Small sample flow on how to perform a HTTP Request to a REST API, parse it, and visualise it in a Chart in Dashboard 2.0
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REST API to Dashboard 2.0
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[ | |
{ | |
"id": "da9a67e8c3ea7742", | |
"type": "inject", | |
"z": "204422ef719f74d6", | |
"name": "", | |
"props": [ | |
{ | |
"p": "payload" | |
} | |
], | |
"repeat": "", | |
"crontab": "00 12 * * *", | |
"once": false, | |
"onceDelay": 0.1, | |
"topic": "", | |
"payload": "[]", | |
"payloadType": "json", | |
"x": 150, | |
"y": 100, | |
"wires": [ | |
[ | |
"efd22a89abc3c06f", | |
"a6851a41dba2c39b" | |
] | |
] | |
}, | |
{ | |
"id": "a6851a41dba2c39b", | |
"type": "http request", | |
"z": "204422ef719f74d6", | |
"name": "", | |
"method": "GET", | |
"ret": "obj", | |
"paytoqs": "ignore", | |
"url": "https://api.npmjs.org/downloads/range/last-month/@flowforge/node-red-dashboard", | |
"tls": "", | |
"persist": false, | |
"proxy": "", | |
"insecureHTTPParser": false, | |
"authType": "", | |
"senderr": false, | |
"headers": [], | |
"x": 330, | |
"y": 100, | |
"wires": [ | |
[ | |
"7931f7457880f7c3" | |
] | |
] | |
}, | |
{ | |
"id": "7931f7457880f7c3", | |
"type": "change", | |
"z": "204422ef719f74d6", | |
"name": "Only get the Downloads", | |
"rules": [ | |
{ | |
"t": "set", | |
"p": "payload", | |
"pt": "msg", | |
"to": "payload.downloads", | |
"tot": "msg" | |
} | |
], | |
"action": "", | |
"property": "", | |
"from": "", | |
"to": "", | |
"reg": false, | |
"x": 550, | |
"y": 100, | |
"wires": [ | |
[ | |
"74e3b15c7b09726a" | |
] | |
] | |
}, | |
{ | |
"id": "74e3b15c7b09726a", | |
"type": "link out", | |
"z": "204422ef719f74d6", | |
"name": "link out 1", | |
"mode": "link", | |
"links": [ | |
"43e4aff34b989e83" | |
], | |
"x": 715, | |
"y": 100, | |
"wires": [] | |
}, | |
{ | |
"id": "43e4aff34b989e83", | |
"type": "link in", | |
"z": "204422ef719f74d6", | |
"name": "Normalize daily data", | |
"links": [ | |
"74e3b15c7b09726a" | |
], | |
"x": 95, | |
"y": 180, | |
"wires": [ | |
[ | |
"ca8c62bfbdf75715" | |
] | |
] | |
}, | |
{ | |
"id": "ca8c62bfbdf75715", | |
"type": "split", | |
"z": "204422ef719f74d6", | |
"name": "", | |
"splt": "\\n", | |
"spltType": "str", | |
"arraySplt": 1, | |
"arraySpltType": "len", | |
"stream": false, | |
"addname": "", | |
"x": 210, | |
"y": 180, | |
"wires": [ | |
[ | |
"3f462d2c7e3bca50" | |
] | |
] | |
}, | |
{ | |
"id": "3f462d2c7e3bca50", | |
"type": "change", | |
"z": "204422ef719f74d6", | |
"name": "Prepare data for the chart", | |
"rules": [ | |
{ | |
"t": "set", | |
"p": "payload.x", | |
"pt": "msg", | |
"to": "$toMillis(payload.day)", | |
"tot": "jsonata" | |
}, | |
{ | |
"t": "set", | |
"p": "payload.y", | |
"pt": "msg", | |
"to": "payload.downloads", | |
"tot": "msg" | |
}, | |
{ | |
"t": "delete", | |
"p": "payload.day", | |
"pt": "msg" | |
}, | |
{ | |
"t": "delete", | |
"p": "payload.downloads", | |
"pt": "msg" | |
} | |
], | |
"action": "", | |
"property": "", | |
"from": "", | |
"to": "", | |
"reg": false, | |
"x": 410, | |
"y": 180, | |
"wires": [ | |
[ | |
"f4e6a85b8cb8dac0" | |
] | |
] | |
}, | |
{ | |
"id": "4b71fc28c2da66e7", | |
"type": "ui-chart", | |
"z": "204422ef719f74d6", | |
"group": "bac8effac57694e1", | |
"name": "", | |
"label": "Daily Downloads", | |
"order": 9007199254740991, | |
"chartType": "line", | |
"xAxisType": "time", | |
"removeOlder": 1, | |
"removeOlderUnit": "3600", | |
"removeOlderPoints": "", | |
"colors": [ | |
"#1f77b4", | |
"#aec7e8", | |
"#ff7f0e", | |
"#2ca02c", | |
"#98df8a", | |
"#d62728", | |
"#ff9896", | |
"#9467bd", | |
"#c5b0d5" | |
], | |
"width": 0, | |
"height": 0, | |
"className": "", | |
"x": 230, | |
"y": 260, | |
"wires": [ | |
[] | |
] | |
}, | |
{ | |
"id": "f4e6a85b8cb8dac0", | |
"type": "link out", | |
"z": "204422ef719f74d6", | |
"name": "link out 2", | |
"mode": "link", | |
"links": [ | |
"6f7068445bfe4311" | |
], | |
"x": 575, | |
"y": 180, | |
"wires": [] | |
}, | |
{ | |
"id": "6f7068445bfe4311", | |
"type": "link in", | |
"z": "204422ef719f74d6", | |
"name": "Update the chart", | |
"links": [ | |
"f4e6a85b8cb8dac0", | |
"79067215ee592ec9", | |
"efd22a89abc3c06f" | |
], | |
"x": 95, | |
"y": 260, | |
"wires": [ | |
[ | |
"4b71fc28c2da66e7" | |
] | |
] | |
}, | |
{ | |
"id": "efd22a89abc3c06f", | |
"type": "link out", | |
"z": "204422ef719f74d6", | |
"name": "link out 3", | |
"mode": "link", | |
"links": [ | |
"6f7068445bfe4311" | |
], | |
"x": 315, | |
"y": 60, | |
"wires": [] | |
}, | |
{ | |
"id": "bac8effac57694e1", | |
"type": "ui-group", | |
"name": "NPM Downloads", | |
"page": "f10b4d0259e43aeb", | |
"width": "6", | |
"height": "1", | |
"order": -1, | |
"disp": true | |
}, | |
{ | |
"id": "f10b4d0259e43aeb", | |
"type": "ui-page", | |
"name": "Main", | |
"ui": "b4498e02eeb28614", | |
"path": "/", | |
"layout": "grid", | |
"theme": "2c5d702b11de7dd1", | |
"order": -1 | |
}, | |
{ | |
"id": "b4498e02eeb28614", | |
"type": "ui-base", | |
"name": "REST Dashboard", | |
"path": "/dashboard" | |
}, | |
{ | |
"id": "2c5d702b11de7dd1", | |
"type": "ui-theme", | |
"name": "Theme Name", | |
"colors": { | |
"surface": "#ffffff", | |
"primary": "#0094ce", | |
"bgPage": "#eeeeee", | |
"groupBg": "#ffffff", | |
"groupOutline": "#cccccc" | |
} | |
} | |
] |
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