{ "openapi": "3.1.0", "info": { "title": "Road crashes, Tasmania query API", "version": "2026-10-04", "summary": "Filter, page and aggregate Road crashes, Tasmania from Department of State Growth.", "description": "The query API returns only the rows you ask for, as JSON, NDJSON or CSV, from the same typed rows as the files. It needs no key. The API allows 60 requests in 10 seconds from one address. Above that it answers 429 for 10 seconds with a `Retry-After` header, a `RateLimit-Policy` header and a JSON body that gives the limit. Every API answer carries the same `RateLimit-Policy`. A client should wait the `Retry-After` seconds, or read the files, which have no limit. Every JSON answer carries the version, licence and attribution. CSV and NDJSON answers carry them in response headers. Department of State Growth has not endorsed this site. The whole site is described in https://publicdata.au/openapi.json.", "license": { "name": "CC BY 4.0", "url": "https://creativecommons.org/licenses/by/4.0/" } }, "servers": [ { "url": "https://publicdata.au" } ], "externalDocs": { "url": "https://publicdata.au/d/tas-road-crashes/#query" }, "tags": [ { "name": "query" } ], "paths": { "/api/v1/datasets/tas-road-crashes/rows": { "get": { "tags": [ "query" ], "summary": "Query Road crashes, Tasmania", "operationId": "queryRows_tas_road_crashes", "description": "Rows of Road crashes, Tasmania in the newest loaded version, filtered and paged. Each filter is `field=operator.value` in the query string, and every filter must match. A number or date field compares as a number or date, and a text field compares as text. Values are case-sensitive except with `ilike`. Prefix `not.` to negate a filter, as `not.eq.value`. Operators: `eq.value`, `neq.value`, `gt.value`, `gte.value`, `lt.value`, `lte.value`, `like.*text*`, `ilike.*text*`, `in.(a,b,c)`, `is.null`.", "parameters": [ { "name": "id", "in": "query", "schema": { "type": "string" }, "description": "integer. The feature layer's object id. From 1652 to 53192771." }, { "name": "vcrn", "in": "query", "schema": { "type": "string" }, "description": "string. The police crash report number. Kept as text." }, { "name": "description", "in": "query", "schema": { "type": "string" }, "description": "string. The DCA (Definitions for Coding Accidents) code and its description.", "examples": [ "eq.199 - Unknown" ] }, { "name": "crash_date_time", "in": "query", "schema": { "type": "string" }, "description": "datetime. UTC, from the layer's date field. From 1998-01-08T18:30:00 to 2026-10-04T02:08:00." }, { "name": "severity", "in": "query", "schema": { "type": "string" }, "description": "string. Values: Fatal, First Aid, Minor, Not known, Property Damage Only, Serious.", "examples": [ "eq.Serious" ] }, { "name": "visited", "in": "query", "schema": { "type": "string" }, "description": "string. Values: No, Not entered, Not known, Not stated, Yes.", "examples": [ "eq.Yes" ] }, { "name": "surface_type", "in": "query", "schema": { "type": "string" }, "description": "string. Values: Not known, Not stated, Sealed, Unsealed.", "examples": [ "eq.Unsealed" ] }, { "name": "light_condition", "in": "query", "schema": { "type": "string" }, "description": "string. Values: Darkness (with street light), Darkness (without street light), Dawn / Dusk, Daylight, Not known, Not stated.", "examples": [ "eq.Not stated" ] }, { "name": "centre_line", "in": "query", "schema": { "type": "string" }, "description": "string. Values: Double - one broken, one continuous, Double broken, Double continuous, None, Not known, Not stated, Other, Single Continuous, Single broken.", "examples": [ "eq.Single broken" ] }, { "name": "speed_zone", "in": "query", "schema": { "type": "string" }, "description": "string. Kept as text to preserve leading zeros, for example 060. Values: 040, 040 school, 050, 060, 070, 080, 090, 100, 110, <40, Not known, Not stated.", "examples": [ "eq.Not stated" ] }, { "name": "location_description", "in": "query", "schema": { "type": "string" }, "description": "string." }, { "name": "longitude", "in": "query", "schema": { "type": "string" }, "description": "number. Decimal degrees, WGS84, from the point geometry. From 143.83947333177298 to 148.34993622219028." }, { "name": "latitude", "in": "query", "schema": { "type": "string" }, "description": "number. Decimal degrees, WGS84, from the point geometry. From -43.61168608303143 to -39.59623862225963." }, { "name": "sa2_2021_code", "in": "query", "schema": { "type": "string" }, "description": "string. Code of the Statistical Area Level 2 (2021) the point falls in. Joined by location from abs-sa2-2021, not published by the publisher.", "examples": [ "eq.604031098" ] }, { "name": "sa2_2021_name", "in": "query", "schema": { "type": "string" }, "description": "string. Name