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eslint configuration for getting-started examples #2297

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merged 9 commits into from
Aug 23, 2021
Merged

eslint configuration for getting-started examples #2297

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1c8d320
chore: add eslint config to getting-started
alisabzevari Jun 23, 2021
173e687
chore: apply lint on getting-started
alisabzevari Jun 23, 2021
d0a11c3
chore: fix strict rule in getting-started lint config
alisabzevari Jun 26, 2021
0403b72
chore: import examples eslintrc for getting-started eslint config
alisabzevari Aug 3, 2021
e82df3e
chore: rearrage lint scripts in package.json
alisabzevari Aug 8, 2021
a034441
chore: restore removed require from getting-started example
alisabzevari Aug 8, 2021
7caebe4
chore: remove duplicate require in getting-started
alisabzevari Aug 8, 2021
ca3e371
Merge branch 'main' into getting-started-eslint
obecny Aug 23, 2021
54dc78a
Merge branch 'main' into getting-started-eslint
obecny Aug 23, 2021
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0 examples/.eslintrc → examples/.eslintrc.json
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6 changes: 6 additions & 0 deletions getting-started/.eslintrc.js
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Original file line number Diff line number Diff line change
@@ -0,0 +1,6 @@
/* eslint-disable global-require */
/* eslint-disable strict */

module.exports = {
...require('../examples/.eslintrc.json'),
};
24 changes: 12 additions & 12 deletions getting-started/example/app.js
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@@ -1,40 +1,40 @@
"use strict";
'use strict';

const PORT = process.env.PORT || "8080";
const PORT = process.env.PORT || '8080';

const express = require("express");
const axios = require("axios");
const express = require('express');
const axios = require('axios');

const app = express();

app.get("/", (req, res) => {
app.get('/', (req, res) => {
axios
.get(`http://localhost:${PORT}/middle-tier`)
.then(() => axios.get(`http://localhost:${PORT}/middle-tier`))
.then(result => {
.then((result) => {
res.send(result.data);
})
.catch(err => {
.catch((err) => {
console.error(err);
res.status(500).send();
});
});

app.get("/middle-tier", (req, res) => {
app.get('/middle-tier', (req, res) => {
axios
.get(`http://localhost:${PORT}/backend`)
.then(() => axios.get(`http://localhost:${PORT}/backend`))
.then(result => {
.then((result) => {
res.send(result.data);
})
.catch(err => {
.catch((err) => {
console.error(err);
res.status(500).send();
});
});

app.get("/backend", (req, res) => {
res.send("Hello from the backend");
app.get('/backend', (req, res) => {
res.send('Hello from the backend');
});

app.listen(parseInt(PORT, 10), () => {
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27 changes: 14 additions & 13 deletions getting-started/monitored-example/app.js
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@@ -1,42 +1,43 @@
"use strict";
'use strict';

const PORT = process.env.PORT || "8080";
const PORT = process.env.PORT || '8080';

const express = require("express");
const axios = require("axios");
const express = require('express');
const axios = require('axios');

const { countAllRequests } = require('./monitoring');

const { countAllRequests } = require("./monitoring");
const app = express();
app.use(countAllRequests());

app.get("/", (req, res) => {
app.get('/', (req, res) => {
axios
.get(`http://localhost:${PORT}/middle-tier`)
.then(() => axios.get(`http://localhost:${PORT}/middle-tier`))
.then(result => {
.then((result) => {
res.send(result.data);
})
.catch(err => {
.catch((err) => {
console.error(err);
res.status(500).send();
});
});

app.get("/middle-tier", (req, res) => {
app.get('/middle-tier', (req, res) => {
axios
.get(`http://localhost:${PORT}/backend`)
.then(() => axios.get(`http://localhost:${PORT}/backend`))
.then(result => {
.then((result) => {
res.send(result.data);
})
.catch(err => {
.catch((err) => {
console.error(err);
res.status(500).send();
});
});

app.get("/backend", (req, res) => {
res.send("Hello from the backend");
app.get('/backend', (req, res) => {
res.send('Hello from the backend');
});

app.listen(parseInt(PORT, 10), () => {
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45 changes: 21 additions & 24 deletions getting-started/monitored-example/monitoring.js
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@@ -1,11 +1,11 @@
"use strict";
'use strict';

