use closure in request body #1596

Job	Run time
Build Keycloak / build	30s
Build Databox Indexer / build	1m 33s
Build Matomo NGINX / build	12s
Build Matomo PHP / build	22s
Build nginx-cache-purge / build	15s
Build nginx-fpm-base / build	21s
Build nodejs-base / build	42s
Build php-fpm-base / build	24s
Build Report API / build	21s
Build Configurator / build	35s
Build Notify API / build	56s
Build Expose API / build	1m 8s
Build Databox API / build	2m 24s
Build Uploader API / build	1m 25s
Build Expose Client / build	2m 21s
Build Uploader Client / build	1m 58s
Build Databox Client / build	2m 55s
Build Dashboard / build	1m 56s
Setup stack	13m 40s
	33m 58s

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