of the Statistical Area Level 2 (2021) the point falls in. Joined by location from abs-sa2-2021, not published by the publisher.", "examples": [ "eq.Youngtown - Relbia" ] }, { "name": "lga_2025_code", "in": "query", "schema": { "type": "string" }, "description": "string. Code of the Local Government Area (2025) the point falls in. Joined by location from abs-lga-2025, not published by the publisher.", "examples": [ "eq.65810" ] }, { "name": "lga_2025_name", "in": "query", "schema": { "type": "string" }, "description": "string. Name of the Local Government Area (2025) the point falls in. Joined by location from abs-lga-2025, not published by the publisher.", "examples": [ "eq.West Tamar" ] }, { "name": "sal_2021_code", "in": "query", "schema": { "type": "string" }, "description": "string. Code of the Suburb and Locality (2021) the point falls in. Joined by location from abs-suburbs-localities-2021, not published by the publisher." }, { "name": "sal_2021_name", "in": "query", "schema": { "type": "string" }, "description": "string. Name of the Suburb and Locality (2021) the point falls in. Joined by location from abs-suburbs-localities-2021, not published by the publisher." }, { "name": "poa_2021_code", "in": "query", "schema": { "type": "string" }, "description": "string. Code of the Postal Area (2021) the point falls in. Joined by location from abs-postal-areas-2021, not published by the publisher.", "examples": [ "eq.7470" ] }, { "name": "poa_2021_name", "in": "query", "schema": { "type": "string" }, "description": "string. Name of the Postal Area (2021) the point falls in. Joined by location from abs-postal-areas-2021, not published by the publisher.", "examples": [ "eq.7470" ] }, { "name": "sed_2025_code", "in": "query", "schema": { "type": "string" }, "description": "string. Code of the State Electoral Division (2025) the point falls in. Joined by location from abs-state-electoral-divisions-2025, not published by the publisher.", "examples": [ "eq.60514" ] }, { "name": "sed_2025_name", "in": "query", "schema": { "type": "string" }, "description": "string. Name of the State Electoral Division (2025) the point falls in. Joined by location from abs-state-electoral-divisions-2025, not published by the publisher.", "examples": [ "eq.Lyons (Rumney)" ] }, { "name": "ced_2025_code", "in": "query", "schema": { "type": "string" }, "description": "string. Code of the Commonwealth Electoral Division (2025) the point falls in. Joined by location from abs-federal-electoral-divisions-2025, not published by the publisher. Values: 601, 602, 603, 604, 605.", "examples": [ "eq.605" ] }, { "name": "ced_2025_name", "in": "query", "schema": { "type": "string" }, "description": "string. Name of the Commonwealth Electoral Division (2025) the point falls in. Joined by location from abs-federal-electoral-divisions-2025, not published by the publisher. Values: Bass, Braddon, Clark, Franklin, Lyons.", "examples": [ "eq.Lyons" ] }, { "name": "select", "in": "query", "schema": { "type": "string" }, "description": "Fields to return, comma-separated. Every field when absent." }, { "name": "order", "in": "query", "schema": { "type": "string" }, "description": "`field.asc` or `field.desc`, comma-separated. The publisher's row order when absent." }, { "name": "limit", "in": "query", "schema": { "type": "integer", "minimum": 1, "maximum": 10000, "default": 100 }, "description": "Rows per page, 1 to 10,000. 100 when absent." }, { "name": "offset", "in": "query", "schema": { "type": "integer", "minimum": 0, "default": 0 }, "description": "Rows to skip. The `next` URL in each answer sets it for you." }, { "name": "format", "in": "query", "schema": { "type": "string", "enum": [ "json", "ndjson", "csv" ], "default": "json" }, "description": "`json`, `ndjson` or `csv`. JSON carries the provenance header, and the others carry it in response headers." } ], "responses": { "200": { "description": "Rows with the version, licence and attribution. `next` is the URL of the following page, or null." }, "400": { "description": "The query names a field the dataset does not have, or a value of the wrong type." }, "404": { "description": "The dataset or version is not loaded for queries." }, "429": { "description": "More than 60 requests in 10 seconds from one address. Blocked for 10 seconds. Wait `Retry-After` seconds.", "headers": { "Retry-After": { "schema": { "type": "integer" }, "description": "Seconds until the block lifts." }, "RateLimit-Policy": { "schema": { "type": "string" }, "description": "The limit, as \"fair-use\";q=60;w=10." } }, "content": { "application/json": { "schema": { "type": "object", "properties": { "error": { "type": "string" }, "status": { "type": "integer", "const": 