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feat: expose Cosmos DB query interface
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,18 @@ | ||
| { | ||
| "bindings": [ | ||
| { | ||
| "authLevel": "anonymous", | ||
| "type": "httpTrigger", | ||
| "direction": "in", | ||
| "name": "req", | ||
| "methods": ["post"], | ||
| "route": "history" | ||
| }, | ||
| { | ||
| "type": "http", | ||
| "direction": "out", | ||
| "name": "res" | ||
| } | ||
| ], | ||
| "scriptFile": "../dist/queryHistoricalDeviceData/queryHistoricalDeviceData.js" | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,14 @@ | ||
| import { parseConnectionString } from './parseConnectionString' | ||
|
|
||
| describe('parseConnectionString', () => { | ||
| it('should parse a connection string', () => { | ||
| expect( | ||
| parseConnectionString( | ||
| 'AccountEndpoint=https://xxxx.documents.azure.com:443/;AccountKey=oKHTAxxx92GKkq3CDzeCd1WYnVslfIUaQqOa7Xw==;', | ||
| ), | ||
| ).toEqual({ | ||
| AccountEndpoint: 'https://xxxx.documents.azure.com:443/', | ||
| AccountKey: 'oKHTAxxx92GKkq3CDzeCd1WYnVslfIUaQqOa7Xw==', | ||
| }) | ||
| }) | ||
| }) |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,14 @@ | ||
| export const parseConnectionString = ( | ||
| connectionString: string, | ||
| ): { [key: string]: string } => | ||
| connectionString | ||
| .replace(/;$/, '') | ||
| .split(';') | ||
| .reduce((conn, s) => { | ||
| const [k] = s.split('=', 1) | ||
| const v = s.replace(new RegExp(`^${k}=`), '') | ||
| return { | ||
| ...conn, | ||
| [k]: v, | ||
| } | ||
| }, {} as { [key: string]: string }) |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,38 @@ | ||
| import { AzureFunction, Context, HttpRequest } from '@azure/functions' | ||
| import { log } from '../lib/log' | ||
| import { r } from '../lib/http' | ||
| import { CosmosClient } from '@azure/cosmos' | ||
| import { parseConnectionString } from './parseConnectionString' | ||
|
|
||
| const { AccountEndpoint, AccountKey } = parseConnectionString( | ||
| process.env.HISTORICAL_DATA_COSMOSDB_CONNECTION_STRING ?? '', | ||
| ) | ||
| const cosmosClient = new CosmosClient({ | ||
| endpoint: AccountEndpoint, | ||
| key: AccountKey, | ||
| }) | ||
|
|
||
| const container = cosmosClient.database('deviceMessages').container('updates') | ||
|
|
||
| /** | ||
| * Query historical device updates stored in Cosmos DB | ||
| */ | ||
| const queryHistoricalDeviceData: AzureFunction = async ( | ||
| context: Context, | ||
| req: HttpRequest, | ||
| ): Promise<void> => { | ||
| log(context)({ req }) | ||
| try { | ||
| const result = { | ||
| result: (await container.items.query(req.body.query).fetchAll()) | ||
| .resources, | ||
| } | ||
| log(context)({ result }) | ||
| context.res = r(result) | ||
| } catch (error) { | ||
| console.error({ error }) | ||
| context.res = r(error, 500) | ||
| } | ||
| } | ||
|
|
||
| export default queryHistoricalDeviceData |
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