNECjh0xaFF4lq8yzcD80B7nmp4bLyLedMqGp3x3GSNvNe6hJCg96K7oEUucRbwrQage0Jaq38EUonm%2B7uAnQW4hIwsNa1mgY6nAEvOFyWbo%2BR0HAz1Zp%2BCDKRum0MY7kJdT3nDVIKo%2Fo%2FljFsfA0HDO28JbDbiccmAOpejt3W3uRN3af0LNss1BK9MaCX8z9d2Ba0SpakmxMI%2FuBupZYp9xsiYTQAV8kxNzuDEaTcESJh8sSJ5ZyGWBo0dKjc0CGNO6kq3wu5usPSpIhrHMCWsP3T50J4Zz0wBm4p9q%2BDWaN%2Bka1Tsos%3D&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Date=20221017T150249Z&X-Amz-SignedHeaders=host&X-Amz-Expires=300&X-Amz-Credential=ASIAR4QTM4IB4PZL22FN%2F20221017%2Feu-west-1%2Fs3%2Faws4_request&X-Amz-Signature=eb995ab34b21a4d0093b91b9beed5b6405e4f466fade1d9a781751510ff1ad01',
'encoding': None,
'history': [

],
'reason': 'Forbidden',
'cookies': <RequestsCookieJar[

]>,
'elapsed': datetime.timedelta(microseconds=989370),
'request': <PreparedRequest[
POST
]>,
'connection': <requests.adapters.HTTPAdapterobjectat0x000001B624EE4BE0>
}`

===========================================================

[RyanFitzSimmonsAK]

Hi @dppalukuri, thanks for reaching out. I was able to reproduce this and confirm that the workaround described in this issue still works.

Including the endpoint_url in your client should solve your problem.

lex_client = boto3.client('lexv2-models',
region_name='eu-west-1',
endpoint_url = 'https://s3.eu-west-1.amazonaws.com',
aws_access_key_id=ACCESS_KEY,
aws_secret_access_key=SECRET_KEY)

Please let us know if this works or if you have any other questions.

[dppalukuri]

Hi @RyanFitzSimmonsAK
Thanks for your quick reply.

After adding the endpoint_url, I am getting error in step 1 i.e., while creating the upload url.

Here is the updated code :

lex_client = boto3.client('lexv2-models',
region_name=DEFAULT_REGION,
endpoint_url='https://s3.eu-west-1.amazonaws.com',
aws_access_key_id=ACCESS_KEY,
aws_secret_access_key=SECRET_KEY)
response = lex_client.create_upload_url()

and here is the error I'm getting now

botocore.exceptions.ClientError: An error occurred (412) when calling the CreateUploadUrl operation:

<Error><Code>PreconditionFailed</Code><Message>At least one of the pre-conditions you specified did not hold</Message><Condition>Bucket POST must be of the enclosure-type multipart/form-data</Condition><RequestId>RV8EY74WQCBRWZW2</RequestId><HostId>nyYVZziQsb9UBAYqy2Qq+u7bdQ6YDoTolsUK/sZT84HOq1naINx4eUUkiBhqzda0y1UGGxiHTXQ=</HostId></Error>

I tried whatever I found on the internet for this error, but I might be missing something.

[RyanFitzSimmonsAK]

Hi @dppalukuri. Could you please verify that your access credentials are valid by trying to use them with any other service?

[dppalukuri]

Hi @RyanFitzSimmonsAK Yes, the credentials are valid. I was able to export an existing bot using the same credentials.

[RyanFitzSimmonsAK]

We've gone ahead and reached out to the service api team with this issue, thanks for reporting this. Please follow up on the aws-sdk issue linked in the issue you created.