429 }, "limit": { "type": "integer" }, "window_seconds": { "type": "integer" }, "block_seconds": { "type": "integer" }, "docs": { "type": "string", "format": "uri" }, "files": { "type": "string" } } } } } } } } }, "/api/v1/datasets/tas-road-crashes/versions/{version}/rows": { "get": { "tags": [ "query" ], "summary": "Query Road crashes, Tasmania", "operationId": "queryRows_tas_road_crashes_version", "description": "Rows of Road crashes, Tasmania in one dated version, filtered and paged. Each filter is `field=operator.value` in the query string, and every filter must match. A number or date field compares as a number or date, and a text field compares as text. Values are case-sensitive except with `ilike`. Prefix `not.` to negate a filter, as `not.eq.value`. Operators: `eq.value`, `neq.value`, `gt.value`, `gte.value`, `lt.value`, `lte.value`, `like.*text*`, `ilike.*text*`, `in.(a,b,c)`, `is.null`.", "parameters": [ { "name": "version", "in": "path", "required": true, "schema": { "type": "string", "format": "date" }, "description": "A dated version loaded for queries, from the versions path. Answers for a dated version never change." }, { "name": "id", "in": "query", "schema": { "type": "string" }, "description": "integer. The feature layer's object id. From 1652 to 53192771." }, { "name": "vcrn", "in": "query", "schema": { "type": "string" }, "description": "string. The police crash report number. Kept as text." }, { "name": "description", "in": "query", "schema": { "type": "string" }, "description": "string. The DCA (Definitions for Coding Accidents) code and its description.", "examples": [ "eq.199 - Unknown" ] }, { "name": "crash_date_time", "in": "query", "schema": { "type": "string" }, "description": "datetime. UTC, from the layer's date field. From 1998-01-08T18:30:00 to 2026-10-04T02:08:00." }, { "name": "severity", "in": "query", "schema": { "type": "string" }, "description": "string. Values: Fatal, First Aid, Minor, Not known, Property Damage Only, Serious.", "examples": [ "eq.Serious" ] }, { "name": "visited", "in": "query", "schema": { "type": "string" }, "description": "string. Values: No, Not entered, Not known, Not stated, Yes.", "examples": [ "eq.Yes" ] }, { "name": "surface_type", "in": "query", "schema": { "type": "string" }, "description": "string. Values: Not known, Not stated, Sealed, Unsealed.", "examples": [ "eq.Unsealed" ] }, { "name": "light_condition", "in": "query", "schema": { "type": "string" }, "description": "string. Values: Darkness (with street light), Darkness (without street light), Dawn / Dusk, Daylight, Not known, Not stated.", "examples": [ "eq.Not stated" ] }, { "name": "centre_line", "in": "query", "schema": { "type": "string" }, "description": "string. Values: Double - one broken, one continuous, Double broken, Double continuous, None, Not known, Not stated, Other, Single Continuous, Single broken.", "examples": [ "eq.Single broken" ] }, { "name": "speed_zone", "in": "query", "schema": { "type": "string" }, "description": "string. Kept as text to preserve leading zeros, for example 060. Values: 040, 040 school, 050, 060, 070, 080, 090, 100, 110, <40, Not known, Not stated.", "examples": [ "eq.Not stated" ] }, { "name": "location_description", "in": "query", "schema": { "type": "string" }, "description": "string." }, { "name": "longitude", "in": "query", "schema": { "type": "string" }, "description": "number. Decimal degrees, WGS84, from the point geometry. From 143.83947333177298 to 148.34993622219028." }, { "name": "latitude", "in": "query", "schema": { "type": "string" }, "description": "number. Decimal degrees, WGS84, from the point geometry. From -43.61168608303143 to -39.59623862225963." }, { "name": "sa2_2021_code", "in": "query", "schema": { "type": "string" }, "description": "string. Code of the Statistical Area Level 2 (2021) the point falls in. Joined by location from abs-sa2-2021, not published by the publisher.", "examples": [ "eq.604031098" ] }, { "name": "sa2_2021_name", "in": "query", "schema": { "type": "string" }, "description": "string. Name of the Statistical Area Level 2 (2021) the point falls in. Joined by location from abs-sa2-2021, not published by the publisher.", "examples": [ "eq.Youngtown - Relbia" ] }, { "name": "lga_2025_code", "in": "query", "schema": { "type": "string" }, "description": "string. Code of the Local Government Area (2025) the point falls in. Joined by location from abs-lga-2025, not published by the publisher.", "examples": [ "eq.65810" ] }, { "name": "lga_2025_name", "in": "query", "schema": { "type": "string" }, "description": "string. Name of the Local Government Area (2025) the point falls in. Joined by location from abs-lga-2025, not published by the