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nikkatalnikov/apeiron

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streamProviders.js

Summary

Maintainability
C
1 day
Test Coverage

Function fromWebSocket has 30 lines of code (exceeds 25 allowed). Consider refactoring.
Open

  fromWebSocket(endpoint, protocol) {
    const ws = new WebSocket(endpoint, protocol)
    const close = ws.close.bind(ws)

    const observable = Observable.create((wsObservable) => {
Severity: Minor
Found in streamProviders.js - About 1 hr to fix

    Function fromWebSocket has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.
    Open

      fromWebSocket(endpoint, protocol) {
    const ws = new WebSocket(endpoint, protocol)
    const close = ws.close.bind(ws)

    const observable = Observable.create((wsObservable) => {
    Severity: Minor
    Found in streamProviders.js - About 25 mins to fix

    Cognitive Complexity

    Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

    A method's cognitive complexity is based on a few simple rules:

    • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
    • Code is considered more complex for each "break in the linear flow of the code"
    • Code is considered more complex when "flow breaking structures are nested"

    Further reading

    Identical blocks of code found in 2 locations. Consider refactoring.
    Open

        this.dataStream = this.service
      .concatMap(data => Observable.of(data))
      .do(() => void 0, err => this.errorStream.next(err))
      .retry()
      .share()
    Severity: Major
    Found in streamProviders.js and 1 other location - About 2 hrs to fix
    streamProviders.js on lines 127..131

    Duplicated Code

    Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

    Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

    When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

    Tuning

    This issue has a mass of 79.

    We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

    The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

    If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

    See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

    Refactorings

    Further Reading

    Identical blocks of code found in 2 locations. Consider refactoring.
    Open

        this.dataStream = this.service
      .concatMap(data => Observable.of(data))
      .do(() => void 0, err => this.errorStream.next(err))
      .retry()
      .share()
    Severity: Major
    Found in streamProviders.js and 1 other location - About 2 hrs to fix
    streamProviders.js on lines 204..208

    Duplicated Code

    Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

    Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

    When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

    Tuning

    This issue has a mass of 79.

    We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

    The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

    If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

    See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

    Refactorings

    Further Reading

    Similar blocks of code found in 2 locations. Consider refactoring.
    Open

      groupByUrl(url) {
    const endpoints = Object
      .keys(this.endpoints)
      .filter(x => this.endpoints[x].url === url)
    Severity: Major
    Found in streamProviders.js and 1 other location - About 1 hr to fix
    streamProviders.js on lines 69..75

    Duplicated Code

    Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

    Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

    When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

    Tuning

    This issue has a mass of 69.

    We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

    The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

    If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

    See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

    Refactorings

    Further Reading

    Similar blocks of code found in 2 locations. Consider refactoring.
    Open

      groupByMethod(method) {
    const endpoints = Object
      .keys(this.endpoints)
      .filter(x => this.endpoints[x].method === method)
    Severity: Major
    Found in streamProviders.js and 1 other location - About 1 hr to fix
    streamProviders.js on lines 77..83

    Duplicated Code

    Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

    Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

    When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

    Tuning

    This issue has a mass of 69.

    We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

    The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

    If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

    See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

    Refactorings

    Further Reading

    Identical blocks of code found in 2 locations. Consider refactoring.
    Open

        if (!Number.isInteger(delay)) {
      this.errorStream.next(new Error(`${delay} is not integer`))
      throw new Error(`${delay} is not integer`)
    }
    Severity: Major
    Found in streamProviders.js and 1 other location - About 1 hr to fix
    streamProviders.js on lines 180..183

    Duplicated Code

    Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

    Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

    When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

    Tuning

    This issue has a mass of 61.

    We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

    The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

    If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

    See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

    Refactorings

    Further Reading

    Identical blocks of code found in 2 locations. Consider refactoring.
    Open

        if (!Number.isInteger(delay)) {
      this.errorStream.next(new Error(`${delay} is not integer`))
      throw new Error(`${delay} is not integer`)
    }
    Severity: Major
    Found in streamProviders.js and 1 other location - About 1 hr to fix
    streamProviders.js on lines 56..59

    Duplicated Code

    Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

    Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

    When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

    Tuning

    This issue has a mass of 61.

    We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

    The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

    If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

    See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

    Refactorings

    Further Reading

    Unable to resolve path to module 'axios'.
    Open

    import axios from 'axios'
    Severity: Minor
    Found in streamProviders.js by eslint

    For more information visit Source: http://eslint.org/docs/rules/

    Unable to resolve path to module 'rxjs'.
    Open

    import { Subscriber, Observable, Subject } from 'rxjs'
    Severity: Minor
    Found in streamProviders.js by eslint

    For more information visit Source: http://eslint.org/docs/rules/

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