Hello,
I am getting below error when writing above expressions in HTTP Entity:
failure:
“HTTP Entity: Cannot lookup a property on a null value”
value:
“Please check expression syntax and data types.”
reason:
“Please check expression syntax and data types.”
I have created a REST POST basic auth account with username and password.
Do you have any suggestion?
Thanks,
Aditya
Also, if I take the raw BASE64 data from Salesforce and decode it with “base64 -d” it decodes just fine, like the bottom branch decodes it just fine (twice).
Can you give a little more information on the configuration of the “REST GET_FILE” snap? Is it a REST Get snap with the response type set to BINARY? Or, is the response type set to TEXT and $entity is a string?
Hi Tim,
The REST GET is setup with response type BINARY which puts the BASE64 encoded data into the entity field with a “_snaptype_binary_base64”, which I can’t decode directly with the Base64.decodeAsBinary($entity) function.
However, if I BASE64 decode it with the Document-To-Binary snap and then re-BASE64 encode it with the Binary-To-Document snap, I end up with the same BASE64 data in a content field, without any “_snaptype_binary_base64”, which then decodes fine with the Base64.decodeAsBinary($content) function.
Sorry, for the confusion, but I think the data is already binary (a byte array internally). The “_snaptype_binary_base64” is how the byte array is stored as JSON for preview. Have you tried just using $entity in the REST POST snap?
Hmm… I wonder how the DECODE BASE64 on the lower branch works then?
I’ll mess with it more.
It might not be doing anything at all since it’s already a byte array.
Hi @christwr , I believe that the base64 encode-decode inbuilt functions has some limitations and the encoding-decoding doesnt support all characters.
In the second approach i guess the data is not being transferred as it is supposed to be even though its working (please verify it).
my suggestion: use a script snap with python code for base64 encoding and decoding functionality.
Thanks.
What limitations have you found there to be? The functions were failing in this case because they were being passed raw binary data and not base64-encoded strings.