publisher.", "examples": [ "eq.West Tamar" ] }, { "name": "sal_2021_code", "in": "query", "schema": { "type": "string" }, "description": "string. Code of the Suburb and Locality (2021) the point falls in. Joined by location from abs-suburbs-localities-2021, not published by the publisher." }, { "name": "sal_2021_name", "in": "query", "schema": { "type": "string" }, "description": "string. Name of the Suburb and Locality (2021) the point falls in. Joined by location from abs-suburbs-localities-2021, not published by the publisher." }, { "name": "poa_2021_code", "in": "query", "schema": { "type": "string" }, "description": "string. Code of the Postal Area (2021) the point falls in. Joined by location from abs-postal-areas-2021, not published by the publisher.", "examples": [ "eq.7470" ] }, { "name": "poa_2021_name", "in": "query", "schema": { "type": "string" }, "description": "string. Name of the Postal Area (2021) the point falls in. Joined by location from abs-postal-areas-2021, not published by the publisher.", "examples": [ "eq.7470" ] }, { "name": "sed_2025_code", "in": "query", "schema": { "type": "string" }, "description": "string. Code of the State Electoral Division (2025) the point falls in. Joined by location from abs-state-electoral-divisions-2025, not published by the publisher.", "examples": [ "eq.60514" ] }, { "name": "sed_2025_name", "in": "query", "schema": { "type": "string" }, "description": "string. Name of the State Electoral Division (2025) the point falls in. Joined by location from abs-state-electoral-divisions-2025, not published by the publisher.", "examples": [ "eq.Lyons (Rumney)" ] }, { "name": "ced_2025_code", "in": "query", "schema": { "type": "string" }, "description": "string. Code of the Commonwealth Electoral Division (2025) the point falls in. Joined by location from abs-federal-electoral-divisions-2025, not published by the publisher. Values: 601, 602, 603, 604, 605.", "examples": [ "eq.605" ] }, { "name": "ced_2025_name", "in": "query", "schema": { "type": "string" }, "description": "string. Name of the Commonwealth Electoral Division (2025) the point falls in. Joined by location from abs-federal-electoral-divisions-2025, not published by the publisher. Values: Bass, Braddon, Clark, Franklin, Lyons.", "examples": [ "eq.Lyons" ] }, { "name": "select", "in": "query", "schema": { "type": "string" }, "description": "Fields to return, comma-separated. Every field when absent." }, { "name": "order", "in": "query", "schema": { "type": "string" }, "description": "`field.asc` or `field.desc`, comma-separated. The publisher's row order when absent." }, { "name": "limit", "in": "query", "schema": { "type": "integer", "minimum": 1, "maximum": 10000, "default": 100 }, "description": "Rows per page, 1 to 10,000. 100 when absent." }, { "name": "offset", "in": "query", "schema": { "type": "integer", "minimum": 0, "default": 0 }, "description": "Rows to skip. The `next` URL in each answer sets it for you." }, { "name": "format", "in": "query", "schema": { "type": "string", "enum": [ "json", "ndjson", "csv" ], "default": "json" }, "description": "`json`, `ndjson` or `csv`. JSON carries the provenance header, and the others carry it in response headers." } ], "responses": { "200": { "description": "Rows with the version, licence and attribution. `next` is the URL of the following page, or null." }, "400": { "description": "The query names a field the dataset does not have, or a value of the wrong type." }, "404": { "description": "The dataset or version is not loaded for queries." }, "429": { "description": "More than 60 requests in 10 seconds from one address. Blocked for 10 seconds. Wait `Retry-After` seconds.", "headers": { "Retry-After": { "schema": { "type": "integer" }, "description": "Seconds until the block lifts." }, "RateLimit-Policy": { "schema": { "type": "string" }, "description": "The limit, as \"fair-use\";q=60;w=10." } }, "content": { "application/json": { "schema": { "type": "object", "properties": { "error": { "type": "string" }, "status": { "type": "integer", "const": 429 }, "limit": { "type": "integer" }, "window_seconds": { "type": "integer" }, "block_seconds": { "type": "integer" }, "docs": { "type": "string", "format": "uri" }, "files": { "type": "string" } } } } } } } } }, "/api/v1/datasets/{slug}/aggregate": { "get": { "tags": [ "query" ], "summary": "Counts, sums, averages, minimums and maximums by group", "operationId": "aggregate", "description": "Groups and totals of any dataset in the newest loaded version. Filters work as they do on rows. Each filter is `field=operator.value` in the query string, and every filter must match. A number or date field compares as a number or date, and a text field compares as text. Values are case-sensitive except with `ilike`. Prefix `not.