z3950 and Library of Congress output

[ak19]

Library of Congress' Z39.50 and SRU (SRW) server is returning SRU data as per Dr Bainbridge. The matter is complicated because Yaz, which is the tool that GS uses to download data over z39.50, works with both protocols in the same fashion. And we're not sure how to tell Yaz what specific protocol we want to use to connect.

Both the old and new connection points at the LoC give the same XML result, we doesn't expect XML returned for Z39.50 requests (neither does the GS perl code expect it):

OLD:

Host: ​http://z3950.loc.gov

Port: 7090

Database: voyager

Find: computer

Max Records: 1

NEW:

Host: ​http://lx2.loc.gov

Port: 210

Database: LCDB_MARC8

Find: computer

Max Records: 1

Where "Find" takes the search term(s).

Try using Yaz included with GS as follows to execute the same query from the command line instead of GLI's Z39.50 download pane:

1. > source setup.bash

2. > yaz-client

3. > open ​http://lx2.loc.gov:210

base LCDB

(Can combine as: > open ​http://lx2.loc.gov:210/LCDB)

When it returns with the response "Opening Connection...OK." proceed with:

4. > find computer

show 1+1

(> quit)