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Github
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< svg xmlns = "http://www.w3.org/2000/svg" aria-hidden = "true" x = "0px" y = "0px" viewBox = "0 0 100 100" width = "15" height = "15" class = "icon outbound" > < path fill = "currentColor" d = "M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z" > < / path > < polygon fill = "currentColor" points = "45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9" > < / polygon > < / svg > < / a > < / div > <!-- --> < / nav > < ul class = "sidebar-links" > < li > < a href = "/" class = "sidebar-link" > Home< / a > < / li > < li > < a href = "/how-it-works.html" class = "sidebar-link" > How it works?< / a > < ul class = "sidebar-sub-headers" > < / ul > < / li > < li > < a href = "/getting-started.html" class = "sidebar-link" > Getting Started< / a > < ul class = "sidebar-sub-headers" > < li class = "sidebar-sub-header" > < a href = "/getting-started.html#installation" class = "sidebar-link" > Installation< / a > < / li > < li class = "sidebar-sub-header" > < a href = "/getting-started.html#importing-the-library" class = "sidebar-link" > Importing the library< / a > < / li > < li class = "sidebar-sub-header" > < a href = "/getting-started.html#connecting-to-a-web3-provider" class = "sidebar-link" > Connecting to a web3 provider< / a > < / li > < li class = "sidebar-sub-header" > < a href = "/getting-started.html#reacting-to-data" class = "sidebar-link" > Reacting to data< / a > < / li > < li class = "sidebar-sub-header" > < a href = "/getting-started.html#tracking-state" class = "sidebar-link" > Tracking state< / a > < / li > < li class = "sidebar-sub-header" > < a href = "/getting-started.html#tracking-events" class = "sidebar-link" > Tracking events< / a > < / li > < li class = "sidebar-sub-header" > < a href = "/getting-started.html#tracking-balances" class = "sidebar-link" > Tracking balances< / a > < / li > < li class = "sidebar-sub-header" > < a href = "/getting-started.html#subscriptions" class = "sidebar-link" > Subscriptions< / a > < / li > < li class = "sidebar-sub-header" > < a href = "/getting-started.html#cleanup" class = "sidebar-link" > Cleanup< / a > < / li > < / ul > < / li > < li > < section class = "sidebar-group depth-0" > < p class = "sidebar-heading open" > < span > Integrations< / span > <!-- --> < / p > < ul class = "sidebar-links sidebar-group-items" > < li > < a href = "/integrations-overview.html" class = "sidebar-link" > Overview< / a > < / li > < li > < a href = "/react.html" class = "sidebar-link" > React< / a > < ul class = "sidebar-sub-headers" > < / ul > < / li > < li > < a href = "/vue.html" class = "sidebar-link" > Vue< / a > < ul class = "sidebar-sub-headers" > < / ul > < / li > < li > < section class = "sidebar-group is-sub-group depth-1" > < p class = "sidebar-heading open" > < span > Redux< / span > <!-- --> < / p > < ul class = "sidebar-links sidebar-group-items" > < li > < a href = "/redux.html" class = "sidebar-link" > redux< / a > < ul class = "sidebar-sub-headers" > < / ul > < / li > < li > < a href = "/redux-observable.html" class = "active sidebar-link" > redux-observable< / a > < / li > < / ul > < / section > < / li > < li > < a href = "/reactive-graphql.html" class = "sidebar-link" > reactive-graphql< / a > < ul class = "sidebar-sub-headers" > < / ul > < / li > < li > < a href = "/apollo-client.html" class = "sidebar-link" > apollo-client< / a > < ul class = "sidebar-sub-headers" > < / ul > < / li > < / ul > < / section > < / li > < li > < a href = "/tutorial.html" class = "sidebar-link" > Tutorial< / a > < / li > < li > < a href = "/api.html" class = "sidebar-link" > API< / a > < ul class = "sidebar-sub-headers" > < li class = "sidebar-sub-header" > < a href = "/api.html#general" class = "sidebar-link" > General< / a > < / li > < li class = "sidebar-sub-header" > < a href = "/api.html#contract-methods" class = "sidebar-link" > Contract methods< / a > < / li > < li class = "sidebar-sub-header" > < a href = "/api.html#low-level-api-for-data-tracking" class = "sidebar-link" > Low level API for data tracking< / a > < / li > < / ul > < / li > < / ul > < / aside > < main class = "page" > < div class = "theme-default-content content__default" > < h1 id = "redux-observable" > < a href = "#redux-observable" aria-hidden = "true" class = "header-anchor" > #< / a > redux-observable< / h1 > < p > < a href = "https://redux-observable.js.org/" target = "_blank" rel = "noopener noreferrer" > redux-observables< svg xmlns = "http://www.w3.org/2000/svg" aria-hidden = "true" x = "0px" y = "0px" viewBox = "0 0 100 100" width = "15" height = "15" class = "icon outbound" > < path fill = "currentColor" d = "M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z" > < / path >