` to negate a filter, as `not.eq.value`. Operators: `eq.value`, `neq.value`, `gt.value`, `gte.value`, `lt.value`, `lte.value`, `like.*text*`, `ilike.*text*`, `in.(a,b,c)`, `is.null`.", "parameters": [ { "name": "slug", "in": "path", "required": true, "schema": { "type": "string", "enum": [ "tas-road-crashes" ] }, "description": "The dataset's slug, as in its page URL `/d//`." }, { "name": "group", "in": "query", "schema": { "type": "string" }, "description": "On `aggregate`, fields to group by, comma-separated." }, { "name": "metric", "in": "query", "schema": { "type": "string", "default": "count" }, "description": "On `aggregate`, `count`, `sum.field`, `avg.field`, `min.field` or `max.field`, comma-separated. `count` when absent." }, { "name": "id", "in": "query", "schema": { "type": "string" }, "description": "integer. The feature layer's object id. From 1652 to 53192771." }, { "name": "vcrn", "in": "query", "schema": { "type": "string" }, "description": "string. The police crash report number. Kept as text." }, { "name": "description", "in": "query", "schema": { "type": "string" }, "description": "string. The DCA (Definitions for Coding Accidents) code and its description.", "examples": [ "eq.199 - Unknown" ] }, { "name": "crash_date_time", "in": "query", "schema": { "type": "string" }, "description": "datetime. UTC, from the layer's date field. From 1998-01-08T18:30:00 to 2026-10-04T02:08:00." }, { "name": "severity", "in": "query", "schema": { "type": "string" }, "description": "string. Values: Fatal, First Aid, Minor, Not known, Property Damage Only, Serious.", "examples": [ "eq.Serious" ] }, { "name": "visited", "in": "query", "schema": { "type": "string" }, "description": "string. Values: No, Not entered, Not known, Not stated, Yes.", "examples": [ "eq.Yes" ] }, { "name": "surface_type", "in": "query", "schema": { "type": "string" }, "description": "string. Values: Not known, Not stated, Sealed, Unsealed.", "examples": [ "eq.Unsealed" ] }, { "name": "light_condition", "in": "query", "schema": { "type": "string" }, "description": "string. Values: Darkness (with street light), Darkness (without street light), Dawn / Dusk, Daylight, Not known, Not stated.", "examples": [ "eq.Not stated" ] }, { "name": "centre_line", "in": "query", "schema": { "type": "string" }, "description": "string. Values: Double - one broken, one continuous, Double broken, Double continuous, None, Not known, Not stated, Other, Single Continuous, Single broken.", "examples": [ "eq.Single broken" ] }, { "name": "speed_zone", "in": "query", "schema": { "type": "string" }, "description": "string. Kept as text to preserve leading zeros, for example 060. Values: 040, 040 school, 050, 060, 070, 080, 090, 100, 110, <40, Not known, Not stated.", "examples": [ "eq.Not stated" ] }, { "name": "location_description", "in": "query", "schema": { "type": "string" }, "description": "string." }, { "name": "longitude", "in": "query", "schema": { "type": "string" }, "description": "number. Decimal degrees, WGS84, from the point geometry. From 143.83947333177298 to 148.34993622219028." }, { "name": "latitude", "in": "query", "schema": { "type": "string" }, "description": "number. Decimal degrees, WGS84, from the point geometry. From -43.61168608303143 to -39.59623862225963." }, { "name": "sa2_2021_code", "in": "query", "schema": { "type": "string" }, "description": "string. Code of the Statistical Area Level 2 (2021) the point falls in. Joined by location from abs-sa2-2021, not published by the publisher.", "examples": [ "eq.604031098" ] }, { "name": "sa2_2021_name", "in": "query", "schema": { "type": "string" }, "description": "string. Name of the Statistical Area Level 2 (2021) the point falls in. Joined by location from abs-sa2-2021, not published by the publisher.", "examples": [ "eq.Youngtown - Relbia" ] }, { "name": "lga_2025_code", "in": "query", "schema": { "type": "string" }, "description": "string. Code of the Local Government Area (2025) the point falls in. Joined by location from abs-lga-2025, not published by the publisher.", "examples": [ "eq.65810" ] }, { "name": "lga_2025_name", "in": "query", "schema": { "type": "string" }, "description": "string. Name of the Local Government Area (2025) the point falls in. Joined by location from abs-lga-2025, not published by the publisher.", "examples": [ "eq.West Tamar" ] }, { "name": "sal_2021_code", "in": "query", "schema": { "type": "string" }, "description": "string. Code of the Suburb and Locality (2021) the point falls in. Joined by location from abs-suburbs-localities-2021, not published by the publisher." }, { "name": "sal_2021_name", "in": "query", "schema": { "type": "string" }, "description": "string. Name