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This method allow to automate the Postman test, by the execution of the collection file, using a tool provided by Postman (command line integration with newman)
More info on how to deploy it in your workspace and how to run it, here: installing running newman
As the collection is executed locally, the following scripts can be used to download the collection and environment from Postman web, generate the jwt assertion, update the environment with the jwt-assertion and then executing newman to run the test on the collection:
Generating the jwt-assertion and executing the newman script:
#!/bin/bash
PRIVATE_KEY_ES256=$2
CLIENT_ID=$1
ISSUER="https://logindev.wipo.int/am/oauth2"
# https://logindev.wipo.int/am/oauth2/.well-known/openid-configuration
OIDC_CONFIG_JSON=$(curl -k "${ISSUER}/.well-known/openid-configuration")
# Generic way to obtain the token endpoint
TOKEN_ENDPOINT=$(printf '%s' ${OIDC_CONFIG_JSON} | jq -r ".token_endpoint")
echo $TOKEN_ENDPOINT
UTC_TIME=$(date -u +%s)
EXP_TIME=$(expr "$UTC_TIME" + 1000)
JSON='{'
JSON=${JSON}$(printf '"iss":"%s"' ${CLIENT_ID})
JSON=${JSON}$(printf ',"sub":"%s"' ${CLIENT_ID})
JSON=${JSON}$(printf ',"aud":"%s"' ${TOKEN_ENDPOINT})
JSON=${JSON}$(printf ',"exp":%s' ${EXP_TIME})
JSON=${JSON}'}'
JSON_HEADER_B64=$(printf '{"alg":"ES256","typ":"JWT"}' | jq . -cj | base64 -w0 | tr -d '\n=' | tr '+/' '-_')
# echo $JSON_HEADER_B64
JSON_PAYLOAD_B64=$(printf $JSON | jq . -cj | base64 -w0 | tr -d '\n=' | tr '+/' '-_')
JSON_SIGNATURE_ASN1_B64=$(printf '%s.%s' $JSON_HEADER_B64 $JSON_PAYLOAD_B64 | openssl dgst -sha256 -sign "${PRIVATE_KEY_ES256}" | openssl asn1parse -inform DER | base64 -w0)
JSON_SIGNATURE_HEX=$(printf $JSON_SIGNATURE_ASN1_B64 | base64 -d | sed -n '/INTEGER/p' | sed 's/.*INTEGER\s*://g' | sed -z 's/[^0-9A-F]//g')
JSON_SIGNATURE_B64=$(printf $JSON_SIGNATURE_HEX | xxd -p -r | base64 -w0 | tr -d '\n=' | tr '+/' '-_')
JWT_ASSERTION=$(printf '%s.%s.%s' $JSON_HEADER_B64 $JSON_PAYLOAD_B64 $JSON_SIGNATURE_B64)
echo
echo $JWT_ASSERTION
sed 's/\"key\"\:\"client\-assertion\"\,\"value\"\:\"[^"]*\"/\"key\"\:\"client\-assertion\"\,\"value\"\:\"'${JWT_ASSERTION}'\"/g' config/environment.json > ./config/updated_environment.json
sed 's/\"src\"\:\"\/home\/berlicki\/Github\/workspaceAngular\/das_initial\/api-test\/US17088314A1\.zip\"\}\}/\"src\"\:\".\/config\/US17088314A1.zip\"}}/g' config/collection.json > ./config/updated_collection.json
echo "going to execute Newman now with the new values"
#set HTTP_PROXY=127.0.0.1:443
newman run ./config/updated_collection.json --folder "1.1.0.0.- Registration of a priority document" -e ./config/updated_environment.json --insecure --verbose
#docker run --network host -v ${PWD}/config:/etc/newman -t postman/newman run /etc/newman/collection.json --folder "1.1.1.0.- getToken" -e /etc/newman/updated_environment.json --insecure --verbose
Newman execution options:
If newman is installed, it can be executed directly as this:
newman run <<collection-file-location>> --folder "<<folder of the collection to execute>>" -e <<environment-file-location>> --insecure --verbose