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< span class = "token keyword" > const< / span > < span class = "token function-variable function" > myEpic< / span > < span class = "token operator" > =< / span > < span class = "token parameter" > action$< / span > < span class = "token operator" > => < / span >
action$< span class = "token punctuation" > .< / span > < span class = "token function" > pipe< / span > < span class = "token punctuation" > (< / span >
< span class = "token function" > ofType< / span > < span class = "token punctuation" > (< / span > < span class = "token string" > " SOME_ACTION" < / span > < span class = "token punctuation" > )< / span > < span class = "token punctuation" > ,< / span > < span class = "token comment" > // Execute when the action type is 'INIT'< / span >
< span class = "token function" > switchMap< / span > < span class = "token punctuation" > (< / span > < span class = "token parameter" > action< / span > < span class = "token operator" > => < / span >
subspace
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< span class = "token punctuation" > .< / span > < span class = "token function" > trackEvent< / span > < span class = "token punctuation" > (< / span > MyContract< span class = "token punctuation" > ,< / span > < span class = "token string" > " MyEventName" < / span > < span class = "token punctuation" > ,< / span > < span class = "token punctuation" > {< / span > filter< span class = "token punctuation" > :< / span > < span class = "token punctuation" > {< / span > < span class = "token punctuation" > }< / span > < span class = "token punctuation" > ,< / span > fromBlock< span class = "token punctuation" > :< / span > < span class = "token number" > 1< / span > < span class = "token punctuation" > }< / span > < span class = "token punctuation" > )< / span >
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< span class = "token punctuation" > .< / span > < span class = "token function" > pipe< / span > < span class = "token punctuation" > (< / span >
< span class = "token function" > map< / span > < span class = "token punctuation" > (< / span > myAction< span class = "token punctuation" > )< / span > < span class = "token comment" > // Trigger redux action: MY_ACTION with the eventData< / span >
< span class = "token punctuation" > )< / span >
< span class = "token punctuation" > )< / span >
< span class = "token punctuation" > )< / span > < span class = "token punctuation" > ;< / span >
< span class = "token comment" > // ...< / span >
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< / code > < / pre > < div class = "line-numbers-wrapper" > < span class = "line-number" > 1< / span > < br > < span class = "line-number" > 2< / span > < br > < span class = "line-number" > 3< / span > < br > < span class = "line-number" > 4< / span > < br > < span class = "line-number" > 5< / span > < br > < span class = "line-number" > 6< / span > < br > < span class = "line-number" > 7< / span > < br > < span class = "line-number" > 8< / span > < br > < span class = "line-number" > 9< / span > < br > < span class = "line-number" > 10< / span > < br > < span class = "line-number" > 11< / span > < br > < span class = "line-number" > 12< / span > < br > < span class = "line-number" > 13< / span > < br > < span class = "line-number" > 14< / span > < br > < span class = "line-number" > 15< / span > < br > < / div > < / div > < div class = "tip custom-block" > < p > An example is available in < a href = "https://github.com/status-im/subspace/tree/master/examples/redux-observable" target = "_blank" rel = "noopener noreferrer" > Github< svg xmlns = "http://www.w3.org/2000/svg" aria-hidden = "true" x = "0px" y = "0px" viewBox = "0 0 100 100" width = "15" height = "15" class = "icon outbound" > < path fill = "currentColor" d = "M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z" > < / path > < polygon fill = "currentColor" points = "45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9" > < / polygon > < / svg > < / a > < / p > < / div > < h4 id = "further-read" > < a href = "#further-read" aria-hidden = "true" class = "header-anchor" > #< / a > Further read< / h4 > < ul > < li > < a href = "https://redux-observable.js.org/docs/basics/Epics.html" target = "_blank" rel = "noopener noreferrer" > Epics< svg xmlns = "http://www.w3.org/2000/svg" aria-hidden = "true" x = "0px" y = "0px" viewBox = "0 0 100 100" width = "15" height = "15" class = "icon outbound" > < path fill = "currentColor" d = "M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z" > < / path > < polygon fill = "currentColor" points = "45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9" > < / polygon > < / svg > < / a > < / li > < / ul > < / div > < footer class = "page-edit" > <!-- --> <!-- --> < / footer > < div class = "page-nav" > < p class = "inner" > < span class = "prev" >
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