feat(examples): modify examples so that they can be re-used also in t…

…he browser

examples/README.md

@@ -3,6 +3,7 @@
 - Prerequisites
   - [yarn](https://yarnpkg.com/lang/en/docs/install/) installed
   - Run `yarn --cwd ..` in this directory
+  - Run `yarn --cwd .. build` in this directory, the referenced client library is then compiled
   - Change variables in [./env.ts](env.ts) to configure connection to your InfluxDB instance. The file can be used as-is against a [docker influxDB v2.0 installation](https://v2.docs.influxdata.com/v2.0/get-started/)
 - Examples are executable. If it does not work for you, run `yarn ts-node EXAMPLE.ts`.
   - [setupInfluxDB.ts](./setupInfluxDB.ts)

examples/query.ts

@@ -18,7 +18,7 @@ queryApi.queryRows(fluxQuery, {
     const o = tableMeta.toObject(row)
     // console.log(JSON.stringify(o, null, 2))
     console.log(
-      `${o._time} ${o._measurement} at ${o.hostname}: ${o._field}=${o._value}`
+      `${o._time} ${o._measurement} at '${o.location}': ${o._field}=${o._value}`
     )
   },
   error(error: Error) {

examples/write.ts

@@ -5,10 +5,11 @@
 
 import {InfluxDB, Point} from '@bonitoo-io/influxdb-client'
 import {url, token, org, bucket} from './env'
+import {hostname} from 'os'
 
 const writeApi = new InfluxDB({url, token}).getWriteApi(org, bucket)
 // setup default tags for all writes through this API
-writeApi.useDefaultTags({hostname: require('os').hostname()})
+writeApi.useDefaultTags({location: hostname()})
 
 console.log('*** WRITE POINTS ***')
 // writes points