[Data] Parse JSON with Formatting API on New Crime Reported from Data.Police.UK API

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New Crime Reported from the Data.Police.UK API

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[Data] Parse JSON with the Formatting API

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Getting Started#

This integration creates a workflow with a Data.Police.UK trigger and Formatting action. When you configure and deploy the workflow, it will run on Pipedream's servers 24x7 for free.

Select this integration
Configure the New Crime Reported trigger
1. Connect your Data.Police.UK account
2. Configure Polling interval
3. Optional- Configure Date
4. Optional- Configure Latitude
5. Optional- Configure Longitude
6. Optional- Configure Poly
Configure the [Data] Parse JSON action
1. Connect your Formatting account
2. Configure Input
Deploy the workflow
Send a test event to validate your setup
Turn on the trigger

Details#

This integration uses pre-built, source-available components from Pipedream's GitHub repo. These components are developed by Pipedream and the community, and verified and maintained by Pipedream.

To contribute an update to an existing component or create a new component, create a PR on GitHub. If you're new to Pipedream component development, you can start with quickstarts for trigger span and action development, and then review the component API reference.

Trigger#

New Crime Reported on Data.Police.UK

Description:Emit new event when a new crime is reported in a specific area.

Version:0.0.1

Key:data_police_uk-crime-reported

View on GitHub

Data.Police.UK Overview#

The Data.Police.UK API provides access to a wide array of UK crime data, allowing users to query information about street-level crimes, outcomes, and the location of police stations. You can leverage this data within Pipedream to build automated workflows that react to new data, analyze crime trends, or integrate with other services to enhance public awareness and safety. With Pipedream, you can create serverless workflows that connect Data.Police.UK API with other apps to streamline tasks, generate reports, or trigger alerts based on crime data.

Trigger Code#

import { ConfigurationError } from "@pipedream/platform";
import moment from "moment";
import common from "../common/base.mjs";

export default {
  ...common,
  key: "data_police_uk-crime-reported",
  name: "New Crime Reported",
  description: "Emit new event when a new crime is reported in a specific area.",
  type: "source",
  version: "0.0.1",
  dedupe: "unique",
  methods: {
    ...common.methods,
    async startEvent(maxResults) {
      const lastDate = this._getLastDate();
      const responseArray = [];
      let tempLastDate = lastDate;

      const {
        dataPoliceUK,
        date,
        lat,
        lng,
        poly,
      } = this;

      if (!lat && !lng && !poly)
        throw new ConfigurationError("It is necessary to use at least one type of localization, lat/lng or poly");

      const reg = new RegExp(/^-?([0-9]{1,2}|1[0-7][0-9]|180)(\.[0-9]{1,10})$/);

      if (!reg.exec(lat) || !reg.exec(lng))
        throw new ConfigurationError("Invalid lat/lng value");

      const crimes = await dataPoliceUK.listCrimes({
        params: {
          date: date
            ? `${date.split("-")[0]}-${date.split("-")[1]}`
            : null,
          lat,
          lng,
          poly,
        },
      });

      crimes.sort((a, b) => {
        return a.id - b.id;
      });

      if (maxResults && (crimes.length > maxResults)) {
        crimes.length = maxResults;
      }

      for await (const crime of crimes) {
        const newLastDate = moment(crime.date).format("YYYY-MM");

        if (moment(newLastDate).isSameOrAfter(lastDate)) {
          if (moment(newLastDate).isAfter(tempLastDate)) {
            tempLastDate = newLastDate;
          }
          responseArray.push(crime);
        } else {
          break;
        }
      }

      if (lastDate != tempLastDate)
        this._setLastDate(tempLastDate);

      for (const responseItem of responseArray) {
        this.$emit(
          responseItem,
          {
            id: responseItem.id,
            summary: `A new crime with id: "${responseItem.id}" was reported!`,
            ts: responseItem.month || new Date(),
          },
        );
      }
    },
  },
};

Trigger Configuration#

This component may be configured based on the props defined in the component code. Pipedream automatically prompts for input values in the UI and CLI.

Label	Prop	Type	Description
Data.Police.UK	`dataPoliceUK`	`app`	This component uses the Data.Police.UK app.
N/A	`db`	`$.service.db`	This component uses `$.service.db` to maintain state between executions.
Polling interval	`timer`	`$.interface.timer`	Pipedream will poll the Data Police UK on this schedule
Date	`date`	`string`	(YYYY-MM) Limit results to a specific month. The latest month will be shown by default
Latitude	`lat`	`string`	Latitude of the requested crime area. You must use either lat/lng or poly, never both.
Longitude	`lng`	`string`	Longitude of the requested crime area. You must use either lat/lng or poly, never both.
Poly	`poly`	`string`	The lat/lng pairs which define the boundary of the custom area. The `poly` parameter is formatted in lat/lng pairs, separated by colons: `[lat],[lng]:[lat],[lng]:[lat],[lng]`. You must use either lat/lng or poly, never both.

Trigger Authentication#

Data.Police.UK uses API keys for authentication. When you connect your Data.Police.UK account, Pipedream securely stores the keys so you can easily authenticate to Data.Police.UK APIs in both code and no-code steps.

The Data.Police.UK API does not enforce authentication.

About Data.Police.UK#

Open data about crime and policing in England, Wales and Northern Ireland.

Action#

[Data] Parse JSON on Formatting

Description:Parse a JSON string

Version:0.0.4

Key:formatting-parse-json

View on GitHub

Action Code#

import { defineAction } from "@pipedream/types";
import app from "../../app/formatting.app.mjs";
export default defineAction({
    name: "[Data] Parse JSON",
    description: "Parse a JSON string",
    key: "formatting-parse-json",
    version: "0.0.4",
    type: "action",
    props: {
        app,
        input: {
            label: "Input",
            description: "A valid JSON format string to be parsed.",
            type: "string",
        },
    },
    async run({ $ }) {
        try {
            const result = JSON.parse(this.input);
            $.export("$summary", "Successfully parsed JSON string");
            return result;
        }
        catch (err) {
            throw new Error("Error parsing input as JSON: " + err.toString());
        }
    },
});