of the Suburb and Locality (2021) the point falls in. Joined by location from abs-suburbs-localities-2021, not published by the publisher." }, { "name": "poa_2021_code", "in": "query", "schema": { "type": "string" }, "description": "string. Code of the Postal Area (2021) the point falls in. Joined by location from abs-postal-areas-2021, not published by the publisher.", "examples": [ "eq.7470" ] }, { "name": "poa_2021_name", "in": "query", "schema": { "type": "string" }, "description": "string. Name of the Postal Area (2021) the point falls in. Joined by location from abs-postal-areas-2021, not published by the publisher.", "examples": [ "eq.7470" ] }, { "name": "sed_2025_code", "in": "query", "schema": { "type": "string" }, "description": "string. Code of the State Electoral Division (2025) the point falls in. Joined by location from abs-state-electoral-divisions-2025, not published by the publisher.", "examples": [ "eq.60514" ] }, { "name": "sed_2025_name", "in": "query", "schema": { "type": "string" }, "description": "string. Name of the State Electoral Division (2025) the point falls in. Joined by location from abs-state-electoral-divisions-2025, not published by the publisher.", "examples": [ "eq.Lyons (Rumney)" ] }, { "name": "ced_2025_code", "in": "query", "schema": { "type": "string" }, "description": "string. Code of the Commonwealth Electoral Division (2025) the point falls in. Joined by location from abs-federal-electoral-divisions-2025, not published by the publisher. Values: 601, 602, 603, 604, 605.", "examples": [ "eq.605" ] }, { "name": "ced_2025_name", "in": "query", "schema": { "type": "string" }, "description": "string. Name of the Commonwealth Electoral Division (2025) the point falls in. Joined by location from abs-federal-electoral-divisions-2025, not published by the publisher. Values: Bass, Braddon, Clark, Franklin, Lyons.", "examples": [ "eq.Lyons" ] }, { "name": "order", "in": "query", "schema": { "type": "string" }, "description": "`field.asc` or `field.desc`, comma-separated. The publisher's row order when absent." }, { "name": "limit", "in": "query", "schema": { "type": "integer", "minimum": 1, "maximum": 10000, "default": 100 }, "description": "Rows per page, 1 to 10,000. 100 when absent." }, { "name": "offset", "in": "query", "schema": { "type": "integer", "minimum": 0, "default": 0 }, "description": "Rows to skip. The `next` URL in each answer sets it for you." }, { "name": "format", "in": "query", "schema": { "type": "string", "enum": [ "json", "ndjson", "csv" ], "default": "json" }, "description": "`json`, `ndjson` or `csv`. JSON carries the provenance header, and the others carry it in response headers." } ], "responses": { "200": { "description": "Rows with the version, licence and attribution. `next` is the URL of the following page, or null." }, "400": { "description": "The query names a field the dataset does not have, or a value of the wrong type." }, "404": { "description": "The dataset or version is not loaded for queries." }, "429": { "description": "More than 60 requests in 10 seconds from one address. Blocked for 10 seconds. Wait `Retry-After` seconds.", "headers": { "Retry-After": { "schema": { "type": "integer" }, "description": "Seconds until the block lifts." }, "RateLimit-Policy": { "schema": { "type": "string" }, "description": "The limit, as \"fair-use\";q=60;w=10." } }, "content": { "application/json": { "schema": { "type": "object", "properties": { "error": { "type": "string" }, "status": { "type": "integer", "const": 429 }, "limit": { "type": "integer" }, "window_seconds": { "type": "integer" }, "block_seconds": { "type": "integer" }, "docs": { "type": "string", "format": "uri" }, "files": { "type": "string" } } } } } } } } }, "/api/v1/datasets/{slug}/versions/{version}/aggregate": { "get": { "tags": [ "query" ], "summary": "Counts, sums, averages, minimums and maximums by group", "operationId": "aggregateVersion", "description": "Groups and totals of any dataset in one dated version. Filters work as they do on rows. Each filter is `field=operator.value` in the query string, and every filter must match. A number or date field compares as a number or date, and a text field compares as text. Values are case-sensitive except with `ilike`. Prefix `not.` to negate a filter, as `not.eq.value`. Operators: `eq.value`, `neq.value`, `gt.value`, `gte.value`, `lt.value`, `lte.value`, `like.*text*`, `ilike.*text*`, `in.