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Implement Link Up Interval #37

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Implement Link Up Interval #37

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c5421d0
Implement Link Up Interval
ady624 Jan 24, 2024
d3e682d
Update documentation
ady624 Jan 25, 2024
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3 changes: 3 additions & 0 deletions README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -178,6 +178,9 @@ Other available values for `CONNECT_LINK_UP_REGION`:
For folks connected to many patients, you can provide the patient ID by setting
the `CONNECT_LINK_UP_PATIENT_ID` variable.

Optionally, you can override the default 5-minute refresh interval by providing
`CONNECT_LINK_UP_INTERVAL` as an integer representing minutes.

### Minimed Carelink

To synchronize from Medtronic Minimed Carelink, set the following
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7 changes: 4 additions & 3 deletions lib/sources/librelinkup.js
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Expand Up @@ -155,12 +155,12 @@ function linkUpSource (opts, axios) {
}
// var last_glucose_at = new Date(last_known.sgvs.mills);
var last_glucose_at = last_known.entries;
var missing = ((new Date( )).getTime( ) - last_glucose_at.getTime( )) / (1000 * 60 * 5)
var missing = ((new Date( )).getTime( ) - last_glucose_at.getTime( )) / (1000 * 60 * opts.linkUpInterval)
if (missing > 1 && missing < 3) {
console.log("READJUSTING SHOULD MAKE A DIFFERENCE MISSING", missing);

}
var next_due = last_glucose_at.getTime( ) + (Math.ceil(missing) * 1000 * 60 * 5);
var next_due = last_glucose_at.getTime( ) + (Math.ceil(missing) * 1000 * 60 * opts.linkUpInterval);
var buffer_lag = 18000; // 18 second buffer
var jitter = Math.floor(Math.random( ) * 1000 * 18); // 18 second random
var align_to = next_due + buffer_lag + jitter;
Expand Down Expand Up @@ -200,7 +200,7 @@ function linkUpSource (opts, axios) {
maxRetries: 2
},
// expect new data 5 minutes after last success
expected_data_interval_ms: 5 * 60 * 1000,
expected_data_interval_ms: opts.linkUpInterval * 60 * 1000,
backoff: {
// wait 2.5 minutes * 2^attempt
interval_ms: 2.5 * 60 * 1000
Expand All @@ -220,6 +220,7 @@ linkUpSource.validate = function validate_inputs (input) {
linkUpUsername: input.linkUpUsername,
linkUpPassword: input.linkUpPassword,
linkUpPatientId: input.linkUpPatientId,
linkUpInterval: input.linkUpInterval || 5,
linkUpVersion: input.linkUpVersion || Defaults.Version,
linkUpProduct: input.linkUpProduct || Defaults.Product,
baseURL
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