const { MeterProvider } = require('@opentelemetry/sdk-metrics-base');
const { PrometheusExporter } = require('@opentelemetry/exporter-prometheus');
const prometheusPort = PrometheusExporter.DEFAULT_OPTIONS.port
const prometheusEndpoint = PrometheusExporter.DEFAULT_OPTIONS.endpoint

const prometheusPort = PrometheusExporter.DEFAULT_OPTIONS.port;
const prometheusEndpoint = PrometheusExporter.DEFAULT_OPTIONS.endpoint;

const exporter = new PrometheusExporter(
{
startServer: true,
Expand All @@ -16,28 +16,25 @@ const exporter = new PrometheusExporter(
);
},
);

const meter = new MeterProvider({
exporter,
interval: 1000,
}).getMeter('your-meter-name');
const requestCount = meter.createCounter("requests", {
description: "Count all incoming requests"

const requestCount = meter.createCounter('requests', {
description: 'Count all incoming requests',
});

const boundInstruments = new Map();

module.exports.countAllRequests = () => {
return (req, res, next) => {
if (!boundInstruments.has(req.path)) {
const labels = { route: req.path };
const boundCounter = requestCount.bind(labels);
boundInstruments.set(req.path, boundCounter);
}

boundInstruments.get(req.path).add(1);
next();
};
};

module.exports.countAllRequests = () => (req, res, next) => {
if (!boundInstruments.has(req.path)) {
const labels = { route: req.path };
const boundCounter = requestCount.bind(labels);
boundInstruments.set(req.path, boundCounter);
}

boundInstruments.get(req.path).add(1);
next();
};
24 changes: 12 additions & 12 deletions getting-started/traced-example/app.js
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Original file line number Diff line number Diff line change
@@ -1,40 +1,40 @@
"use strict";
'use strict';

const PORT = process.env.PORT || "8080";
const PORT = process.env.PORT || '8080';

const express = require("express");
const axios = require("axios");
const express = require('express');
const axios = require('axios');

const app = express();

app.get("/", (req, res) => {
app.get('/', (req, res) => {
axios
.get(`http://localhost:${PORT}/middle-tier`)
.then(() => axios.get(`http://localhost:${PORT}/middle-tier`))
.then(result => {
.then((result) => {
res.send(result.data);
})
.catch(err => {
.catch((err) => {
console.error(err);
res.status(500).send();
});
});

app.get("/middle-tier", (req, res) => {
app.get('/middle-tier', (req, res) => {
axios
.get(`http://localhost:${PORT}/backend`)
.then(() => axios.get(`http://localhost:${PORT}/backend`))
.then(result => {
.then((result) => {
res.send(result.data);
})
.catch(err => {
.catch((err) => {
console.error(err);
res.status(500).send();
});
});

app.get("/backend", (req, res) => {
res.send("Hello from the backend");
app.get('/backend', (req, res) => {
res.send('Hello from the backend');
});

app.listen(parseInt(PORT, 10), () => {
Expand Down
18 changes: 9 additions & 9 deletions getting-started/traced-example/tracing.js
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@@ -1,18 +1,18 @@
"use strict";
'use strict';

const { NodeTracerProvider } = require("@opentelemetry/sdk-trace-node");
const { SimpleSpanProcessor } = require("@opentelemetry/sdk-trace-base");
const { NodeTracerProvider } = require('@opentelemetry/sdk-trace-node');
const { SimpleSpanProcessor } = require('@opentelemetry/sdk-trace-base');
const { Resource } = require('@opentelemetry/resources');
const { SemanticResourceAttributes } = require('@opentelemetry/semantic-conventions');
const { ZipkinExporter } = require("@opentelemetry/exporter-zipkin");
const { ZipkinExporter } = require('@opentelemetry/exporter-zipkin');
const { registerInstrumentations } = require('@opentelemetry/instrumentation');
const { ExpressInstrumentation } = require('@opentelemetry/instrumentation-express');
const { HttpInstrumentation } = require('@opentelemetry/instrumentation-http');

const provider = new NodeTracerProvider({
resource: new Resource({
[SemanticResourceAttributes.SERVICE_NAME]: "getting-started",
})
[SemanticResourceAttributes.SERVICE_NAME]: 'getting-started',
}),
});

provider.addSpanProcessor(
Expand All @@ -21,8 +21,8 @@ provider.addSpanProcessor(
// If you are running your tracing backend on another host,
// you can point to it using the `url` parameter of the
// exporter config.
})
)
}),
),
);

provider.register();
Expand All @@ -35,4 +35,4 @@ registerInstrumentations({
],
});

console.log("tracing initialized");
console.log('tracing initialized');
16 changes: 16 additions & 0 deletions getting-started/ts-example/.eslintrc
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@@ -0,0 +1,16 @@
{
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in general, why can't you use our eslint.config.js from main folder and extend from it ?

