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Hints & Workflows

info
This documentation only applies to Snowplow Community Edition. See the feature comparison page for more information about the different Snowplow offerings.

Initial setup​

Most of the following workflows come from testing/working with elaborate bad row structures and configurations and rely heavily on the supplied scripting utility. To set it up locally follow scripting utility intro or starting with an empty ammonite script file (ie. test.sc), set up Snowplow's repository and dependencies:

interp.repositories() ++= Seq(coursierapi.MavenRepository.of("http://maven.snplow.com/releases/"))
@
import $url.{`https://raw.githubusercontent.com/snowplow-incubator/snowplow-event-recovery/feature/recovery-typeclasses/scripts/Recovery.sc` => Recovery}, Recovery._
import $ivy.`com.snowplowanalytics::snowplow-event-recovery-core:0.2.0-rc10`, com.snowplowanalytics.snowplow.event.recovery._, config._, json._

Exploring data structures​

The new bad row format is designed to be, readable and self-contained, however some fields are not captured in JSON schemas for bad row format.

The unspecified fields can vary from plain JSON types through JSON objects to inline JSON structures and even Base64-encoded.

To explore the data structures we are able to use the convenience scripts as described in Testing section.

Given we got a bad row JSON structure we can turn it into navigable JSON object that we can step through and encode/decode using for example:

val badrow = """{"schema":"iglu:com.snowplowanalytics.snowplow.badrows/enrichment_failures/jsonschema/1-0-0","data":{"processor":{"artifact":"beam-enrich","version":"1.0.0-rc5"},"failure":{"timestamp":"2020-02-17T09:28:18.100Z","messages":[{"enrichment":{"schemaKey":"iglu:com.snowplowanalytics.snowplow.enrichments/api_request_enrichment_config/jsonschema/1-0-0","identifier":"api-request"},"message":{"error":"Error accessing POJO input field [user]: [java.lang.NoSuchMethodException: com.snowplowanalytics.snowplow.enrich.common.outputs.EnrichedEvent.user_id-foo()]"}}]},"payload":{"enriched":{"app_id":"console","platform":"web","etl_tstamp":"2020-02-17 09:28:18.095","collector_tstamp":"2020-02-17 09:28:16.560","dvce_created_tstamp":"2020-02-17 09:28:16.114","event":"page_view","event_id":"2dfeb9b7-5a87-4214-8a97-a8b23176856b","txn_id":null,"name_tracker":"msc-gcp-stg1","v_tracker":"js-2.10.2","v_collector":"ssc-1.0.0-rc4-googlepubsub","v_etl":"beam-enrich-1.0.0-rc5-common-1.0.0","user_id":null,"user_ipaddress":"18.194.133.57","user_fingerprint":null,"domain_userid":"d6c468de-0aed-4785-9052-b6bb77b6dddb","domain_sessionidx":13,"network_userid":"510b2f05-27e3-4fd3-b449-a2702926da5e","geo_country":"DE","geo_region":"HE","geo_city":"Frankfurt am Main","geo_zipcode":"60313","geo_latitude":50.1188,"geo_longitude":8.6843,"geo_region_name":"Hesse","ip_isp":null,"ip_organization":null,"ip_domain":null,"ip_netspeed":null,"page_url":"https://console.snowplowanalytics.com/","page_title":"Snowplow BDP","page_referrer":null,"page_urlscheme":"https","page_urlhost":"console.snowplowanalytics.com","page_urlport":443,"page_urlpath":"/","page_urlquery":null,"page_urlfragment":null,"refr_urlscheme":null,"refr_urlhost":null,"refr_urlport":0,"refr_urlpath":null,"refr_urlquery":null,"refr_urlfragment":null,"refr_medium":null,"refr_source":null,"refr_term":null,"mkt_medium":null,"mkt_source":null,"mkt_term":null,"mkt_content":null,"mkt_campaign":null,"contexts":"{\"schema\":\"iglu:com.snowplowanalytics.snowplow/contexts/jsonschema/1-0-0\",\"data\":[{\"schema\":\"iglu:com.snowplowanalytics.snowplow/web_page/jsonschema/1-0-0\",\"data\":{\"id\":\"39a9934a-ddd3-4581-a4ea-d0ba20e63b92\"}},{\"schema\":\"iglu:org.w3/PerformanceTiming/jsonschema/1-0-0\",\"data\":{\"navigationStart\":1581931694397,\"unloadEventStart\":1581931696046,\"unloadEventEnd\":1581931694764,\"redirectStart\":0,\"redirectEnd\":0,\"fetchStart\":1581931694397,\"domainLookupStart\":1581931694440,\"domainLookupEnd\":1581931694513,\"connectStart\":1581931694513,\"connectEnd\":1581931694665,\"secureConnectionStart\":1581931694572,\"requestStart\":1581931694665,\"responseStart\":1581931694750,\"responseEnd\":1581931694750,\"domLoading\":1581931694762,\"domInteractive\":1581931695963,\"domContentLoadedEventStart\":1581931696039,\"domContentLoadedEventEnd\":1581931696039,\"domComplete\":0,\"loadEventStart\":0,\"loadEventEnd\":0}}]}","se_category":null,"se_action":null,"se_label":null,"se_property":null,"se_value":null,"unstruct_event":null,"tr_orderid":null,"tr_affiliation":null,"tr_total":null,"tr_tax":null,"tr_shipping":null,"tr_city":null,"tr_state":null,"tr_country":null,"ti_orderid":null,"ti_sku":null,"ti_name":null,"ti_category":null,"ti_price":null,"ti_quantity":0,"pp_xoffset_min":0,"pp_xoffset_max":0,"pp_yoffset_min":0,"pp_yoffset_max":0,"useragent":"Mozilla/5.0 (X11; Linux x86_64; rv:72.0) Gecko/20100101 Firefox/72.0","br_name":null,"br_family":null,"br_version":null,"br_type":null,"br_renderengine":null,"br_lang":"en-US","br_features_pdf":0,"br_features_flash":0,"br_features_java":0,"br_features_director":0,"br_features_quicktime":0,"br_features_realplayer":0,"br_features_windowsmedia":0,"br_features_gears":0,"br_features_silverlight":0,"br_cookies":1,"br_colordepth":"24","br_viewwidth":1918,"br_viewheight":982,"os_name":null,"os_family":null,"os_manufacturer":null,"os_timezone":"Europe/Berlin","dvce_type":null,"dvce_ismobile":0,"dvce_screenwidth":1920,"dvce_screenheight":1080,"doc_charset":"UTF-8","doc_width":1918,"doc_height":982,"tr_currency":null,"tr_total_base":null,"tr_tax_base":null,"tr_shipping_base":null,"ti_currency":null,"ti_price_base":null,"base_currency":null,"geo_timezone":"Europe/Berlin","mkt_clickid":null,"mkt_network":null,"etl_tags":null,"dvce_sent_tstamp":"2020-02-17 