zowe/zowe-cli#690

test.rexx

/* REXX */
SAY '{'
SAY ' "anArray": '
SAY '   ['
DO i = 0 TO 9999 BY 1
    SAY '    {'
    SAY '       "element'i'": "value'i'" '
    IF (i+1 < 10000) THEN
        DO
            SAY '    },'
        END
    ELSE
        DO
            SAY '    }'
        END
END
SAY '   ]'
SAY '}'

test.sh

#!/bin/bash
set -ex

CURL_ARGS="--insecure"
PY3=python
TSO_CMD="exec 'XXX.PUBLIC.REXX(JSONTEST)'"
TSO_PARMS="proc=IZUFPROC&chset=697&cpage=1047&rows=24&cols=80&acct=IZUACCT&rsize=4096"
ZOSMF_HOST=example.com
ZOSMF_PORT=443
ZOSMF_USER=XXX  # Change me

# Clean up files from previous run
rm out.json response*.json || true

# Get LTPA token from z/OSMF
curl $CURL_ARGS -X POST --user $ZOSMF_USER --cookie-jar cookies.txt \
    "https://${ZOSMF_HOST}:${ZOSMF_PORT}/zosmf/services/authenticate" \
    -H 'Content-Type: application/x-www-form-urlencoded' \
    -H 'X-CSRF-ZOSMF-HEADER;'

# Start TSO session
curl $CURL_ARGS -X POST -b cookies.txt \
    "https://${ZOSMF_HOST}:${ZOSMF_PORT}/zosmf/tsoApp/tso?${TSO_PARMS}" \
    -H 'Content-Type: application/json' \
    -H 'X-CSRF-ZOSMF-HEADER;' > initial.txt

# Obtain servlet key for TSO session
servletKey=$(cat initial.txt | $PY3 -c "import json, sys; print(json.loads(sys.stdin.read())['servletKey'])")
echo "servletKey=${servletKey}"

# Python script that extracts TSO data
pyParseScript="import json, sys
with open(sys.argv[1]) as json_file:
    data = json.load(json_file)
    for element in data['tsoData']:
        if 'TSO MESSAGE' in element:
            msg = element['TSO MESSAGE']
            theData = msg['DATA']
            if 'READY' not in theData:
                print(theData)"

# Execute TSO command
curl $CURL_ARGS -X PUT -b cookies.txt \
    "https://${ZOSMF_HOST}:${ZOSMF_PORT}/zosmf/tsoApp/tso/${servletKey}?readReply=true" \
    -H 'Content-Type: application/json' \
    -H 'X-CSRF-ZOSMF-HEADER;' \
    -d "{\"TSO RESPONSE\":{\"VERSION\":\"0100\",\"DATA\":\"${TSO_CMD}\"}}" > response0.json
$PY3 -c "$pyParseScript" response0.json >> out.json

# Retrieve output from TSO command
i=0
while : ; do
    ((i=i+1))
    curl $CURL_ARGS -X GET -b cookies.txt \
        "https://${ZOSMF_HOST}:${ZOSMF_PORT}/zosmf/tsoApp/tso/${servletKey}" \
        -H 'Content-Type: application/json' \
        -H 'X-CSRF-ZOSMF-HEADER;' > response$i.json
    if grep -q '"timeout":true' response$i.json; then break; fi
    $PY3 -c "$pyParseScript" response$i.json >> out.json
done

# Stop TSO session
curl $CURL_ARGS -X DELETE -b cookies.txt \
    "https://${ZOSMF_HOST}:${ZOSMF_PORT}/zosmf/tsoApp/tso/${servletKey}" \
    -H 'Content-Type: application/json' \
    -H 'X-CSRF-ZOSMF-HEADER;'

# Check that command output is valid JSON
$PY3 -m json.tool out.json > /dev/null