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That's what he did above https://github.com/open-telemetry/opentelemetry-js/pull/2297/files#diff-4bb0b44ed2e9b719ea2593f63cf9aebd302f9e7a1f3a109e5c35f6ee59d95d87R4

I think he probably just forgot to apply the suggestion to both eslintrc files.

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I was not able to use the project eslint config for typescript files because it requires that getting-started being added to the projects. I get this error when using the project eslint config:

0:0  error  Parsing error: "parserOptions.project" has been set for @typescript-eslint/parser.
The file does not match your project config: getting-started/ts-example/traced-example/tracing.ts.
The file must be included in at least one of the projects provided

"plugins": ["@typescript-eslint", "node"],
"extends": ["eslint:recommended", "plugin:@typescript-eslint/recommended"],
"parser": "@typescript-eslint/parser",
"rules": {
"@typescript-eslint/no-var-requires": 0,
"import/prefer-default-export": "off",
"import/extensions": [
"error",
"ignorePackages",
{
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"": "never"
}
]
}
}
22 changes: 11 additions & 11 deletions getting-started/ts-example/example/app.ts
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@@ -1,38 +1,38 @@
import * as express from "express";
import axios from "axios";
import * as express from 'express';
import axios from 'axios';

const PORT: string = process.env.PORT || "8080";
const PORT: string = process.env.PORT || '8080';

const app = express();

app.get("/", (req, res) => {
app.get('/', (req, res) => {
axios
.get(`http://localhost:${PORT}/middle-tier`)
.then(() => axios.get(`http://localhost:${PORT}/middle-tier`))
.then(response => {
.then((response) => {
res.send(response.data);
})
.catch(err => {
.catch((err) => {
console.error(err);
res.status(500).send();
});
});

app.get("/middle-tier", (req, res) => {
app.get('/middle-tier', (req, res) => {
axios
.get(`http://localhost:${PORT}/backend`)
.then(() => axios.get(`http://localhost:${PORT}/backend`))
.then(response => {
.then((response) => {
res.send(response.data);
})
.catch(err => {
.catch((err) => {
console.error(err);
res.status(500).send();
});
});

app.get("/backend", (req, res) => {
res.send("Hello from the backend");
app.get('/backend', (req, res) => {
res.send('Hello from the backend');
});

app.listen(parseInt(PORT, 10), () => {
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24 changes: 12 additions & 12 deletions getting-started/ts-example/monitored-example/app.ts
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@@ -1,40 +1,40 @@
import * as express from "express";
import axios from "axios";

const PORT: string = process.env.PORT || "8080";
import * as express from 'express';
import axios from 'axios';

import { countAllRequests } from './monitoring';

const PORT: string = process.env.PORT || '8080';
const app = express();
app.use(countAllRequests());

app.get("/", (req, res) => {
app.get('/', (req, res) => {
axios
.get(`http://localhost:${PORT}/middle-tier`)
.then(() => axios.get(`http://localhost:${PORT}/middle-tier`))
.then(result => {
.then((result) => {
res.send(result.data);
})
.catch(err => {
.catch((err) => {
console.error(err);
res.status(500).send();
});
});

app.get("/middle-tier", (req, res) => {
app.get('/middle-tier', (req, res) => {
axios
.get(`http://localhost:${PORT}/backend`)
.then(() => axios.get(`http://localhost:${PORT}/backend`))
.then(result => {
.then((result) => {
res.send(result.data);
})
.catch(err => {
.catch((err) => {
console.error(err);
res.status(500).send();
});
});

app.get("/backend", (req, res) => {
res.send("Hello from the backend");
app.get('/backend', (req, res) => {
res.send('Hello from the backend');
});

app.listen(parseInt(PORT, 10), () => {
Expand Down
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