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March 14, 2019 12:57
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OpenWhisk web action that returns a HTML page
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| function main({reading}) { | |
| var script = ` | |
| <script> | |
| function latest_readings() { | |
| const Http = new XMLHttpRequest(); | |
| //URL to getLatestTenReadings web action | |
| const url='https://OPENWHISK_HOST:OPENWHISK_PORT/api/v1/web/guest/default/getLatestTenReadings'; | |
| Http.open("GET", url); | |
| Http.send(); | |
| Http.onreadystatechange=(e)=> | |
| { | |
| var obj = JSON.parse(Http.responseText); | |
| var i = 9; | |
| document.getElementById("readings").innerHTML = ""; | |
| while (i > 4) { | |
| document.getElementById("readings").innerHTML += obj[i].body; | |
| document.getElementById("readings").innerHTML += "<br />"; | |
| i--; | |
| } | |
| } | |
| } | |
| latest_readings(); | |
| setInterval(latest_readings,10000); | |
| </script>`; | |
| return { | |
| body: ` | |
| <html> | |
| <style> | |
| #readings { | |
| position: fixed; | |
| top: 50%; | |
| left: 50%; | |
| transform: translate(-50%, -50%); | |
| border-style: solid; | |
| border-width: 2px; | |
| } | |
| </style> | |
| <body> | |
| <h3 id="readings"></h3> | |
| ${script} | |
| </body> | |
| </html>` | |
| }; | |
| } |
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