Send a PESC XML college transcript via the EdExchange network using the REST upload API

Steps

1. Register as a service provider at edexchange.pesc.org, complete onboarding to receive your service provider credentials, and add the sending institution to your logical group in the EdExchange directory.
2. Query the EdExchange directory API to resolve the receiving institution's endpoint: GET /api/v1/endpoints?institutionId=<receiver_id>&documentType=Transcript&format=PESCXML to retrieve the target endpoint URL and supported formats.
3. Build the PESC XML transcript document conforming to the PESC CollegeTranscript XML schema (v1.9 or later); validate locally against the published XSD before transmission.
4. Sign the document digitally if the receiving endpoint requires a signature; upload both the XML file and the signature file as parts in a multipart/form-data POST to the resolved endpoint URL.
5. In the POST body include the required metadata parameters (sender ID, receiver ID, document type, document format); the API returns a transaction ID on success.
6. Poll the EdExchange transaction status endpoint using the returned transaction ID to confirm delivery acknowledgment from the receiving institution.