Receive blob type from External System

RE: Receive blob type from External System

Reetish Pattnayak — Tue, 13 Oct 2020 09:31:40 GMT

Thanks Ricky. This is a limitation as per the documentation.

I have already tested the other approach as suggested in the the second link.

External system is/planning to store documents/images as blob . May be we need to change the design approach.

Thanks a lot.

RE: Receive blob type from External System

rickyc0004 — Tue, 13 Oct 2020 08:34:20 GMT

I don't think Appian support BLOB data type to be mapped with CDT field because it can contain huge data.

you can find this limitation documented here. https://docs.appian.com/suite/help/20.3/Mapping_CDTs_to_Pre-defined_Database_Tables.html

I would suggest you to have a look at https://docs.appian.com/suite/help/20.3/passing-a-web-api-document-into-a-process-model.html where you can upload a document directly in Appian using web API.

RE: Receive blob type from External System

Reetish Pattnayak — Tue, 13 Oct 2020 08:18:09 GMT

It asks document as one of its input. So I wont be able to use it for my requirement.

I am using CDT to store the blob type data which I am receiving from external source into Appian DB and then I am trying to convert it into document/image.

Underline xsd as below:

<xsd:element name="DOCUMENT" nillable="true" type="xsd:string">
<xsd:annotation>
<xsd:appinfo source="appian.jpa">@Column(name="blobAPP", columnDefinition="BLOB")</xsd:appinfo>
</xsd:annotation>
</xsd:element>
<xsd:element name="DOCUMENT_MEDIUM" nillable="true" type="xsd:string">
<xsd:annotation>
<xsd:appinfo source="appian.jpa">@Column(name="mediumBlobAPP", columnDefinition="MEDIUMBLOB")</xsd:appinfo>
</xsd:annotation>
</xsd:element>

I am not sure if this is correct way to define CDT for blob type.

RE: Receive blob type from External System

rickyc0004 — Tue, 13 Oct 2020 07:42:16 GMT

Hi Reetish,

Did you try "Send File to RDBMS Blob" instead of Write to data store entity.

More details here.

https://community.appian.com/b/appmarket/posts/rdbms-blob-utility

Thank you,

Ricky Chaware