09:28:16.507","refr_domain_userid":null,"refr_dvce_tstamp":null,"derived_contexts":"{\"schema\":\"iglu:com.snowplowanalytics.snowplow/contexts/jsonschema/1-0-1\",\"data\":[{\"schema\":\"iglu:com.snowplowanalytics.snowplow/ua_parser_context/jsonschema/1-0-0\",\"data\":{\"useragentFamily\":\"Firefox\",\"useragentMajor\":\"72\",\"useragentMinor\":\"0\",\"useragentPatch\":null,\"useragentVersion\":\"Firefox 72.0\",\"osFamily\":\"Linux\",\"osMajor\":null,\"osMinor\":null,\"osPatch\":null,\"osPatchMinor\":null,\"osVersion\":\"Linux\",\"deviceFamily\":\"Other\"}}]}","domain_sessionid":"96958bf6-a8bf-4be8-9c67-fd957b6bc8d2","derived_tstamp":"2020-02-17 09:28:16.167","event_vendor":"com.snowplowanalytics.snowplow","event_name":"page_view","event_format":"jsonschema","event_version":"1-0-0","event_fingerprint":"5acdc8f85f9530081d1a71ec430c8756","true_tstamp":null},"raw":{"vendor":"com.snowplowanalytics.snowplow","version":"tp2","parameters":[{"name":"e","value":"pv"},{"name":"duid","value":"d6c468de-0aed-4785-9052-b6bb77b6dddb"},{"name":"vid","value":"13"},{"name":"eid","value":"2dfeb9b7-5a87-4214-8a97-a8b23176856b"},{"name":"url","value":"https://console.snowplowanalytics.com/"},{"name":"aid","value":"console"},{"name":"cx","value":"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"},{"name":"tna","value":"msc-gcp-stg1"},{"name":"cs","value":"UTF-8"},{"name":"cd","value":"24"},{"name":"page","value":"Snowplow BDP"},{"name":"stm","value":"1581931696507"},{"name":"tz","value":"Europe/Berlin"},{"name":"tv","value":"js-2.10.2"},{"name":"vp","value":"1918x982"},{"name":"ds","value":"1918x982"},{"name":"res","value":"1920x1080"},{"name":"cookie","value":"1"},{"name":"p","value":"web"},{"name":"dtm","value":"1581931696114"},{"name":"lang","value":"en-US"},{"name":"sid","value":"96958bf6-a8bf-4be8-9c67-fd957b6bc8d2"}],"contentType":"application/json","loaderName":"ssc-1.0.0-rc4-googlepubsub","encoding":"UTF-8","hostname":"gcp-sandbox-prod1.collector.snplow.net","timestamp":"2020-02-17T09:28:16.560Z","ipAddress":"18.194.133.57","useragent":"Mozilla/5.0 (X11; Linux x86_64; rv:72.0) Gecko/20100101 Firefox/72.0","refererUri":"https://console.snowplowanalytics.com/","headers":["Timeout-Access: ","Host: gcp-sandbox-prod1.collector.snplow.net","User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:72.0) Gecko/20100101 Firefox/72.0","Accept: */*","Accept-Language: en-US, en;q=0.5","Accept-Encoding: gzip, deflate, br","Origin: https://console.snowplowanalytics.com","Referer: https://console.snowplowanalytics.com/","Cookie: sp=510b2f05-27e3-4fd3-b449-a2702926da5e","X-Cloud-Trace-Context: 958285ba723e212998af29cec405e002/12535615945289151925","Via: 1.1 google","X-Forwarded-For: 18.194.133.57, 35.201.76.62","X-Forwarded-Proto: https","Connection: Keep-Alive","application/json"],"userId":"510b2f05-27e3-4fd3-b449-a2702926da5e"}}}}"""
parse(badrow).foreach(println)

Building configurations​

After being able to explore the data structure and figuring out what amendments to introduce, this needs to be turned into a set of individual building blocks. Configuration building blocks can be tested individually using the scripting utility. To test particular steps you can use following pattern:

operations.cast("""{"int": "1"}""", "$.int", CastType.String, CastType.Array)
operations.replace("""{"int": "1"}""", "$.int", "(?U)^.*$", "new")

Validating configurations​

The rules about setting up configurations are fairly strict to prevent unnecessary delay in empty job evaluations. To validate a built configuration it is easy to simply run it through a validator using the scripting utility:

val cfg = """{ "schema": "iglu:com.snowplowanalytics.snowplow/recoveries/jsonschema/3-0-0", "data": { "iglu:com.snowplowanalytics.snowplow.badrows/enrichment_failures/jsonschema/1-0-*": [{"name": "passthrough", "conditions": [], "steps": []}]}}"""
configs.validate(cfg)

Testing jobs locally​

After validating the configuration it makes sense to try out the full configuration locally using a sample, scrambled data:

jobs.test(cfg, badrow)
jobs.testMany(cfg, List(badrow))