(a,b,c)`, `is.null`.", "parameters": [ { "name": "slug", "in": "path", "required": true, "schema": { "type": "string", "enum": [ "tas-road-crashes" ] }, "description": "The dataset's slug, as in its page URL `/d//`." }, { "name": "version", "in": "path", "required": true, "schema": { "type": "string", "format": "date" }, "description": "A dated version loaded for queries, from the versions path. Answers for a dated version never change." }, { "name": "group", "in": "query", "schema": { "type": "string" }, "description": "On `aggregate`, fields to group by, comma-separated." }, { "name": "metric", "in": "query", "schema": { "type": "string", "default": "count" }, "description": "On `aggregate`, `count`, `sum.field`, `avg.field`, `min.field` or `max.field`, comma-separated. `count` when absent." }, { "name": "id", "in": "query", "schema": { "type": "string" }, "description": "integer. The feature layer's object id. From 1652 to 53192771." }, { "name": "vcrn", "in": "query", "schema": { "type": "string" }, "description": "string. The police crash report number. Kept as text." }, { "name": "description", "in": "query", "schema": { "type": "string" }, "description": "string. The DCA (Definitions for Coding Accidents) code and its description.", "examples": [ "eq.199 - Unknown" ] }, { "name": "crash_date_time", "in": "query", "schema": { "type": "string" }, "description": "datetime. UTC, from the layer's date field. From 1998-01-08T18:30:00 to 2026-10-04T02:08:00." }, { "name": "severity", "in": "query", "schema": { "type": "string" }, "description": "string. Values: Fatal, First Aid, Minor, Not known, Property Damage Only, Serious.", "examples": [ "eq.Serious" ] }, { "name": "visited", "in": "query", "schema": { "type": "string" }, "description": "string. Values: No, Not entered, Not known, Not stated, Yes.", "examples": [ "eq.Yes" ] }, { "name": "surface_type", "in": "query", "schema": { "type": "string" }, "description": "string. Values: Not known, Not stated, Sealed, Unsealed.", "examples": [ "eq.Unsealed" ] }, { "name": "light_condition", "in": "query", "schema": { "type": "string" }, "description": "string. Values: Darkness (with street light), Darkness (without street light), Dawn / Dusk, Daylight, Not known, Not stated.", "examples": [ "eq.Not stated" ] }, { "name": "centre_line", "in": "query", "schema": { "type": "string" }, "description": "string. Values: Double - one broken, one continuous, Double broken, Double continuous, None, Not known, Not stated, Other, Single Continuous, Single broken.", "examples": [ "eq.Single broken" ] }, { "name": "speed_zone", "in": "query", "schema": { "type": "string" }, "description": "string. Kept as text to preserve leading zeros, for example 060. Values: 040, 040 school, 050, 060, 070, 080, 090, 100, 110, <40, Not known, Not stated.", "examples": [ "eq.Not stated" ] }, { "name": "location_description", "in": "query", "schema": { "type": "string" }, "description": "string." }, { "name": "longitude", "in": "query", "schema": { "type": "string" }, "description": "number. Decimal degrees, WGS84, from the point geometry. From 143.83947333177298 to 148.34993622219028." }, { "name": "latitude", "in": "query", "schema": { "type": "string" }, "description": "number. Decimal degrees, WGS84, from the point geometry. From -43.61168608303143 to -39.59623862225963." }, { "name": "sa2_2021_code", "in": "query", "schema": { "type": "string" }, "description": "string. Code of the Statistical Area Level 2 (2021) the point falls in. Joined by location from abs-sa2-2021, not published by the publisher.", "examples": [ "eq.604031098" ] }, { "name": "sa2_2021_name", "in": "query", "schema": { "type": "string" }, "description": "string. Name of the Statistical Area Level 2 (2021) the point falls in. Joined by location from abs-sa2-2021, not published by the publisher.", "examples": [ "eq.Youngtown - Relbia" ] }, { "name": "lga_2025_code", "in": "query", "schema": { "type": "string" }, "description": "string. Code of the Local Government Area (2025) the point falls in. Joined by location from abs-lga-2025, not published by the publisher.", "examples": [ "eq.65810" ] }, { "name": "lga_2025_name", "in": "query", "schema": { "type": "string" }, "description": "string. Name of the Local Government Area (2025) the point falls in. Joined by location from abs-lga-2025, not published by the publisher.", "examples": [ "eq.West Tamar" ] }, { "name": "sal_2021_code", "in": "query", "schema": { "type": "string" }, "description": "string. Code of the Suburb and Locality (2021) the point falls in. Joined by location from abs-suburbs-localities-2021, not published by the publisher." }, { "name": "sal_2021_name", "in": "query", "schema": { "type": "string" }, "description": "string. Name of the Suburb and Locality (2021) the point falls in. Joined by location from abs-suburbs-localities-2021, not published by the publisher." }, { "name": "poa_2021_code", "in": "query", "schema": { "type": "string" }, "description": "string. Code of the Postal Area (2021) the point falls in. Joined by location from abs-postal-areas-2021, not published by the publisher.", "examples": [ "eq.7470" ] }, { "name": "poa_2021_name", "in": "query", "schema": { "type": "string" }, "description": "string. Name of the Postal Area (2021) the point falls in. Joined by location from abs-postal-areas-2021, not published by the publisher.", "examples": [ "eq.7470" ] }, { "name": "sed_2025_code", "in": "query", "schema": { "type": "string" }, "description": "string. Code of the State Electoral Division (2025) the point falls in. Joined by location from abs-state-electoral-divisions-2025, not published by the publisher.", "examples": [ "eq.60514" ] }, { "name": "sed_2025_name", "in": "query", "schema": { "type": "string" }, "description": "string. Name of the State Electoral Division (2025) the point falls in. Joined by location from abs-state-electoral-divisions-2025, not published by the publisher.", "examples": [ "eq.Lyons (Rumney)" ] }, { "name": "ced_2025_code", "in": "query", "schema": { "type": "string" }, "description": "string. Code of the Commonwealth Electoral Division (2025) the point falls in. Joined by location from abs-federal-electoral-divisions-2025, not published by the publisher. Values: 601, 602, 603, 604, 605.", "examples": [ "eq.605" ] }, { "name": "ced_2025_name", "in": "query", "schema": { "type": "string" }, "description": "string. Name of the Commonwealth Electoral Division (2025) the point falls in. Joined by location from abs-federal-electoral-divisions-2025, not published by the publisher. Values: Bass, Braddon, Clark, Franklin, Lyons.", "examples": [ "eq.Lyons" ] }, { "name": "order", "in": "query", "schema": { "type": "string" }, "description": "`field.asc` or `field.desc`, comma-separated. The publisher's row order when absent." }, { "name": "limit", "in": "query", "schema": { "type": "integer", "minimum": 1, "maximum": 10000, "default": 100 }, "description": "Rows per page, 1 to 10,000. 100 when absent." }, { "name": "offset", "in": "query", "schema": { "type": "integer", "minimum": 0, "default": 0 }, "description": "Rows to skip. The `next` URL in each answer sets it for you." }, { "name": "format", "in": "query", "schema": { "type": "string", "enum": [ "json", "ndjson", "csv" ], "default": "json" }, "description": "`json`, `ndjson` or `csv`. JSON carries the provenance header, and the others carry it in response headers." } ], "responses": { "200": { "description": "Rows with the version, licence and attribution. `next` is the URL of the following page, or null." }, "400": { "description": "The query names a field the dataset does not have, or a value of the wrong type." }, "404": { "description": "The dataset or version is not loaded for queries." }, "429": { "description": "More than 60 requests in 10 seconds from one address. Blocked for 10 seconds. Wait `Retry-After` seconds.", "headers": { "Retry-After": { "schema": { "type": "integer" }, "description": "Seconds until the block lifts." }, "RateLimit-Policy": { "schema": { "type": "string" }, "description": "The limit, as \"fair-use\";q=60;w=10." } }, "content": { "application/json": { "schema": { "type": "object", "properties": { "error": { "type": "string" }, "status": { "type": "integer", "const": 429 }, "limit": { "type": "integer" }, "window_seconds": { "type": "integer" }, "block_seconds": { "type": "integer" }, "docs": { "type": "string", "format": "uri" }, "files": { "type": "string" } } } } } } } } }, "/api/v1/datasets/{slug}/versions": { "get": { "tags": [ "query" ], "summary": "The versions loaded for queries, newest first, with the URLs to query each", "operationId": "queryVersions", "parameters": [ { "name": "slug", "in": "path", "required": true, "schema": { "type": "string", "enum": [ "tas-road-crashes" ] }, "description": "The dataset's slug, as in its page URL `/d//`." } ], "responses": { "200": { "description": "Loaded versions with row counts and URLs." }, "404": { "description": "The dataset or version is not loaded for queries." }, "429": { "description": "More than 60 requests in 10 seconds from one address. Blocked for 10 seconds. Wait `Retry-After` seconds.", "headers": { "Retry-After": { "schema": { "type": "integer" }, "description": "Seconds until the block lifts." }, "RateLimit-Policy": { "schema": { "type": "string" }, "description": "The limit, as \"fair-use\";q=60;w=10." } }, "content": { "application/json": { "schema": { "type": "object", "properties": { "error": { "type": "string" }, "status": { "type": "integer", "const": 429 }, "limit": { "type": "integer" }, "window_seconds": { "type": "integer" }, "block_seconds": { "type": "integer" }, "docs": { "type": "string", "format": "uri" }, "files": { "type": "string" } } } } } } } } } } }